/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:28:41,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:28:41,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:28:41,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:28:41,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:28:41,324 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:28:41,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:28:41,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:28:41,325 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:28:41,325 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:28:41,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:28:41,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:28:41,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:28:41,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:28:41,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:28:41,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:28:41,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:28:41,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:28:41,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:28:41,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:28:41,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:28:41,329 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:28:41,329 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:28:41,329 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:28:41,330 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:28:41,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:28:41,330 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:28:41,330 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:28:41,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:28:41,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:28:41,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:28:41,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:28:41,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:28:41,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:28:41,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:28:41,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:28:41,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:28:41,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:28:41,333 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:28:41,333 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:28:41,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:28:41,336 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:28:41,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:28:41,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:28:41,336 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:28:41,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:28:41,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:28:41,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:28:41,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:28:41,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:28:41,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i [2024-11-05 19:28:42,870 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:28:43,092 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:28:43,092 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i [2024-11-05 19:28:43,102 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d24e64b/b59a73e6b9e74f0ea1ea1e8b5264e4f3/FLAGb4b1d4226 [2024-11-05 19:28:43,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30d24e64b/b59a73e6b9e74f0ea1ea1e8b5264e4f3 [2024-11-05 19:28:43,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:28:43,133 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:28:43,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:28:43,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:28:43,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:28:43,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d510e89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43, skipping insertion in model container [2024-11-05 19:28:43,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,194 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:28:43,338 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-70.i[916,929] [2024-11-05 19:28:43,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:28:43,422 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:28:43,431 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-70.i[916,929] [2024-11-05 19:28:43,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:28:43,474 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:28:43,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43 WrapperNode [2024-11-05 19:28:43,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:28:43,476 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:28:43,476 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:28:43,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:28:43,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,513 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216 [2024-11-05 19:28:43,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:28:43,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:28:43,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:28:43,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:28:43,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,538 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]. [2024-11-05 19:28:43,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:28:43,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:28:43,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:28:43,556 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:28:43,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (1/1) ... [2024-11-05 19:28:43,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:28:43,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:28:43,597 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) [2024-11-05 19:28:43,600 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 [2024-11-05 19:28:43,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:28:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:28:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:28:43,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:28:43,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:28:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:28:43,707 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:28:43,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:28:48,251 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-05 19:28:48,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:28:48,265 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:28:48,265 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:28:48,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:28:48 BoogieIcfgContainer [2024-11-05 19:28:48,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:28:48,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:28:48,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:28:48,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:28:48,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:28:43" (1/3) ... [2024-11-05 19:28:48,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd38a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:28:48, skipping insertion in model container [2024-11-05 19:28:48,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:28:43" (2/3) ... [2024-11-05 19:28:48,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd38a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:28:48, skipping insertion in model container [2024-11-05 19:28:48,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:28:48" (3/3) ... [2024-11-05 19:28:48,275 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-70.i [2024-11-05 19:28:48,287 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:28:48,288 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:28:48,352 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:28:48,361 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;@562f03c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:28:48,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:28:48,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-05 19:28:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-05 19:28:48,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:28:48,383 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:28:48,383 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:28:48,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:28:48,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1956773144, now seen corresponding path program 1 times [2024-11-05 19:28:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:28:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1871763571] [2024-11-05 19:28:48,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:28:48,398 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 [2024-11-05 19:28:48,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:28:48,401 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) [2024-11-05 19:28:48,403 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 [2024-11-05 19:28:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:28:48,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:28:48,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:28:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2024-11-05 19:28:48,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:28:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 22 proven. 42 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-05 19:28:49,415 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:28:49,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1871763571] [2024-11-05 19:28:49,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1871763571] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:28:49,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:28:49,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:28:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264886134] [2024-11-05 19:28:49,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:28:49,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:28:49,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:28:49,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:28:49,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:28:49,443 INFO L87 Difference]: Start difference. First operand has 95 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 60 states have internal predecessors, (83), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-05 19:28:49,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:28:49,465 INFO L93 Difference]: Finished difference Result 183 states and 325 transitions. [2024-11-05 19:28:49,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:28:49,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 210 [2024-11-05 19:28:49,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:28:49,473 INFO L225 Difference]: With dead ends: 183 [2024-11-05 19:28:49,473 INFO L226 Difference]: Without dead ends: 91 [2024-11-05 19:28:49,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:28:49,478 INFO L432 NwaCegarLoop]: 142 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, 142 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 [2024-11-05 19:28:49,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:28:49,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-05 19:28:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-05 19:28:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 56 states have internal predecessors, (76), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-05 19:28:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 142 transitions. [2024-11-05 19:28:49,525 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 142 transitions. Word has length 210 [2024-11-05 19:28:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:28:49,526 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 142 transitions. [2024-11-05 19:28:49,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-05 19:28:49,526 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions. [2024-11-05 19:28:49,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-05 19:28:49,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:28:49,529 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:28:49,546 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 [2024-11-05 19:28:49,732 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 [2024-11-05 19:28:49,733 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:28:49,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:28:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1072816226, now seen corresponding path program 1 times [2024-11-05 19:28:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:28:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [892155793] [2024-11-05 19:28:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:28:49,734 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 [2024-11-05 19:28:49,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:28:49,738 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) [2024-11-05 19:28:49,740 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 [2024-11-05 19:28:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:28:50,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 19:28:50,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:28:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:28:53,002 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:28:54,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:28:54,704 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:28:54,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [892155793] [2024-11-05 19:28:54,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [892155793] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:28:54,704 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:28:54,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-05 19:28:54,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013629985] [2024-11-05 19:28:54,705 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:28:54,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 19:28:54,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:28:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 19:28:54,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-05 19:28:54,710 INFO L87 Difference]: Start difference. First operand 91 states and 142 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-05 19:28:59,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:03,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:07,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:10,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:10,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:29:10,745 INFO L93 Difference]: Finished difference Result 280 states and 442 transitions. [2024-11-05 19:29:10,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 19:29:10,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 210 [2024-11-05 19:29:10,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:29:10,781 INFO L225 Difference]: With dead ends: 280 [2024-11-05 19:29:10,781 INFO L226 Difference]: Without dead ends: 192 [2024-11-05 19:29:10,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-05 19:29:10,786 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 107 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 67 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-05 19:29:10,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 784 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 104 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2024-11-05 19:29:10,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-05 19:29:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 157. [2024-11-05 19:29:10,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 88 states have internal predecessors, (113), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-05 19:29:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 245 transitions. [2024-11-05 19:29:10,820 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 245 transitions. Word has length 210 [2024-11-05 19:29:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:29:10,821 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 245 transitions. [2024-11-05 19:29:10,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-05 19:29:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 245 transitions. [2024-11-05 19:29:10,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-05 19:29:10,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:29:10,826 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:29:10,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 19:29:11,026 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 [2024-11-05 19:29:11,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:29:11,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:29:11,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1060584807, now seen corresponding path program 1 times [2024-11-05 19:29:11,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:29:11,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1161171945] [2024-11-05 19:29:11,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:29:11,028 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 [2024-11-05 19:29:11,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:29:11,031 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) [2024-11-05 19:29:11,032 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 [2024-11-05 19:29:11,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:29:11,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 19:29:11,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:29:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 746 proven. 75 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2024-11-05 19:29:12,496 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:29:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 21 proven. 75 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2024-11-05 19:29:13,817 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:29:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1161171945] [2024-11-05 19:29:13,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1161171945] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 19:29:13,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 19:29:13,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-05 19:29:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946642463] [2024-11-05 19:29:13,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 19:29:13,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 19:29:13,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:29:13,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 19:29:13,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-05 19:29:13,820 INFO L87 Difference]: Start difference. First operand 157 states and 245 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2024-11-05 19:29:19,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-05 19:29:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:29:21,683 INFO L93 Difference]: Finished difference Result 351 states and 538 transitions. [2024-11-05 19:29:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-05 19:29:21,684 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 211 [2024-11-05 19:29:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:29:21,690 INFO L225 Difference]: With dead ends: 351 [2024-11-05 19:29:21,692 INFO L226 Difference]: Without dead ends: 263 [2024-11-05 19:29:21,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2024-11-05 19:29:21,694 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 354 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 179 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-05 19:29:21,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 473 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 445 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2024-11-05 19:29:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-05 19:29:21,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 165. [2024-11-05 19:29:21,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 94 states have internal predecessors, (118), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-05 19:29:21,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 250 transitions. [2024-11-05 19:29:21,731 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 250 transitions. Word has length 211 [2024-11-05 19:29:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:29:21,734 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 250 transitions. [2024-11-05 19:29:21,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 3 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2024-11-05 19:29:21,734 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 250 transitions. [2024-11-05 19:29:21,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-05 19:29:21,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:29:21,737 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:29:21,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-05 19:29:21,941 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 [2024-11-05 19:29:21,942 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:29:21,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:29:21,942 INFO L85 PathProgramCache]: Analyzing trace with hash 64805900, now seen corresponding path program 1 times [2024-11-05 19:29:21,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:29:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317891220] [2024-11-05 19:29:21,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:29:21,943 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 [2024-11-05 19:29:21,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:29:21,952 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) [2024-11-05 19:29:21,953 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 [2024-11-05 19:29:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:29:22,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-05 19:29:22,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:29:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:29:24,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:29:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:29:25,909 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:29:25,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317891220] [2024-11-05 19:29:25,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [317891220] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:29:25,909 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:29:25,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-05 19:29:25,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759402573] [2024-11-05 19:29:25,910 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:29:25,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-05 19:29:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:29:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-05 19:29:25,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-05 19:29:25,915 INFO L87 Difference]: Start difference. First operand 165 states and 250 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-05 19:29:30,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:34,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:38,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:40,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-05 19:29:40,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:29:40,613 INFO L93 Difference]: Finished difference Result 453 states and 687 transitions. [2024-11-05 19:29:40,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 19:29:40,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 212 [2024-11-05 19:29:40,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:29:40,649 INFO L225 Difference]: With dead ends: 453 [2024-11-05 19:29:40,649 INFO L226 Difference]: Without dead ends: 361 [2024-11-05 19:29:40,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-05 19:29:40,650 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 303 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 199 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-05 19:29:40,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 908 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 40 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-05 19:29:40,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-05 19:29:40,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 272. [2024-11-05 19:29:40,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 166 states have (on average 1.319277108433735) internal successors, (219), 166 states have internal predecessors, (219), 99 states have call successors, (99), 6 states have call predecessors, (99), 6 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-05 19:29:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions. [2024-11-05 19:29:40,706 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 212 [2024-11-05 19:29:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:29:40,706 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 417 transitions. [2024-11-05 19:29:40,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-11-05 19:29:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions. [2024-11-05 19:29:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-05 19:29:40,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:29:40,709 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:29:40,729 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 (5)] Ended with exit code 0 [2024-11-05 19:29:40,914 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 [2024-11-05 19:29:40,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:29:40,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:29:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash -744540726, now seen corresponding path program 1 times [2024-11-05 19:29:40,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:29:40,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021268767] [2024-11-05 19:29:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:29:40,916 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 [2024-11-05 19:29:40,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:29:40,918 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) [2024-11-05 19:29:40,919 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 [2024-11-05 19:29:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:29:41,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-05 19:29:41,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:29:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:29:41,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:29:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-05 19:29:42,016 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:29:42,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021268767] [2024-11-05 19:29:42,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2021268767] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:29:42,016 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:29:42,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 19:29:42,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415555739] [2024-11-05 19:29:42,016 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:29:42,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 19:29:42,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:29:42,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 19:29:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 19:29:42,018 INFO L87 Difference]: Start difference. First operand 272 states and 417 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-05 19:29:46,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:47,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-05 19:29:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:29:48,326 INFO L93 Difference]: Finished difference Result 666 states and 1029 transitions. [2024-11-05 19:29:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 19:29:48,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 212 [2024-11-05 19:29:48,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:29:48,337 INFO L225 Difference]: With dead ends: 666 [2024-11-05 19:29:48,338 INFO L226 Difference]: Without dead ends: 469 [2024-11-05 19:29:48,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-05 19:29:48,339 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 129 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-05 19:29:48,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 677 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-05 19:29:48,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-05 19:29:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 464. [2024-11-05 19:29:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 288 states have (on average 1.3333333333333333) internal successors, (384), 288 states have internal predecessors, (384), 165 states have call successors, (165), 10 states have call predecessors, (165), 10 states have return successors, (165), 165 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-05 19:29:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 714 transitions. [2024-11-05 19:29:48,399 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 714 transitions. Word has length 212 [2024-11-05 19:29:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:29:48,399 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 714 transitions. [2024-11-05 19:29:48,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-05 19:29:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 714 transitions. [2024-11-05 19:29:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-05 19:29:48,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:29:48,401 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:29:48,419 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 [2024-11-05 19:29:48,602 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 [2024-11-05 19:29:48,602 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:29:48,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:29:48,602 INFO L85 PathProgramCache]: Analyzing trace with hash -742693684, now seen corresponding path program 1 times [2024-11-05 19:29:48,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:29:48,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458268213] [2024-11-05 19:29:48,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:29:48,603 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 [2024-11-05 19:29:48,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:29:48,604 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) [2024-11-05 19:29:48,606 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 [2024-11-05 19:29:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:29:49,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-05 19:29:49,295 INFO L278 TraceCheckSpWp]: Computing forward predicates...