/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:03:51,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:03:51,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 08:03:51,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:03:51,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:03:51,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:03:51,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:03:51,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:03:51,497 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:03:51,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:03:51,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:03:51,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:03:51,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:03:51,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:03:51,499 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:03:51,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:03:51,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:03:51,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:03:51,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:03:51,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:03:51,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:03:51,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:03:51,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:03:51,502 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:03:51,503 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:03:51,503 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:03:51,503 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:03:51,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:03:51,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:03:51,504 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:03:51,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:03:51,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:03:51,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:03:51,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:03:51,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:03:51,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:03:51,506 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:03:51,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:03:51,506 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:03:51,506 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:03:51,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:03:51,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:03:51,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:03:51,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:03:51,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:03:51,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:03:51,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:03:51,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:03:51,788 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:03:51,788 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:03:51,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-06 08:03:53,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:03:53,512 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:03:53,513 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-22.i [2024-11-06 08:03:53,523 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35563f21d/3b42ddfb9a3e48c3864f57cd97a851df/FLAGe19aaeb8a [2024-11-06 08:03:53,871 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35563f21d/3b42ddfb9a3e48c3864f57cd97a851df [2024-11-06 08:03:53,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:03:53,875 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:03:53,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:03:53,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:03:53,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:03:53,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:03:53" (1/1) ... [2024-11-06 08:03:53,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b2c156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:53, skipping insertion in model container [2024-11-06 08:03:53,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:03:53" (1/1) ... [2024-11-06 08:03:53,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:03:54,061 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-22.i[916,929] [2024-11-06 08:03:54,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:03:54,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:03:54,182 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-22.i[916,929] [2024-11-06 08:03:54,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:03:54,257 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:03:54,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54 WrapperNode [2024-11-06 08:03:54,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:03:54,259 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:03:54,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:03:54,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:03:54,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,313 INFO L138 Inliner]: procedures = 27, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 211 [2024-11-06 08:03:54,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:03:54,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:03:54,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:03:54,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:03:54,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,334 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,359 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]. [2024-11-06 08:03:54,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:03:54,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:03:54,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:03:54,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:03:54,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (1/1) ... [2024-11-06 08:03:54,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:03:54,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:03:54,436 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) [2024-11-06 08:03:54,442 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 [2024-11-06 08:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:03:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:03:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:03:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:03:54,574 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:03:54,576 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:03:55,669 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-06 08:03:55,669 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:03:55,709 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:03:55,709 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:03:55,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:03:55 BoogieIcfgContainer [2024-11-06 08:03:55,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:03:55,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:03:55,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:03:55,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:03:55,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:03:53" (1/3) ... [2024-11-06 08:03:55,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1633de24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:03:55, skipping insertion in model container [2024-11-06 08:03:55,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:03:54" (2/3) ... [2024-11-06 08:03:55,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1633de24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:03:55, skipping insertion in model container [2024-11-06 08:03:55,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:03:55" (3/3) ... [2024-11-06 08:03:55,726 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-22.i [2024-11-06 08:03:55,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:03:55,740 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:03:55,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:03:55,819 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;@333fbc3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:03:55,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:03:55,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-06 08:03:55,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-06 08:03:55,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:03:55,844 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:03:55,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:03:55,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:03:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1843546310, now seen corresponding path program 1 times [2024-11-06 08:03:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:03:55,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340716644] [2024-11-06 08:03:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:03:55,869 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 [2024-11-06 08:03:55,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:03:55,874 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) [2024-11-06 08:03:55,878 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 [2024-11-06 08:03:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:03:56,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:03:56,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:03:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 1156 trivial. 0 not checked. [2024-11-06 08:03:56,263 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:03:56,266 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:03:56,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340716644] [2024-11-06 08:03:56,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340716644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:03:56,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:03:56,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:03:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471612396] [2024-11-06 08:03:56,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:03:56,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:03:56,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:03:56,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:03:56,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:03:56,299 INFO L87 Difference]: Start difference. First operand has 88 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 55 states have internal predecessors, (76), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-06 08:03:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:03:56,332 INFO L93 Difference]: Finished difference Result 169 states and 301 transitions. [2024-11-06 08:03:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:03:56,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 194 [2024-11-06 08:03:56,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:03:56,341 INFO L225 Difference]: With dead ends: 169 [2024-11-06 08:03:56,341 INFO L226 Difference]: Without dead ends: 84 [2024-11-06 08:03:56,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:03:56,348 INFO L432 NwaCegarLoop]: 131 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, 131 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 [2024-11-06 08:03:56,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:03:56,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-06 08:03:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-06 08:03:56,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 51 states have internal predecessors, (69), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-06 08:03:56,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 131 transitions. [2024-11-06 08:03:56,396 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 131 transitions. Word has length 194 [2024-11-06 08:03:56,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:03:56,396 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 131 transitions. [2024-11-06 08:03:56,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-06 08:03:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions. [2024-11-06 08:03:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-06 08:03:56,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:03:56,401 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:03:56,413 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 (2)] Forceful destruction successful, exit code 0 [2024-11-06 08:03:56,602 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 [2024-11-06 08:03:56,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:03:56,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:03:56,604 INFO L85 PathProgramCache]: Analyzing trace with hash -850663032, now seen corresponding path program 1 times [2024-11-06 08:03:56,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:03:56,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431768448] [2024-11-06 08:03:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:03:56,605 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 [2024-11-06 08:03:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:03:56,610 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) [2024-11-06 08:03:56,611 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 [2024-11-06 08:03:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:03:56,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:03:56,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:03:57,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-06 08:03:57,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:03:57,608 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:03:57,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431768448] [2024-11-06 08:03:57,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431768448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:03:57,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:03:57,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 08:03:57,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568338515] [2024-11-06 08:03:57,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:03:57,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:03:57,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:03:57,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:03:57,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:03:57,612 INFO L87 Difference]: Start difference. First operand 84 states and 131 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:03:59,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:03:59,328 INFO L93 Difference]: Finished difference Result 268 states and 420 transitions. [2024-11-06 08:03:59,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 08:03:59,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 194 [2024-11-06 08:03:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:03:59,347 INFO L225 Difference]: With dead ends: 268 [2024-11-06 08:03:59,347 INFO L226 Difference]: Without dead ends: 187 [2024-11-06 08:03:59,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:03:59,349 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 142 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 08:03:59,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 493 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 08:03:59,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-06 08:03:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 162. [2024-11-06 08:03:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 97 states have (on average 1.3505154639175259) internal successors, (131), 97 states have internal predecessors, (131), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-06 08:03:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 255 transitions. [2024-11-06 08:03:59,398 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 255 transitions. Word has length 194 [2024-11-06 08:03:59,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:03:59,399 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 255 transitions. [2024-11-06 08:03:59,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:03:59,399 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 255 transitions. [2024-11-06 08:03:59,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-06 08:03:59,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:03:59,405 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:03:59,416 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 (3)] Ended with exit code 0 [2024-11-06 08:03:59,606 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 [2024-11-06 08:03:59,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:03:59,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:03:59,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1316621499, now seen corresponding path program 1 times [2024-11-06 08:03:59,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:03:59,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087463137] [2024-11-06 08:03:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:03:59,609 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 [2024-11-06 08:03:59,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:03:59,611 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) [2024-11-06 08:03:59,612 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 [2024-11-06 08:03:59,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:03:59,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:03:59,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:01,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-06 08:04:01,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:04:01,547 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:04:01,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087463137] [2024-11-06 08:04:01,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087463137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:04:01,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:04:01,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 08:04:01,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575163368] [2024-11-06 08:04:01,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:04:01,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:04:01,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:04:01,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:04:01,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:04:01,550 INFO L87 Difference]: Start difference. First operand 162 states and 255 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:03,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:04:03,181 INFO L93 Difference]: Finished difference Result 431 states and 677 transitions. [2024-11-06 08:04:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 08:04:03,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195 [2024-11-06 08:04:03,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:04:03,206 INFO L225 Difference]: With dead ends: 431 [2024-11-06 08:04:03,206 INFO L226 Difference]: Without dead ends: 272 [2024-11-06 08:04:03,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:04:03,212 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 125 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 08:04:03,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 441 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 08:04:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-06 08:04:03,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 240. [2024-11-06 08:04:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 143 states have (on average 1.3426573426573427) internal successors, (192), 143 states have internal predecessors, (192), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-06 08:04:03,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 378 transitions. [2024-11-06 08:04:03,272 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 378 transitions. Word has length 195 [2024-11-06 08:04:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:04:03,273 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 378 transitions. [2024-11-06 08:04:03,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:03,274 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 378 transitions. [2024-11-06 08:04:03,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-06 08:04:03,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:04:03,281 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:04:03,292 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 [2024-11-06 08:04:03,481 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 [2024-11-06 08:04:03,482 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:04:03,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:04:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1957277443, now seen corresponding path program 1 times [2024-11-06 08:04:03,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:04:03,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805495198] [2024-11-06 08:04:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:03,484 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 [2024-11-06 08:04:03,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:04:03,488 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) [2024-11-06 08:04:03,489 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 [2024-11-06 08:04:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:03,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:04:03,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-06 08:04:04,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:04:04,863 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:04:04,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805495198] [2024-11-06 08:04:04,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805495198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:04:04,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:04:04,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 08:04:04,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17837657] [2024-11-06 08:04:04,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:04:04,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 08:04:04,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:04:04,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 08:04:04,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 08:04:04,870 INFO L87 Difference]: Start difference. First operand 240 states and 378 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:06,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:04:06,868 INFO L93 Difference]: Finished difference Result 403 states and 633 transitions. [2024-11-06 08:04:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 08:04:06,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 195 [2024-11-06 08:04:06,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:04:06,887 INFO L225 Difference]: With dead ends: 403 [2024-11-06 08:04:06,888 INFO L226 Difference]: Without dead ends: 166 [2024-11-06 08:04:06,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:04:06,890 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 71 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-06 08:04:06,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 364 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-06 08:04:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-06 08:04:06,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 143. [2024-11-06 08:04:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 78 states have (on average 1.2564102564102564) internal successors, (98), 78 states have internal predecessors, (98), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-06 08:04:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 222 transitions. [2024-11-06 08:04:06,926 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 222 transitions. Word has length 195 [2024-11-06 08:04:06,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:04:06,926 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 222 transitions. [2024-11-06 08:04:06,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:06,927 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 222 transitions. [2024-11-06 08:04:06,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-06 08:04:06,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:04:06,929 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:04:06,939 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 [2024-11-06 08:04:07,130 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 [2024-11-06 08:04:07,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:04:07,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:04:07,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1573885918, now seen corresponding path program 1 times [2024-11-06 08:04:07,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:04:07,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642031224] [2024-11-06 08:04:07,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:07,133 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 [2024-11-06 08:04:07,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:04:07,134 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) [2024-11-06 08:04:07,136 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 [2024-11-06 08:04:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:07,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:04:07,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-06 08:04:07,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:04:07,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:04:07,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642031224] [2024-11-06 08:04:07,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642031224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:04:07,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:04:07,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 08:04:07,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510947842] [2024-11-06 08:04:07,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:04:07,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:04:07,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:04:07,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:04:07,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:04:07,847 INFO L87 Difference]: Start difference. First operand 143 states and 222 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:09,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:04:09,548 INFO L93 Difference]: Finished difference Result 334 states and 519 transitions. [2024-11-06 08:04:09,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 08:04:09,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 196 [2024-11-06 08:04:09,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:04:09,567 INFO L225 Difference]: With dead ends: 334 [2024-11-06 08:04:09,567 INFO L226 Difference]: Without dead ends: 253 [2024-11-06 08:04:09,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:04:09,568 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 160 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 08:04:09,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 435 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 08:04:09,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-06 08:04:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 223. [2024-11-06 08:04:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 126 states have (on average 1.2936507936507937) internal successors, (163), 126 states have internal predecessors, (163), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-06 08:04:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 349 transitions. [2024-11-06 08:04:09,599 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 349 transitions. Word has length 196 [2024-11-06 08:04:09,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:04:09,600 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 349 transitions. [2024-11-06 08:04:09,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:09,603 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 349 transitions. [2024-11-06 08:04:09,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-06 08:04:09,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:04:09,605 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:04:09,620 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 (6)] Forceful destruction successful, exit code 0 [2024-11-06 08:04:09,806 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 [2024-11-06 08:04:09,806 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:04:09,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:04:09,807 INFO L85 PathProgramCache]: Analyzing trace with hash -618608047, now seen corresponding path program 1 times [2024-11-06 08:04:09,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:04:09,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10718703] [2024-11-06 08:04:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:09,808 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 [2024-11-06 08:04:09,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:04:09,812 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) [2024-11-06 08:04:09,813 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 [2024-11-06 08:04:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:09,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:04:09,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 148 proven. 87 refuted. 0 times theorem prover too weak. 1625 trivial. 0 not checked. [2024-11-06 08:04:10,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:04:10,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-06 08:04:10,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:04:10,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10718703] [2024-11-06 08:04:10,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10718703] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 08:04:10,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 08:04:10,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-11-06 08:04:10,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800652570] [2024-11-06 08:04:10,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:04:10,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 08:04:10,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:04:10,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 08:04:10,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:04:10,544 INFO L87 Difference]: Start difference. First operand 223 states and 349 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:12,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:04:12,417 INFO L93 Difference]: Finished difference Result 448 states and 701 transitions. [2024-11-06 08:04:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 08:04:12,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-06 08:04:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:04:12,421 INFO L225 Difference]: With dead ends: 448 [2024-11-06 08:04:12,421 INFO L226 Difference]: Without dead ends: 287 [2024-11-06 08:04:12,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-06 08:04:12,423 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 50 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-06 08:04:12,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 400 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-06 08:04:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-06 08:04:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 263. [2024-11-06 08:04:12,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 166 states have internal predecessors, (221), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-06 08:04:12,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 407 transitions. [2024-11-06 08:04:12,453 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 407 transitions. Word has length 197 [2024-11-06 08:04:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:04:12,457 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 407 transitions. [2024-11-06 08:04:12,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-06 08:04:12,458 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 407 transitions. [2024-11-06 08:04:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-06 08:04:12,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:04:12,461 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:04:12,473 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 [2024-11-06 08:04:12,662 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 [2024-11-06 08:04:12,662 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:04:12,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:04:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash 82456531, now seen corresponding path program 1 times [2024-11-06 08:04:12,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:04:12,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575524139] [2024-11-06 08:04:12,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:12,664 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 [2024-11-06 08:04:12,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:04:12,665 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) [2024-11-06 08:04:12,666 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 [2024-11-06 08:04:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:12,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-06 08:04:12,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 839 proven. 48 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-11-06 08:04:14,705 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:04:15,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:04:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575524139] [2024-11-06 08:04:15,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575524139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:04:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57393730] [2024-11-06 08:04:15,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:15,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:04:15,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:04:15,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:04:15,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 08:04:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:15,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-06 08:04:15,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:04:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 839 proven. 48 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-11-06 08:04:17,284 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:04:17,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57393730] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:04:17,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 08:04:17,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2024-11-06 08:04:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401132120] [2024-11-06 08:04:17,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 08:04:17,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-06 08:04:17,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:04:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-06 08:04:17,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2024-11-06 08:04:17,602 INFO L87 Difference]: Start difference. First operand 263 states and 407 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-06 08:04:20,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:04:20,070 INFO L93 Difference]: Finished difference Result 509 states and 782 transitions. [2024-11-06 08:04:20,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-06 08:04:20,071 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 197 [2024-11-06 08:04:20,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:04:20,074 INFO L225 Difference]: With dead ends: 509 [2024-11-06 08:04:20,075 INFO L226 Difference]: Without dead ends: 311 [2024-11-06 08:04:20,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=269, Invalid=661, Unknown=0, NotChecked=0, Total=930 [2024-11-06 08:04:20,077 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 130 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-06 08:04:20,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 750 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-06 08:04:20,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-06 08:04:20,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 284. [2024-11-06 08:04:20,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 185 states have (on average 1.335135135135135) internal successors, (247), 185 states have internal predecessors, (247), 93 states have call successors, (93), 5 states have call predecessors, (93), 5 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-06 08:04:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 433 transitions. [2024-11-06 08:04:20,116 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 433 transitions. Word has length 197 [2024-11-06 08:04:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:04:20,117 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 433 transitions. [2024-11-06 08:04:20,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (31), 3 states have call predecessors, (31), 4 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-06 08:04:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 433 transitions. [2024-11-06 08:04:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-06 08:04:20,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:04:20,119 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:04:20,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 08:04:20,328 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 (8)] Forceful destruction successful, exit code 0 [2024-11-06 08:04:20,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,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 [2024-11-06 08:04:20,520 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:04:20,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:04:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1258151658, now seen corresponding path program 1 times [2024-11-06 08:04:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:04:20,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196715416] [2024-11-06 08:04:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:04:20,522 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 [2024-11-06 08:04:20,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:04:20,525 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2024-11-06 08:04:20,526 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 (10)] Waiting until timeout for monitored process [2024-11-06 08:04:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:04:20,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-06 08:04:20,727 INFO L278 TraceCheckSpWp]: Computing forward predicates...