/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:44:06,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:44:06,366 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 12:44:06,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:44:06,371 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:44:06,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:44:06,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:44:06,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:44:06,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:44:06,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:44:06,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:44:06,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:44:06,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:44:06,401 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:44:06,401 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:44:06,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:44:06,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:44:06,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:44:06,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:44:06,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:44:06,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:44:06,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:44:06,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:44:06,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:44:06,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:44:06,403 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:44:06,403 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:44:06,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:44:06,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:44:06,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:44:06,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:44:06,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:44:06,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:44:06,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:44:06,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:44:06,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:44:06,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:44:06,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:44:06,406 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:44:06,406 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:44:06,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:44:06,408 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:44:06,408 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:44:06,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:44:06,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:44:06,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:44:06,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:44:06,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:44:06,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:44:06,636 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:44:06,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-71.i [2024-11-03 12:44:08,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:44:08,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:44:08,197 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount10_file-71.i [2024-11-03 12:44:08,211 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1898eb2/6262a29a91d14201915a139887ff4278/FLAGda4388142 [2024-11-03 12:44:08,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b1898eb2/6262a29a91d14201915a139887ff4278 [2024-11-03 12:44:08,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:44:08,233 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:44:08,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:44:08,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:44:08,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:44:08,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d601391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08, skipping insertion in model container [2024-11-03 12:44:08,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:44:08,436 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-71.i[915,928] [2024-11-03 12:44:08,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:44:08,482 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:44:08,494 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-71.i[915,928] [2024-11-03 12:44:08,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:44:08,525 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:44:08,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08 WrapperNode [2024-11-03 12:44:08,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:44:08,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:44:08,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:44:08,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:44:08,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,561 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 85 [2024-11-03 12:44:08,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:44:08,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:44:08,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:44:08,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:44:08,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,588 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 12:44:08,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,600 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:44:08,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:44:08,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:44:08,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:44:08,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (1/1) ... [2024-11-03 12:44:08,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:44:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:44:08,633 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 12:44:08,636 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 12:44:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:44:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:44:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:44:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:44:08,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:44:08,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:44:08,724 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:44:08,726 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:44:11,745 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-03 12:44:11,746 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:44:11,763 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:44:11,765 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:44:11,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:11 BoogieIcfgContainer [2024-11-03 12:44:11,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:44:11,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:44:11,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:44:11,771 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:44:11,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:44:08" (1/3) ... [2024-11-03 12:44:11,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd95f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:11, skipping insertion in model container [2024-11-03 12:44:11,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:44:08" (2/3) ... [2024-11-03 12:44:11,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd95f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:44:11, skipping insertion in model container [2024-11-03 12:44:11,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:44:11" (3/3) ... [2024-11-03 12:44:11,774 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-71.i [2024-11-03 12:44:11,788 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:44:11,788 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:44:11,848 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:44:11,855 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;@37a08991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:44:11,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:44:11,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 12:44:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-03 12:44:11,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:44:11,871 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:11,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:44:11,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:44:11,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2017305078, now seen corresponding path program 1 times [2024-11-03 12:44:11,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:44:11,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780695321] [2024-11-03 12:44:11,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:44:11,889 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:44:11,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:44:11,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:44:11,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:44:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:44:12,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 12:44:12,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:44:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 12:44:19,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:44:47,774 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 (= (_ bv0 8) c_~var_1_2~0)) (.cse0 (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0))))) (.cse1 (= ((_ zero_extend 24) c_~var_1_6~0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) c_~var_1_9~0) (bvneg ((_ zero_extend 24) c_~var_1_10~0)))))))) (and (or .cse0 (and .cse1 .cse2)) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse2) (or .cse0 .cse1) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0))) (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))))) .cse1))) is different from true [2024-11-03 12:45:00,209 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 8) c_~var_1_2~0))) (and (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse0) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse0))) is different from true [2024-11-03 12:45:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 12:45:00,497 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:45:00,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780695321] [2024-11-03 12:45:00,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [780695321] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:45:00,498 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:45:00,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2024-11-03 12:45:00,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660277568] [2024-11-03 12:45:00,501 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:45:00,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-03 12:45:00,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:45:00,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-03 12:45:00,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=54, Unknown=2, NotChecked=30, Total=110 [2024-11-03 12:45:00,529 INFO L87 Difference]: Start difference. First operand has 42 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 28 states have internal predecessors, (35), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2024-11-03 12:45:05,104 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 8) c_~var_1_2~0))) (and (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse0) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 125.0 4.0))) c_~var_1_1~0) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse0) (= c_currentRoundingMode roundNearestTiesToEven) .cse0)) is different from true [2024-11-03 12:45:09,232 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ extract 7 0) (bvadd ((_ zero_extend 24) c_~var_1_9~0) (bvneg ((_ zero_extend 24) c_~var_1_10~0)))))) (let ((.cse0 (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0))))) (.cse1 (= ((_ zero_extend 24) c_~var_1_6~0) ((_ zero_extend 24) .cse3))) (.cse2 (= (_ bv0 8) c_~var_1_2~0))) (and (or .cse0 (and .cse1 .cse2)) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0))) (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0)))) .cse2) (= c_~var_1_6~0 .cse3) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 125.0 4.0))) c_~var_1_1~0) (or .cse0 .cse1) (or (forall ((~var_1_5~0 (_ FloatingPoint 8 24)) (~var_1_4~0 (_ FloatingPoint 8 24)) (~var_1_7~0 (_ FloatingPoint 11 53)) (~var_1_8~0 (_ FloatingPoint 11 53))) (or (not (fp.eq c_~var_1_1~0 (fp.add c_currentRoundingMode ~var_1_4~0 ~var_1_5~0))) (not (fp.geq (fp.sub c_currentRoundingMode ~var_1_7~0 ~var_1_8~0) ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_1~0 ~var_1_4~0)))))) .cse1) (= c_currentRoundingMode roundNearestTiesToEven) .cse2))) is different from true [2024-11-03 12:45:13,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:45:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:45:14,692 INFO L93 Difference]: Finished difference Result 122 states and 205 transitions. [2024-11-03 12:45:14,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 12:45:14,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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 79 [2024-11-03 12:45:14,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:45:14,700 INFO L225 Difference]: With dead ends: 122 [2024-11-03 12:45:14,700 INFO L226 Difference]: Without dead ends: 83 [2024-11-03 12:45:14,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=28, Invalid=56, Unknown=4, NotChecked=68, Total=156 [2024-11-03 12:45:14,705 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 13 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 266 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:45:14,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 212 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 266 Unchecked, 6.0s Time] [2024-11-03 12:45:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-03 12:45:14,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 42. [2024-11-03 12:45:14,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 28 states have internal predecessors, (33), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-03 12:45:14,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 57 transitions. [2024-11-03 12:45:14,737 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 57 transitions. Word has length 79 [2024-11-03 12:45:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:45:14,738 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 57 transitions. [2024-11-03 12:45:14,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2024-11-03 12:45:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 57 transitions. [2024-11-03 12:45:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-03 12:45:14,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:45:14,742 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:14,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:45:14,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:14,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:45:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:45:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2019152120, now seen corresponding path program 1 times [2024-11-03 12:45:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:45:14,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925489143] [2024-11-03 12:45:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:45:14,945 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:45:14,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:45:14,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:45:14,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:45:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:45:15,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-03 12:45:15,008 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:45:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-03 12:45:43,777 INFO L311 TraceCheckSpWp]: Computing backward predicates...