/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-82.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:44:43,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:44:43,661 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 12:44:43,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:44:43,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:44:43,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:44:43,691 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:44:43,692 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:44:43,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:44:43,694 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:44:43,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:44:43,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:44:43,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:44:43,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:44:43,695 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:44:43,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:44:43,697 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:44:43,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:44:43,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:44:43,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:44:43,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:44:43,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:44:43,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:44:43,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:44:43,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:44:43,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:44:43,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:44:43,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:44:43,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:44:43,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:44:43,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:44:43,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:44:43,702 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:44:43,702 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:44:43,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:44:43,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:44:43,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:44:43,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:44:43,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:44:43,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:44:43,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:44:43,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:44:43,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:44:43,917 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:44:43,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i [2024-11-03 12:44:45,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:44:45,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:44:45,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-82.i [2024-11-03 12:44:45,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abaa88963/948de7c6a4eb4f5ab0ec02f7564bbe8f/FLAGc37a4e4f6 [2024-11-03 12:44:45,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abaa88963/948de7c6a4eb4f5ab0ec02f7564bbe8f [2024-11-03 12:44:45,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:44:45,450 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:44:45,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:44:45,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:44:45,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:44:45,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226ccbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45, skipping insertion in model container [2024-11-03 12:44:45,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:44:45,602 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-82.i[915,928] [2024-11-03 12:44:45,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:44:45,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:44:45,655 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-82.i[915,928] [2024-11-03 12:44:45,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:44:45,681 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:44:45,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45 WrapperNode [2024-11-03 12:44:45,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:44:45,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:44:45,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:44:45,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:44:45,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,713 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 80 [2024-11-03 12:44:45,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:44:45,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:44:45,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:44:45,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:44:45,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,731 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 12:44:45,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:44:45,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:44:45,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:44:45,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:44:45,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (1/1) ... [2024-11-03 12:44:45,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:44:45,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:44:45,769 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 12:44:45,778 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 12:44:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:44:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:44:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:44:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:44:45,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:44:45,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:44:45,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:44:45,849 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:44:45,992 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 12:44:45,992 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:44:46,001 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:44:46,001 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:44:46,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:46 BoogieIcfgContainer [2024-11-03 12:44:46,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:44:46,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:44:46,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:44:46,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:44:46,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:44:45" (1/3) ... [2024-11-03 12:44:46,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbc3e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:46, skipping insertion in model container [2024-11-03 12:44:46,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:45" (2/3) ... [2024-11-03 12:44:46,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bbc3e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:46, skipping insertion in model container [2024-11-03 12:44:46,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:46" (3/3) ... [2024-11-03 12:44:46,007 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-82.i [2024-11-03 12:44:46,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:44:46,044 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:44:46,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:44:46,143 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;@7f13ca17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:44:46,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:44:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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 12:44:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-03 12:44:46,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:46,163 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 12:44:46,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:46,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:46,167 INFO L85 PathProgramCache]: Analyzing trace with hash 157742812, now seen corresponding path program 1 times [2024-11-03 12:44:46,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:46,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703733040] [2024-11-03 12:44:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:46,176 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:46,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:46,178 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 12:44:46,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:44:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:46,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:44:46,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:46,278 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 12:44:46,279 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:46,328 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 12:44:46,329 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:44:46,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703733040] [2024-11-03 12:44:46,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [703733040] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:44:46,330 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:44:46,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:44:46,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227710420] [2024-11-03 12:44:46,332 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:44:46,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:44:46,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:44:46,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:44:46,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:44:46,356 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 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 12:44:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:44:46,373 INFO L93 Difference]: Finished difference Result 73 states and 120 transitions. [2024-11-03 12:44:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:44:46,375 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 12:44:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:44:46,380 INFO L225 Difference]: With dead ends: 73 [2024-11-03 12:44:46,380 INFO L226 Difference]: Without dead ends: 36 [2024-11-03 12:44:46,382 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 12:44:46,384 INFO L432 NwaCegarLoop]: 50 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, 50 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 12:44:46,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:44:46,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-03 12:44:46,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-03 12:44:46,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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 12:44:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2024-11-03 12:44:46,410 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 76 [2024-11-03 12:44:46,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:44:46,411 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2024-11-03 12:44:46,411 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 12:44:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-11-03 12:44:46,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-03 12:44:46,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:46,413 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 12:44:46,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:44:46,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:46,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:46,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:46,616 INFO L85 PathProgramCache]: Analyzing trace with hash -317514020, now seen corresponding path program 1 times [2024-11-03 12:44:46,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:46,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455932692] [2024-11-03 12:44:46,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:46,617 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:46,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:46,621 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 12:44:46,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:44:46,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:46,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 12:44:46,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:49,779 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 12:44:49,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:50,323 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 12:44:50,323 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:44:50,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455932692] [2024-11-03 12:44:50,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [455932692] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:44:50,324 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:44:50,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 10 [2024-11-03 12:44:50,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316647637] [2024-11-03 12:44:50,324 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:44:50,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 12:44:50,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:44:50,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 12:44:50,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:44:50,326 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:50,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:44:50,668 INFO L93 Difference]: Finished difference Result 82 states and 111 transitions. [2024-11-03 12:44:50,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 12:44:50,668 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 76 [2024-11-03 12:44:50,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:44:50,670 INFO L225 Difference]: With dead ends: 82 [2024-11-03 12:44:50,670 INFO L226 Difference]: Without dead ends: 80 [2024-11-03 12:44:50,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-03 12:44:50,671 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 38 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:44:50,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 266 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 12:44:50,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-03 12:44:50,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 39. [2024-11-03 12:44:50,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.16) internal successors, (29), 25 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 12:44:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-03 12:44:50,682 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 76 [2024-11-03 12:44:50,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:44:50,683 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-03 12:44:50,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:50,683 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-03 12:44:50,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-03 12:44:50,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:50,687 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, 1] [2024-11-03 12:44:50,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:44:50,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:50,888 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:50,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:50,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1197651236, now seen corresponding path program 1 times [2024-11-03 12:44:50,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:50,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944745050] [2024-11-03 12:44:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:50,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:50,891 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 12:44:50,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:44:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:50,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 12:44:50,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:51,438 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 12:44:51,439 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:52,081 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 12:44:52,081 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:44:52,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944745050] [2024-11-03 12:44:52,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1944745050] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:44:52,082 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:44:52,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2024-11-03 12:44:52,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767445192] [2024-11-03 12:44:52,082 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:44:52,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 12:44:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:44:52,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 12:44:52,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:44:52,084 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:52,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:44:52,524 INFO L93 Difference]: Finished difference Result 92 states and 121 transitions. [2024-11-03 12:44:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-03 12:44:52,524 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 77 [2024-11-03 12:44:52,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:44:52,526 INFO L225 Difference]: With dead ends: 92 [2024-11-03 12:44:52,526 INFO L226 Difference]: Without dead ends: 90 [2024-11-03 12:44:52,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-03 12:44:52,527 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 51 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-03 12:44:52,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 274 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-03 12:44:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-03 12:44:52,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 39. [2024-11-03 12:44:52,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.16) internal successors, (29), 25 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 12:44:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-03 12:44:52,536 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 77 [2024-11-03 12:44:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:44:52,536 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-03 12:44:52,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:52,537 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-03 12:44:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-03 12:44:52,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:52,537 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, 1, 1] [2024-11-03 12:44:52,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:44:52,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:52,739 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:52,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:52,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1291957025, now seen corresponding path program 1 times [2024-11-03 12:44:52,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:52,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438821039] [2024-11-03 12:44:52,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:52,740 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:52,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:52,742 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:44:52,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:44:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:52,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 12:44:52,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:53,109 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 12:44:53,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:54,151 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 12:44:54,151 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:44:54,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438821039] [2024-11-03 12:44:54,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [438821039] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:44:54,152 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:44:54,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2024-11-03 12:44:54,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882417791] [2024-11-03 12:44:54,152 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:44:54,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 12:44:54,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:44:54,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 12:44:54,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-03 12:44:54,153 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:55,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:44:55,357 INFO L93 Difference]: Finished difference Result 100 states and 129 transitions. [2024-11-03 12:44:55,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 12:44:55,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 78 [2024-11-03 12:44:55,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:44:55,359 INFO L225 Difference]: With dead ends: 100 [2024-11-03 12:44:55,359 INFO L226 Difference]: Without dead ends: 98 [2024-11-03 12:44:55,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-03 12:44:55,360 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:44:55,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 255 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 12:44:55,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-03 12:44:55,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 39. [2024-11-03 12:44:55,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.16) internal successors, (29), 25 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 12:44:55,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2024-11-03 12:44:55,365 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 78 [2024-11-03 12:44:55,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:44:55,365 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2024-11-03 12:44:55,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2024-11-03 12:44:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-03 12:44:55,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:55,366 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, 1, 1] [2024-11-03 12:44:55,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-03 12:44:55,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:55,570 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:55,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1293804067, now seen corresponding path program 1 times [2024-11-03 12:44:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:55,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469870872] [2024-11-03 12:44:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:55,571 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:55,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:55,574 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:44:55,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:44:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:55,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 12:44:55,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:55,948 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 12:44:55,949 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:56,554 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 12:44:56,554 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:44:56,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469870872] [2024-11-03 12:44:56,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1469870872] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:44:56,555 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:44:56,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2024-11-03 12:44:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203451980] [2024-11-03 12:44:56,555 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:44:56,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 12:44:56,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:44:56,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 12:44:56,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-03 12:44:56,562 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:57,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:44:57,639 INFO L93 Difference]: Finished difference Result 98 states and 127 transitions. [2024-11-03 12:44:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-03 12:44:57,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 78 [2024-11-03 12:44:57,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:44:57,640 INFO L225 Difference]: With dead ends: 98 [2024-11-03 12:44:57,640 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 12:44:57,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=872, Unknown=0, NotChecked=0, Total=1122 [2024-11-03 12:44:57,641 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 63 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:44:57,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 247 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 12:44:57,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 12:44:57,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 12:44:57,642 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 12:44:57,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 12:44:57,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2024-11-03 12:44:57,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:44:57,642 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 12:44:57,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 14 states have internal predecessors, (41), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-03 12:44:57,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 12:44:57,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 12:44:57,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 12:44:57,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 12:44:57,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:57,848 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-03 12:44:57,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 12:44:57,972 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 12:44:57,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-03 12:44:57,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-03 12:44:57,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-03 12:44:57,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 12:44:57 BoogieIcfgContainer [2024-11-03 12:44:57,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 12:44:57,989 INFO L158 Benchmark]: Toolchain (without parser) took 12539.36ms. Allocated memory was 219.2MB in the beginning and 962.6MB in the end (delta: 743.4MB). Free memory was 164.9MB in the beginning and 889.6MB in the end (delta: -724.8MB). Peak memory consumption was 20.2MB. Max. memory is 8.0GB. [2024-11-03 12:44:57,989 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 219.2MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:44:57,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.43ms. Allocated memory is still 219.2MB. Free memory was 164.9MB in the beginning and 150.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 12:44:57,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.74ms. Allocated memory is still 219.2MB. Free memory was 150.9MB in the beginning and 149.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 12:44:57,991 INFO L158 Benchmark]: Boogie Preprocessor took 28.89ms. Allocated memory is still 219.2MB. Free memory was 149.2MB in the beginning and 147.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-03 12:44:57,991 INFO L158 Benchmark]: RCFGBuilder took 258.08ms. Allocated memory is still 219.2MB. Free memory was 147.0MB in the beginning and 134.1MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-03 12:44:57,991 INFO L158 Benchmark]: TraceAbstraction took 11986.15ms. Allocated memory was 219.2MB in the beginning and 962.6MB in the end (delta: 743.4MB). Free memory was 133.5MB in the beginning and 889.6MB in the end (delta: -756.2MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 12:44:57,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 219.2MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.43ms. Allocated memory is still 219.2MB. Free memory was 164.9MB in the beginning and 150.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.74ms. Allocated memory is still 219.2MB. Free memory was 150.9MB in the beginning and 149.2MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.89ms. Allocated memory is still 219.2MB. Free memory was 149.2MB in the beginning and 147.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 258.08ms. Allocated memory is still 219.2MB. Free memory was 147.0MB in the beginning and 134.1MB in the end (delta: 12.9MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 11986.15ms. Allocated memory was 219.2MB in the beginning and 962.6MB in the end (delta: 743.4MB). Free memory was 133.5MB in the beginning and 889.6MB in the end (delta: -756.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression * 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, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 5, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 1092 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 867 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 766 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 225 mSDtfsCounter, 766 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 803 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 66, 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, 5 MinimizatonAttempts, 151 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 385 NumberOfCodeBlocks, 385 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 760 ConstructedInterpolants, 7 QuantifiedInterpolants, 2623 SizeOfPredicates, 51 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2640/2640 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: 77]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (last_1_var_1_1 == \old(last_1_var_1_1))) RESULT: Ultimate proved your program to be correct! [2024-11-03 12:44:58,018 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...