/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_amount10_file-61.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:35:48,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:35:48,244 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:35:48,250 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:35:48,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:35:48,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:35:48,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:35:48,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:35:48,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:35:48,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:35:48,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:35:48,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:35:48,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:35:48,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:35:48,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:35:48,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:35:48,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:35:48,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:35:48,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:35:48,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:35:48,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:35:48,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:35:48,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:35:48,293 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:35:48,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:35:48,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:35:48,294 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:35:48,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:35:48,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:35:48,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:35:48,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:35:48,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:35:48,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:35:48,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:35:48,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:35:48,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:35:48,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:35:48,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:35:48,297 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:35:48,298 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:35:48,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:35:48,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:35:48,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:35:48,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:35:48,300 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:35:48,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:35:48,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:35:48,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:35:48,588 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:35:48,588 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:35:48,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2024-11-05 19:35:50,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:35:50,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:35:50,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-61.i [2024-11-05 19:35:50,370 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b777b69/9e1a799005f14fe28d22c66b31f7c6fb/FLAGad6d2704a [2024-11-05 19:35:50,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66b777b69/9e1a799005f14fe28d22c66b31f7c6fb [2024-11-05 19:35:50,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:35:50,389 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:35:50,394 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:35:50,394 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:35:50,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:35:50,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740cb1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50, skipping insertion in model container [2024-11-05 19:35:50,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:35:50,617 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_amount10_file-61.i[915,928] [2024-11-05 19:35:50,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:35:50,682 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:35:50,694 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_amount10_file-61.i[915,928] [2024-11-05 19:35:50,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:35:50,740 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:35:50,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50 WrapperNode [2024-11-05 19:35:50,742 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:35:50,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:35:50,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:35:50,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:35:50,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,787 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-05 19:35:50,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:35:50,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:35:50,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:35:50,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:35:50,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,826 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-05 19:35:50,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,845 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:35:50,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:35:50,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:35:50,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:35:50,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (1/1) ... [2024-11-05 19:35:50,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:35:50,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:35:50,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-05 19:35:50,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-05 19:35:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:35:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:35:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:35:50,913 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:35:50,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:35:50,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:35:50,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:35:50,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:35:59,917 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-05 19:35:59,918 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:35:59,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:35:59,931 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:35:59,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:59 BoogieIcfgContainer [2024-11-05 19:35:59,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:35:59,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:35:59,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:35:59,938 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:35:59,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:35:50" (1/3) ... [2024-11-05 19:35:59,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd16634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:59, skipping insertion in model container [2024-11-05 19:35:59,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:35:50" (2/3) ... [2024-11-05 19:35:59,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd16634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:35:59, skipping insertion in model container [2024-11-05 19:35:59,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:35:59" (3/3) ... [2024-11-05 19:35:59,941 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-61.i [2024-11-05 19:35:59,960 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:35:59,961 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:36:00,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:36:00,034 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;@46a03987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:36:00,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:36:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-05 19:36:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-05 19:36:00,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:36:00,047 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:36:00,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:36:00,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:36:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1621252410, now seen corresponding path program 1 times [2024-11-05 19:36:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:36:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018677478] [2024-11-05 19:36:00,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:36:00,079 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:36:00,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:36:00,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 19:36:00,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 19:36:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:36:00,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 19:36:00,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:36:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-05 19:36:00,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:36:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-05 19:36:01,401 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:36:01,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018677478] [2024-11-05 19:36:01,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2018677478] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:36:01,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:36:01,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-05 19:36:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765321890] [2024-11-05 19:36:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:36:01,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 19:36:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:36:01,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 19:36:01,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:36:01,442 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 19:36:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:36:01,469 INFO L93 Difference]: Finished difference Result 69 states and 109 transitions. [2024-11-05 19:36:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 19:36:01,472 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2024-11-05 19:36:01,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:36:01,481 INFO L225 Difference]: With dead ends: 69 [2024-11-05 19:36:01,482 INFO L226 Difference]: Without dead ends: 34 [2024-11-05 19:36:01,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 19:36:01,492 INFO L432 NwaCegarLoop]: 45 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, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 19:36:01,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 19:36:01,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-05 19:36:01,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-05 19:36:01,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-05 19:36:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-05 19:36:01,554 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 72 [2024-11-05 19:36:01,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:36:01,555 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-05 19:36:01,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-05 19:36:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-05 19:36:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-05 19:36:01,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:36:01,561 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:36:01,587 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 [2024-11-05 19:36:01,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:36:01,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:36:01,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:36:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1800826168, now seen corresponding path program 1 times [2024-11-05 19:36:01,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:36:01,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179244842] [2024-11-05 19:36:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:36:01,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:36:01,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:36:01,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 19:36:01,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 19:36:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:36:02,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-05 19:36:02,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:36:11,112 WARN L286 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:36:21,427 WARN L286 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:36:28,749 WARN L286 SmtUtils]: Spent 7.32s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:36:35,360 WARN L286 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:36:39,519 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 19.0 100.0))))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7995.0 8.0))) (.cse2 (fp.gt c_~var_1_2~0 .cse1))) (or (and (fp.geq (fp.div c_currentRoundingMode .cse0 .cse1) c_~var_1_3~0) (not .cse2)) (and (fp.geq (fp.div c_currentRoundingMode .cse0 c_~var_1_2~0) c_~var_1_3~0) .cse2)))) (= ((_ extract 7 0) (bvadd (_ bv4294967264 32) ((_ sign_extend 24) c_~var_1_4~0))) c_~var_1_1~0)) is different from false [2024-11-05 19:36:43,664 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 19.0 100.0))))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7995.0 8.0))) (.cse2 (fp.gt c_~var_1_2~0 .cse1))) (or (and (fp.geq (fp.div c_currentRoundingMode .cse0 .cse1) c_~var_1_3~0) (not .cse2)) (and (fp.geq (fp.div c_currentRoundingMode .cse0 c_~var_1_2~0) c_~var_1_3~0) .cse2)))) (= ((_ extract 7 0) (bvadd (_ bv4294967264 32) ((_ sign_extend 24) c_~var_1_4~0))) c_~var_1_1~0)) is different from true [2024-11-05 19:36:52,200 WARN L286 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:37:02,383 WARN L286 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:37:11,411 WARN L286 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:37:17,911 WARN L286 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 19:37:22,032 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 19.0 100.0))))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7995.0 8.0))) (.cse2 (fp.gt c_~var_1_2~0 .cse1))) (or (and (fp.geq (fp.div c_currentRoundingMode .cse0 .cse1) c_~var_1_3~0) (not .cse2)) (and (fp.geq (fp.div c_currentRoundingMode .cse0 c_~var_1_2~0) c_~var_1_3~0) .cse2)))) (= ((_ extract 7 0) (bvadd (_ bv4294967264 32) ((_ sign_extend 24) c_~var_1_4~0))) c_~var_1_1~0) (= ((_ sign_extend 24) c_~var_1_7~0) c_~var_1_8~0)) is different from false [2024-11-05 19:37:26,151 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 19.0 100.0))))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7995.0 8.0))) (.cse2 (fp.gt c_~var_1_2~0 .cse1))) (or (and (fp.geq (fp.div c_currentRoundingMode .cse0 .cse1) c_~var_1_3~0) (not .cse2)) (and (fp.geq (fp.div c_currentRoundingMode .cse0 c_~var_1_2~0) c_~var_1_3~0) .cse2)))) (= ((_ extract 7 0) (bvadd (_ bv4294967264 32) ((_ sign_extend 24) c_~var_1_4~0))) c_~var_1_1~0) (= ((_ sign_extend 24) c_~var_1_7~0) c_~var_1_8~0)) is different from true