/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-05 22:52:01,324 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 22:52:01,407 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 22:52:01,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 22:52:01,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 22:52:01,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 22:52:01,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 22:52:01,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 22:52:01,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 22:52:01,445 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 22:52:01,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 22:52:01,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 22:52:01,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 22:52:01,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 22:52:01,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 22:52:01,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 22:52:01,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 22:52:01,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 22:52:01,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 22:52:01,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 22:52:01,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 22:52:01,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 22:52:01,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 22:52:01,453 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 22:52:01,453 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 22:52:01,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 22:52:01,454 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 22:52:01,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 22:52:01,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 22:52:01,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 22:52:01,455 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 22:52:01,455 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 22:52:01,455 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 22:52:01,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 22:52:01,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 22:52:01,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 22:52:01,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 22:52:01,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 22:52:01,457 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 22:52:01,457 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 22:52:01,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 22:52:01,459 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 22:52:01,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 22:52:01,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 22:52:01,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF [2024-11-05 22:52:01,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 22:52:01,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 22:52:01,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 22:52:01,738 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 22:52:01,738 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 22:52:01,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-11-05 22:52:03,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 22:52:03,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 22:52:03,443 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-20.i [2024-11-05 22:52:03,451 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15daddd74/622f3fb7ed1d49e5a06a3a46cf3ff5d2/FLAGba1677b3a [2024-11-05 22:52:03,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15daddd74/622f3fb7ed1d49e5a06a3a46cf3ff5d2 [2024-11-05 22:52:03,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 22:52:03,750 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 22:52:03,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 22:52:03,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 22:52:03,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 22:52:03,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:52:03" (1/1) ... [2024-11-05 22:52:03,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39fc4553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:03, skipping insertion in model container [2024-11-05 22:52:03,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:52:03" (1/1) ... [2024-11-05 22:52:03,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 22:52:03,988 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-20.i[916,929] [2024-11-05 22:52:04,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 22:52:04,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 22:52:04,073 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-20.i[916,929] [2024-11-05 22:52:04,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 22:52:04,110 INFO L204 MainTranslator]: Completed translation [2024-11-05 22:52:04,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04 WrapperNode [2024-11-05 22:52:04,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 22:52:04,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 22:52:04,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 22:52:04,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 22:52:04,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,150 INFO L138 Inliner]: procedures = 27, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-05 22:52:04,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 22:52:04,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 22:52:04,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 22:52:04,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 22:52:04,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,176 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 22:52:04,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 22:52:04,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 22:52:04,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 22:52:04,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 22:52:04,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (1/1) ... [2024-11-05 22:52:04,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 22:52:04,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 22:52:04,230 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 22:52:04,232 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 22:52:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 22:52:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 22:52:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 22:52:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 22:52:04,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 22:52:04,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 22:52:04,319 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 22:52:04,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 22:52:12,702 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-05 22:52:12,702 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 22:52:12,716 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 22:52:12,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 22:52:12,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:52:12 BoogieIcfgContainer [2024-11-05 22:52:12,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 22:52:12,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 22:52:12,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 22:52:12,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 22:52:12,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:52:03" (1/3) ... [2024-11-05 22:52:12,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44062850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:52:12, skipping insertion in model container [2024-11-05 22:52:12,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:52:04" (2/3) ... [2024-11-05 22:52:12,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44062850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:52:12, skipping insertion in model container [2024-11-05 22:52:12,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:52:12" (3/3) ... [2024-11-05 22:52:12,728 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-20.i [2024-11-05 22:52:12,741 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 22:52:12,742 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 22:52:12,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 22:52:12,797 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;@19a361d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 22:52:12,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 22:52:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 22:52:12,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-05 22:52:12,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 22:52:12,811 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:12,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 22:52:12,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 22:52:12,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1106886808, now seen corresponding path program 1 times [2024-11-05 22:52:12,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 22:52:12,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490727316] [2024-11-05 22:52:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:52:12,831 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 22:52:12,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 22:52:12,832 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 22:52:12,834 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 22:52:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 22:52:13,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 22:52:13,134 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 22:52:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-05 22:52:13,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-05 22:52:13,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-05 22:52:13,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490727316] [2024-11-05 22:52:13,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490727316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-05 22:52:13,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-05 22:52:13,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-05 22:52:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612488580] [2024-11-05 22:52:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 22:52:13,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 22:52:13,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-05 22:52:13,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 22:52:13,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 22:52:13,217 INFO L87 Difference]: Start difference. First operand has 62 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 22:52:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 22:52:13,253 INFO L93 Difference]: Finished difference Result 117 states and 204 transitions. [2024-11-05 22:52:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 22:52:13,256 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 146 [2024-11-05 22:52:13,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 22:52:13,266 INFO L225 Difference]: With dead ends: 117 [2024-11-05 22:52:13,266 INFO L226 Difference]: Without dead ends: 58 [2024-11-05 22:52:13,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 145 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 22:52:13,276 INFO L432 NwaCegarLoop]: 86 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, 86 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 22:52:13,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 22:52:13,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-05 22:52:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-05 22:52:13,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 32 states have (on average 1.1875) internal successors, (38), 32 states have internal predecessors, (38), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-05 22:52:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 86 transitions. [2024-11-05 22:52:13,330 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 86 transitions. Word has length 146 [2024-11-05 22:52:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 22:52:13,331 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 86 transitions. [2024-11-05 22:52:13,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-05 22:52:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 86 transitions. [2024-11-05 22:52:13,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-05 22:52:13,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 22:52:13,339 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:13,353 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 22:52:13,539 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 22:52:13,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 22:52:13,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 22:52:13,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1979707240, now seen corresponding path program 1 times [2024-11-05 22:52:13,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 22:52:13,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206406351] [2024-11-05 22:52:13,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:52:13,542 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 22:52:13,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 22:52:13,546 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 22:52:13,571 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 22:52:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-05 22:52:13,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-05 22:52:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-05 22:52:14,254 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-05 22:52:14,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1157267095] [2024-11-05 22:52:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:52:14,255 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-05 22:52:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-05 22:52:14,257 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) [2024-11-05 22:52:14,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-05 22:52:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 22:52:14,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-05 22:52:14,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 22:52:22,040 WARN L286 SmtUtils]: Spent 7.27s 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) [2024-11-05 22:52:30,119 WARN L286 SmtUtils]: Spent 8.08s 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) [2024-11-05 22:52:38,245 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 22:52:46,376 WARN L286 SmtUtils]: Spent 8.13s 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 22:52:50,421 WARN L851 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 (bvadd (bvneg c_~var_1_4~0) c_~var_1_3~0 (bvneg c_~var_1_5~0))) (= (_ bv5 32) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (= c_~var_1_7~0 ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 31.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (bvadd (bvneg c_~var_1_8~0) c_~var_1_3~0))))) (not (= (_ bv0 8) c_~var_1_2~0))) is different from false [2024-11-05 22:52:54,460 WARN L873 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 (bvadd (bvneg c_~var_1_4~0) c_~var_1_3~0 (bvneg c_~var_1_5~0))) (= (_ bv5 32) |c_ULTIMATE.start_step_~stepLocal_1~0#1|) (= c_~var_1_7~0 ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 31.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (bvadd (bvneg c_~var_1_8~0) c_~var_1_3~0))))) (not (= (_ bv0 8) c_~var_1_2~0))) is different from true [2024-11-05 22:53:00,636 WARN L286 SmtUtils]: Spent 6.17s 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 22:53:08,711 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) [2024-11-05 22:53:16,878 WARN L286 SmtUtils]: Spent 8.17s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-05 22:53:25,059 WARN L286 SmtUtils]: Spent 8.18s 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 22:53:29,101 WARN L851 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 (bvadd (bvneg c_~var_1_4~0) c_~var_1_3~0 (bvneg c_~var_1_5~0))) (= c_~var_1_7~0 ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 31.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (bvadd (bvneg c_~var_1_8~0) c_~var_1_3~0))))) (not (bvuge (_ bv5 32) c_~var_1_11~0)) (not (= (_ bv0 8) c_~var_1_2~0))) is different from false [2024-11-05 22:53:33,135 WARN L873 $PredicateComparison]: unable to prove that (and (= c_~var_1_1~0 (bvadd (bvneg c_~var_1_4~0) c_~var_1_3~0 (bvneg c_~var_1_5~0))) (= c_~var_1_7~0 ((_ fp.to_sbv 32) roundTowardZero (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 31.0 2.0)) ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_4~0)) ((_ to_fp 11 53) c_currentRoundingMode (bvadd (bvneg c_~var_1_8~0) c_~var_1_3~0))))) (not (bvuge (_ bv5 32) c_~var_1_11~0)) (not (= (_ bv0 8) c_~var_1_2~0))) is different from true [2024-11-05 22:53:41,270 WARN L286 SmtUtils]: Spent 8.13s 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 22:53:49,342 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)