/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_amount25_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 13:02:26,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 13:02:26,290 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 13:02:26,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 13:02:26,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 13:02:26,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 13:02:26,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 13:02:26,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 13:02:26,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 13:02:26,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 13:02:26,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 13:02:26,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 13:02:26,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 13:02:26,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 13:02:26,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 13:02:26,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 13:02:26,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 13:02:26,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 13:02:26,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 13:02:26,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 13:02:26,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 13:02:26,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 13:02:26,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 13:02:26,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 13:02:26,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 13:02:26,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 13:02:26,311 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 13:02:26,312 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 13:02:26,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 13:02:26,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 13:02:26,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 13:02:26,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 13:02:26,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 13:02:26,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 13:02:26,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:02:26,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 13:02:26,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 13:02:26,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 13:02:26,316 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 13:02:26,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 13:02:26,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 13:02:26,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 13:02:26,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 13:02:26,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 13:02:26,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 13:02:26,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 13:02:26,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 13:02:26,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 13:02:26,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 13:02:26,500 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 13:02:26,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-39.i [2024-11-03 13:02:27,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 13:02:27,811 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 13:02:27,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-39.i [2024-11-03 13:02:27,822 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6fb63c6f/77366de85e7247508401081378d8a6ce/FLAGdb771ccd7 [2024-11-03 13:02:28,224 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6fb63c6f/77366de85e7247508401081378d8a6ce [2024-11-03 13:02:28,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 13:02:28,230 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 13:02:28,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 13:02:28,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 13:02:28,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 13:02:28,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@881d4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28, skipping insertion in model container [2024-11-03 13:02:28,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,254 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 13:02:28,357 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_amount25_file-39.i[915,928] [2024-11-03 13:02:28,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:02:28,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 13:02:28,401 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_amount25_file-39.i[915,928] [2024-11-03 13:02:28,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 13:02:28,426 INFO L204 MainTranslator]: Completed translation [2024-11-03 13:02:28,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28 WrapperNode [2024-11-03 13:02:28,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 13:02:28,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 13:02:28,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 13:02:28,428 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 13:02:28,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,461 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-03 13:02:28,462 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 13:02:28,462 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 13:02:28,462 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 13:02:28,462 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 13:02:28,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,479 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 13:02:28,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 13:02:28,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 13:02:28,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 13:02:28,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 13:02:28,491 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (1/1) ... [2024-11-03 13:02:28,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 13:02:28,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 13:02:28,514 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 13:02:28,515 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 13:02:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 13:02:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 13:02:28,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 13:02:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 13:02:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 13:02:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 13:02:28,608 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 13:02:28,611 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 13:02:28,888 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 13:02:28,888 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 13:02:28,901 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 13:02:28,901 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 13:02:28,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:02:28 BoogieIcfgContainer [2024-11-03 13:02:28,901 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 13:02:28,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 13:02:28,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 13:02:28,907 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 13:02:28,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:02:28" (1/3) ... [2024-11-03 13:02:28,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c5f791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:02:28, skipping insertion in model container [2024-11-03 13:02:28,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:02:28" (2/3) ... [2024-11-03 13:02:28,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c5f791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:02:28, skipping insertion in model container [2024-11-03 13:02:28,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:02:28" (3/3) ... [2024-11-03 13:02:28,911 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-39.i [2024-11-03 13:02:28,923 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 13:02:28,923 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 13:02:28,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 13:02:28,977 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;@46cfef5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 13:02:28,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 13:02:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-03 13:02:28,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-03 13:02:28,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:02:28,987 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:28,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:02:28,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:02:28,992 INFO L85 PathProgramCache]: Analyzing trace with hash 705531536, now seen corresponding path program 1 times [2024-11-03 13:02:28,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:02:28,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499449429] [2024-11-03 13:02:28,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:02:29,000 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:02:29,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:29,001 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 13:02:29,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 13:02:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:02:29,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:02:29,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:02:29,344 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:29,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:02:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:29,540 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:02:29,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499449429] [2024-11-03 13:02:29,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1499449429] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:02:29,540 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:02:29,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 13:02:29,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443622210] [2024-11-03 13:02:29,542 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:02:29,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 13:02:29,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:02:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 13:02:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 13:02:29,563 INFO L87 Difference]: Start difference. First operand has 47 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 32 states have internal predecessors, (41), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:29,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:02:29,978 INFO L93 Difference]: Finished difference Result 195 states and 345 transitions. [2024-11-03 13:02:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 13:02:29,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 87 [2024-11-03 13:02:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:02:29,987 INFO L225 Difference]: With dead ends: 195 [2024-11-03 13:02:29,987 INFO L226 Difference]: Without dead ends: 151 [2024-11-03 13:02:29,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-03 13:02:29,991 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 151 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-03 13:02:29,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 302 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-03 13:02:30,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-03 13:02:30,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 81. [2024-11-03 13:02:30,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 52 states have internal predecessors, (63), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-03 13:02:30,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 115 transitions. [2024-11-03 13:02:30,043 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 115 transitions. Word has length 87 [2024-11-03 13:02:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:02:30,043 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 115 transitions. [2024-11-03 13:02:30,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:30,044 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2024-11-03 13:02:30,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 13:02:30,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:02:30,046 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:30,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 13:02:30,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:30,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:02:30,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:02:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1626825182, now seen corresponding path program 1 times [2024-11-03 13:02:30,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:02:30,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [632000024] [2024-11-03 13:02:30,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:02:30,254 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:02:30,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:30,255 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 13:02:30,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 13:02:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:02:30,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-03 13:02:30,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:02:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:32,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:02:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:35,679 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:02:35,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [632000024] [2024-11-03 13:02:35,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [632000024] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:02:35,682 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:02:35,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 16 [2024-11-03 13:02:35,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620007604] [2024-11-03 13:02:35,682 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:02:35,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-03 13:02:35,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:02:35,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-03 13:02:35,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-11-03 13:02:35,684 INFO L87 Difference]: Start difference. First operand 81 states and 115 transitions. Second operand has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:38,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:02:38,144 INFO L93 Difference]: Finished difference Result 279 states and 389 transitions. [2024-11-03 13:02:38,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 13:02:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2024-11-03 13:02:38,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:02:38,147 INFO L225 Difference]: With dead ends: 279 [2024-11-03 13:02:38,147 INFO L226 Difference]: Without dead ends: 201 [2024-11-03 13:02:38,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2024-11-03 13:02:38,151 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 148 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-03 13:02:38,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 604 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-03 13:02:38,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-03 13:02:38,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 163. [2024-11-03 13:02:38,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 106 states have (on average 1.1981132075471699) internal successors, (127), 106 states have internal predecessors, (127), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-03 13:02:38,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 231 transitions. [2024-11-03 13:02:38,183 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 231 transitions. Word has length 88 [2024-11-03 13:02:38,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:02:38,184 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 231 transitions. [2024-11-03 13:02:38,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.1875) internal successors, (51), 16 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:38,185 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 231 transitions. [2024-11-03 13:02:38,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-03 13:02:38,187 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:02:38,187 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:38,190 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 13:02:38,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:38,387 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:02:38,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:02:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1628672224, now seen corresponding path program 1 times [2024-11-03 13:02:38,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:02:38,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256791226] [2024-11-03 13:02:38,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:02:38,389 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:02:38,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:38,392 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 13:02:38,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 13:02:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:02:38,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 13:02:38,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:02:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:39,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:02:42,652 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-03 13:02:42,652 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:02:42,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256791226] [2024-11-03 13:02:42,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1256791226] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 13:02:42,653 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 13:02:42,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 10] imperfect sequences [] total 18 [2024-11-03 13:02:42,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698450747] [2024-11-03 13:02:42,653 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 13:02:42,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-03 13:02:42,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:02:42,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-03 13:02:42,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2024-11-03 13:02:42,655 INFO L87 Difference]: Start difference. First operand 163 states and 231 transitions. Second operand has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:46,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:02:46,606 INFO L93 Difference]: Finished difference Result 196 states and 269 transitions. [2024-11-03 13:02:46,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 13:02:46,606 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2024-11-03 13:02:46,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:02:46,608 INFO L225 Difference]: With dead ends: 196 [2024-11-03 13:02:46,608 INFO L226 Difference]: Without dead ends: 194 [2024-11-03 13:02:46,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=254, Invalid=738, Unknown=0, NotChecked=0, Total=992 [2024-11-03 13:02:46,609 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 119 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:02:46,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 611 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-03 13:02:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-03 13:02:46,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 167. [2024-11-03 13:02:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.18348623853211) internal successors, (129), 109 states have internal predecessors, (129), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-03 13:02:46,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2024-11-03 13:02:46,635 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 88 [2024-11-03 13:02:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:02:46,635 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2024-11-03 13:02:46,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 18 states have internal predecessors, (51), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-03 13:02:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2024-11-03 13:02:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-03 13:02:46,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:02:46,638 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1] [2024-11-03 13:02:46,641 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 13:02:46,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:46,840 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:02:46,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:02:46,841 INFO L85 PathProgramCache]: Analyzing trace with hash -755537303, now seen corresponding path program 1 times [2024-11-03 13:02:46,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:02:46,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830562807] [2024-11-03 13:02:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:02:46,841 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:02:46,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:46,843 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 13:02:46,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 13:02:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:02:46,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-03 13:02:46,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:02:49,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-03 13:02:49,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:02:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2024-11-03 13:02:51,175 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:02:51,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [830562807] [2024-11-03 13:02:51,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [830562807] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:02:51,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:02:51,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2024-11-03 13:02:51,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91115098] [2024-11-03 13:02:51,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:02:51,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 13:02:51,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:02:51,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 13:02:51,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-11-03 13:02:51,176 INFO L87 Difference]: Start difference. First operand 167 states and 233 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 13:02:51,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:02:51,779 INFO L93 Difference]: Finished difference Result 209 states and 280 transitions. [2024-11-03 13:02:51,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 13:02:51,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 173 [2024-11-03 13:02:51,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:02:51,782 INFO L225 Difference]: With dead ends: 209 [2024-11-03 13:02:51,782 INFO L226 Difference]: Without dead ends: 207 [2024-11-03 13:02:51,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2024-11-03 13:02:51,783 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 45 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 13:02:51,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 200 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 4 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 13:02:51,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-03 13:02:51,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 172. [2024-11-03 13:02:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 114 states have (on average 1.2017543859649122) internal successors, (137), 114 states have internal predecessors, (137), 52 states have call successors, (52), 5 states have call predecessors, (52), 5 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-03 13:02:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 241 transitions. [2024-11-03 13:02:51,810 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 241 transitions. Word has length 173 [2024-11-03 13:02:51,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:02:51,811 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 241 transitions. [2024-11-03 13:02:51,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 13:02:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 241 transitions. [2024-11-03 13:02:51,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-03 13:02:51,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:02:51,812 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1, 1, 1, 1] [2024-11-03 13:02:51,823 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 13:02:52,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:52,013 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:02:52,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:02:52,014 INFO L85 PathProgramCache]: Analyzing trace with hash -753690261, now seen corresponding path program 1 times [2024-11-03 13:02:52,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:02:52,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729334515] [2024-11-03 13:02:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:02:52,014 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:02:52,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:02:52,015 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 13:02:52,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 13:02:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:02:52,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-03 13:02:52,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:02:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 286 proven. 731 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-03 13:02:53,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:02:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 177 proven. 70 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2024-11-03 13:02:56,830 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:02:56,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [729334515] [2024-11-03 13:02:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [729334515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:02:56,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:02:56,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 39 [2024-11-03 13:02:56,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289179249] [2024-11-03 13:02:56,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:02:56,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-03 13:02:56,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:02:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-03 13:02:56,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=1191, Unknown=0, NotChecked=0, Total=1482 [2024-11-03 13:02:56,832 INFO L87 Difference]: Start difference. First operand 172 states and 241 transitions. Second operand has 39 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 36 states have internal predecessors, (121), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) [2024-11-03 13:03:01,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:03:01,345 INFO L93 Difference]: Finished difference Result 414 states and 549 transitions. [2024-11-03 13:03:01,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-03 13:03:01,346 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 36 states have internal predecessors, (121), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) Word has length 173 [2024-11-03 13:03:01,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:03:01,348 INFO L225 Difference]: With dead ends: 414 [2024-11-03 13:03:01,348 INFO L226 Difference]: Without dead ends: 315 [2024-11-03 13:03:01,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 311 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1762 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1223, Invalid=4477, Unknown=0, NotChecked=0, Total=5700 [2024-11-03 13:03:01,350 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 493 mSDsluCounter, 879 mSDsCounter, 0 mSdLazyCounter, 1724 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 1724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-03 13:03:01,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 984 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 1724 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-03 13:03:01,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-03 13:03:01,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 278. [2024-11-03 13:03:01,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 187 states have (on average 1.1711229946524064) internal successors, (219), 188 states have internal predecessors, (219), 74 states have call successors, (74), 16 states have call predecessors, (74), 16 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-03 13:03:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 367 transitions. [2024-11-03 13:03:01,391 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 367 transitions. Word has length 173 [2024-11-03 13:03:01,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:03:01,391 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 367 transitions. [2024-11-03 13:03:01,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.1842105263157894) internal successors, (121), 36 states have internal predecessors, (121), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) [2024-11-03 13:03:01,391 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 367 transitions. [2024-11-03 13:03:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-03 13:03:01,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:03:01,393 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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 13:03:01,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Forceful destruction successful, exit code 0 [2024-11-03 13:03:01,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:01,594 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:03:01,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:03:01,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1109662877, now seen corresponding path program 1 times [2024-11-03 13:03:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:03:01,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [852933406] [2024-11-03 13:03:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:03:01,594 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:03:01,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:01,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:03:01,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 13:03:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:03:01,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-03 13:03:01,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:03:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 706 proven. 2 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-03 13:03:03,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:03:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-03 13:03:05,007 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:03:05,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [852933406] [2024-11-03 13:03:05,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [852933406] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 13:03:05,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 13:03:05,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12] total 20 [2024-11-03 13:03:05,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336435005] [2024-11-03 13:03:05,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 13:03:05,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 13:03:05,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:03:05,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 13:03:05,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2024-11-03 13:03:05,009 INFO L87 Difference]: Start difference. First operand 278 states and 367 transitions. Second operand has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 13:03:06,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:03:06,236 INFO L93 Difference]: Finished difference Result 325 states and 423 transitions. [2024-11-03 13:03:06,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 13:03:06,236 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 174 [2024-11-03 13:03:06,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:03:06,239 INFO L225 Difference]: With dead ends: 325 [2024-11-03 13:03:06,239 INFO L226 Difference]: Without dead ends: 323 [2024-11-03 13:03:06,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2024-11-03 13:03:06,240 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 32 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 13:03:06,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 311 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 13:03:06,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-03 13:03:06,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 273. [2024-11-03 13:03:06,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 182 states have (on average 1.1593406593406594) internal successors, (211), 183 states have internal predecessors, (211), 74 states have call successors, (74), 16 states have call predecessors, (74), 16 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-03 13:03:06,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 359 transitions. [2024-11-03 13:03:06,284 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 359 transitions. Word has length 174 [2024-11-03 13:03:06,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:03:06,285 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 359 transitions. [2024-11-03 13:03:06,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-03 13:03:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 359 transitions. [2024-11-03 13:03:06,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-03 13:03:06,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:03:06,286 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 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, 1, 1] [2024-11-03 13:03:06,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 13:03:06,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:06,487 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:03:06,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:03:06,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1107815835, now seen corresponding path program 1 times [2024-11-03 13:03:06,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:03:06,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1670175199] [2024-11-03 13:03:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:03:06,488 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:03:06,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:06,489 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:03:06,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 13:03:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:03:06,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-03 13:03:06,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:03:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 825 proven. 193 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-03 13:03:07,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:03:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 177 proven. 71 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2024-11-03 13:03:12,075 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:03:12,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1670175199] [2024-11-03 13:03:12,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1670175199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:03:12,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:03:12,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 42 [2024-11-03 13:03:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936463190] [2024-11-03 13:03:12,075 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:03:12,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-03 13:03:12,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:03:12,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-03 13:03:12,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=1335, Unknown=0, NotChecked=0, Total=1722 [2024-11-03 13:03:12,077 INFO L87 Difference]: Start difference. First operand 273 states and 359 transitions. Second operand has 42 states, 41 states have (on average 3.0) internal successors, (123), 39 states have internal predecessors, (123), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) [2024-11-03 13:03:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:03:18,306 INFO L93 Difference]: Finished difference Result 455 states and 590 transitions. [2024-11-03 13:03:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-03 13:03:18,307 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.0) internal successors, (123), 39 states have internal predecessors, (123), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) Word has length 174 [2024-11-03 13:03:18,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:03:18,309 INFO L225 Difference]: With dead ends: 455 [2024-11-03 13:03:18,309 INFO L226 Difference]: Without dead ends: 453 [2024-11-03 13:03:18,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2076 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1549, Invalid=4931, Unknown=0, NotChecked=0, Total=6480 [2024-11-03 13:03:18,312 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 379 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 2183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-03 13:03:18,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 826 Invalid, 2183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-03 13:03:18,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-03 13:03:18,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 370. [2024-11-03 13:03:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 244 states have (on average 1.1639344262295082) internal successors, (284), 247 states have internal predecessors, (284), 105 states have call successors, (105), 20 states have call predecessors, (105), 20 states have return successors, (105), 102 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-03 13:03:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 494 transitions. [2024-11-03 13:03:18,364 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 494 transitions. Word has length 174 [2024-11-03 13:03:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:03:18,365 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 494 transitions. [2024-11-03 13:03:18,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.0) internal successors, (123), 39 states have internal predecessors, (123), 11 states have call successors, (52), 7 states have call predecessors, (52), 12 states have return successors, (52), 11 states have call predecessors, (52), 11 states have call successors, (52) [2024-11-03 13:03:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 494 transitions. [2024-11-03 13:03:18,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-03 13:03:18,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:03:18,367 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:03:18,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Forceful destruction successful, exit code 0 [2024-11-03 13:03:18,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:18,568 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:03:18,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:03:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 304239104, now seen corresponding path program 1 times [2024-11-03 13:03:18,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:03:18,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465609653] [2024-11-03 13:03:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:03:18,569 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:03:18,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:18,570 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:03:18,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 13:03:18,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:03:18,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 13:03:18,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:03:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 2033 proven. 400 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2024-11-03 13:03:19,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:03:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 270 proven. 158 refuted. 0 times theorem prover too weak. 2631 trivial. 0 not checked. [2024-11-03 13:03:23,844 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:03:23,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465609653] [2024-11-03 13:03:23,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [465609653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:03:23,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:03:23,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 39 [2024-11-03 13:03:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449126461] [2024-11-03 13:03:23,844 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:03:23,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-03 13:03:23,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:03:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-03 13:03:23,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1156, Unknown=0, NotChecked=0, Total=1482 [2024-11-03 13:03:23,846 INFO L87 Difference]: Start difference. First operand 370 states and 494 transitions. Second operand has 39 states, 38 states have (on average 3.5) internal successors, (133), 37 states have internal predecessors, (133), 10 states have call successors, (68), 7 states have call predecessors, (68), 12 states have return successors, (69), 10 states have call predecessors, (69), 10 states have call successors, (69) [2024-11-03 13:03:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:03:28,354 INFO L93 Difference]: Finished difference Result 698 states and 908 transitions. [2024-11-03 13:03:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-03 13:03:28,355 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.5) internal successors, (133), 37 states have internal predecessors, (133), 10 states have call successors, (68), 7 states have call predecessors, (68), 12 states have return successors, (69), 10 states have call predecessors, (69), 10 states have call successors, (69) Word has length 258 [2024-11-03 13:03:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:03:28,357 INFO L225 Difference]: With dead ends: 698 [2024-11-03 13:03:28,357 INFO L226 Difference]: Without dead ends: 192 [2024-11-03 13:03:28,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 479 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1605 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1263, Invalid=4743, Unknown=0, NotChecked=0, Total=6006 [2024-11-03 13:03:28,360 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 255 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-03 13:03:28,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 1073 Invalid, 1852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-03 13:03:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-03 13:03:28,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 178. [2024-11-03 13:03:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 117 states have (on average 1.1111111111111112) internal successors, (130), 118 states have internal predecessors, (130), 48 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-03 13:03:28,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 226 transitions. [2024-11-03 13:03:28,390 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 226 transitions. Word has length 258 [2024-11-03 13:03:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:03:28,390 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 226 transitions. [2024-11-03 13:03:28,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.5) internal successors, (133), 37 states have internal predecessors, (133), 10 states have call successors, (68), 7 states have call predecessors, (68), 12 states have return successors, (69), 10 states have call predecessors, (69), 10 states have call successors, (69) [2024-11-03 13:03:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 226 transitions. [2024-11-03 13:03:28,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-03 13:03:28,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 13:03:28,391 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:03:28,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Forceful destruction successful, exit code 0 [2024-11-03 13:03:28,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:28,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 13:03:28,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 13:03:28,593 INFO L85 PathProgramCache]: Analyzing trace with hash -356278144, now seen corresponding path program 1 times [2024-11-03 13:03:28,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 13:03:28,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [167710438] [2024-11-03 13:03:28,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 13:03:28,593 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 13:03:28,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:28,594 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 13:03:28,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-03 13:03:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 13:03:28,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 13:03:28,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 13:03:28,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 1415 proven. 699 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2024-11-03 13:03:28,784 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 13:03:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 63 proven. 23 refuted. 0 times theorem prover too weak. 2973 trivial. 0 not checked. [2024-11-03 13:03:28,903 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 13:03:28,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [167710438] [2024-11-03 13:03:28,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [167710438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 13:03:28,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 13:03:28,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2024-11-03 13:03:28,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389384719] [2024-11-03 13:03:28,904 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 13:03:28,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 13:03:28,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 13:03:28,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 13:03:28,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-03 13:03:28,905 INFO L87 Difference]: Start difference. First operand 178 states and 226 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-03 13:03:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 13:03:28,932 INFO L93 Difference]: Finished difference Result 231 states and 289 transitions. [2024-11-03 13:03:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 13:03:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 258 [2024-11-03 13:03:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 13:03:28,933 INFO L225 Difference]: With dead ends: 231 [2024-11-03 13:03:28,933 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 13:03:28,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-03 13:03:28,934 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 13:03:28,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 13:03:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 13:03:28,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 13:03:28,934 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 13:03:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 13:03:28,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2024-11-03 13:03:28,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 13:03:28,935 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 13:03:28,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-03 13:03:28,935 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 13:03:28,935 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 13:03:28,937 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 13:03:28,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Ended with exit code 0 [2024-11-03 13:03:29,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 13:03:29,140 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 13:03:29,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 13:03:49,238 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 13:03:49,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:03:49 BoogieIcfgContainer [2024-11-03 13:03:49,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 13:03:49,256 INFO L158 Benchmark]: Toolchain (without parser) took 81030.25ms. Allocated memory was 354.4MB in the beginning and 769.7MB in the end (delta: 415.2MB). Free memory was 311.6MB in the beginning and 327.4MB in the end (delta: -15.8MB). Peak memory consumption was 458.8MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.08ms. Allocated memory is still 354.4MB. Free memory was 311.6MB in the beginning and 296.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.14ms. Allocated memory is still 354.4MB. Free memory was 296.4MB in the beginning and 294.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 354.4MB. Free memory was 294.8MB in the beginning and 292.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: RCFGBuilder took 410.94ms. Allocated memory is still 354.4MB. Free memory was 291.7MB in the beginning and 277.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,257 INFO L158 Benchmark]: TraceAbstraction took 80351.46ms. Allocated memory was 354.4MB in the beginning and 769.7MB in the end (delta: 415.2MB). Free memory was 275.9MB in the beginning and 327.4MB in the end (delta: -51.5MB). Peak memory consumption was 423.2MB. Max. memory is 8.0GB. [2024-11-03 13:03:49,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 208.7MB. Free memory is still 159.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 196.08ms. Allocated memory is still 354.4MB. Free memory was 311.6MB in the beginning and 296.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.14ms. Allocated memory is still 354.4MB. Free memory was 296.4MB in the beginning and 294.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 354.4MB. Free memory was 294.8MB in the beginning and 292.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 410.94ms. Allocated memory is still 354.4MB. Free memory was 291.7MB in the beginning and 277.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 80351.46ms. Allocated memory was 354.4MB in the beginning and 769.7MB in the end (delta: 415.2MB). Free memory was 275.9MB in the beginning and 327.4MB in the end (delta: -51.5MB). Peak memory consumption was 423.2MB. 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.2s, OverallIterations: 9, TraceHistogramMax: 39, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 1663 SdHoareTripleChecker+Valid, 14.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1636 mSDsluCounter, 4961 SdHoareTripleChecker+Invalid, 13.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4248 mSDsCounter, 1235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6445 IncrementalHoareTripleChecker+Invalid, 7684 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1235 mSolverCounterUnsat, 713 mSDtfsCounter, 6445 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3099 GetRequests, 2762 SyntacticMatches, 4 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6003 ImplicationChecksByTransitivity, 16.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=7, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 354 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 33.5s InterpolantComputationTime, 1473 NumberOfCodeBlocks, 1473 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2928 ConstructedInterpolants, 210 QuantifiedInterpolants, 40852 SizeOfPredicates, 144 NumberOfNonLiveVariables, 2240 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 21706/24760 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: 94]: Loop Invariant Derived loop invariant: ((((((((((0 != \old(cond)) || (var_1_13 <= 1)) && (10 == var_1_14)) && (last_1_var_1_10 == 0)) && (10 >= var_1_1)) && (0 == var_1_10)) && (5 == last_1_var_1_6)) && (var_1_6 == 5)) || (((((((((var_1_13 >= 1) && (10 == var_1_14)) && (10 != var_1_11)) && (last_1_var_1_10 == 0)) && (6 == var_1_1)) && (var_1_6 == 10)) && (0 == var_1_10)) && (var_1_13 <= 1)) && (10 != -var_1_11))) || (((1 == var_1_10) && (0 != var_1_13)) && (var_1_13 <= 1))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((((((((10 == var_1_14) && (last_1_var_1_10 == 0)) && (10 >= var_1_1)) && (0 == var_1_10)) && (5 == last_1_var_1_6)) && (var_1_6 == 5)) || (1 == var_1_10)) || ((((((10 == var_1_14) && (last_1_var_1_10 == 0)) && (10 >= var_1_1)) && (6 == var_1_1)) && (var_1_6 == 10)) && (0 == var_1_10))) Ensures: (((0 != cond) && ((((((((10 == var_1_14) && (last_1_var_1_10 == 0)) && (10 >= var_1_1)) && (0 == var_1_10)) && (5 == last_1_var_1_6)) && (var_1_6 == 5)) || (1 == var_1_10)) || ((((((10 == var_1_14) && (last_1_var_1_10 == 0)) && (10 >= var_1_1)) && (6 == var_1_1)) && (var_1_6 == 10)) && (0 == var_1_10)))) && (((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_16 == \old(var_1_16))) && (last_1_var_1_6 == \old(last_1_var_1_6))) && (last_1_var_1_10 == \old(last_1_var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 13:03:49,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...