/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/hardness-nfm22/hardness_operatoramount_amount250_file-75.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:54:55,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:54:55,426 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 12:54:55,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:54:55,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:54:55,452 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:54:55,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:54:55,453 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:54:55,454 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:54:55,454 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:54:55,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:54:55,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:54:55,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:54:55,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:54:55,456 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:54:55,456 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:54:55,456 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:54:55,456 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:54:55,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:54:55,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:54:55,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:54:55,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:54:55,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:54:55,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:54:55,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:54:55,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:54:55,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:54:55,463 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:54:55,463 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:54:55,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:54:55,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:54:55,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:54:55,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:54:55,464 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:54:55,464 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:54:55,464 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:54:55,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:54:55,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:54:55,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:54:55,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:54:55,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:54:55,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:54:55,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:54:55,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:54:55,658 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:54:55,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-75.i [2024-11-03 12:54:56,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:54:57,031 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:54:57,031 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-75.i [2024-11-03 12:54:57,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba2a2aee1/ec78df4e3d3d4b33b73a441699b33206/FLAG48e750338 [2024-11-03 12:54:57,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba2a2aee1/ec78df4e3d3d4b33b73a441699b33206 [2024-11-03 12:54:57,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:54:57,411 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:54:57,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:54:57,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:54:57,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:54:57,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e67361a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57, skipping insertion in model container [2024-11-03 12:54:57,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:54:57,576 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-75.i[916,929] [2024-11-03 12:54:57,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:54:57,687 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:54:57,695 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-75.i[916,929] [2024-11-03 12:54:57,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:54:57,769 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:54:57,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57 WrapperNode [2024-11-03 12:54:57,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:54:57,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:54:57,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:54:57,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:54:57,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,827 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 328 [2024-11-03 12:54:57,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:54:57,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:54:57,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:54:57,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:54:57,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,873 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 12:54:57,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:54:57,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:54:57,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:54:57,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:54:57,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (1/1) ... [2024-11-03 12:54:57,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:54:57,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:54:57,952 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 12:54:57,954 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 12:54:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:54:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:54:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:54:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:54:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:54:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:54:58,093 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:54:58,094 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:55:06,304 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-03 12:55:06,304 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:55:06,318 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:55:06,318 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:55:06,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:06 BoogieIcfgContainer [2024-11-03 12:55:06,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:55:06,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:55:06,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:55:06,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:55:06,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:54:57" (1/3) ... [2024-11-03 12:55:06,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f503102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:06, skipping insertion in model container [2024-11-03 12:55:06,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:54:57" (2/3) ... [2024-11-03 12:55:06,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f503102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:55:06, skipping insertion in model container [2024-11-03 12:55:06,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:55:06" (3/3) ... [2024-11-03 12:55:06,328 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-75.i [2024-11-03 12:55:06,339 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:55:06,340 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:55:06,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:55:06,399 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;@27eae332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:55:06,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:55:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 90 states have (on average 1.511111111111111) internal successors, (136), 91 states have internal predecessors, (136), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-03 12:55:06,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-03 12:55:06,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:06,421 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:06,421 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:06,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:06,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2036703170, now seen corresponding path program 1 times [2024-11-03 12:55:06,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:06,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857454078] [2024-11-03 12:55:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:06,436 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:06,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:06,438 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 12:55:06,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:55:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:06,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:55:06,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2024-11-03 12:55:06,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2024-11-03 12:55:07,952 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:07,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857454078] [2024-11-03 12:55:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1857454078] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:07,955 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:07,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:55:07,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814827435] [2024-11-03 12:55:07,957 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:07,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:55:07,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:07,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:55:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:55:07,980 INFO L87 Difference]: Start difference. First operand has 133 states, 90 states have (on average 1.511111111111111) internal successors, (136), 91 states have internal predecessors, (136), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:55:08,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:08,006 INFO L93 Difference]: Finished difference Result 259 states and 466 transitions. [2024-11-03 12:55:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:55:08,008 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) Word has length 262 [2024-11-03 12:55:08,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:08,013 INFO L225 Difference]: With dead ends: 259 [2024-11-03 12:55:08,014 INFO L226 Difference]: Without dead ends: 129 [2024-11-03 12:55:08,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 522 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 12:55:08,019 INFO L432 NwaCegarLoop]: 208 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, 208 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 12:55:08,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:55:08,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-03 12:55:08,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-03 12:55:08,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 87 states have (on average 1.471264367816092) internal successors, (128), 87 states have internal predecessors, (128), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-03 12:55:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 208 transitions. [2024-11-03 12:55:08,072 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 208 transitions. Word has length 262 [2024-11-03 12:55:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:08,072 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 208 transitions. [2024-11-03 12:55:08,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:55:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 208 transitions. [2024-11-03 12:55:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-03 12:55:08,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:08,075 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:08,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:55:08,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:08,277 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:08,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:08,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1829425214, now seen corresponding path program 1 times [2024-11-03 12:55:08,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:08,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516344075] [2024-11-03 12:55:08,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:08,278 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:08,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:08,279 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 12:55:08,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:55:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:08,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:55:08,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:10,288 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1489 proven. 42 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2024-11-03 12:55:10,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:12,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 75 proven. 42 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2024-11-03 12:55:12,649 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:12,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516344075] [2024-11-03 12:55:12,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [516344075] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:55:12,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:55:12,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 12:55:12,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777874008] [2024-11-03 12:55:12,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:55:12,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 12:55:12,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:12,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 12:55:12,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 12:55:12,652 INFO L87 Difference]: Start difference. First operand 129 states and 208 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-03 12:55:18,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:22,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:26,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:28,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:55:28,011 INFO L93 Difference]: Finished difference Result 307 states and 489 transitions. [2024-11-03 12:55:28,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 12:55:28,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 262 [2024-11-03 12:55:28,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:55:28,018 INFO L225 Difference]: With dead ends: 307 [2024-11-03 12:55:28,018 INFO L226 Difference]: Without dead ends: 181 [2024-11-03 12:55:28,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-03 12:55:28,023 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 201 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 55 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:55:28,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 463 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 301 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2024-11-03 12:55:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-03 12:55:28,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 176. [2024-11-03 12:55:28,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 108 states have (on average 1.3703703703703705) internal successors, (148), 109 states have internal predecessors, (148), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-03 12:55:28,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 278 transitions. [2024-11-03 12:55:28,051 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 278 transitions. Word has length 262 [2024-11-03 12:55:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:55:28,052 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 278 transitions. [2024-11-03 12:55:28,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (54), 2 states have call predecessors, (54), 4 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2024-11-03 12:55:28,052 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 278 transitions. [2024-11-03 12:55:28,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-03 12:55:28,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:55:28,057 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:28,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:55:28,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:28,260 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:55:28,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:55:28,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1833456119, now seen corresponding path program 1 times [2024-11-03 12:55:28,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:55:28,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1316709331] [2024-11-03 12:55:28,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:55:28,261 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:55:28,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:55:28,264 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 12:55:28,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:55:28,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:55:28,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 12:55:28,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:55:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-03 12:55:37,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:55:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-03 12:55:41,437 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:55:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1316709331] [2024-11-03 12:55:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1316709331] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:55:41,438 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:55:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2024-11-03 12:55:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196259099] [2024-11-03 12:55:41,438 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:55:41,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 12:55:41,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:55:41,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 12:55:41,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:55:41,440 INFO L87 Difference]: Start difference. First operand 176 states and 278 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-03 12:55:49,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:53,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:55:57,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:01,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:05,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:09,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:13,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:17,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:21,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:25,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:29,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:33,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:37,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:56:41,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []