/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:42:39,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:42:39,255 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 12:42:39,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:42:39,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:42:39,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:42:39,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:42:39,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:42:39,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:42:39,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:42:39,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:42:39,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:42:39,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:42:39,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:42:39,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:42:39,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:42:39,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:42:39,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:42:39,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:42:39,293 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:42:39,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:42:39,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:42:39,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:42:39,295 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:42:39,296 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:42:39,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:42:39,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:42:39,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:42:39,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:42:39,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:42:39,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:42:39,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:42:39,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:42:39,501 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:42:39,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:42:39,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i [2024-11-03 12:42:40,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:42:40,975 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:42:40,976 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i [2024-11-03 12:42:40,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6295bc19/a2dc4f1f8c0b461d9045aa5b208d6f2a/FLAGab423a38e [2024-11-03 12:42:41,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6295bc19/a2dc4f1f8c0b461d9045aa5b208d6f2a [2024-11-03 12:42:41,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:42:41,413 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:42:41,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:42:41,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:42:41,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:42:41,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ed2e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41, skipping insertion in model container [2024-11-03 12:42:41,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,435 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:42:41,532 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i[915,928] [2024-11-03 12:42:41,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:42:41,563 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:42:41,572 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-39.i[915,928] [2024-11-03 12:42:41,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:42:41,593 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:42:41,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41 WrapperNode [2024-11-03 12:42:41,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:42:41,596 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:42:41,596 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:42:41,596 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:42:41,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,609 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,623 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 78 [2024-11-03 12:42:41,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:42:41,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:42:41,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:42:41,624 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:42:41,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,639 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 12:42:41,639 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:42:41,649 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:42:41,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:42:41,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:42:41,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (1/1) ... [2024-11-03 12:42:41,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:42:41,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:42:41,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 12:42:41,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 12:42:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:42:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:42:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:42:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:42:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:42:41,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:42:41,758 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:42:41,760 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:42:41,960 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 12:42:41,961 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:42:41,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:42:41,970 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:42:41,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:42:41 BoogieIcfgContainer [2024-11-03 12:42:41,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:42:41,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:42:41,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:42:41,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:42:41,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:42:41" (1/3) ... [2024-11-03 12:42:41,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763f8b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:42:41, skipping insertion in model container [2024-11-03 12:42:41,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:42:41" (2/3) ... [2024-11-03 12:42:41,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763f8b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:42:41, skipping insertion in model container [2024-11-03 12:42:41,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:42:41" (3/3) ... [2024-11-03 12:42:41,976 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-39.i [2024-11-03 12:42:41,988 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:42:41,989 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:42:42,029 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:42:42,034 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;@2dc04ade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:42:42,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:42:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 12:42:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-03 12:42:42,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:42:42,047 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:42:42,048 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:42:42,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:42:42,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2027876380, now seen corresponding path program 1 times [2024-11-03 12:42:42,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:42:42,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597417692] [2024-11-03 12:42:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:42:42,061 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:42:42,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:42,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:42:42,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:42:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:42:42,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:42:42,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:42:42,178 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 12:42:42,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:42:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-11-03 12:42:42,244 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:42:42,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597417692] [2024-11-03 12:42:42,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [597417692] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:42:42,245 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:42:42,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:42:42,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903150619] [2024-11-03 12:42:42,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:42:42,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:42:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:42:42,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:42:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:42:42,267 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 24 states have internal predecessors, (29), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:42:42,288 INFO L93 Difference]: Finished difference Result 69 states and 112 transitions. [2024-11-03 12:42:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:42:42,291 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2024-11-03 12:42:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:42:42,297 INFO L225 Difference]: With dead ends: 69 [2024-11-03 12:42:42,297 INFO L226 Difference]: Without dead ends: 34 [2024-11-03 12:42:42,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:42:42,305 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:42:42,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:42:42,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-03 12:42:42,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-03 12:42:42,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 12:42:42,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-11-03 12:42:42,340 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 76 [2024-11-03 12:42:42,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:42:42,340 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-11-03 12:42:42,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-03 12:42:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-03 12:42:42,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:42:42,344 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:42:42,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:42:42,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:42,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:42:42,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:42:42,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1552619548, now seen corresponding path program 1 times [2024-11-03 12:42:42,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:42:42,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435739378] [2024-11-03 12:42:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:42:42,551 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:42:42,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:42,552 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:42:42,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:42:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:42:42,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-03 12:42:42,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:42:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 159 proven. 36 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-03 12:42:43,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:42:44,148 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 12:42:44,148 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:42:44,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435739378] [2024-11-03 12:42:44,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1435739378] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:42:44,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:42:44,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 21 [2024-11-03 12:42:44,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770860085] [2024-11-03 12:42:44,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:42:44,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:42:44,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:42:44,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:42:44,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2024-11-03 12:42:44,151 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:42:44,378 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2024-11-03 12:42:44,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 12:42:44,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2024-11-03 12:42:44,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:42:44,380 INFO L225 Difference]: With dead ends: 42 [2024-11-03 12:42:44,380 INFO L226 Difference]: Without dead ends: 40 [2024-11-03 12:42:44,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2024-11-03 12:42:44,381 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 13 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 12:42:44,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 170 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 12:42:44,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-03 12:42:44,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2024-11-03 12:42:44,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 12:42:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2024-11-03 12:42:44,388 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 76 [2024-11-03 12:42:44,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:42:44,389 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-03 12:42:44,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-03 12:42:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-03 12:42:44,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:42:44,390 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:42:44,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:42:44,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:44,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:42:44,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:42:44,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1554466590, now seen corresponding path program 1 times [2024-11-03 12:42:44,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:42:44,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751946730] [2024-11-03 12:42:44,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:42:44,593 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:42:44,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:44,595 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:42:44,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:42:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:42:44,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-03 12:42:44,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:42:45,389 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 159 proven. 36 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-03 12:42:45,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:42:45,819 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 12:42:45,819 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:42:45,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751946730] [2024-11-03 12:42:45,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [751946730] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:42:45,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:42:45,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 21 [2024-11-03 12:42:45,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782743592] [2024-11-03 12:42:45,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:42:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:42:45,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:42:45,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:42:45,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-03 12:42:45,821 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:42:46,010 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2024-11-03 12:42:46,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-03 12:42:46,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 76 [2024-11-03 12:42:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:42:46,011 INFO L225 Difference]: With dead ends: 39 [2024-11-03 12:42:46,011 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:42:46,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2024-11-03 12:42:46,013 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 12:42:46,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 173 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 12:42:46,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:42:46,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:42:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-03 12:42:46,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:42:46,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2024-11-03 12:42:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:42:46,014 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:42:46,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-03 12:42:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:42:46,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:42:46,016 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:42:46,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:42:46,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:42:46,221 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-03 12:42:46,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:42:46,363 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:42:46,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:42:46 BoogieIcfgContainer [2024-11-03 12:42:46,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:42:46,386 INFO L158 Benchmark]: Toolchain (without parser) took 4972.45ms. Allocated memory was 227.5MB in the beginning and 370.1MB in the end (delta: 142.6MB). Free memory was 169.2MB in the beginning and 336.5MB in the end (delta: -167.3MB). Peak memory consumption was 188.6MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,386 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 227.5MB. Free memory is still 182.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:42:46,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.42ms. Allocated memory is still 227.5MB. Free memory was 169.2MB in the beginning and 155.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.50ms. Allocated memory is still 227.5MB. Free memory was 155.3MB in the beginning and 153.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,386 INFO L158 Benchmark]: Boogie Preprocessor took 24.84ms. Allocated memory is still 227.5MB. Free memory was 153.6MB in the beginning and 151.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,386 INFO L158 Benchmark]: RCFGBuilder took 321.42ms. Allocated memory was 227.5MB in the beginning and 288.4MB in the end (delta: 60.8MB). Free memory was 151.5MB in the beginning and 255.2MB in the end (delta: -103.8MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,387 INFO L158 Benchmark]: TraceAbstraction took 4413.25ms. Allocated memory was 288.4MB in the beginning and 370.1MB in the end (delta: 81.8MB). Free memory was 254.7MB in the beginning and 336.5MB in the end (delta: -81.8MB). Peak memory consumption was 212.9MB. Max. memory is 8.0GB. [2024-11-03 12:42:46,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 227.5MB. Free memory is still 182.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 180.42ms. Allocated memory is still 227.5MB. Free memory was 169.2MB in the beginning and 155.3MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.50ms. Allocated memory is still 227.5MB. Free memory was 155.3MB in the beginning and 153.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.84ms. Allocated memory is still 227.5MB. Free memory was 153.6MB in the beginning and 151.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 321.42ms. Allocated memory was 227.5MB in the beginning and 288.4MB in the end (delta: 60.8MB). Free memory was 151.5MB in the beginning and 255.2MB in the end (delta: -103.8MB). Peak memory consumption was 15.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4413.25ms. Allocated memory was 288.4MB in the beginning and 370.1MB in the end (delta: 81.8MB). Free memory was 254.7MB in the beginning and 336.5MB in the end (delta: -81.8MB). Peak memory consumption was 212.9MB. 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 389 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 131 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 450 ConstructedInterpolants, 4 QuantifiedInterpolants, 2383 SizeOfPredicates, 26 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 1512/1584 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: 70]: Loop Invariant Derived loop invariant: (((((var_1_2 == 0) || (var_1_3 == 0)) || ((var_1_5 != 0) && (var_1_4 == 0))) || (var_1_1 != 0)) && (((((var_1_1 == 1) && (var_1_3 != 0)) && ((var_1_4 != 0) || (var_1_5 == 0))) && (var_1_2 != 0)) || (var_1_1 == 0))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (last_1_var_1_6 == \old(last_1_var_1_6))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:42:46,415 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...