/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_amount250_file-40.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:22:55,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:22:55,477 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 08:22:55,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:22:55,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:22:55,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:22:55,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:22:55,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:22:55,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:22:55,506 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:22:55,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:22:55,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:22:55,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:22:55,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:22:55,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:22:55,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:22:55,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:22:55,511 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:22:55,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:22:55,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:22:55,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:22:55,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:22:55,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:22:55,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:22:55,513 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:22:55,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:22:55,513 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:22:55,513 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:22:55,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:22:55,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:22:55,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:22:55,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:22:55,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:22:55,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:22:55,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:22:55,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:22:55,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:22:55,515 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:22:55,516 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:22:55,516 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:22:55,516 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:22:55,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:22:55,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:22:55,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:22:55,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:22:55,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:22:55,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:22:55,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:22:55,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:22:55,727 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:22:55,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-40.i [2024-11-06 08:22:57,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:22:57,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:22:57,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-40.i [2024-11-06 08:22:57,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911fb8d4a/1032f4bd066b4f8f8824923efba3db66/FLAGbce0dc31e [2024-11-06 08:22:57,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911fb8d4a/1032f4bd066b4f8f8824923efba3db66 [2024-11-06 08:22:57,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:22:57,771 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:22:57,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:22:57,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:22:57,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:22:57,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:22:57" (1/1) ... [2024-11-06 08:22:57,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eeddfdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:57, skipping insertion in model container [2024-11-06 08:22:57,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:22:57" (1/1) ... [2024-11-06 08:22:57,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:22:57,983 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_amount250_file-40.i[916,929] [2024-11-06 08:22:58,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:22:58,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:22:58,135 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_amount250_file-40.i[916,929] [2024-11-06 08:22:58,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:22:58,246 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:22:58,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58 WrapperNode [2024-11-06 08:22:58,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:22:58,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:22:58,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:22:58,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:22:58,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,338 INFO L138 Inliner]: procedures = 27, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 335 [2024-11-06 08:22:58,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:22:58,339 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:22:58,339 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:22:58,339 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:22:58,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,369 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 08:22:58,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,382 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,398 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:22:58,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:22:58,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:22:58,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:22:58,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (1/1) ... [2024-11-06 08:22:58,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:22:58,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:22:58,434 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 08:22:58,438 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 08:22:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:22:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:22:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:22:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:22:58,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:22:58,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:22:58,596 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:22:58,598 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:23:32,699 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-06 08:23:32,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:23:32,719 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:23:32,719 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:23:32,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:23:32 BoogieIcfgContainer [2024-11-06 08:23:32,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:23:32,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:23:32,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:23:32,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:23:32,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:22:57" (1/3) ... [2024-11-06 08:23:32,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdfef05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:23:32, skipping insertion in model container [2024-11-06 08:23:32,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:58" (2/3) ... [2024-11-06 08:23:32,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdfef05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:23:32, skipping insertion in model container [2024-11-06 08:23:32,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:23:32" (3/3) ... [2024-11-06 08:23:32,733 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-40.i [2024-11-06 08:23:32,748 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:23:32,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:23:32,861 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:23:32,867 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;@79e370be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:23:32,867 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:23:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 96 states have (on average 1.5104166666666667) internal successors, (145), 97 states have internal predecessors, (145), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-06 08:23:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-06 08:23:32,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:23:32,897 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:32,897 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:23:32,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:23:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1582990948, now seen corresponding path program 1 times [2024-11-06 08:23:32,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:23:32,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [712373753] [2024-11-06 08:23:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:23:32,921 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 08:23:32,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:23:32,925 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 08:23:32,926 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 08:23:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:23:34,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:23:34,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:23:34,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 1890 proven. 0 refuted. 0 times theorem prover too weak. 2250 trivial. 0 not checked. [2024-11-06 08:23:34,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:23:34,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:23:34,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [712373753] [2024-11-06 08:23:34,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [712373753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:23:34,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:23:34,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:23:34,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356141378] [2024-11-06 08:23:34,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:23:34,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:23:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:23:34,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:23:34,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:23:34,441 INFO L87 Difference]: Start difference. First operand has 145 states, 96 states have (on average 1.5104166666666667) internal successors, (145), 97 states have internal predecessors, (145), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-06 08:23:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:23:34,492 INFO L93 Difference]: Finished difference Result 283 states and 514 transitions. [2024-11-06 08:23:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:23:34,497 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 295 [2024-11-06 08:23:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:23:34,509 INFO L225 Difference]: With dead ends: 283 [2024-11-06 08:23:34,509 INFO L226 Difference]: Without dead ends: 141 [2024-11-06 08:23:34,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 294 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 08:23:34,519 INFO L432 NwaCegarLoop]: 228 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, 228 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 08:23:34,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:23:34,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-06 08:23:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-06 08:23:34,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 93 states have internal predecessors, (136), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-06 08:23:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 228 transitions. [2024-11-06 08:23:34,583 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 228 transitions. Word has length 295 [2024-11-06 08:23:34,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:23:34,584 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 228 transitions. [2024-11-06 08:23:34,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-06 08:23:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 228 transitions. [2024-11-06 08:23:34,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-06 08:23:34,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:23:34,592 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:34,646 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 [2024-11-06 08:23:34,796 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 08:23:34,797 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:23:34,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:23:34,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1196816353, now seen corresponding path program 1 times [2024-11-06 08:23:34,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:23:34,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575812936] [2024-11-06 08:23:34,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:23:34,801 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 08:23:34,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:23:34,805 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 08:23:34,806 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 08:23:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:23:36,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 08:23:36,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:23:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 2138 proven. 132 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2024-11-06 08:23:48,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:23:49,925 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:23:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575812936] [2024-11-06 08:23:49,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575812936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:23:49,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426626953] [2024-11-06 08:23:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:23:49,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:23:49,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:23:49,947 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:23:49,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 08:23:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:23:50,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 08:23:51,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:23:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 2113 proven. 69 refuted. 0 times theorem prover too weak. 1958 trivial. 0 not checked. [2024-11-06 08:23:56,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:23:57,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426626953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:23:57,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 08:23:57,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 10 [2024-11-06 08:23:57,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156685628] [2024-11-06 08:23:57,407 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 08:23:57,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 08:23:57,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:23:57,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 08:23:57,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-06 08:23:57,413 INFO L87 Difference]: Start difference. First operand 141 states and 228 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2024-11-06 08:24:12,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:16,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:20,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:24,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:28,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:32,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:36,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:24:36,803 INFO L93 Difference]: Finished difference Result 289 states and 461 transitions. [2024-11-06 08:24:37,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-06 08:24:37,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 296 [2024-11-06 08:24:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:24:37,035 INFO L225 Difference]: With dead ends: 289 [2024-11-06 08:24:37,035 INFO L226 Difference]: Without dead ends: 151 [2024-11-06 08:24:37,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 667 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-06 08:24:37,037 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 250 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 60 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2024-11-06 08:24:37,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 913 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 447 Invalid, 7 Unknown, 0 Unchecked, 38.3s Time] [2024-11-06 08:24:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-06 08:24:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 149. [2024-11-06 08:24:37,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 99 states have (on average 1.4242424242424243) internal successors, (141), 99 states have internal predecessors, (141), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-06 08:24:37,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 233 transitions. [2024-11-06 08:24:37,062 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 233 transitions. Word has length 296 [2024-11-06 08:24:37,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:24:37,065 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 233 transitions. [2024-11-06 08:24:37,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 3 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2024-11-06 08:24:37,066 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 233 transitions. [2024-11-06 08:24:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-06 08:24:37,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:24:37,071 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:37,111 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 08:24:37,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 08:24:37,476 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:24:37,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:24:37,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:24:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1717032168, now seen corresponding path program 1 times [2024-11-06 08:24:37,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:24:37,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310069076] [2024-11-06 08:24:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:24:37,479 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 08:24:37,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:24:37,484 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 08:24:37,488 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 08:24:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:24:39,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-06 08:24:39,359 INFO L278 TraceCheckSpWp]: Computing forward predicates...