/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0720.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 14:00:48,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 14:00:48,681 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 14:00:48,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 14:00:48,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 14:00:48,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 14:00:48,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 14:00:48,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 14:00:48,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 14:00:48,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 14:00:48,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 14:00:48,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 14:00:48,703 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 14:00:48,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 14:00:48,704 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 14:00:48,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 14:00:48,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 14:00:48,705 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 14:00:48,705 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 14:00:48,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 14:00:48,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 14:00:48,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 14:00:48,711 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 14:00:48,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 14:00:48,712 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 14:00:48,712 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 14:00:48,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 14:00:48,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 14:00:48,713 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 14:00:48,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:00:48,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 14:00:48,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 14:00:48,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 14:00:48,713 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 14:00:48,714 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 14:00:48,714 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 14:00:48,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 14:00:48,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 14:00:48,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 14:00:48,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 14:00:48,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 14:00:48,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 14:00:48,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 14:00:48,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 14:00:48,918 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 14:00:48,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0720.c [2024-11-03 14:00:50,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 14:00:50,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 14:00:50,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0720.c [2024-11-03 14:00:50,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927cbafbd/4ad51e10093a4db79ade271d8d0eca11/FLAG288e224cc [2024-11-03 14:00:50,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927cbafbd/4ad51e10093a4db79ade271d8d0eca11 [2024-11-03 14:00:50,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 14:00:50,466 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 14:00:50,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 14:00:50,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 14:00:50,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 14:00:50,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2639bb78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50, skipping insertion in model container [2024-11-03 14:00:50,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 14:00:50,686 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0720.c[3072,3085] [2024-11-03 14:00:50,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:00:50,702 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 14:00:50,724 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0720.c[3072,3085] [2024-11-03 14:00:50,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 14:00:50,738 INFO L204 MainTranslator]: Completed translation [2024-11-03 14:00:50,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50 WrapperNode [2024-11-03 14:00:50,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 14:00:50,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 14:00:50,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 14:00:50,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 14:00:50,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,770 INFO L138 Inliner]: procedures = 20, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2024-11-03 14:00:50,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 14:00:50,772 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 14:00:50,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 14:00:50,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 14:00:50,780 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,783 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,798 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 3, 3]. 38 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 3 writes are split as follows [0, 1, 2]. [2024-11-03 14:00:50,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 14:00:50,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 14:00:50,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 14:00:50,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 14:00:50,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ... [2024-11-03 14:00:50,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 14:00:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 14:00:50,857 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 14:00:50,859 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 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-03 14:00:50,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 14:00:50,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-03 14:00:50,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 14:00:50,971 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 14:00:50,972 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 14:00:56,208 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-03 14:00:56,208 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 14:00:56,223 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 14:00:56,223 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-03 14:00:56,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:56 BoogieIcfgContainer [2024-11-03 14:00:56,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 14:00:56,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 14:00:56,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 14:00:56,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 14:00:56,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:50" (1/3) ... [2024-11-03 14:00:56,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f375430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:56, skipping insertion in model container [2024-11-03 14:00:56,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (2/3) ... [2024-11-03 14:00:56,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f375430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:56, skipping insertion in model container [2024-11-03 14:00:56,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:56" (3/3) ... [2024-11-03 14:00:56,232 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2024-11-03 14:00:56,244 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 14:00:56,244 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 14:00:56,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 14:00:56,291 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;@44c836b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 14:00:56,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 14:00:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:00:56,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-03 14:00:56,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:00:56,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:00:56,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:00:56,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:00:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2024-11-03 14:00:56,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:00:56,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [695716273] [2024-11-03 14:00:56,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:00:56,317 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:00:56,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:00:56,320 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:00:56,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 14:00:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:00:56,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 14:00:56,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:00:56,385 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 14:00:56,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:00:56,388 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 14:00:56,388 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:00:56,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [695716273] [2024-11-03 14:00:56,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [695716273] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:00:56,389 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:00:56,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 14:00:56,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684030905] [2024-11-03 14:00:56,391 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:00:56,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 14:00:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:00:56,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 14:00:56,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 14:00:56,420 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:00:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:00:56,435 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2024-11-03 14:00:56,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 14:00:56,437 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-03 14:00:56,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:00:56,443 INFO L225 Difference]: With dead ends: 96 [2024-11-03 14:00:56,443 INFO L226 Difference]: Without dead ends: 46 [2024-11-03 14:00:56,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 14:00:56,451 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 14:00:56,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 14:00:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-03 14:00:56,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-03 14:00:56,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:00:56,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2024-11-03 14:00:56,490 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2024-11-03 14:00:56,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:00:56,491 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2024-11-03 14:00:56,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:00:56,491 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2024-11-03 14:00:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-03 14:00:56,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:00:56,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:00:56,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 14:00:56,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:00:56,694 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:00:56,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:00:56,694 INFO L85 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2024-11-03 14:00:56,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:00:56,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [370822591] [2024-11-03 14:00:56,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:00:56,695 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:00:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:00:56,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:00:56,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 14:00:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:00:56,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 14:00:56,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:00:57,412 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 14:00:57,413 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:03,335 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 14:01:07,375 WARN L851 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start___ieee754_sqrt_~x#1| |c_ULTIMATE.start___ieee754_sqrt_~x#1|) |c_ULTIMATE.start___ieee754_sqrt_~x#1|)) is different from false [2024-11-03 14:01:21,913 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 14:01:21,937 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 14:01:21,938 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:21,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [370822591] [2024-11-03 14:01:21,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [370822591] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:01:21,938 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:01:21,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 14:01:21,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986070325] [2024-11-03 14:01:21,938 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:01:21,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 14:01:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:21,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 14:01:21,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2024-11-03 14:01:21,941 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:27,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:27,847 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2024-11-03 14:01:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 14:01:27,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-03 14:01:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:27,849 INFO L225 Difference]: With dead ends: 51 [2024-11-03 14:01:27,849 INFO L226 Difference]: Without dead ends: 46 [2024-11-03 14:01:27,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=34, Invalid=101, Unknown=1, NotChecked=20, Total=156 [2024-11-03 14:01:27,850 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 117 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:27,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 338 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 64 Unchecked, 2.7s Time] [2024-11-03 14:01:27,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-03 14:01:27,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-03 14:01:27,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2024-11-03 14:01:27,857 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2024-11-03 14:01:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:27,858 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-03 14:01:27,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:27,859 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2024-11-03 14:01:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-03 14:01:27,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:27,861 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] [2024-11-03 14:01:27,863 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 14:01:28,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:28,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:28,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:28,062 INFO L85 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2024-11-03 14:01:28,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:28,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128984854] [2024-11-03 14:01:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:28,063 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:28,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:28,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:28,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 14:01:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:28,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 14:01:28,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:28,215 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 14:01:28,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:28,296 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 14:01:28,297 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:28,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128984854] [2024-11-03 14:01:28,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2128984854] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:01:28,297 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:01:28,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 14:01:28,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307338599] [2024-11-03 14:01:28,298 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:01:28,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 14:01:28,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:28,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 14:01:28,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 14:01:28,299 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:28,635 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2024-11-03 14:01:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 14:01:28,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-03 14:01:28,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:28,638 INFO L225 Difference]: With dead ends: 75 [2024-11-03 14:01:28,638 INFO L226 Difference]: Without dead ends: 50 [2024-11-03 14:01:28,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 14:01:28,640 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 14 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:28,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 147 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 14:01:28,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-03 14:01:28,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-03 14:01:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 49 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2024-11-03 14:01:28,652 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 25 [2024-11-03 14:01:28,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:28,652 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2024-11-03 14:01:28,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:28,653 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2024-11-03 14:01:28,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-03 14:01:28,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:28,654 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:01:28,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-03 14:01:28,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:28,858 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:28,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:28,859 INFO L85 PathProgramCache]: Analyzing trace with hash -449669017, now seen corresponding path program 1 times [2024-11-03 14:01:28,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:28,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086171486] [2024-11-03 14:01:28,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:28,859 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:28,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:28,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:28,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 14:01:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:28,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 14:01:28,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:29,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:29,697 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:29,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086171486] [2024-11-03 14:01:29,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1086171486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:01:29,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:01:29,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-03 14:01:29,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758354139] [2024-11-03 14:01:29,698 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:01:29,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 14:01:29,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 14:01:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-03 14:01:29,699 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:31,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:31,023 INFO L93 Difference]: Finished difference Result 87 states and 121 transitions. [2024-11-03 14:01:31,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 14:01:31,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-03 14:01:31,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:31,025 INFO L225 Difference]: With dead ends: 87 [2024-11-03 14:01:31,025 INFO L226 Difference]: Without dead ends: 62 [2024-11-03 14:01:31,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-03 14:01:31,027 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 19 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:31,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 300 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-03 14:01:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-03 14:01:31,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-03 14:01:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 83 transitions. [2024-11-03 14:01:31,038 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 83 transitions. Word has length 31 [2024-11-03 14:01:31,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:31,039 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 83 transitions. [2024-11-03 14:01:31,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:31,039 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 83 transitions. [2024-11-03 14:01:31,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-03 14:01:31,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:31,040 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 14:01:31,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 14:01:31,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:31,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:31,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:31,242 INFO L85 PathProgramCache]: Analyzing trace with hash 34100711, now seen corresponding path program 2 times [2024-11-03 14:01:31,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:31,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983166139] [2024-11-03 14:01:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:31,243 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:31,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:31,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 14:01:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:31,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 14:01:31,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:32,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:34,081 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:34,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983166139] [2024-11-03 14:01:34,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [983166139] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:01:34,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:01:34,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-03 14:01:34,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070532310] [2024-11-03 14:01:34,082 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:01:34,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 14:01:34,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:34,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 14:01:34,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-03 14:01:34,083 INFO L87 Difference]: Start difference. First operand 62 states and 83 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:36,475 INFO L93 Difference]: Finished difference Result 111 states and 157 transitions. [2024-11-03 14:01:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 14:01:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-03 14:01:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:36,477 INFO L225 Difference]: With dead ends: 111 [2024-11-03 14:01:36,477 INFO L226 Difference]: Without dead ends: 86 [2024-11-03 14:01:36,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-03 14:01:36,478 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 39 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:36,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 296 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-03 14:01:36,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-03 14:01:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-03 14:01:36,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.3529411764705883) internal successors, (115), 85 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 115 transitions. [2024-11-03 14:01:36,492 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 115 transitions. Word has length 43 [2024-11-03 14:01:36,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:36,492 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 115 transitions. [2024-11-03 14:01:36,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 115 transitions. [2024-11-03 14:01:36,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-03 14:01:36,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:36,500 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 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 14:01:36,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 14:01:36,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:36,701 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:36,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:36,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1937969383, now seen corresponding path program 3 times [2024-11-03 14:01:36,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:36,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652603150] [2024-11-03 14:01:36,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:36,702 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:36,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:36,704 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:36,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 14:01:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:36,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-03 14:01:36,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:40,490 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:40,491 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 14:01:45,470 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:45,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652603150] [2024-11-03 14:01:45,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [652603150] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:01:45,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:01:45,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2024-11-03 14:01:45,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919636326] [2024-11-03 14:01:45,471 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:01:45,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-03 14:01:45,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-03 14:01:45,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=629, Unknown=0, NotChecked=0, Total=992 [2024-11-03 14:01:45,473 INFO L87 Difference]: Start difference. First operand 86 states and 115 transitions. Second operand has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:52,454 INFO L93 Difference]: Finished difference Result 135 states and 189 transitions. [2024-11-03 14:01:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-03 14:01:52,455 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-03 14:01:52,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:52,455 INFO L225 Difference]: With dead ends: 135 [2024-11-03 14:01:52,455 INFO L226 Difference]: Without dead ends: 110 [2024-11-03 14:01:52,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=363, Invalid=629, Unknown=0, NotChecked=0, Total=992 [2024-11-03 14:01:52,457 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 69 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:52,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 478 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-03 14:01:52,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-03 14:01:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-03 14:01:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.348623853211009) internal successors, (147), 109 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 147 transitions. [2024-11-03 14:01:52,464 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 147 transitions. Word has length 67 [2024-11-03 14:01:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:52,464 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 147 transitions. [2024-11-03 14:01:52,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.46875) internal successors, (111), 32 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:52,465 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 147 transitions. [2024-11-03 14:01:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-03 14:01:52,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:52,465 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 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 14:01:52,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 14:01:52,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:52,666 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:52,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash -549663769, now seen corresponding path program 4 times [2024-11-03 14:01:52,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:52,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949168414] [2024-11-03 14:01:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:52,667 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:52,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:52,669 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:52,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 14:01:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:52,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 14:01:52,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:54,443 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:01:54,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:01:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:01:56,096 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:01:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949168414] [2024-11-03 14:01:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [949168414] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 14:01:56,096 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 14:01:56,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 14:01:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258752310] [2024-11-03 14:01:56,097 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 14:01:56,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 14:01:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:01:56,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 14:01:56,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 14:01:56,098 INFO L87 Difference]: Start difference. First operand 110 states and 147 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:01:56,699 INFO L93 Difference]: Finished difference Result 140 states and 187 transitions. [2024-11-03 14:01:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 14:01:56,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-03 14:01:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:01:56,703 INFO L225 Difference]: With dead ends: 140 [2024-11-03 14:01:56,703 INFO L226 Difference]: Without dead ends: 123 [2024-11-03 14:01:56,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-03 14:01:56,704 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 83 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 14:01:56,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 117 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 14:01:56,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-03 14:01:56,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 118. [2024-11-03 14:01:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.3504273504273505) internal successors, (158), 117 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2024-11-03 14:01:56,714 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 158 transitions. Word has length 91 [2024-11-03 14:01:56,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:01:56,715 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 158 transitions. [2024-11-03 14:01:56,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:01:56,715 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 158 transitions. [2024-11-03 14:01:56,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-03 14:01:56,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:01:56,716 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 14:01:56,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-03 14:01:56,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:56,917 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:01:56,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:01:56,918 INFO L85 PathProgramCache]: Analyzing trace with hash -345824345, now seen corresponding path program 1 times [2024-11-03 14:01:56,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:01:56,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659803796] [2024-11-03 14:01:56,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:01:56,918 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:01:56,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:01:56,919 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:01:56,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 14:01:57,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:01:57,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 14:01:57,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:01:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:01:58,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:02:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:02:00,938 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:02:00,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659803796] [2024-11-03 14:02:00,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [659803796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:02:00,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:02:00,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 14:02:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824123247] [2024-11-03 14:02:00,938 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:02:00,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 14:02:00,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:02:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 14:02:00,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-03 14:02:00,941 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:02:05,058 INFO L93 Difference]: Finished difference Result 168 states and 229 transitions. [2024-11-03 14:02:05,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 14:02:05,060 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2024-11-03 14:02:05,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:02:05,061 INFO L225 Difference]: With dead ends: 168 [2024-11-03 14:02:05,061 INFO L226 Difference]: Without dead ends: 151 [2024-11-03 14:02:05,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-03 14:02:05,061 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 202 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-03 14:02:05,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 200 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-03 14:02:05,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-03 14:02:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 146. [2024-11-03 14:02:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.3655172413793104) internal successors, (198), 145 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 198 transitions. [2024-11-03 14:02:05,086 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 198 transitions. Word has length 97 [2024-11-03 14:02:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:02:05,087 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 198 transitions. [2024-11-03 14:02:05,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:05,087 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 198 transitions. [2024-11-03 14:02:05,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-03 14:02:05,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:02:05,088 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 6, 6, 6, 1, 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 14:02:05,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Ended with exit code 0 [2024-11-03 14:02:05,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:05,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:02:05,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:02:05,290 INFO L85 PathProgramCache]: Analyzing trace with hash 444162855, now seen corresponding path program 2 times [2024-11-03 14:02:05,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:02:05,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71734805] [2024-11-03 14:02:05,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:02:05,291 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:02:05,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:05,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:02:05,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-03 14:02:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:02:05,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 14:02:05,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:02:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:02:07,967 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:02:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:02:10,929 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:02:10,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71734805] [2024-11-03 14:02:10,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [71734805] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:02:10,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:02:10,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-03 14:02:10,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326205895] [2024-11-03 14:02:10,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:02:10,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 14:02:10,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:02:10,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 14:02:10,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2024-11-03 14:02:10,931 INFO L87 Difference]: Start difference. First operand 146 states and 198 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:16,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 14:02:16,731 INFO L93 Difference]: Finished difference Result 224 states and 313 transitions. [2024-11-03 14:02:16,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 14:02:16,732 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2024-11-03 14:02:16,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 14:02:16,733 INFO L225 Difference]: With dead ends: 224 [2024-11-03 14:02:16,733 INFO L226 Difference]: Without dead ends: 207 [2024-11-03 14:02:16,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=314, Invalid=678, Unknown=0, NotChecked=0, Total=992 [2024-11-03 14:02:16,734 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 412 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-03 14:02:16,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 513 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-03 14:02:16,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-03 14:02:16,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 202. [2024-11-03 14:02:16,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 1.3830845771144278) internal successors, (278), 201 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 278 transitions. [2024-11-03 14:02:16,758 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 278 transitions. Word has length 109 [2024-11-03 14:02:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 14:02:16,758 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 278 transitions. [2024-11-03 14:02:16,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 14:02:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 278 transitions. [2024-11-03 14:02:16,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-03 14:02:16,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 14:02:16,764 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 22, 14, 14, 14, 1, 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 14:02:16,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Ended with exit code 0 [2024-11-03 14:02:16,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:16,965 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 14:02:16,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 14:02:16,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1596186073, now seen corresponding path program 3 times [2024-11-03 14:02:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 14:02:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1909381176] [2024-11-03 14:02:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 14:02:16,966 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 14:02:16,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 14:02:16,968 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 14:02:16,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-03 14:02:17,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 14:02:17,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-03 14:02:17,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 14:02:21,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:02:21,589 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 14:02:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2024-11-03 14:02:28,063 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 14:02:28,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1909381176] [2024-11-03 14:02:28,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1909381176] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 14:02:28,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 14:02:28,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2024-11-03 14:02:28,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997522043] [2024-11-03 14:02:28,063 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 14:02:28,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-03 14:02:28,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 14:02:28,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-03 14:02:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2024-11-03 14:02:28,065 INFO L87 Difference]: Start difference. First operand 202 states and 278 transitions. Second operand has 34 states, 34 states have (on average 3.764705882352941) internal successors, (128), 34 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)