/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-26.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:54:36,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:54:36,889 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 07:54:36,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:54:36,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:54:36,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:54:36,923 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:54:36,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:54:36,924 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:54:36,924 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:54:36,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:54:36,925 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:54:36,925 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:54:36,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:54:36,926 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:54:36,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:54:36,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:54:36,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:54:36,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:54:36,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:54:36,929 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:54:36,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:54:36,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:54:36,932 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:54:36,932 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:54:36,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:54:36,932 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:54:36,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:54:36,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:54:36,933 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:54:36,934 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:54:36,934 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:54:36,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:54:36,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:54:36,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:54:36,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:54:36,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:54:36,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:54:36,936 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:54:36,936 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:54:36,936 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:54:36,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:54:36,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:54:36,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:54:36,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:54:37,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:54:37,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:54:37,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:54:37,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:54:37,174 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:54:37,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2024-11-03 07:54:38,765 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:54:38,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:54:38,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2024-11-03 07:54:38,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf6b1929/d06e69d67bf04655bb23ea191d5327ad/FLAG16f1debda [2024-11-03 07:54:38,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf6b1929/d06e69d67bf04655bb23ea191d5327ad [2024-11-03 07:54:38,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:54:38,994 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:54:38,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:54:38,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:54:38,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:54:39,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:54:38" (1/1) ... [2024-11-03 07:54:39,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf6622c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39, skipping insertion in model container [2024-11-03 07:54:39,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:54:38" (1/1) ... [2024-11-03 07:54:39,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:54:39,183 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-26.i[916,929] [2024-11-03 07:54:39,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:54:39,288 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:54:39,299 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-26.i[916,929] [2024-11-03 07:54:39,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:54:39,409 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:54:39,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39 WrapperNode [2024-11-03 07:54:39,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:54:39,411 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:54:39,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:54:39,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:54:39,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,428 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,455 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2024-11-03 07:54:39,455 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:54:39,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:54:39,456 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:54:39,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:54:39,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,487 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 07:54:39,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:54:39,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:54:39,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:54:39,518 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:54:39,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (1/1) ... [2024-11-03 07:54:39,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:54:39,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:54:39,564 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 07:54:39,567 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 07:54:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:54:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:54:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:54:39,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:54:39,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:54:39,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:54:39,705 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:54:39,707 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:54:40,342 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-03 07:54:40,342 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:54:40,359 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:54:40,360 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:54:40,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:54:40 BoogieIcfgContainer [2024-11-03 07:54:40,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:54:40,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:54:40,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:54:40,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:54:40,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:54:38" (1/3) ... [2024-11-03 07:54:40,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb24675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:54:40, skipping insertion in model container [2024-11-03 07:54:40,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:54:39" (2/3) ... [2024-11-03 07:54:40,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb24675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:54:40, skipping insertion in model container [2024-11-03 07:54:40,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:54:40" (3/3) ... [2024-11-03 07:54:40,379 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-26.i [2024-11-03 07:54:40,397 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:54:40,397 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:54:40,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:54:40,485 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;@7641163e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:54:40,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:54:40,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:54:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 07:54:40,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:40,510 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:40,511 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:40,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:40,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1615266300, now seen corresponding path program 1 times [2024-11-03 07:54:40,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:40,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748947187] [2024-11-03 07:54:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:40,531 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 07:54:40,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:40,533 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 07:54:40,535 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 07:54:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:40,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:54:40,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2024-11-03 07:54:40,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 14 proven. 44 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-11-03 07:54:41,195 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748947187] [2024-11-03 07:54:41,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [748947187] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 07:54:41,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 07:54:41,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 07:54:41,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588955021] [2024-11-03 07:54:41,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 07:54:41,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:54:41,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:41,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:54:41,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:54:41,236 INFO L87 Difference]: Start difference. First operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 07:54:41,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:41,271 INFO L93 Difference]: Finished difference Result 179 states and 316 transitions. [2024-11-03 07:54:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:54:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 195 [2024-11-03 07:54:41,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:41,280 INFO L225 Difference]: With dead ends: 179 [2024-11-03 07:54:41,280 INFO L226 Difference]: Without dead ends: 89 [2024-11-03 07:54:41,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 388 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 07:54:41,286 INFO L432 NwaCegarLoop]: 139 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, 139 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 07:54:41,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:54:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-03 07:54:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-03 07:54:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:54:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 139 transitions. [2024-11-03 07:54:41,338 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 139 transitions. Word has length 195 [2024-11-03 07:54:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:41,339 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 139 transitions. [2024-11-03 07:54:41,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 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 07:54:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 139 transitions. [2024-11-03 07:54:41,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 07:54:41,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:41,343 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:41,353 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 07:54:41,544 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 07:54:41,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:41,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 198903544, now seen corresponding path program 1 times [2024-11-03 07:54:41,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069463374] [2024-11-03 07:54:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:41,547 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 07:54:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:41,548 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 07:54:41,550 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 07:54:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:41,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 07:54:41,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:42,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:42,575 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:42,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069463374] [2024-11-03 07:54:42,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1069463374] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:54:42,575 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:54:42,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 07:54:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484292728] [2024-11-03 07:54:42,576 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:54:42,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 07:54:42,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:42,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 07:54:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-03 07:54:42,582 INFO L87 Difference]: Start difference. First operand 89 states and 139 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 07:54:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:43,587 INFO L93 Difference]: Finished difference Result 423 states and 659 transitions. [2024-11-03 07:54:43,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 07:54:43,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 195 [2024-11-03 07:54:43,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:43,602 INFO L225 Difference]: With dead ends: 423 [2024-11-03 07:54:43,603 INFO L226 Difference]: Without dead ends: 337 [2024-11-03 07:54:43,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-03 07:54:43,610 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 412 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:43,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 666 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-03 07:54:43,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-03 07:54:43,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 173. [2024-11-03 07:54:43,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-03 07:54:43,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 273 transitions. [2024-11-03 07:54:43,667 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 273 transitions. Word has length 195 [2024-11-03 07:54:43,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:43,668 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 273 transitions. [2024-11-03 07:54:43,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 07:54:43,669 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 273 transitions. [2024-11-03 07:54:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 07:54:43,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:43,674 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:43,686 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 07:54:43,875 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 07:54:43,876 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:43,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:43,876 INFO L85 PathProgramCache]: Analyzing trace with hash 417758262, now seen corresponding path program 1 times [2024-11-03 07:54:43,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:43,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464371875] [2024-11-03 07:54:43,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:43,877 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 07:54:43,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:43,879 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 07:54:43,880 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 07:54:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:44,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:54:44,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:44,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1034 proven. 84 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2024-11-03 07:54:44,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-11-03 07:54:45,001 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:45,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464371875] [2024-11-03 07:54:45,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1464371875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:54:45,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:54:45,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2024-11-03 07:54:45,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902873624] [2024-11-03 07:54:45,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:54:45,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-03 07:54:45,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:45,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-03 07:54:45,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-03 07:54:45,005 INFO L87 Difference]: Start difference. First operand 173 states and 273 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (53), 3 states have call predecessors, (53), 7 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-03 07:54:46,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:46,199 INFO L93 Difference]: Finished difference Result 336 states and 511 transitions. [2024-11-03 07:54:46,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-03 07:54:46,200 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (53), 3 states have call predecessors, (53), 7 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 195 [2024-11-03 07:54:46,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:46,202 INFO L225 Difference]: With dead ends: 336 [2024-11-03 07:54:46,202 INFO L226 Difference]: Without dead ends: 166 [2024-11-03 07:54:46,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2024-11-03 07:54:46,205 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 192 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:46,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 428 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 07:54:46,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-03 07:54:46,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 96. [2024-11-03 07:54:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.2580645161290323) internal successors, (78), 62 states have internal predecessors, (78), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:54:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-03 07:54:46,240 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 195 [2024-11-03 07:54:46,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:46,240 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-03 07:54:46,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 3 states have call successors, (53), 3 states have call predecessors, (53), 7 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-03 07:54:46,241 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-03 07:54:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 07:54:46,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:46,247 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:46,260 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 (4)] Ended with exit code 0 [2024-11-03 07:54:46,448 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 07:54:46,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:46,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1619744652, now seen corresponding path program 1 times [2024-11-03 07:54:46,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:46,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722213109] [2024-11-03 07:54:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:46,450 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 07:54:46,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:46,454 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 07:54:46,455 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 07:54:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:46,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 07:54:46,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:46,981 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:47,192 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:47,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722213109] [2024-11-03 07:54:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1722213109] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:54:47,193 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:54:47,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 07:54:47,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889118379] [2024-11-03 07:54:47,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:54:47,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 07:54:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:47,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 07:54:47,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:54:47,195 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 07:54:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:47,529 INFO L93 Difference]: Finished difference Result 189 states and 273 transitions. [2024-11-03 07:54:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 07:54:47,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 197 [2024-11-03 07:54:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:47,534 INFO L225 Difference]: With dead ends: 189 [2024-11-03 07:54:47,534 INFO L226 Difference]: Without dead ends: 96 [2024-11-03 07:54:47,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 07:54:47,536 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 38 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:47,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 173 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 07:54:47,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-03 07:54:47,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-03 07:54:47,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 62 states have (on average 1.2419354838709677) internal successors, (77), 62 states have internal predecessors, (77), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:54:47,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 137 transitions. [2024-11-03 07:54:47,567 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 137 transitions. Word has length 197 [2024-11-03 07:54:47,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:47,568 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 137 transitions. [2024-11-03 07:54:47,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 07:54:47,569 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 137 transitions. [2024-11-03 07:54:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 07:54:47,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:47,571 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:47,582 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 [2024-11-03 07:54:47,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 07:54:47,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:47,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:47,773 INFO L85 PathProgramCache]: Analyzing trace with hash 31396750, now seen corresponding path program 1 times [2024-11-03 07:54:47,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:47,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891092676] [2024-11-03 07:54:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:47,774 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 07:54:47,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:47,775 INFO L229 MonitoredProcess]: Starting monitored process 6 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 07:54:47,777 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 (6)] Waiting until timeout for monitored process [2024-11-03 07:54:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:47,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 07:54:47,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:48,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:48,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 07:54:48,137 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:48,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891092676] [2024-11-03 07:54:48,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [891092676] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:54:48,137 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:54:48,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 07:54:48,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955966438] [2024-11-03 07:54:48,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:54:48,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 07:54:48,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:48,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 07:54:48,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 07:54:48,141 INFO L87 Difference]: Start difference. First operand 96 states and 137 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 07:54:48,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:48,317 INFO L93 Difference]: Finished difference Result 282 states and 405 transitions. [2024-11-03 07:54:48,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 07:54:48,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 197 [2024-11-03 07:54:48,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:48,320 INFO L225 Difference]: With dead ends: 282 [2024-11-03 07:54:48,320 INFO L226 Difference]: Without dead ends: 189 [2024-11-03 07:54:48,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 07:54:48,322 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 125 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:48,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 353 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-03 07:54:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-03 07:54:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 97. [2024-11-03 07:54:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 30 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 07:54:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2024-11-03 07:54:48,344 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 197 [2024-11-03 07:54:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:48,344 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2024-11-03 07:54:48,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 07:54:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2024-11-03 07:54:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 07:54:48,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:48,347 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:48,358 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 (6)] Ended with exit code 0 [2024-11-03 07:54:48,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 07:54:48,548 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:48,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:48,548 INFO L85 PathProgramCache]: Analyzing trace with hash -979720500, now seen corresponding path program 1 times [2024-11-03 07:54:48,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:48,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508816771] [2024-11-03 07:54:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:48,549 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 07:54:48,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:48,550 INFO L229 MonitoredProcess]: Starting monitored process 7 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 07:54:48,551 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 (7)] Waiting until timeout for monitored process [2024-11-03 07:54:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:48,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 07:54:48,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:49,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 396 proven. 225 refuted. 0 times theorem prover too weak. 1119 trivial. 0 not checked. [2024-11-03 07:54:49,752 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:50,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-03 07:54:50,666 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508816771] [2024-11-03 07:54:50,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1508816771] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:54:50,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:54:50,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 17 [2024-11-03 07:54:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140294934] [2024-11-03 07:54:50,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:54:50,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 07:54:50,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 07:54:50,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2024-11-03 07:54:50,669 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (60), 5 states have call predecessors, (60), 6 states have call successors, (60) [2024-11-03 07:54:51,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:51,784 INFO L93 Difference]: Finished difference Result 240 states and 327 transitions. [2024-11-03 07:54:51,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-03 07:54:51,785 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (60), 5 states have call predecessors, (60), 6 states have call successors, (60) Word has length 197 [2024-11-03 07:54:51,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:51,787 INFO L225 Difference]: With dead ends: 240 [2024-11-03 07:54:51,787 INFO L226 Difference]: Without dead ends: 146 [2024-11-03 07:54:51,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 376 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=185, Invalid=415, Unknown=0, NotChecked=0, Total=600 [2024-11-03 07:54:51,789 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 150 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:51,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 294 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 07:54:51,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-03 07:54:51,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2024-11-03 07:54:51,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.1666666666666667) internal successors, (112), 97 states have internal predecessors, (112), 34 states have call successors, (34), 8 states have call predecessors, (34), 8 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-03 07:54:51,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 180 transitions. [2024-11-03 07:54:51,836 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 180 transitions. Word has length 197 [2024-11-03 07:54:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:51,837 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 180 transitions. [2024-11-03 07:54:51,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (59), 4 states have call predecessors, (59), 7 states have return successors, (60), 5 states have call predecessors, (60), 6 states have call successors, (60) [2024-11-03 07:54:51,838 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 180 transitions. [2024-11-03 07:54:51,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 07:54:51,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:51,840 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:51,852 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 (7)] Forceful destruction successful, exit code 0 [2024-11-03 07:54:52,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 07:54:52,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:52,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1357556626, now seen corresponding path program 1 times [2024-11-03 07:54:52,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:52,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110206764] [2024-11-03 07:54:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:52,042 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 07:54:52,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:52,045 INFO L229 MonitoredProcess]: Starting monitored process 8 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 07:54:52,046 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 (8)] Waiting until timeout for monitored process [2024-11-03 07:54:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:52,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 07:54:52,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:54:52,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 857 proven. 33 refuted. 0 times theorem prover too weak. 850 trivial. 0 not checked. [2024-11-03 07:54:52,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:54:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 54 proven. 33 refuted. 0 times theorem prover too weak. 1653 trivial. 0 not checked. [2024-11-03 07:54:53,869 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:54:53,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110206764] [2024-11-03 07:54:53,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2110206764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 07:54:53,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 07:54:53,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-03 07:54:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435505766] [2024-11-03 07:54:53,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 07:54:53,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 07:54:53,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:54:53,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 07:54:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-03 07:54:53,870 INFO L87 Difference]: Start difference. First operand 139 states and 180 transitions. Second operand has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2024-11-03 07:54:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:54:54,780 INFO L93 Difference]: Finished difference Result 283 states and 364 transitions. [2024-11-03 07:54:54,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 07:54:54,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) Word has length 197 [2024-11-03 07:54:54,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:54:54,792 INFO L225 Difference]: With dead ends: 283 [2024-11-03 07:54:54,792 INFO L226 Difference]: Without dead ends: 147 [2024-11-03 07:54:54,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 381 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-03 07:54:54,794 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 295 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-03 07:54:54,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 341 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-03 07:54:54,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-03 07:54:54,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 143. [2024-11-03 07:54:54,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 100 states have internal predecessors, (114), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-03 07:54:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 182 transitions. [2024-11-03 07:54:54,824 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 182 transitions. Word has length 197 [2024-11-03 07:54:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:54:54,825 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 182 transitions. [2024-11-03 07:54:54,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.333333333333333) internal successors, (88), 12 states have internal predecessors, (88), 4 states have call successors, (60), 3 states have call predecessors, (60), 5 states have return successors, (60), 4 states have call predecessors, (60), 4 states have call successors, (60) [2024-11-03 07:54:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 182 transitions. [2024-11-03 07:54:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 07:54:54,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:54:54,827 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:54:54,839 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 (8)] Ended with exit code 0 [2024-11-03 07:54:55,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 07:54:55,032 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:54:55,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:54:55,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1576411344, now seen corresponding path program 1 times [2024-11-03 07:54:55,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:54:55,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300860954] [2024-11-03 07:54:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:54:55,033 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 07:54:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:54:55,034 INFO L229 MonitoredProcess]: Starting monitored process 9 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 07:54:55,035 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 (9)] Waiting until timeout for monitored process [2024-11-03 07:54:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:54:55,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-03 07:54:55,252 INFO L278 TraceCheckSpWp]: Computing forward predicates...