/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_amount10_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:45:11,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:45:12,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 12:45:12,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:45:12,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:45:12,070 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:45:12,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:45:12,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:45:12,071 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:45:12,073 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:45:12,073 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:45:12,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:45:12,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:45:12,074 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:45:12,074 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:45:12,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:45:12,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:45:12,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:45:12,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:45:12,075 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:45:12,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:45:12,076 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:45:12,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:45:12,076 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:45:12,077 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:45:12,077 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:45:12,078 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:45:12,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:45:12,079 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:45:12,079 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:45:12,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:45:12,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:45:12,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:45:12,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:45:12,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:45:12,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:45:12,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:45:12,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:45:12,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:45:12,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:45:12,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-90.i [2024-11-03 12:45:13,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:45:13,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:45:13,652 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-90.i [2024-11-03 12:45:13,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aadc89901/c4f23ffa3f054d69974ae905e644f18b/FLAG62ca8ac9a [2024-11-03 12:45:13,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aadc89901/c4f23ffa3f054d69974ae905e644f18b [2024-11-03 12:45:13,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:45:13,681 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:45:13,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:45:13,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:45:13,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:45:13,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,687 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a608883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13, skipping insertion in model container [2024-11-03 12:45:13,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:45:13,833 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_amount10_file-90.i[915,928] [2024-11-03 12:45:13,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:45:13,866 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:45:13,874 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_amount10_file-90.i[915,928] [2024-11-03 12:45:13,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:45:13,900 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:45:13,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13 WrapperNode [2024-11-03 12:45:13,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:45:13,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:45:13,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:45:13,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:45:13,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,929 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2024-11-03 12:45:13,929 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:45:13,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:45:13,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:45:13,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:45:13,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,940 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,947 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 12:45:13,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:45:13,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:45:13,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:45:13,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:45:13,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (1/1) ... [2024-11-03 12:45:13,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:45:13,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:45:13,988 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 12:45:13,990 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 12:45:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:45:14,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:45:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:45:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:45:14,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:45:14,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:45:14,066 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:45:14,068 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:45:14,265 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 12:45:14,266 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:45:14,279 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:45:14,279 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:45:14,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:45:14 BoogieIcfgContainer [2024-11-03 12:45:14,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:45:14,281 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:45:14,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:45:14,283 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:45:14,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:45:13" (1/3) ... [2024-11-03 12:45:14,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3287b1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:45:14, skipping insertion in model container [2024-11-03 12:45:14,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:45:13" (2/3) ... [2024-11-03 12:45:14,284 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3287b1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:45:14, skipping insertion in model container [2024-11-03 12:45:14,284 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:45:14" (3/3) ... [2024-11-03 12:45:14,285 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-90.i [2024-11-03 12:45:14,296 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:45:14,296 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:45:14,333 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:45:14,337 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;@43494735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:45:14,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:45:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 12:45:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-03 12:45:14,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:14,345 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 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 12:45:14,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:14,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash -150909191, now seen corresponding path program 1 times [2024-11-03 12:45:14,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:14,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802849972] [2024-11-03 12:45:14,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:14,356 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:14,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:14,358 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 12:45:14,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:45:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:14,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:45:14,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:14,459 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-03 12:45:14,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:45:14,507 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-03 12:45:14,508 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:14,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802849972] [2024-11-03 12:45:14,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [802849972] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:14,508 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:14,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:45:14,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740315731] [2024-11-03 12:45:14,510 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:14,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:45:14,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:45:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:45:14,534 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 23 states have internal predecessors, (29), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:14,550 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2024-11-03 12:45:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:45:14,552 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 54 [2024-11-03 12:45:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:14,557 INFO L225 Difference]: With dead ends: 59 [2024-11-03 12:45:14,557 INFO L226 Difference]: Without dead ends: 29 [2024-11-03 12:45:14,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 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 12:45:14,562 INFO L432 NwaCegarLoop]: 38 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, 38 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 12:45:14,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:45:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-03 12:45:14,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-03 12:45:14,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-03 12:45:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2024-11-03 12:45:14,593 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 54 [2024-11-03 12:45:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:14,595 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2024-11-03 12:45:14,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-03 12:45:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-03 12:45:14,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:14,597 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 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 12:45:14,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:45:14,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:14,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:14,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash -956776711, now seen corresponding path program 1 times [2024-11-03 12:45:14,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:14,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117762051] [2024-11-03 12:45:14,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:14,800 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:14,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:14,801 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 12:45:14,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:45:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:14,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 12:45:14,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:15,499 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 12:45:15,499 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:45:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 12:45:16,079 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:16,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117762051] [2024-11-03 12:45:16,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1117762051] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:16,080 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:16,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 12 [2024-11-03 12:45:16,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133983638] [2024-11-03 12:45:16,080 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:16,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 12:45:16,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:16,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 12:45:16,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:45:16,084 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-03 12:45:16,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:16,721 INFO L93 Difference]: Finished difference Result 115 states and 143 transitions. [2024-11-03 12:45:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 12:45:16,722 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 54 [2024-11-03 12:45:16,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:16,725 INFO L225 Difference]: With dead ends: 115 [2024-11-03 12:45:16,725 INFO L226 Difference]: Without dead ends: 113 [2024-11-03 12:45:16,726 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2024-11-03 12:45:16,727 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 69 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 12:45:16,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 330 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 12:45:16,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-03 12:45:16,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 55. [2024-11-03 12:45:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-03 12:45:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 73 transitions. [2024-11-03 12:45:16,751 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 73 transitions. Word has length 54 [2024-11-03 12:45:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:16,751 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 73 transitions. [2024-11-03 12:45:16,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-03 12:45:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2024-11-03 12:45:16,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-03 12:45:16,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:16,754 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 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 12:45:16,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:45:16,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:16,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:16,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash 458194769, now seen corresponding path program 1 times [2024-11-03 12:45:16,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:16,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113058151] [2024-11-03 12:45:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:16,959 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:16,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:16,961 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 12:45:16,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:45:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:16,993 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:45:16,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 12:45:17,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:45:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-03 12:45:17,185 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:17,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113058151] [2024-11-03 12:45:17,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2113058151] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:17,185 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:17,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 12:45:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234269985] [2024-11-03 12:45:17,185 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:17,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:45:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:45:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:45:17,187 INFO L87 Difference]: Start difference. First operand 55 states and 73 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-03 12:45:17,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:17,413 INFO L93 Difference]: Finished difference Result 135 states and 178 transitions. [2024-11-03 12:45:17,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 12:45:17,415 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 55 [2024-11-03 12:45:17,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:17,416 INFO L225 Difference]: With dead ends: 135 [2024-11-03 12:45:17,417 INFO L226 Difference]: Without dead ends: 83 [2024-11-03 12:45:17,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:45:17,418 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 40 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:45:17,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 229 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 12:45:17,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-03 12:45:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 55. [2024-11-03 12:45:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-03 12:45:17,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2024-11-03 12:45:17,430 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 55 [2024-11-03 12:45:17,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:17,430 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2024-11-03 12:45:17,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-03 12:45:17,431 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2024-11-03 12:45:17,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-03 12:45:17,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:17,432 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:45:17,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:45:17,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:17,635 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:17,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:17,636 INFO L85 PathProgramCache]: Analyzing trace with hash 21912416, now seen corresponding path program 1 times [2024-11-03 12:45:17,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:17,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863318958] [2024-11-03 12:45:17,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:17,636 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:17,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:17,638 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 12:45:17,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:45:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:17,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 12:45:17,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:18,013 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-03 12:45:18,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:45:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-03 12:45:18,479 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:18,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863318958] [2024-11-03 12:45:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1863318958] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:18,479 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2024-11-03 12:45:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293843222] [2024-11-03 12:45:18,479 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:18,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 12:45:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 12:45:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:45:18,481 INFO L87 Difference]: Start difference. First operand 55 states and 72 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:18,715 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2024-11-03 12:45:18,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-03 12:45:18,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 105 [2024-11-03 12:45:18,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:18,717 INFO L225 Difference]: With dead ends: 63 [2024-11-03 12:45:18,717 INFO L226 Difference]: Without dead ends: 61 [2024-11-03 12:45:18,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:45:18,718 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:45:18,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 210 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 12:45:18,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-03 12:45:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-11-03 12:45:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-03 12:45:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2024-11-03 12:45:18,726 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 105 [2024-11-03 12:45:18,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:18,726 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2024-11-03 12:45:18,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:18,726 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2024-11-03 12:45:18,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-03 12:45:18,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:18,728 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:45:18,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 12:45:18,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:18,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:18,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash 732786634, now seen corresponding path program 1 times [2024-11-03 12:45:18,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:18,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161013964] [2024-11-03 12:45:18,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:18,933 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:18,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:18,934 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 12:45:18,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:45:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:18,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-03 12:45:18,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:19,383 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-03 12:45:19,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:45:20,922 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2024-11-03 12:45:20,922 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:20,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161013964] [2024-11-03 12:45:20,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [161013964] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:20,922 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:20,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2024-11-03 12:45:20,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144813508] [2024-11-03 12:45:20,922 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:20,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 12:45:20,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:20,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 12:45:20,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:45:20,924 INFO L87 Difference]: Start difference. First operand 55 states and 72 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:21,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:21,948 INFO L93 Difference]: Finished difference Result 58 states and 75 transitions. [2024-11-03 12:45:21,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 12:45:21,949 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 106 [2024-11-03 12:45:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:21,950 INFO L225 Difference]: With dead ends: 58 [2024-11-03 12:45:21,950 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:45:21,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-03 12:45:21,951 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:45:21,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 136 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 12:45:21,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:45:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:45:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 12:45:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:45:21,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 106 [2024-11-03 12:45:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:21,952 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:45:21,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-03 12:45:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:45:21,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:45:21,954 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:45:21,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 12:45:22,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:22,158 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-03 12:45:22,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:45:22,213 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:45:22,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:45:22 BoogieIcfgContainer [2024-11-03 12:45:22,230 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:45:22,230 INFO L158 Benchmark]: Toolchain (without parser) took 8549.63ms. Allocated memory was 226.5MB in the beginning and 399.5MB in the end (delta: 173.0MB). Free memory was 166.1MB in the beginning and 244.1MB in the end (delta: -78.0MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,231 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 226.5MB. Free memory was 175.8MB in the beginning and 175.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:45:22,231 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.89ms. Allocated memory is still 226.5MB. Free memory was 165.8MB in the beginning and 152.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.62ms. Allocated memory is still 226.5MB. Free memory was 152.1MB in the beginning and 150.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,231 INFO L158 Benchmark]: Boogie Preprocessor took 27.75ms. Allocated memory is still 226.5MB. Free memory was 150.7MB in the beginning and 148.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,232 INFO L158 Benchmark]: RCFGBuilder took 321.27ms. Allocated memory was 226.5MB in the beginning and 399.5MB in the end (delta: 173.0MB). Free memory was 148.4MB in the beginning and 363.7MB in the end (delta: -215.3MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,232 INFO L158 Benchmark]: TraceAbstraction took 7948.96ms. Allocated memory is still 399.5MB. Free memory was 363.2MB in the beginning and 244.1MB in the end (delta: 119.1MB). Peak memory consumption was 119.1MB. Max. memory is 8.0GB. [2024-11-03 12:45:22,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 226.5MB. Free memory was 175.8MB in the beginning and 175.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.89ms. Allocated memory is still 226.5MB. Free memory was 165.8MB in the beginning and 152.4MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.62ms. Allocated memory is still 226.5MB. Free memory was 152.1MB in the beginning and 150.7MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.75ms. Allocated memory is still 226.5MB. Free memory was 150.7MB in the beginning and 148.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 321.27ms. Allocated memory was 226.5MB in the beginning and 399.5MB in the end (delta: 173.0MB). Free memory was 148.4MB in the beginning and 363.7MB in the end (delta: -215.3MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. * TraceAbstraction took 7948.96ms. Allocated memory is still 399.5MB. Free memory was 363.2MB in the beginning and 244.1MB in the end (delta: 119.1MB). Peak memory consumption was 119.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 943 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 762 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 181 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 760 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=2, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 92 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 374 NumberOfCodeBlocks, 374 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 738 ConstructedInterpolants, 3 QuantifiedInterpolants, 1789 SizeOfPredicates, 40 NumberOfNonLiveVariables, 609 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2664/2664 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (last_1_var_1_1 == \old(last_1_var_1_1))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:45:22,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...