/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-99.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 08:04:33,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 08:04:33,347 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 08:04:33,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 08:04:33,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 08:04:33,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 08:04:33,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 08:04:33,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 08:04:33,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 08:04:33,373 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 08:04:33,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 08:04:33,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 08:04:33,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 08:04:33,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 08:04:33,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 08:04:33,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 08:04:33,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 08:04:33,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 08:04:33,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 08:04:33,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 08:04:33,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 08:04:33,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 08:04:33,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 08:04:33,378 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 08:04:33,378 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 08:04:33,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 08:04:33,379 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 08:04:33,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 08:04:33,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 08:04:33,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 08:04:33,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 08:04:33,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 08:04:33,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 08:04:33,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 08:04:33,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:04:33,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 08:04:33,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 08:04:33,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 08:04:33,382 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 08:04:33,382 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 08:04:33,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 08:04:33,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 08:04:33,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 08:04:33,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 08:04:33,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:33,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 08:04:33,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 08:04:33,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 08:04:33,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 08:04:33,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 08:04:33,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-99.i [2024-11-03 08:04:35,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 08:04:35,362 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 08:04:35,363 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-99.i [2024-11-03 08:04:35,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d86a464/1cc1eca259c34b5b85fd16f336869a4b/FLAGa73c6a391 [2024-11-03 08:04:35,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d86a464/1cc1eca259c34b5b85fd16f336869a4b [2024-11-03 08:04:35,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 08:04:35,390 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 08:04:35,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 08:04:35,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 08:04:35,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 08:04:35,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@445fc325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35, skipping insertion in model container [2024-11-03 08:04:35,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 08:04:35,596 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-99.i[916,929] [2024-11-03 08:04:35,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:04:35,708 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 08:04:35,718 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-99.i[916,929] [2024-11-03 08:04:35,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 08:04:35,791 INFO L204 MainTranslator]: Completed translation [2024-11-03 08:04:35,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35 WrapperNode [2024-11-03 08:04:35,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 08:04:35,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 08:04:35,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 08:04:35,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 08:04:35,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,854 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 208 [2024-11-03 08:04:35,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 08:04:35,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 08:04:35,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 08:04:35,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 08:04:35,871 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,892 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 08:04:35,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 08:04:35,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 08:04:35,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 08:04:35,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 08:04:35,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (1/1) ... [2024-11-03 08:04:35,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 08:04:35,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 08:04:35,965 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 08:04:35,968 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 08:04:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 08:04:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 08:04:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 08:04:36,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 08:04:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 08:04:36,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 08:04:36,120 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 08:04:36,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 08:04:37,494 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-03 08:04:37,495 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 08:04:37,516 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 08:04:37,517 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 08:04:37,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:04:37 BoogieIcfgContainer [2024-11-03 08:04:37,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 08:04:37,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 08:04:37,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 08:04:37,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 08:04:37,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 08:04:35" (1/3) ... [2024-11-03 08:04:37,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b7dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:04:37, skipping insertion in model container [2024-11-03 08:04:37,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 08:04:35" (2/3) ... [2024-11-03 08:04:37,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2b7dad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 08:04:37, skipping insertion in model container [2024-11-03 08:04:37,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 08:04:37" (3/3) ... [2024-11-03 08:04:37,530 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-99.i [2024-11-03 08:04:37,548 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 08:04:37,549 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 08:04:37,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 08:04:37,624 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;@1958d72e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 08:04:37,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 08:04:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 62 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 08:04:37,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 08:04:37,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:37,646 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:37,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:37,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:37,651 INFO L85 PathProgramCache]: Analyzing trace with hash 30523677, now seen corresponding path program 1 times [2024-11-03 08:04:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:37,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049894183] [2024-11-03 08:04:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:37,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:37,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:37,668 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 08:04:37,670 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 08:04:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:38,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 08:04:38,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 524 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-03 08:04:38,158 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:38,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 14 proven. 34 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-03 08:04:38,383 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:38,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049894183] [2024-11-03 08:04:38,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2049894183] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 08:04:38,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 08:04:38,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 08:04:38,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397009313] [2024-11-03 08:04:38,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:38,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 08:04:38,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 08:04:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 08:04:38,413 INFO L87 Difference]: Start difference. First operand has 89 states, 61 states have (on average 1.4754098360655739) internal successors, (90), 62 states have internal predecessors, (90), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-03 08:04:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:38,445 INFO L93 Difference]: Finished difference Result 171 states and 299 transitions. [2024-11-03 08:04:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 08:04:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 165 [2024-11-03 08:04:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:38,459 INFO L225 Difference]: With dead ends: 171 [2024-11-03 08:04:38,459 INFO L226 Difference]: Without dead ends: 85 [2024-11-03 08:04:38,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 328 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 08:04:38,466 INFO L432 NwaCegarLoop]: 132 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, 132 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 08:04:38,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 08:04:38,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-03 08:04:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-03 08:04:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 58 states have internal predecessors, (82), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 08:04:38,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 132 transitions. [2024-11-03 08:04:38,514 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 132 transitions. Word has length 165 [2024-11-03 08:04:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:38,514 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 132 transitions. [2024-11-03 08:04:38,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-03 08:04:38,515 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 132 transitions. [2024-11-03 08:04:38,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-03 08:04:38,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:38,520 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:38,533 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 08:04:38,720 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 08:04:38,721 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:38,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:38,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1247852466, now seen corresponding path program 1 times [2024-11-03 08:04:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:38,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031803832] [2024-11-03 08:04:38,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:38,723 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 08:04:38,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:38,725 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 08:04:38,729 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 08:04:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:39,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 08:04:39,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:40,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:40,860 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031803832] [2024-11-03 08:04:40,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1031803832] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:04:40,860 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:04:40,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:04:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656999500] [2024-11-03 08:04:40,861 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:40,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:04:40,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:40,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:04:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:04:40,867 INFO L87 Difference]: Start difference. First operand 85 states and 132 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:42,688 INFO L93 Difference]: Finished difference Result 250 states and 391 transitions. [2024-11-03 08:04:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:04:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 166 [2024-11-03 08:04:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:42,707 INFO L225 Difference]: With dead ends: 250 [2024-11-03 08:04:42,707 INFO L226 Difference]: Without dead ends: 168 [2024-11-03 08:04:42,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:04:42,712 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 137 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:42,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 648 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-03 08:04:42,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-03 08:04:42,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 132. [2024-11-03 08:04:42,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 08:04:42,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 203 transitions. [2024-11-03 08:04:42,749 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 203 transitions. Word has length 166 [2024-11-03 08:04:42,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:42,750 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 203 transitions. [2024-11-03 08:04:42,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:42,751 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 203 transitions. [2024-11-03 08:04:42,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-03 08:04:42,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:42,753 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:42,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-03 08:04:42,957 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 08:04:42,958 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:42,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash -496221856, now seen corresponding path program 1 times [2024-11-03 08:04:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:42,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845870215] [2024-11-03 08:04:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:42,959 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 08:04:42,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:42,961 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 08:04:42,963 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 08:04:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:43,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 08:04:43,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:43,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:43,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:44,156 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:44,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845870215] [2024-11-03 08:04:44,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1845870215] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:04:44,157 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:04:44,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:04:44,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310995688] [2024-11-03 08:04:44,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:44,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:04:44,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:44,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:04:44,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:04:44,160 INFO L87 Difference]: Start difference. First operand 132 states and 203 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:45,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:45,993 INFO L93 Difference]: Finished difference Result 250 states and 390 transitions. [2024-11-03 08:04:46,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:04:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 167 [2024-11-03 08:04:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:46,007 INFO L225 Difference]: With dead ends: 250 [2024-11-03 08:04:46,007 INFO L226 Difference]: Without dead ends: 168 [2024-11-03 08:04:46,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:04:46,010 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 97 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:46,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 751 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-03 08:04:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-03 08:04:46,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 133. [2024-11-03 08:04:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 08:04:46,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 204 transitions. [2024-11-03 08:04:46,041 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 204 transitions. Word has length 167 [2024-11-03 08:04:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:46,041 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 204 transitions. [2024-11-03 08:04:46,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 204 transitions. [2024-11-03 08:04:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-03 08:04:46,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:46,044 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:46,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-11-03 08:04:46,245 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 08:04:46,246 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:46,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:46,246 INFO L85 PathProgramCache]: Analyzing trace with hash 929300163, now seen corresponding path program 1 times [2024-11-03 08:04:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247015184] [2024-11-03 08:04:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:46,247 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 08:04:46,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:46,250 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 08:04:46,252 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 08:04:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:46,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 08:04:46,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:47,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:47,565 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:47,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247015184] [2024-11-03 08:04:47,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1247015184] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:04:47,566 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:04:47,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 08:04:47,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977823639] [2024-11-03 08:04:47,566 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:47,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 08:04:47,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:47,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 08:04:47,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 08:04:47,568 INFO L87 Difference]: Start difference. First operand 133 states and 204 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:48,703 INFO L93 Difference]: Finished difference Result 250 states and 389 transitions. [2024-11-03 08:04:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 08:04:48,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 168 [2024-11-03 08:04:48,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:48,715 INFO L225 Difference]: With dead ends: 250 [2024-11-03 08:04:48,715 INFO L226 Difference]: Without dead ends: 168 [2024-11-03 08:04:48,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 08:04:48,717 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 140 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:48,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 548 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-03 08:04:48,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-03 08:04:48,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 134. [2024-11-03 08:04:48,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 81 states have internal predecessors, (105), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 08:04:48,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 205 transitions. [2024-11-03 08:04:48,740 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 205 transitions. Word has length 168 [2024-11-03 08:04:48,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:48,755 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 205 transitions. [2024-11-03 08:04:48,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 205 transitions. [2024-11-03 08:04:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-03 08:04:48,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:48,758 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:48,774 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 08:04:48,959 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 08:04:48,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:48,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:48,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1352001989, now seen corresponding path program 1 times [2024-11-03 08:04:48,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:48,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563032790] [2024-11-03 08:04:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:48,960 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 08:04:48,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:48,963 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 08:04:48,964 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 08:04:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:49,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 08:04:49,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:49,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2024-11-03 08:04:49,397 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:49,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 69 proven. 3 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2024-11-03 08:04:49,622 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:49,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563032790] [2024-11-03 08:04:49,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [563032790] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 08:04:49,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 08:04:49,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 13 [2024-11-03 08:04:49,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086580527] [2024-11-03 08:04:49,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:49,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 08:04:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 08:04:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-03 08:04:49,624 INFO L87 Difference]: Start difference. First operand 134 states and 205 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-03 08:04:51,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:51,274 INFO L93 Difference]: Finished difference Result 319 states and 474 transitions. [2024-11-03 08:04:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 08:04:51,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 168 [2024-11-03 08:04:51,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:51,277 INFO L225 Difference]: With dead ends: 319 [2024-11-03 08:04:51,278 INFO L226 Difference]: Without dead ends: 237 [2024-11-03 08:04:51,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2024-11-03 08:04:51,279 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 369 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:51,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 701 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-03 08:04:51,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-03 08:04:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 160. [2024-11-03 08:04:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 104 states have internal predecessors, (131), 50 states have call successors, (50), 5 states have call predecessors, (50), 5 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 08:04:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 231 transitions. [2024-11-03 08:04:51,316 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 231 transitions. Word has length 168 [2024-11-03 08:04:51,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:51,320 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 231 transitions. [2024-11-03 08:04:51,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-03 08:04:51,320 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 231 transitions. [2024-11-03 08:04:51,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-03 08:04:51,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:51,325 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:51,337 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 [2024-11-03 08:04:51,526 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 08:04:51,526 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:51,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:51,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1616513376, now seen corresponding path program 1 times [2024-11-03 08:04:51,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:51,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478867874] [2024-11-03 08:04:51,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:51,527 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 08:04:51,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:51,529 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 08:04:51,530 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 08:04:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:51,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 08:04:51,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 08:04:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:52,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 08:04:52,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 08:04:52,289 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 08:04:52,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478867874] [2024-11-03 08:04:52,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [478867874] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 08:04:52,289 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 08:04:52,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2024-11-03 08:04:52,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198443243] [2024-11-03 08:04:52,289 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 08:04:52,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 08:04:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 08:04:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 08:04:52,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 08:04:52,293 INFO L87 Difference]: Start difference. First operand 160 states and 231 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 08:04:52,861 INFO L93 Difference]: Finished difference Result 470 states and 683 transitions. [2024-11-03 08:04:52,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 08:04:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 169 [2024-11-03 08:04:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 08:04:52,865 INFO L225 Difference]: With dead ends: 470 [2024-11-03 08:04:52,865 INFO L226 Difference]: Without dead ends: 366 [2024-11-03 08:04:52,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 08:04:52,866 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 130 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-03 08:04:52,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 336 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-03 08:04:52,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-03 08:04:52,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 260. [2024-11-03 08:04:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 176 states have (on average 1.2840909090909092) internal successors, (226), 176 states have internal predecessors, (226), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-03 08:04:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2024-11-03 08:04:52,912 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 376 transitions. Word has length 169 [2024-11-03 08:04:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 08:04:52,913 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 376 transitions. [2024-11-03 08:04:52,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-03 08:04:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 376 transitions. [2024-11-03 08:04:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-03 08:04:52,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 08:04:52,915 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:52,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-03 08:04:53,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 08:04:53,116 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 08:04:53,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 08:04:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash -813187261, now seen corresponding path program 1 times [2024-11-03 08:04:53,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 08:04:53,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [729718697] [2024-11-03 08:04:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 08:04:53,117 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 08:04:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 08:04:53,118 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-03 08:04:53,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-03 08:04:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 08:04:53,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-03 08:04:53,383 INFO L278 TraceCheckSpWp]: Computing forward predicates...