/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 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 08:03:28,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 08:03:28,390 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 08:03:28,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 08:03:28,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 08:03:28,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 08:03:28,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 08:03:28,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 08:03:28,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 08:03:28,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 08:03:28,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 08:03:28,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 08:03:28,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 08:03:28,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 08:03:28,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 08:03:28,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 08:03:28,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 08:03:28,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 08:03:28,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 08:03:28,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 08:03:28,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 08:03:28,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 08:03:28,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 08:03:28,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 08:03:28,428 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 08:03:28,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 08:03:28,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 08:03:28,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 08:03:28,429 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 08:03:28,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:03:28,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 08:03:28,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 08:03:28,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:03:28,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 08:03:28,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 08:03:28,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 08:03:28,675 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 08:03:28,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 08:03:28,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-89.i [2024-11-03 08:03:29,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 08:03:30,128 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 08:03:30,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-89.i [2024-11-03 08:03:30,147 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a56411f0/959e562899f148c8a1225d788a2c010b/FLAG6641c5753 [2024-11-03 08:03:30,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a56411f0/959e562899f148c8a1225d788a2c010b [2024-11-03 08:03:30,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 08:03:30,523 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 08:03:30,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 08:03:30,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 08:03:30,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 08:03:30,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30, skipping insertion in model container [2024-11-03 08:03:30,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,565 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 08:03:30,717 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_amount100_file-89.i[916,929] [2024-11-03 08:03:30,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:03:30,796 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 08:03:30,806 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_amount100_file-89.i[916,929] [2024-11-03 08:03:30,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:03:30,872 INFO L204 MainTranslator]: Completed translation [2024-11-03 08:03:30,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30 WrapperNode [2024-11-03 08:03:30,873 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 08:03:30,874 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 08:03:30,874 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 08:03:30,874 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 08:03:30,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,923 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 227 [2024-11-03 08:03:30,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 08:03:30,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 08:03:30,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 08:03:30,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 08:03:30,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,978 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 08:03:30,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:30,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 08:03:31,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 08:03:31,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 08:03:31,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 08:03:31,026 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (1/1) ... [2024-11-03 08:03:31,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:03:31,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 08:03:31,064 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 08:03:31,072 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 08:03:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 08:03:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 08:03:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 08:03:31,094 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 08:03:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 08:03:31,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 08:03:31,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 08:03:31,191 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 08:03:44,528 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-03 08:03:44,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 08:03:44,539 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 08:03:44,539 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 08:03:44,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:03:44 BoogieIcfgContainer [2024-11-03 08:03:44,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 08:03:44,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 08:03:44,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 08:03:44,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 08:03:44,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:03:30" (1/3) ... [2024-11-03 08:03:44,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77432e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:03:44, skipping insertion in model container [2024-11-03 08:03:44,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:03:30" (2/3) ... [2024-11-03 08:03:44,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77432e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:03:44, skipping insertion in model container [2024-11-03 08:03:44,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:03:44" (3/3) ... [2024-11-03 08:03:44,546 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-89.i [2024-11-03 08:03:44,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 08:03:44,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 08:03:44,606 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 08:03:44,611 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;@798c944, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 08:03:44,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 08:03:44,616 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 08:03:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-03 08:03:44,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:03:44,628 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:44,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:03:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:03:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash -725139243, now seen corresponding path program 1 times [2024-11-03 08:03:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:03:44,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048144202] [2024-11-03 08:03:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:03:44,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:03:44,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:03:44,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:03:44,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 08:03:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:03:45,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 08:03:45,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:03:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1082 proven. 0 refuted. 0 times theorem prover too weak. 1730 trivial. 0 not checked. [2024-11-03 08:03:45,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:03:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 18 proven. 56 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2024-11-03 08:03:47,440 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:03:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048144202] [2024-11-03 08:03:47,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2048144202] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 08:03:47,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 08:03:47,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 08:03:47,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962000509] [2024-11-03 08:03:47,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 08:03:47,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 08:03:47,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:03:47,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 08:03:47,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:03:47,465 INFO L87 Difference]: Start difference. First operand has 102 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-03 08:03:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:03:47,514 INFO L93 Difference]: Finished difference Result 197 states and 352 transitions. [2024-11-03 08:03:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 08:03:47,517 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 236 [2024-11-03 08:03:47,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:03:47,525 INFO L225 Difference]: With dead ends: 197 [2024-11-03 08:03:47,525 INFO L226 Difference]: Without dead ends: 98 [2024-11-03 08:03:47,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 470 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 08:03:47,534 INFO L432 NwaCegarLoop]: 153 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, 153 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 08:03:47,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 08:03:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-03 08:03:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-03 08:03:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 58 states have internal predecessors, (77), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 08:03:47,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 153 transitions. [2024-11-03 08:03:47,575 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 153 transitions. Word has length 236 [2024-11-03 08:03:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:03:47,576 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 153 transitions. [2024-11-03 08:03:47,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-03 08:03:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 153 transitions. [2024-11-03 08:03:47,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-03 08:03:47,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:03:47,580 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:47,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-03 08:03:47,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:03:47,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:03:47,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:03:47,782 INFO L85 PathProgramCache]: Analyzing trace with hash 177657809, now seen corresponding path program 1 times [2024-11-03 08:03:47,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:03:47,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376313206] [2024-11-03 08:03:47,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:03:47,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:03:47,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:03:47,789 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:03:47,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 08:03:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:03:48,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 08:03:48,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:03:50,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1333 proven. 39 refuted. 0 times theorem prover too weak. 1440 trivial. 0 not checked. [2024-11-03 08:03:50,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:03:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 72 proven. 39 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2024-11-03 08:03:53,708 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:03:53,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376313206] [2024-11-03 08:03:53,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [376313206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:03:53,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:03:53,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 08:03:53,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385706772] [2024-11-03 08:03:53,709 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:03:53,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:03:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:03:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:03:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:03:53,711 INFO L87 Difference]: Start difference. First operand 98 states and 153 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 08:04:01,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:05,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:09,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:09,271 INFO L93 Difference]: Finished difference Result 197 states and 304 transitions. [2024-11-03 08:04:09,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 08:04:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 236 [2024-11-03 08:04:09,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:09,373 INFO L225 Difference]: With dead ends: 197 [2024-11-03 08:04:09,373 INFO L226 Difference]: Without dead ends: 102 [2024-11-03 08:04:09,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 464 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-03 08:04:09,375 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 240 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 224 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:09,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 222 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 202 Invalid, 3 Unknown, 0 Unchecked, 14.9s Time] [2024-11-03 08:04:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-03 08:04:09,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2024-11-03 08:04:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 59 states have internal predecessors, (72), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 08:04:09,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 148 transitions. [2024-11-03 08:04:09,390 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 148 transitions. Word has length 236 [2024-11-03 08:04:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:09,391 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 148 transitions. [2024-11-03 08:04:09,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-03 08:04:09,391 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 148 transitions. [2024-11-03 08:04:09,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-03 08:04:09,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:09,394 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:09,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-03 08:04:09,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:09,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:09,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:09,598 INFO L85 PathProgramCache]: Analyzing trace with hash -639990641, now seen corresponding path program 1 times [2024-11-03 08:04:09,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:09,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [643661212] [2024-11-03 08:04:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:09,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:09,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:09,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:04:09,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 08:04:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:10,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 08:04:10,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 321 proven. 105 refuted. 0 times theorem prover too weak. 2386 trivial. 0 not checked. [2024-11-03 08:04:15,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:20,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 6 proven. 105 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2024-11-03 08:04:20,217 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:20,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [643661212] [2024-11-03 08:04:20,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [643661212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:04:20,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:04:20,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 08:04:20,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647539926] [2024-11-03 08:04:20,217 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:04:20,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 08:04:20,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 08:04:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:04:20,219 INFO L87 Difference]: Start difference. First operand 100 states and 148 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2024-11-03 08:04:28,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:32,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:36,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:40,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 08:04:42,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:04:42,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:42,807 INFO L93 Difference]: Finished difference Result 203 states and 298 transitions. [2024-11-03 08:04:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 08:04:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) Word has length 236 [2024-11-03 08:04:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:42,923 INFO L225 Difference]: With dead ends: 203 [2024-11-03 08:04:42,923 INFO L226 Difference]: Without dead ends: 106 [2024-11-03 08:04:42,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-03 08:04:42,924 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 43 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 14 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:42,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 315 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 257 Invalid, 4 Unknown, 0 Unchecked, 22.1s Time] [2024-11-03 08:04:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-03 08:04:42,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-11-03 08:04:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 62 states have internal predecessors, (74), 38 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 08:04:42,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 150 transitions. [2024-11-03 08:04:42,938 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 150 transitions. Word has length 236 [2024-11-03 08:04:42,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:42,939 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 150 transitions. [2024-11-03 08:04:42,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (73), 2 states have call predecessors, (73), 4 states have return successors, (74), 3 states have call predecessors, (74), 3 states have call successors, (74) [2024-11-03 08:04:42,940 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 150 transitions. [2024-11-03 08:04:42,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-03 08:04:42,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:42,943 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:42,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-03 08:04:43,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:43,144 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:43,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:43,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1024655792, now seen corresponding path program 1 times [2024-11-03 08:04:43,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:43,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906986873] [2024-11-03 08:04:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:43,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:43,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:43,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:04:43,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-03 08:04:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:44,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 08:04:44,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-03 08:04:49,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-03 08:04:53,561 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:53,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906986873] [2024-11-03 08:04:53,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [906986873] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:04:53,562 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:04:53,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:04:53,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743663196] [2024-11-03 08:04:53,562 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:53,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:04:53,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:53,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:04:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:04:53,570 INFO L87 Difference]: Start difference. First operand 104 states and 150 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-03 08:05:01,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:05:05,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:05:09,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:05:13,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:05:15,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:05:18,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:05:18,055 INFO L93 Difference]: Finished difference Result 381 states and 555 transitions. [2024-11-03 08:05:18,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:05:18,057 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 237 [2024-11-03 08:05:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:05:18,060 INFO L225 Difference]: With dead ends: 381 [2024-11-03 08:05:18,060 INFO L226 Difference]: Without dead ends: 280 [2024-11-03 08:05:18,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:05:18,063 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 164 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 77 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2024-11-03 08:05:18,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 722 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 450 Invalid, 4 Unknown, 0 Unchecked, 24.1s Time] [2024-11-03 08:05:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-03 08:05:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 201. [2024-11-03 08:05:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 118 states have (on average 1.1779661016949152) internal successors, (139), 118 states have internal predecessors, (139), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-03 08:05:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 291 transitions. [2024-11-03 08:05:18,106 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 291 transitions. Word has length 237 [2024-11-03 08:05:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:05:18,106 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 291 transitions. [2024-11-03 08:05:18,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-03 08:05:18,107 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 291 transitions. [2024-11-03 08:05:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-03 08:05:18,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:05:18,110 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:18,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0