/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-b75d321-m [2024-11-03 08:00:40,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 08:00:40,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 08:00:40,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 08:00:40,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 08:00:40,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 08:00:40,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 08:00:40,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 08:00:40,176 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 08:00:40,177 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 08:00:40,177 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 08:00:40,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 08:00:40,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 08:00:40,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 08:00:40,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 08:00:40,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 08:00:40,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 08:00:40,182 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 08:00:40,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 08:00:40,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 08:00:40,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 08:00:40,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 08:00:40,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 08:00:40,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 08:00:40,186 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 08:00:40,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 08:00:40,186 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 08:00:40,186 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 08:00:40,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 08:00:40,187 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 08:00:40,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 08:00:40,187 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 08:00:40,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 08:00:40,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 08:00:40,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:00:40,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 08:00:40,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 08:00:40,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 08:00:40,189 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 08:00:40,189 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 08:00:40,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 08:00:40,190 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 08:00:40,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 08:00:40,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 08:00:40,190 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:00:40,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 08:00:40,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 08:00:40,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 08:00:40,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 08:00:40,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 08:00:40,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i [2024-11-03 08:00:41,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 08:00:42,062 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 08:00:42,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-70.i [2024-11-03 08:00:42,076 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc2fcf01/befbc207afed436da6a59be83fbbdb40/FLAGb9cb339c8 [2024-11-03 08:00:42,092 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc2fcf01/befbc207afed436da6a59be83fbbdb40 [2024-11-03 08:00:42,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 08:00:42,096 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 08:00:42,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 08:00:42,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 08:00:42,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 08:00:42,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3047a1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42, skipping insertion in model container [2024-11-03 08:00:42,106 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 08:00:42,312 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] [2024-11-03 08:00:42,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:00:42,412 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 08:00:42,421 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] [2024-11-03 08:00:42,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:00:42,499 INFO L204 MainTranslator]: Completed translation [2024-11-03 08:00:42,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42 WrapperNode [2024-11-03 08:00:42,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 08:00:42,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 08:00:42,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 08:00:42,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 08:00:42,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,555 INFO L138 Inliner]: procedures = 27, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 216 [2024-11-03 08:00:42,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 08:00:42,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 08:00:42,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 08:00:42,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 08:00:42,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,598 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-03 08:00:42,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,599 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,611 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,624 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 08:00:42,625 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 08:00:42,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 08:00:42,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 08:00:42,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (1/1) ... [2024-11-03 08:00:42,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:00:42,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 08:00:42,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-03 08:00:42,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-03 08:00:42,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 08:00:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 08:00:42,692 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 08:00:42,692 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 08:00:42,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 08:00:42,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 08:00:42,807 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 08:00:42,809 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 08:00:47,231 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-03 08:00:47,231 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 08:00:47,248 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 08:00:47,249 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 08:00:47,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:00:47 BoogieIcfgContainer [2024-11-03 08:00:47,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 08:00:47,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 08:00:47,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 08:00:47,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 08:00:47,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:00:42" (1/3) ... [2024-11-03 08:00:47,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfdcff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:00:47, skipping insertion in model container [2024-11-03 08:00:47,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:00:42" (2/3) ... [2024-11-03 08:00:47,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cfdcff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:00:47, skipping insertion in model container [2024-11-03 08:00:47,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:00:47" (3/3) ... [2024-11-03 08:00:47,259 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-70.i [2024-11-03 08:00:47,276 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 08:00:47,276 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 08:00:47,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 08:00:47,366 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;@5e9dd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 08:00:47,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 08:00:47,371 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) [2024-11-03 08:00:47,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-03 08:00:47,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:00:47,388 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] [2024-11-03 08:00:47,388 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:00:47,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:00:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1956773144, now seen corresponding path program 1 times [2024-11-03 08:00:47,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:00:47,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289611678] [2024-11-03 08:00:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:00:47,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:00:47,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:00:47,410 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:00:47,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-03 08:00:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:00:47,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 08:00:47,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:00:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2024-11-03 08:00:47,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:00:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 22 proven. 42 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-03 08:00:48,470 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:00:48,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1289611678] [2024-11-03 08:00:48,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1289611678] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 08:00:48,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 08:00:48,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 08:00:48,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580573292] [2024-11-03 08:00:48,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 08:00:48,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 08:00:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:00:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 08:00:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:00:48,503 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) [2024-11-03 08:00:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:00:48,547 INFO L93 Difference]: Finished difference Result 183 states and 325 transitions. [2024-11-03 08:00:48,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 08:00:48,550 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 [2024-11-03 08:00:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:00:48,560 INFO L225 Difference]: With dead ends: 183 [2024-11-03 08:00:48,561 INFO L226 Difference]: Without dead ends: 91 [2024-11-03 08:00:48,567 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 [2024-11-03 08:00:48,572 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 [2024-11-03 08:00:48,573 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] [2024-11-03 08:00:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-03 08:00:48,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-03 08:00:48,626 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) [2024-11-03 08:00:48,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 142 transitions. [2024-11-03 08:00:48,633 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 142 transitions. Word has length 210 [2024-11-03 08:00:48,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:00:48,634 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 142 transitions. [2024-11-03 08:00:48,634 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) [2024-11-03 08:00:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions. [2024-11-03 08:00:48,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-03 08:00:48,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:00:48,643 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] [2024-11-03 08:00:48,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-03 08:00:48,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:00:48,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:00:48,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:00:48,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1072816226, now seen corresponding path program 1 times [2024-11-03 08:00:48,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:00:48,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067484306] [2024-11-03 08:00:48,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:00:48,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:00:48,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:00:48,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:00:48,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-03 08:00:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:00:49,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 08:00:49,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:00:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:00:53,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:00:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:00:55,637 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:00:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067484306] [2024-11-03 08:00:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1067484306] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:00:55,638 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:00:55,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:00:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949818756] [2024-11-03 08:00:55,638 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:00:55,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:00:55,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:00:55,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:00:55,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:00:55,642 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) [2024-11-03 08:01:00,567 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 [] [2024-11-03 08:01:04,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:01:08,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:01:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:01:08,584 INFO L93 Difference]: Finished difference Result 280 states and 442 transitions. [2024-11-03 08:01:08,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:01:08,617 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 [2024-11-03 08:01:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:01:08,621 INFO L225 Difference]: With dead ends: 280 [2024-11-03 08:01:08,621 INFO L226 Difference]: Without dead ends: 192 [2024-11-03 08:01:08,622 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 [2024-11-03 08:01:08,623 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 107 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 67 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-03 08:01:08,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 784 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2024-11-03 08:01:08,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-03 08:01:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 157. [2024-11-03 08:01:08,667 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) [2024-11-03 08:01:08,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 245 transitions. [2024-11-03 08:01:08,673 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 245 transitions. Word has length 210 [2024-11-03 08:01:08,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:01:08,674 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 245 transitions. [2024-11-03 08:01:08,674 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) [2024-11-03 08:01:08,674 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 245 transitions. [2024-11-03 08:01:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-03 08:01:08,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:01:08,681 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] [2024-11-03 08:01:08,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-03 08:01:08,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:08,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:01:08,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:01:08,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1060584807, now seen corresponding path program 1 times [2024-11-03 08:01:08,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:01:08,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357375382] [2024-11-03 08:01:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:01:08,884 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:08,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:01:08,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:01:08,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-03 08:01:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:01:09,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 08:01:09,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:01:10,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 746 proven. 75 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2024-11-03 08:01:10,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:01:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 21 proven. 75 refuted. 0 times theorem prover too weak. 2016 trivial. 0 not checked. [2024-11-03 08:01:11,346 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:01:11,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357375382] [2024-11-03 08:01:11,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [357375382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 08:01:11,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 08:01:11,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-03 08:01:11,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935379381] [2024-11-03 08:01:11,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 08:01:11,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 08:01:11,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:01:11,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 08:01:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:01:11,352 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) [2024-11-03 08:01:16,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-03 08:01:18,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2024-11-03 08:01:19,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:01:19,613 INFO L93 Difference]: Finished difference Result 351 states and 538 transitions. [2024-11-03 08:01:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 08:01:19,614 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 [2024-11-03 08:01:19,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:01:19,618 INFO L225 Difference]: With dead ends: 351 [2024-11-03 08:01:19,618 INFO L226 Difference]: Without dead ends: 263 [2024-11-03 08:01:19,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2024-11-03 08:01:19,620 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 354 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-03 08:01:19,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 473 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-03 08:01:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-03 08:01:19,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 165. [2024-11-03 08:01:19,655 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) [2024-11-03 08:01:19,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 250 transitions. [2024-11-03 08:01:19,657 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 250 transitions. Word has length 211 [2024-11-03 08:01:19,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:01:19,658 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 250 transitions. [2024-11-03 08:01:19,658 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) [2024-11-03 08:01:19,658 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 250 transitions. [2024-11-03 08:01:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-03 08:01:19,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:01:19,661 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] [2024-11-03 08:01:19,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-03 08:01:19,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:19,862 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:01:19,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:01:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 64805900, now seen corresponding path program 1 times [2024-11-03 08:01:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:01:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283000418] [2024-11-03 08:01:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:01:19,864 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:19,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:01:19,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:01:19,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-03 08:01:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:01:20,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 08:01:20,268 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:01:21,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:01:21,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:01:22,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:01:22,678 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:01:22,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283000418] [2024-11-03 08:01:22,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1283000418] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:01:22,679 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:01:22,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:01:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106941758] [2024-11-03 08:01:22,679 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:01:22,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:01:22,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:01:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:01:22,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:01:22,681 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) [2024-11-03 08:01:27,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:01:31,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 08:01:35,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:01:35,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:01:35,337 INFO L93 Difference]: Finished difference Result 453 states and 687 transitions. [2024-11-03 08:01:35,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:01:35,369 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 [2024-11-03 08:01:35,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:01:35,372 INFO L225 Difference]: With dead ends: 453 [2024-11-03 08:01:35,372 INFO L226 Difference]: Without dead ends: 361 [2024-11-03 08:01:35,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:01:35,374 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 303 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-03 08:01:35,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 908 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2024-11-03 08:01:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-03 08:01:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 272. [2024-11-03 08:01:35,438 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) [2024-11-03 08:01:35,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 417 transitions. [2024-11-03 08:01:35,440 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 417 transitions. Word has length 212 [2024-11-03 08:01:35,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:01:35,441 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 417 transitions. [2024-11-03 08:01:35,441 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) [2024-11-03 08:01:35,441 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 417 transitions. [2024-11-03 08:01:35,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-03 08:01:35,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:01:35,445 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] [2024-11-03 08:01:35,463 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 [2024-11-03 08:01:35,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:35,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:01:35,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:01:35,646 INFO L85 PathProgramCache]: Analyzing trace with hash -744540726, now seen corresponding path program 1 times [2024-11-03 08:01:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:01:35,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938777455] [2024-11-03 08:01:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:01:35,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:35,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:01:35,649 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:01:35,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-03 08:01:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:01:36,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 08:01:36,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:01:36,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:01:36,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:01:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-03 08:01:36,459 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:01:36,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938777455] [2024-11-03 08:01:36,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [938777455] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:01:36,460 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:01:36,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-03 08:01:36,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089190538] [2024-11-03 08:01:36,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:01:36,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 08:01:36,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:01:36,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 08:01:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 08:01:36,462 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) [2024-11-03 08:01:40,773 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 [] [2024-11-03 08:01:43,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 08:01:43,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:01:43,918 INFO L93 Difference]: Finished difference Result 666 states and 1029 transitions. [2024-11-03 08:01:43,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 08:01:43,923 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 [2024-11-03 08:01:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:01:43,927 INFO L225 Difference]: With dead ends: 666 [2024-11-03 08:01:43,928 INFO L226 Difference]: Without dead ends: 469 [2024-11-03 08:01:43,929 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 [2024-11-03 08:01:43,930 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 129 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-03 08:01:43,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 677 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-03 08:01:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-03 08:01:43,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 464. [2024-11-03 08:01:43,991 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) [2024-11-03 08:01:43,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 714 transitions. [2024-11-03 08:01:43,994 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 714 transitions. Word has length 212 [2024-11-03 08:01:43,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:01:43,995 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 714 transitions. [2024-11-03 08:01:43,995 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) [2024-11-03 08:01:43,996 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 714 transitions. [2024-11-03 08:01:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-03 08:01:43,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:01:43,998 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] [2024-11-03 08:01:44,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-03 08:01:44,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:44,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:01:44,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:01:44,200 INFO L85 PathProgramCache]: Analyzing trace with hash -742693684, now seen corresponding path program 1 times [2024-11-03 08:01:44,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:01:44,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079555442] [2024-11-03 08:01:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:01:44,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:01:44,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:01:44,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:01:44,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-03 08:01:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:01:44,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-03 08:01:44,960 INFO L278 TraceCheckSpWp]: Computing forward predicates...