/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 00:52:41,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 00:52:41,258 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 00:52:41,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 00:52:41,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 00:52:41,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 00:52:41,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 00:52:41,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 00:52:41,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 00:52:41,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 00:52:41,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 00:52:41,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 00:52:41,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 00:52:41,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 00:52:41,303 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 00:52:41,303 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 00:52:41,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 00:52:41,304 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 00:52:41,304 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 00:52:41,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 00:52:41,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 00:52:41,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 00:52:41,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 00:52:41,308 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 00:52:41,309 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 00:52:41,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 00:52:41,309 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 00:52:41,309 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 00:52:41,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 00:52:41,310 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 00:52:41,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 00:52:41,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 00:52:41,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 00:52:41,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 00:52:41,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:52:41,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 00:52:41,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 00:52:41,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 00:52:41,312 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 00:52:41,313 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 00:52:41,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 00:52:41,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 00:52:41,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 00:52:41,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 00:52:41,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 00:52:41,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 00:52:41,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 00:52:41,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 00:52:41,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 00:52:41,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 00:52:41,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-03 00:52:43,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 00:52:43,279 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 00:52:43,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-03 00:52:43,290 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86da7b54/65d8342188ba4797b12b20f64726f8c6/FLAG19c1af4ac [2024-11-03 00:52:43,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86da7b54/65d8342188ba4797b12b20f64726f8c6 [2024-11-03 00:52:43,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 00:52:43,655 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 00:52:43,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 00:52:43,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 00:52:43,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 00:52:43,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27204486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43, skipping insertion in model container [2024-11-03 00:52:43,662 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 00:52:43,831 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_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-03 00:52:43,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:52:43,888 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 00:52:43,898 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_floatingpointinfluence_no-floats_file-95.i[916,929] [2024-11-03 00:52:43,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 00:52:43,934 INFO L204 MainTranslator]: Completed translation [2024-11-03 00:52:43,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43 WrapperNode [2024-11-03 00:52:43,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 00:52:43,936 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 00:52:43,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 00:52:43,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 00:52:43,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,973 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-03 00:52:43,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 00:52:43,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 00:52:43,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 00:52:43,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 00:52:43,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:43,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,003 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 00:52:44,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,016 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 00:52:44,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 00:52:44,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 00:52:44,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 00:52:44,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (1/1) ... [2024-11-03 00:52:44,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 00:52:44,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 00:52:44,062 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 00:52:44,064 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 00:52:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 00:52:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 00:52:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 00:52:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 00:52:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 00:52:44,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 00:52:44,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 00:52:44,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 00:52:51,101 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-03 00:52:51,101 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 00:52:51,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 00:52:51,116 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 00:52:51,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:52:51 BoogieIcfgContainer [2024-11-03 00:52:51,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 00:52:51,121 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 00:52:51,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 00:52:51,124 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 00:52:51,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:52:43" (1/3) ... [2024-11-03 00:52:51,125 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c505943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:52:51, skipping insertion in model container [2024-11-03 00:52:51,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:52:43" (2/3) ... [2024-11-03 00:52:51,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c505943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:52:51, skipping insertion in model container [2024-11-03 00:52:51,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:52:51" (3/3) ... [2024-11-03 00:52:51,130 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-03 00:52:51,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 00:52:51,147 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 00:52:51,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 00:52:51,226 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;@256ab4b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 00:52:51,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 00:52:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-03 00:52:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-03 00:52:51,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:52:51,244 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:51,244 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:52:51,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:52:51,249 INFO L85 PathProgramCache]: Analyzing trace with hash 311912880, now seen corresponding path program 1 times [2024-11-03 00:52:51,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:52:51,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129065198] [2024-11-03 00:52:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:52:51,260 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:52:51,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:52:51,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:52:51,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 00:52:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:52:51,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 00:52:51,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:52:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 00:52:51,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:52:51,792 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-03 00:52:51,793 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:52:51,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129065198] [2024-11-03 00:52:51,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [129065198] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 00:52:51,794 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 00:52:51,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 00:52:51,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854752675] [2024-11-03 00:52:51,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 00:52:51,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 00:52:51,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:52:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 00:52:51,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 00:52:51,827 INFO L87 Difference]: Start difference. First operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-03 00:52:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:52:51,855 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2024-11-03 00:52:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 00:52:51,857 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 115 [2024-11-03 00:52:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:52:51,862 INFO L225 Difference]: With dead ends: 93 [2024-11-03 00:52:51,862 INFO L226 Difference]: Without dead ends: 46 [2024-11-03 00:52:51,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 228 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 00:52:51,869 INFO L432 NwaCegarLoop]: 66 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, 66 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 00:52:51,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 00:52:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-03 00:52:51,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-03 00:52:51,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-03 00:52:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-03 00:52:51,914 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 115 [2024-11-03 00:52:51,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:52:51,914 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-03 00:52:51,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-03 00:52:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-03 00:52:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-03 00:52:51,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:52:51,918 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:52:51,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 00:52:52,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:52:52,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:52:52,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:52:52,121 INFO L85 PathProgramCache]: Analyzing trace with hash 470655502, now seen corresponding path program 1 times [2024-11-03 00:52:52,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:52:52,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573866397] [2024-11-03 00:52:52,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:52:52,122 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:52:52,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:52:52,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:52:52,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 00:52:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:52:52,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 00:52:52,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:52:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-03 00:52:53,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 00:52:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 21 proven. 33 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-03 00:52:54,196 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 00:52:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573866397] [2024-11-03 00:52:54,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1573866397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 00:52:54,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 00:52:54,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-03 00:52:54,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33665411] [2024-11-03 00:52:54,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 00:52:54,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-03 00:52:54,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 00:52:54,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-03 00:52:54,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-03 00:52:54,201 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-03 00:52:58,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 00:53:01,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 00:53:05,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 00:53:07,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 00:53:10,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 00:53:14,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 00:53:14,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 00:53:14,733 INFO L93 Difference]: Finished difference Result 157 states and 221 transitions. [2024-11-03 00:53:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 00:53:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 116 [2024-11-03 00:53:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 00:53:14,737 INFO L225 Difference]: With dead ends: 157 [2024-11-03 00:53:14,737 INFO L226 Difference]: Without dead ends: 114 [2024-11-03 00:53:14,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2024-11-03 00:53:14,740 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 150 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 145 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2024-11-03 00:53:14,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 184 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 217 Invalid, 1 Unknown, 0 Unchecked, 20.1s Time] [2024-11-03 00:53:14,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-03 00:53:14,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 105. [2024-11-03 00:53:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.0714285714285714) internal successors, (60), 57 states have internal predecessors, (60), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-03 00:53:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 148 transitions. [2024-11-03 00:53:14,783 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 148 transitions. Word has length 116 [2024-11-03 00:53:14,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 00:53:14,785 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 148 transitions. [2024-11-03 00:53:14,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 4 states have call successors, (38), 3 states have call predecessors, (38), 5 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-03 00:53:14,786 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2024-11-03 00:53:14,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-03 00:53:14,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 00:53:14,790 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:53:14,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 00:53:14,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 00:53:14,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 00:53:14,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 00:53:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1304351860, now seen corresponding path program 1 times [2024-11-03 00:53:14,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 00:53:14,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090494536] [2024-11-03 00:53:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 00:53:14,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 00:53:14,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 00:53:14,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 00:53:14,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 00:53:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 00:53:15,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-03 00:53:15,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 00:53:23,987 WARN L286 SmtUtils]: Spent 7.88s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 00:53:29,515 WARN L286 SmtUtils]: Spent 5.53s 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) [2024-11-03 00:53:50,968 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 00:53:57,495 WARN L286 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 00:54:04,422 WARN L286 SmtUtils]: Spent 6.93s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-03 00:54:15,804 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse0 (fp.lt .cse2 .cse3)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse0 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse2)) c_~var_1_3~0)) (and (not .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse3)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0)) (bvsle ((_ zero_extend 24) c_~var_1_12~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_11~0) (_ bv127 32)) (bvsle ((_ zero_extend 24) c_~var_1_10~0) (_ bv127 32))) is different from true [2024-11-03 00:54:26,366 WARN L286 SmtUtils]: Spent 7.83s 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)