/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 'cvc5 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/nearbyint.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 06:00:37,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 06:00:37,444 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 06:00:37,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 06:00:37,453 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 06:00:37,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 06:00:37,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 06:00:37,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 06:00:37,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 06:00:37,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 06:00:37,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 06:00:37,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 06:00:37,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 06:00:37,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 06:00:37,479 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 06:00:37,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 06:00:37,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 06:00:37,480 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 06:00:37,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 06:00:37,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 06:00:37,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 06:00:37,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 06:00:37,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 06:00:37,481 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 06:00:37,482 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 06:00:37,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 06:00:37,482 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 06:00:37,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 06:00:37,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 06:00:37,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 06:00:37,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 06:00:37,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 06:00:37,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 06:00:37,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 06:00:37,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:00:37,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 06:00:37,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 06:00:37,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 06:00:37,486 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 06:00:37,486 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 06:00:37,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 06:00:37,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 06:00:37,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 06:00:37,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 06:00:37,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:37,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 06:00:37,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 06:00:37,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 06:00:37,696 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 06:00:37,696 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 06:00:37,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/nearbyint.i [2024-11-03 06:00:39,101 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 06:00:39,344 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 06:00:39,345 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint.i [2024-11-03 06:00:39,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b68483/62b54b63e5e04564808854316bbf2979/FLAGbe8515679 [2024-11-03 06:00:39,680 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b68483/62b54b63e5e04564808854316bbf2979 [2024-11-03 06:00:39,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 06:00:39,683 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 06:00:39,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 06:00:39,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 06:00:39,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 06:00:39,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:00:39" (1/1) ... [2024-11-03 06:00:39,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31541f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:39, skipping insertion in model container [2024-11-03 06:00:39,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:00:39" (1/1) ... [2024-11-03 06:00:39,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 06:00:40,164 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint.i[38068,38081] [2024-11-03 06:00:40,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:00:40,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 06:00:40,241 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/nearbyint.i[38068,38081] [2024-11-03 06:00:40,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 06:00:40,374 INFO L204 MainTranslator]: Completed translation [2024-11-03 06:00:40,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40 WrapperNode [2024-11-03 06:00:40,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 06:00:40,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 06:00:40,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 06:00:40,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 06:00:40,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,404 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,432 INFO L138 Inliner]: procedures = 463, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2024-11-03 06:00:40,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 06:00:40,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 06:00:40,434 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 06:00:40,434 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 06:00:40,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,470 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 0 writes are split as follows [0, 0]. [2024-11-03 06:00:40,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 06:00:40,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 06:00:40,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 06:00:40,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 06:00:40,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (1/1) ... [2024-11-03 06:00:40,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 06:00:40,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 06:00:40,542 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 06:00:40,550 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 06:00:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-03 06:00:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 06:00:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-03 06:00:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-03 06:00:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-03 06:00:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-03 06:00:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-03 06:00:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 06:00:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 06:00:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 06:00:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-03 06:00:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-03 06:00:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-03 06:00:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-11-03 06:00:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-11-03 06:00:40,721 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 06:00:40,724 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 06:00:41,006 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-03 06:00:41,006 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 06:00:41,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 06:00:41,023 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 06:00:41,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:00:41 BoogieIcfgContainer [2024-11-03 06:00:41,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 06:00:41,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 06:00:41,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 06:00:41,030 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 06:00:41,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:00:39" (1/3) ... [2024-11-03 06:00:41,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0e1a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:00:41, skipping insertion in model container [2024-11-03 06:00:41,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:00:40" (2/3) ... [2024-11-03 06:00:41,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0e1a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:00:41, skipping insertion in model container [2024-11-03 06:00:41,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:00:41" (3/3) ... [2024-11-03 06:00:41,033 INFO L112 eAbstractionObserver]: Analyzing ICFG nearbyint.i [2024-11-03 06:00:41,049 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 06:00:41,050 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 06:00:41,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 06:00:41,114 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;@24c8eee3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 06:00:41,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 06:00:41,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-03 06:00:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-03 06:00:41,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:00:41,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:00:41,126 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:00:41,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:00:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash 60099875, now seen corresponding path program 1 times [2024-11-03 06:00:41,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:00:41,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1499885791] [2024-11-03 06:00:41,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:00:41,143 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:41,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:00:41,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:00:41,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 06:00:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:00:41,258 WARN L253 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-03 06:00:41,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:00:41,566 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2024-11-03 06:00:41,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 25 [2024-11-03 06:00:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:41,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:00:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:41,873 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:00:41,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1499885791] [2024-11-03 06:00:41,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1499885791] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:00:41,874 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:00:41,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2024-11-03 06:00:41,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997018561] [2024-11-03 06:00:41,877 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:00:41,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 06:00:41,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:00:41,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 06:00:41,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-03 06:00:41,906 INFO L87 Difference]: Start difference. First operand has 63 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:00:43,058 INFO L93 Difference]: Finished difference Result 236 states and 430 transitions. [2024-11-03 06:00:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-03 06:00:43,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-11-03 06:00:43,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:00:43,075 INFO L225 Difference]: With dead ends: 236 [2024-11-03 06:00:43,075 INFO L226 Difference]: Without dead ends: 171 [2024-11-03 06:00:43,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-03 06:00:43,081 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 146 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 06:00:43,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 384 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 06:00:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-03 06:00:43,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 128. [2024-11-03 06:00:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 91 states have internal predecessors, (101), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (52), 34 states have call predecessors, (52), 45 states have call successors, (52) [2024-11-03 06:00:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 199 transitions. [2024-11-03 06:00:43,187 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 199 transitions. Word has length 13 [2024-11-03 06:00:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:00:43,188 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 199 transitions. [2024-11-03 06:00:43,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.142857142857143) internal successors, (15), 9 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:43,188 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 199 transitions. [2024-11-03 06:00:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-03 06:00:43,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:00:43,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:00:43,195 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-03 06:00:43,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:43,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:00:43,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:00:43,392 INFO L85 PathProgramCache]: Analyzing trace with hash -39663284, now seen corresponding path program 1 times [2024-11-03 06:00:43,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:00:43,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834674373] [2024-11-03 06:00:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:00:43,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:43,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:00:43,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:00:43,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 06:00:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:00:43,472 WARN L253 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-03 06:00:43,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:00:43,601 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2024-11-03 06:00:43,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 25 [2024-11-03 06:00:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:43,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:00:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:43,785 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:00:43,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834674373] [2024-11-03 06:00:43,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [834674373] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:00:43,786 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:00:43,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 8 [2024-11-03 06:00:43,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219885431] [2024-11-03 06:00:43,786 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:00:43,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 06:00:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:00:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 06:00:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-03 06:00:43,789 INFO L87 Difference]: Start difference. First operand 128 states and 199 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:00:44,645 INFO L93 Difference]: Finished difference Result 284 states and 447 transitions. [2024-11-03 06:00:44,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-03 06:00:44,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-03 06:00:44,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:00:44,651 INFO L225 Difference]: With dead ends: 284 [2024-11-03 06:00:44,651 INFO L226 Difference]: Without dead ends: 160 [2024-11-03 06:00:44,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-03 06:00:44,654 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 120 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 06:00:44,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 663 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 06:00:44,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-03 06:00:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 136. [2024-11-03 06:00:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 97 states have internal predecessors, (107), 46 states have call successors, (46), 7 states have call predecessors, (46), 7 states have return successors, (54), 34 states have call predecessors, (54), 45 states have call successors, (54) [2024-11-03 06:00:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 207 transitions. [2024-11-03 06:00:44,727 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 207 transitions. Word has length 14 [2024-11-03 06:00:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:00:44,727 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 207 transitions. [2024-11-03 06:00:44,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 8 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 207 transitions. [2024-11-03 06:00:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-03 06:00:44,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:00:44,731 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:00:44,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 06:00:44,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:44,932 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:00:44,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:00:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash 715308360, now seen corresponding path program 1 times [2024-11-03 06:00:44,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:00:44,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365660458] [2024-11-03 06:00:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:00:44,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:44,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:00:44,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:00:44,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 06:00:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 06:00:44,995 WARN L253 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-03 06:00:44,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 06:00:45,091 INFO L349 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size [2024-11-03 06:00:45,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 25 [2024-11-03 06:00:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:45,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 06:00:45,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-03 06:00:45,298 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 06:00:45,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365660458] [2024-11-03 06:00:45,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [365660458] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 06:00:45,298 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 06:00:45,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2024-11-03 06:00:45,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54864085] [2024-11-03 06:00:45,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 06:00:45,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 06:00:45,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 06:00:45,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 06:00:45,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-03 06:00:45,301 INFO L87 Difference]: Start difference. First operand 136 states and 207 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:46,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 06:00:46,152 INFO L93 Difference]: Finished difference Result 248 states and 379 transitions. [2024-11-03 06:00:46,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-03 06:00:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-03 06:00:46,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 06:00:46,156 INFO L225 Difference]: With dead ends: 248 [2024-11-03 06:00:46,156 INFO L226 Difference]: Without dead ends: 184 [2024-11-03 06:00:46,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-03 06:00:46,161 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 148 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-03 06:00:46,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 727 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-03 06:00:46,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-03 06:00:46,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 141. [2024-11-03 06:00:46,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 101 states have internal predecessors, (111), 46 states have call successors, (46), 8 states have call predecessors, (46), 8 states have return successors, (56), 34 states have call predecessors, (56), 45 states have call successors, (56) [2024-11-03 06:00:46,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 213 transitions. [2024-11-03 06:00:46,206 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 213 transitions. Word has length 15 [2024-11-03 06:00:46,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 06:00:46,207 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 213 transitions. [2024-11-03 06:00:46,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 9 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-03 06:00:46,210 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 213 transitions. [2024-11-03 06:00:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-03 06:00:46,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 06:00:46,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 06:00:46,214 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-03 06:00:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:46,412 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 06:00:46,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 06:00:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2097712175, now seen corresponding path program 1 times [2024-11-03 06:00:46,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 06:00:46,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572746304] [2024-11-03 06:00:46,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 06:00:46,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:46,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 [2024-11-03 06:00:46,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 06:00:46,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-03 06:00:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 06:00:46,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-03 06:00:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-03 06:00:46,525 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-03 06:00:46,526 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-03 06:00:46,527 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-03 06:00:46,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-03 06:00:46,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc5 --incremental --print-success --lang smt [2024-11-03 06:00:46,733 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-03 06:00:46,747 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-03 06:00:46,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 06:00:46 BoogieIcfgContainer [2024-11-03 06:00:46,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-03 06:00:46,751 INFO L158 Benchmark]: Toolchain (without parser) took 7067.63ms. Allocated memory was 188.7MB in the beginning and 339.7MB in the end (delta: 151.0MB). Free memory was 134.1MB in the beginning and 118.6MB in the end (delta: 15.5MB). Peak memory consumption was 168.0MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,751 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-03 06:00:46,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.04ms. Allocated memory was 188.7MB in the beginning and 339.7MB in the end (delta: 151.0MB). Free memory was 133.8MB in the beginning and 288.5MB in the end (delta: -154.7MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.48ms. Allocated memory is still 339.7MB. Free memory was 288.5MB in the beginning and 285.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,752 INFO L158 Benchmark]: Boogie Preprocessor took 58.50ms. Allocated memory is still 339.7MB. Free memory was 285.3MB in the beginning and 282.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,752 INFO L158 Benchmark]: RCFGBuilder took 530.48ms. Allocated memory is still 339.7MB. Free memory was 282.7MB in the beginning and 263.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,752 INFO L158 Benchmark]: TraceAbstraction took 5724.33ms. Allocated memory is still 339.7MB. Free memory was 262.8MB in the beginning and 118.6MB in the end (delta: 144.2MB). Peak memory consumption was 144.2MB. Max. memory is 8.0GB. [2024-11-03 06:00:46,754 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 188.7MB. Free memory is still 142.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 691.04ms. Allocated memory was 188.7MB in the beginning and 339.7MB in the end (delta: 151.0MB). Free memory was 133.8MB in the beginning and 288.5MB in the end (delta: -154.7MB). Peak memory consumption was 34.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.48ms. Allocated memory is still 339.7MB. Free memory was 288.5MB in the beginning and 285.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 58.50ms. Allocated memory is still 339.7MB. Free memory was 285.3MB in the beginning and 282.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 530.48ms. Allocated memory is still 339.7MB. Free memory was 282.7MB in the beginning and 263.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 5724.33ms. Allocated memory is still 339.7MB. Free memory was 262.8MB in the beginning and 118.6MB in the end (delta: 144.2MB). Peak memory consumption was 144.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 997]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of nearbyint at line 1006. Possible FailurePath: [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1000] int const modes[] = {0x400, 0, 0xc00, 0x800}; [L1002] int i = 0; VAL [i=0, modes={-1:0}] [L1002] COND TRUE i < sizeof(modes) / sizeof(int) [L1003] EXPR modes[i] [L1003] FCALL fesetround(modes[i]) VAL [i=0, modes={-1:0}] [L1004] modes[i] [L1005] case 0x400: [L1006] CALL __VERIFIER_assert(nearbyint(12.9) == 12.) VAL [\old(cond)=0] [L997] COND TRUE !(cond) VAL [\old(cond)=0] [L997] reach_error() VAL [\old(cond)=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 438 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 414 mSDsluCounter, 1774 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1464 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1144 IncrementalHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 310 mSDtfsCounter, 1144 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=3, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 110 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 26 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-03 06:00:46,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...