/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-29.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 07:55:07,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 07:55:07,725 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 07:55:07,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 07:55:07,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 07:55:07,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 07:55:07,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 07:55:07,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 07:55:07,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 07:55:07,770 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 07:55:07,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 07:55:07,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 07:55:07,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 07:55:07,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 07:55:07,773 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 07:55:07,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 07:55:07,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 07:55:07,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 07:55:07,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 07:55:07,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 07:55:07,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 07:55:07,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 07:55:07,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 07:55:07,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 07:55:07,781 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 07:55:07,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 07:55:07,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 07:55:07,781 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 07:55:07,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 07:55:07,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 07:55:07,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 07:55:07,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 07:55:07,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 07:55:07,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 07:55:07,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:55:07,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 07:55:07,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 07:55:07,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 07:55:07,784 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 07:55:07,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 07:55:07,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 07:55:07,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 07:55:07,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 07:55:07,786 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 07:55:07,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-03 07:55:08,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 07:55:08,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 07:55:08,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 07:55:08,054 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 07:55:08,055 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 07:55:08,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-29.i [2024-11-03 07:55:09,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 07:55:09,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 07:55:09,777 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-29.i [2024-11-03 07:55:09,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a9e25d6d/51f303e5e401464db72017694cda648a/FLAGef396823e [2024-11-03 07:55:09,814 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a9e25d6d/51f303e5e401464db72017694cda648a [2024-11-03 07:55:09,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 07:55:09,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 07:55:09,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 07:55:09,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 07:55:09,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 07:55:09,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1649c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:09, skipping insertion in model container [2024-11-03 07:55:09,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 07:55:09" (1/1) ... [2024-11-03 07:55:09,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 07:55:10,072 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-29.i[916,929] [2024-11-03 07:55:10,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:55:10,174 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 07:55:10,186 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-29.i[916,929] [2024-11-03 07:55:10,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 07:55:10,252 INFO L204 MainTranslator]: Completed translation [2024-11-03 07:55:10,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10 WrapperNode [2024-11-03 07:55:10,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 07:55:10,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 07:55:10,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 07:55:10,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 07:55:10,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,321 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 246 [2024-11-03 07:55:10,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 07:55:10,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 07:55:10,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 07:55:10,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 07:55:10,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,357 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 07:55:10,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 07:55:10,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 07:55:10,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 07:55:10,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 07:55:10,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (1/1) ... [2024-11-03 07:55:10,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 07:55:10,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 07:55:10,442 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 07:55:10,446 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 07:55:10,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 07:55:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 07:55:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 07:55:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 07:55:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 07:55:10,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 07:55:10,605 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 07:55:10,607 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 07:55:23,848 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-03 07:55:23,848 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 07:55:23,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 07:55:23,871 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 07:55:23,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:55:23 BoogieIcfgContainer [2024-11-03 07:55:23,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 07:55:23,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 07:55:23,876 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 07:55:23,879 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 07:55:23,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 07:55:09" (1/3) ... [2024-11-03 07:55:23,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3f42f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:55:23, skipping insertion in model container [2024-11-03 07:55:23,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 07:55:10" (2/3) ... [2024-11-03 07:55:23,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3f42f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 07:55:23, skipping insertion in model container [2024-11-03 07:55:23,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 07:55:23" (3/3) ... [2024-11-03 07:55:23,883 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-29.i [2024-11-03 07:55:23,899 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 07:55:23,899 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 07:55:23,965 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 07:55:23,970 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;@778b1c74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 07:55:23,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 07:55:23,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 68 states have internal predecessors, (93), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 07:55:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-03 07:55:23,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:55:23,993 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:23,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:55:23,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:55:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1796936142, now seen corresponding path program 1 times [2024-11-03 07:55:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:55:24,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233656555] [2024-11-03 07:55:24,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:55:24,011 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 07:55:24,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:55:24,014 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 07:55:24,016 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 07:55:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:55:25,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 07:55:25,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:55:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 914 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2024-11-03 07:55:25,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:55:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 14 proven. 60 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2024-11-03 07:55:27,349 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:55:27,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233656555] [2024-11-03 07:55:27,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1233656555] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 07:55:27,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 07:55:27,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-03 07:55:27,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730342510] [2024-11-03 07:55:27,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 07:55:27,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 07:55:27,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:55:27,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 07:55:27,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 07:55:27,384 INFO L87 Difference]: Start difference. First operand has 108 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 68 states have internal predecessors, (93), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-03 07:55:27,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:55:27,432 INFO L93 Difference]: Finished difference Result 209 states and 370 transitions. [2024-11-03 07:55:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 07:55:27,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 240 [2024-11-03 07:55:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:55:27,444 INFO L225 Difference]: With dead ends: 209 [2024-11-03 07:55:27,446 INFO L226 Difference]: Without dead ends: 104 [2024-11-03 07:55:27,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 478 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 07:55:27,458 INFO L432 NwaCegarLoop]: 162 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, 162 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 07:55:27,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 07:55:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-03 07:55:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-11-03 07:55:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.34375) internal successors, (86), 64 states have internal predecessors, (86), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 07:55:27,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 162 transitions. [2024-11-03 07:55:27,507 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 162 transitions. Word has length 240 [2024-11-03 07:55:27,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:55:27,508 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 162 transitions. [2024-11-03 07:55:27,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-03 07:55:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 162 transitions. [2024-11-03 07:55:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-03 07:55:27,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:55:27,514 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:55:27,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-03 07:55:27,715 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 07:55:27,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:55:27,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:55:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1582029674, now seen corresponding path program 1 times [2024-11-03 07:55:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:55:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [921008330] [2024-11-03 07:55:27,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:55:27,718 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 07:55:27,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:55:27,719 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 07:55:27,721 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 07:55:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:55:28,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 07:55:28,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 07:55:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-03 07:55:41,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 07:55:46,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-03 07:55:46,104 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 07:55:46,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [921008330] [2024-11-03 07:55:46,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [921008330] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 07:55:46,105 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 07:55:46,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 07:55:46,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978536543] [2024-11-03 07:55:46,105 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 07:55:46,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 07:55:46,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 07:55:46,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 07:55:46,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 07:55:46,110 INFO L87 Difference]: Start difference. First operand 104 states and 162 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-03 07:55:52,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:55:56,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:00,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:04,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:08,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:13,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:17,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:21,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:25,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:29,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:33,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 07:56:33,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 07:56:33,500 INFO L93 Difference]: Finished difference Result 307 states and 481 transitions. [2024-11-03 07:56:33,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-03 07:56:33,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 240 [2024-11-03 07:56:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 07:56:33,648 INFO L225 Difference]: With dead ends: 307 [2024-11-03 07:56:33,648 INFO L226 Difference]: Without dead ends: 206 [2024-11-03 07:56:33,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-03 07:56:33,651 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 154 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 78 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.9s IncrementalHoareTripleChecker+Time [2024-11-03 07:56:33,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 680 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 117 Invalid, 11 Unknown, 0 Unchecked, 46.9s Time] [2024-11-03 07:56:33,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-03 07:56:33,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 176. [2024-11-03 07:56:33,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 97 states have (on average 1.2474226804123711) internal successors, (121), 97 states have internal predecessors, (121), 76 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-03 07:56:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 273 transitions. [2024-11-03 07:56:33,727 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 273 transitions. Word has length 240 [2024-11-03 07:56:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 07:56:33,728 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 273 transitions. [2024-11-03 07:56:33,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-03 07:56:33,729 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 273 transitions. [2024-11-03 07:56:33,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-03 07:56:33,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 07:56:33,733 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:56:33,789 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 07:56:33,941 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 07:56:33,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 07:56:33,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 07:56:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash -797970578, now seen corresponding path program 1 times [2024-11-03 07:56:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 07:56:33,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781850780] [2024-11-03 07:56:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 07:56:33,944 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 07:56:33,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-03 07:56:33,945 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 07:56:33,947 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 07:56:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 07:56:35,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-03 07:56:35,049 INFO L278 TraceCheckSpWp]: Computing forward predicates...