/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-42.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 01:28:33,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 01:28:34,015 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 01:28:34,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 01:28:34,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 01:28:34,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 01:28:34,038 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 01:28:34,039 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 01:28:34,039 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 01:28:34,039 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 01:28:34,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 01:28:34,040 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 01:28:34,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 01:28:34,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 01:28:34,041 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 01:28:34,042 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 01:28:34,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 01:28:34,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 01:28:34,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 01:28:34,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 01:28:34,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 01:28:34,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 01:28:34,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 01:28:34,044 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 01:28:34,044 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 01:28:34,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 01:28:34,045 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 01:28:34,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 01:28:34,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 01:28:34,046 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 01:28:34,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 01:28:34,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 01:28:34,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 01:28:34,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 01:28:34,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:28:34,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 01:28:34,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 01:28:34,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 01:28:34,048 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 01:28:34,048 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:34,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 01:28:34,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 01:28:34,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 01:28:34,049 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 01:28:34,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:34,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 01:28:34,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 01:28:34,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 01:28:34,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 01:28:34,304 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 01:28:34,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-42.i [2024-11-03 01:28:35,686 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 01:28:35,867 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 01:28:35,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-42.i [2024-11-03 01:28:35,875 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e469e31c/086d286be30c4fb59ed326a3c99c18fa/FLAG3a387c0fd [2024-11-03 01:28:35,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e469e31c/086d286be30c4fb59ed326a3c99c18fa [2024-11-03 01:28:35,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 01:28:35,895 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 01:28:35,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 01:28:35,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 01:28:35,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 01:28:35,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:28:35" (1/1) ... [2024-11-03 01:28:35,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bba981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:35, skipping insertion in model container [2024-11-03 01:28:35,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:28:35" (1/1) ... [2024-11-03 01:28:35,924 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 01:28:36,085 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-42.i[915,928] [2024-11-03 01:28:36,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:28:36,136 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 01:28:36,148 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount25_file-42.i[915,928] [2024-11-03 01:28:36,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:28:36,180 INFO L204 MainTranslator]: Completed translation [2024-11-03 01:28:36,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36 WrapperNode [2024-11-03 01:28:36,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 01:28:36,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 01:28:36,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 01:28:36,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 01:28:36,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,223 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2024-11-03 01:28:36,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 01:28:36,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 01:28:36,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 01:28:36,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 01:28:36,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,251 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 01:28:36,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 01:28:36,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 01:28:36,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 01:28:36,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 01:28:36,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (1/1) ... [2024-11-03 01:28:36,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:28:36,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 01:28:36,301 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 01:28:36,303 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 01:28:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 01:28:36,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 01:28:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 01:28:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 01:28:36,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 01:28:36,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 01:28:36,388 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 01:28:36,390 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 01:28:36,617 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-03 01:28:36,617 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 01:28:36,627 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 01:28:36,628 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 01:28:36,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:28:36 BoogieIcfgContainer [2024-11-03 01:28:36,628 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 01:28:36,631 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 01:28:36,631 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 01:28:36,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 01:28:36,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:28:35" (1/3) ... [2024-11-03 01:28:36,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa69e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:28:36, skipping insertion in model container [2024-11-03 01:28:36,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:28:36" (2/3) ... [2024-11-03 01:28:36,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aa69e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:28:36, skipping insertion in model container [2024-11-03 01:28:36,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:28:36" (3/3) ... [2024-11-03 01:28:36,640 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-42.i [2024-11-03 01:28:36,659 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 01:28:36,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 01:28:36,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 01:28:36,715 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;@16e1269a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 01:28:36,716 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 01:28:36,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 01:28:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-03 01:28:36,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:28:36,732 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:36,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:28:36,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:28:36,758 INFO L85 PathProgramCache]: Analyzing trace with hash 350031807, now seen corresponding path program 1 times [2024-11-03 01:28:36,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:28:36,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [961136256] [2024-11-03 01:28:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:28:36,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:36,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:28:36,768 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:28:36,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 01:28:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:28:36,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 01:28:36,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:28:37,022 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-03 01:28:37,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:28:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-03 01:28:37,129 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:28:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [961136256] [2024-11-03 01:28:37,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [961136256] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:28:37,130 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:28:37,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 01:28:37,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223822972] [2024-11-03 01:28:37,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:28:37,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 01:28:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:28:37,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 01:28:37,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 01:28:37,166 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 01:28:37,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:28:37,197 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2024-11-03 01:28:37,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 01:28:37,199 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-11-03 01:28:37,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:28:37,207 INFO L225 Difference]: With dead ends: 89 [2024-11-03 01:28:37,208 INFO L226 Difference]: Without dead ends: 44 [2024-11-03 01:28:37,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 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 01:28:37,215 INFO L432 NwaCegarLoop]: 62 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, 62 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 01:28:37,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 01:28:37,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-03 01:28:37,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-03 01:28:37,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 01:28:37,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 62 transitions. [2024-11-03 01:28:37,255 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 62 transitions. Word has length 97 [2024-11-03 01:28:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:28:37,255 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 62 transitions. [2024-11-03 01:28:37,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 1 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 01:28:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2024-11-03 01:28:37,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-03 01:28:37,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:28:37,263 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:37,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 01:28:37,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:37,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:28:37,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:28:37,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1682017665, now seen corresponding path program 1 times [2024-11-03 01:28:37,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:28:37,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [839490863] [2024-11-03 01:28:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:28:37,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:37,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:28:37,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:28:37,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 01:28:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:28:37,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-03 01:28:37,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:28:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 01:28:37,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:28:58,400 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 01:28:58,400 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:28:58,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [839490863] [2024-11-03 01:28:58,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [839490863] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:28:58,401 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:28:58,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 8] imperfect sequences [] total 10 [2024-11-03 01:28:58,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897972090] [2024-11-03 01:28:58,401 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:28:58,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 01:28:58,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:28:58,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 01:28:58,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-03 01:28:58,406 INFO L87 Difference]: Start difference. First operand 44 states and 62 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 01:28:59,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:28:59,038 INFO L93 Difference]: Finished difference Result 135 states and 190 transitions. [2024-11-03 01:28:59,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 01:28:59,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 97 [2024-11-03 01:28:59,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:28:59,042 INFO L225 Difference]: With dead ends: 135 [2024-11-03 01:28:59,042 INFO L226 Difference]: Without dead ends: 94 [2024-11-03 01:28:59,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2024-11-03 01:28:59,044 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 90 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 01:28:59,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 569 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 01:28:59,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-03 01:28:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 51. [2024-11-03 01:28:59,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 states have internal predecessors, (39), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 01:28:59,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2024-11-03 01:28:59,056 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 97 [2024-11-03 01:28:59,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:28:59,058 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2024-11-03 01:28:59,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-03 01:28:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2024-11-03 01:28:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-03 01:28:59,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:28:59,060 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:59,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 01:28:59,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:59,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:28:59,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:28:59,262 INFO L85 PathProgramCache]: Analyzing trace with hash -157883899, now seen corresponding path program 1 times [2024-11-03 01:28:59,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:28:59,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926302657] [2024-11-03 01:28:59,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:28:59,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:28:59,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:28:59,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:28:59,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 01:28:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:28:59,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 01:28:59,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:28:59,585 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 01:28:59,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:28:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-03 01:28:59,685 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:28:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926302657] [2024-11-03 01:28:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1926302657] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:28:59,685 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:28:59,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 01:28:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452701737] [2024-11-03 01:28:59,686 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:28:59,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 01:28:59,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:28:59,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 01:28:59,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 01:28:59,688 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-03 01:28:59,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:28:59,865 INFO L93 Difference]: Finished difference Result 140 states and 192 transitions. [2024-11-03 01:28:59,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 01:28:59,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 97 [2024-11-03 01:28:59,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:28:59,868 INFO L225 Difference]: With dead ends: 140 [2024-11-03 01:28:59,868 INFO L226 Difference]: Without dead ends: 92 [2024-11-03 01:28:59,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-03 01:28:59,870 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 102 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 01:28:59,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 104 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 01:28:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-03 01:28:59,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 47. [2024-11-03 01:28:59,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-03 01:28:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 63 transitions. [2024-11-03 01:28:59,881 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 63 transitions. Word has length 97 [2024-11-03 01:28:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:28:59,882 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 63 transitions. [2024-11-03 01:28:59,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-03 01:28:59,882 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2024-11-03 01:28:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-03 01:28:59,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:28:59,884 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:28:59,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 01:29:00,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:29:00,085 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:29:00,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:29:00,086 INFO L85 PathProgramCache]: Analyzing trace with hash -441966872, now seen corresponding path program 1 times [2024-11-03 01:29:00,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:29:00,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215476911] [2024-11-03 01:29:00,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:29:00,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:29:00,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:29:00,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:29:00,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 01:29:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:29:00,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-03 01:29:00,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:29:05,491 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 299 proven. 27 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-03 01:29:05,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:29:26,502 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 123 proven. 57 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-03 01:29:26,503 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:29:26,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215476911] [2024-11-03 01:29:26,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [215476911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 01:29:26,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 01:29:26,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 41 [2024-11-03 01:29:26,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954506236] [2024-11-03 01:29:26,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 01:29:26,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-03 01:29:26,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:29:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-03 01:29:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=1271, Unknown=0, NotChecked=0, Total=1640 [2024-11-03 01:29:26,508 INFO L87 Difference]: Start difference. First operand 47 states and 63 transitions. Second operand has 41 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 40 states have internal predecessors, (74), 5 states have call successors, (22), 5 states have call predecessors, (22), 14 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-03 01:29:28,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:29:28,380 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2024-11-03 01:29:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-03 01:29:28,381 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 40 states have internal predecessors, (74), 5 states have call successors, (22), 5 states have call predecessors, (22), 14 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 98 [2024-11-03 01:29:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:29:28,382 INFO L225 Difference]: With dead ends: 104 [2024-11-03 01:29:28,382 INFO L226 Difference]: Without dead ends: 0 [2024-11-03 01:29:28,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1294 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1064, Invalid=3226, Unknown=0, NotChecked=0, Total=4290 [2024-11-03 01:29:28,386 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 149 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-03 01:29:28,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 433 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-03 01:29:28,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-03 01:29:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-03 01:29:28,387 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 01:29:28,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-03 01:29:28,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 98 [2024-11-03 01:29:28,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:29:28,388 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-03 01:29:28,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 40 states have internal predecessors, (74), 5 states have call successors, (22), 5 states have call predecessors, (22), 14 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-03 01:29:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-03 01:29:28,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-03 01:29:28,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 01:29:28,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-03 01:29:28,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:29:28,595 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-03 01:29:28,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-03 01:29:29,827 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 01:29:29,838 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-11-03 01:29:29,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:29:29 BoogieIcfgContainer [2024-11-03 01:29:29,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 01:29:29,850 INFO L158 Benchmark]: Toolchain (without parser) took 53955.15ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 822.1MB). Free memory was 152.0MB in the beginning and 669.7MB in the end (delta: -517.7MB). Peak memory consumption was 305.2MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,850 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 199.2MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 01:29:29,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.80ms. Allocated memory is still 199.2MB. Free memory was 152.0MB in the beginning and 137.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.79ms. Allocated memory is still 199.2MB. Free memory was 137.3MB in the beginning and 135.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,851 INFO L158 Benchmark]: Boogie Preprocessor took 43.88ms. Allocated memory is still 199.2MB. Free memory was 135.5MB in the beginning and 132.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,851 INFO L158 Benchmark]: RCFGBuilder took 359.00ms. Allocated memory is still 199.2MB. Free memory was 132.7MB in the beginning and 117.4MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,852 INFO L158 Benchmark]: TraceAbstraction took 53218.67ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 822.1MB). Free memory was 117.0MB in the beginning and 669.7MB in the end (delta: -552.7MB). Peak memory consumption was 270.6MB. Max. memory is 8.0GB. [2024-11-03 01:29:29,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 199.2MB. Free memory is still 154.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 285.80ms. Allocated memory is still 199.2MB. Free memory was 152.0MB in the beginning and 137.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.79ms. Allocated memory is still 199.2MB. Free memory was 137.3MB in the beginning and 135.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.88ms. Allocated memory is still 199.2MB. Free memory was 135.5MB in the beginning and 132.7MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 359.00ms. Allocated memory is still 199.2MB. Free memory was 132.7MB in the beginning and 117.4MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 53218.67ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 822.1MB). Free memory was 117.0MB in the beginning and 669.7MB in the end (delta: -552.7MB). Peak memory consumption was 270.6MB. 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: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 51.9s, OverallIterations: 4, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 341 mSDsluCounter, 1168 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 890 mSDsCounter, 276 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1510 IncrementalHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 276 mSolverCounterUnsat, 278 mSDtfsCounter, 1510 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 726 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1308 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, InterpolantAutomatonStates: 61, 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, 4 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 47.3s InterpolantComputationTime, 389 NumberOfCodeBlocks, 389 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 2879 SizeOfPredicates, 34 NumberOfNonLiveVariables, 646 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 3276/3360 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: 96]: Loop Invariant Derived loop invariant: (((((((((((var_1_6 == var_1_16) && ((var_1_6 < var_1_17) || (((0 == var_1_15) && (0 == var_1_13)) && (0 == var_1_14)))) && (var_1_17 == var_1_7)) && (var_1_12 == 1)) || (var_1_16 > var_1_6)) && (last_1_var_1_1 >= -1000)) && ((0 != \old(cond)) || (var_1_12 <= 1))) && (var_1_1 >= -1000)) && (((0 != \old(cond)) || (var_1_13 <= 0)) || !(var_1_12 >= 1))) && (((var_1_15 <= 0) || (0 != \old(cond))) || !(var_1_12 >= 1))) && (((var_1_14 <= 0) || (0 != \old(cond))) || !(var_1_12 >= 1))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((last_1_var_1_1 >= -1000) && (var_1_1 >= -1000)) Ensures: ((((last_1_var_1_1 >= -1000) && (0 != cond)) && (var_1_1 >= -1000)) && (((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (last_1_var_1_1 == \old(last_1_var_1_1)))) RESULT: Ultimate proved your program to be correct! [2024-11-03 01:29:29,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...