/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-7.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 00:30:17,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 00:30:17,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 00:30:17,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 00:30:17,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 00:30:17,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 00:30:17,328 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 00:30:17,328 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 00:30:17,329 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 00:30:17,332 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 00:30:17,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 00:30:17,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 00:30:17,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 00:30:17,334 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 00:30:17,334 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 00:30:17,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 00:30:17,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 00:30:17,335 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 00:30:17,335 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 00:30:17,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 00:30:17,335 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 00:30:17,336 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 00:30:17,337 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 00:30:17,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 00:30:17,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 00:30:17,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 00:30:17,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 00:30:17,338 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 00:30:17,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 00:30:17,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:30:17,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 00:30:17,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 00:30:17,339 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 00:30:17,340 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 00:30:17,340 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 00:30:17,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 00:30:17,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 00:30:17,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 00:30:17,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 00:30:17,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 00:30:17,572 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 00:30:17,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-7.i [2023-12-23 00:30:18,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 00:30:18,980 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 00:30:18,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-7.i [2023-12-23 00:30:18,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c667481/b1ec21f7ed30460b85ac33d748c0df61/FLAGc77feea18 [2023-12-23 00:30:19,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c667481/b1ec21f7ed30460b85ac33d748c0df61 [2023-12-23 00:30:19,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 00:30:19,017 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 00:30:19,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 00:30:19,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 00:30:19,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 00:30:19,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e3a875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19, skipping insertion in model container [2023-12-23 00:30:19,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,067 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 00:30:19,198 WARN L239 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_fillercode_fillercodesize_ps-cn-100_file-7.i[915,928] [2023-12-23 00:30:19,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:30:19,282 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 00:30:19,290 WARN L239 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_fillercode_fillercodesize_ps-cn-100_file-7.i[915,928] [2023-12-23 00:30:19,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 00:30:19,356 INFO L206 MainTranslator]: Completed translation [2023-12-23 00:30:19,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19 WrapperNode [2023-12-23 00:30:19,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 00:30:19,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 00:30:19,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 00:30:19,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 00:30:19,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,431 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 310 [2023-12-23 00:30:19,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 00:30:19,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 00:30:19,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 00:30:19,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 00:30:19,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,476 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]. [2023-12-23 00:30:19,477 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,506 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,510 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,528 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 00:30:19,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 00:30:19,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 00:30:19,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 00:30:19,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (1/1) ... [2023-12-23 00:30:19,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 00:30:19,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 00:30:19,576 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) [2023-12-23 00:30:19,587 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 [2023-12-23 00:30:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 00:30:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 00:30:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 00:30:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 00:30:19,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 00:30:19,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 00:30:19,699 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 00:30:19,701 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 00:30:38,473 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 00:30:38,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 00:30:38,537 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 00:30:38,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:30:38 BoogieIcfgContainer [2023-12-23 00:30:38,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 00:30:38,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 00:30:38,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 00:30:38,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 00:30:38,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:30:19" (1/3) ... [2023-12-23 00:30:38,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bd268f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:30:38, skipping insertion in model container [2023-12-23 00:30:38,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:30:19" (2/3) ... [2023-12-23 00:30:38,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bd268f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:30:38, skipping insertion in model container [2023-12-23 00:30:38,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:30:38" (3/3) ... [2023-12-23 00:30:38,545 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-7.i [2023-12-23 00:30:38,559 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 00:30:38,559 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 00:30:38,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 00:30:38,609 INFO L357 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, mHoare=true, 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;@2a21b129, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 00:30:38,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 00:30:38,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 75 states have internal predecessors, (103), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-23 00:30:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-12-23 00:30:38,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:30:38,630 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 00:30:38,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:30:38,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:30:38,634 INFO L85 PathProgramCache]: Analyzing trace with hash 618379673, now seen corresponding path program 1 times [2023-12-23 00:30:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:30:38,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816051302] [2023-12-23 00:30:38,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:30:38,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:30:38,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:30:38,648 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:30:38,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 00:30:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:30:39,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 00:30:39,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:30:39,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 1546 proven. 0 refuted. 0 times theorem prover too weak. 4178 trivial. 0 not checked. [2023-12-23 00:30:39,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 00:30:39,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 00:30:39,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816051302] [2023-12-23 00:30:39,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816051302] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 00:30:39,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 00:30:39,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 00:30:39,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696500431] [2023-12-23 00:30:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 00:30:39,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 00:30:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 00:30:39,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 00:30:39,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 00:30:39,425 INFO L87 Difference]: Start difference. First operand has 131 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 75 states have internal predecessors, (103), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-23 00:30:40,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 00:30:40,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 00:30:40,649 INFO L93 Difference]: Finished difference Result 259 states and 474 transitions. [2023-12-23 00:30:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 00:30:40,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 329 [2023-12-23 00:30:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 00:30:40,696 INFO L225 Difference]: With dead ends: 259 [2023-12-23 00:30:40,697 INFO L226 Difference]: Without dead ends: 129 [2023-12-23 00:30:40,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 00:30:40,704 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-23 00:30:40,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-23 00:30:40,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-23 00:30:40,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-12-23 00:30:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 73 states have (on average 1.3424657534246576) internal successors, (98), 73 states have internal predecessors, (98), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-23 00:30:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 206 transitions. [2023-12-23 00:30:40,789 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 206 transitions. Word has length 329 [2023-12-23 00:30:40,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 00:30:40,789 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 206 transitions. [2023-12-23 00:30:40,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2023-12-23 00:30:40,790 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 206 transitions. [2023-12-23 00:30:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-12-23 00:30:40,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 00:30:40,796 INFO L195 NwaCegarLoop]: trace histogram [54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 00:30:40,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 00:30:41,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:30:41,014 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 00:30:41,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 00:30:41,014 INFO L85 PathProgramCache]: Analyzing trace with hash 618150633, now seen corresponding path program 1 times [2023-12-23 00:30:41,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 00:30:41,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219793636] [2023-12-23 00:30:41,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 00:30:41,016 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 00:30:41,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 00:30:41,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 00:30:41,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 00:30:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 00:30:41,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 00:30:41,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 00:31:10,754 WARN L293 SmtUtils]: Spent 11.63s on a formula simplification that was a NOOP. DAG size: 73 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 00:31:39,855 WARN L293 SmtUtils]: Spent 10.87s on a formula simplification that was a NOOP. DAG size: 76 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 00:32:01,759 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 00:33:15,230 WARN L293 SmtUtils]: Spent 42.56s on a formula simplification that was a NOOP. DAG size: 81 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 00:34:48,468 WARN L293 SmtUtils]: Spent 38.70s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)