/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-50_file-22.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:31:12,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:31:12,834 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:31:12,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:31:12,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:31:12,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:31:12,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:31:12,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:31:12,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:31:12,869 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:31:12,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:31:12,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:31:12,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:31:12,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:31:12,871 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:31:12,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:31:12,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:31:12,872 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:31:12,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:31:12,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:31:12,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:31:12,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:31:12,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:31:12,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:31:12,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:31:12,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:31:12,876 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:31:12,876 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:31:12,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:31:12,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:31:12,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:31:12,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:31:12,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:31:12,877 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:31:12,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:31:13,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:31:13,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:31:13,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:31:13,077 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:31:13,077 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:31:13,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-22.i [2023-12-16 11:31:14,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:31:14,258 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:31:14,259 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-22.i [2023-12-16 11:31:14,265 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6fc021c/34b3585b2ef74598ada99f4e2881ac3b/FLAG9c75a418b [2023-12-16 11:31:14,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f6fc021c/34b3585b2ef74598ada99f4e2881ac3b [2023-12-16 11:31:14,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:31:14,297 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:31:14,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:31:14,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:31:14,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:31:14,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9e8c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14, skipping insertion in model container [2023-12-16 11:31:14,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,344 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:31:14,452 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-50_file-22.i[915,928] [2023-12-16 11:31:14,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:31:14,531 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:31:14,539 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-50_file-22.i[915,928] [2023-12-16 11:31:14,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:31:14,580 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:31:14,581 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14 WrapperNode [2023-12-16 11:31:14,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:31:14,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:31:14,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:31:14,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:31:14,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,621 INFO L138 Inliner]: procedures = 27, calls = 63, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 255 [2023-12-16 11:31:14,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:31:14,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:31:14,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:31:14,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:31:14,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,646 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]. [2023-12-16 11:31:14,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:31:14,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:31:14,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:31:14,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:31:14,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (1/1) ... [2023-12-16 11:31:14,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:31:14,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:31:14,712 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) [2023-12-16 11:31:14,729 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 [2023-12-16 11:31:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:31:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:31:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:31:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:31:14,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:31:14,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:31:14,851 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:31:14,854 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:31:28,087 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:31:28,116 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:31:28,116 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:31:28,116 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:31:28 BoogieIcfgContainer [2023-12-16 11:31:28,116 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:31:28,118 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:31:28,118 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:31:28,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:31:28,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:31:14" (1/3) ... [2023-12-16 11:31:28,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108d7c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:31:28, skipping insertion in model container [2023-12-16 11:31:28,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:31:14" (2/3) ... [2023-12-16 11:31:28,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108d7c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:31:28, skipping insertion in model container [2023-12-16 11:31:28,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:31:28" (3/3) ... [2023-12-16 11:31:28,122 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-22.i [2023-12-16 11:31:28,134 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:31:28,135 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:31:28,166 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:31:28,171 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;@1bf24f46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:31:28,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:31:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 59 states have internal predecessors, (80), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 11:31:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-16 11:31:28,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:31:28,199 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:31:28,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:31:28,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:31:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash 25075813, now seen corresponding path program 1 times [2023-12-16 11:31:28,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:31:28,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608635402] [2023-12-16 11:31:28,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:31:28,216 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 [2023-12-16 11:31:28,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:31:28,219 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) [2023-12-16 11:31:28,219 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 [2023-12-16 11:31:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:31:29,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:31:29,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:31:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-16 11:31:29,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:31:29,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:31:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608635402] [2023-12-16 11:31:29,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608635402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:31:29,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:31:29,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:31:29,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101871546] [2023-12-16 11:31:29,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:31:29,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:31:29,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:31:29,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:31:29,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:31:29,287 INFO L87 Difference]: Start difference. First operand has 111 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 59 states have internal predecessors, (80), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-16 11:31:33,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:31:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:31:33,995 INFO L93 Difference]: Finished difference Result 219 states and 408 transitions. [2023-12-16 11:31:34,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:31:34,243 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 298 [2023-12-16 11:31:34,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:31:34,250 INFO L225 Difference]: With dead ends: 219 [2023-12-16 11:31:34,250 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 11:31:34,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:31:34,255 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:31:34,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-16 11:31:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 11:31:34,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-16 11:31:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 57 states have (on average 1.280701754385965) internal successors, (73), 57 states have internal predecessors, (73), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 11:31:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 173 transitions. [2023-12-16 11:31:34,304 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 173 transitions. Word has length 298 [2023-12-16 11:31:34,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:31:34,305 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 173 transitions. [2023-12-16 11:31:34,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-16 11:31:34,306 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 173 transitions. [2023-12-16 11:31:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-16 11:31:34,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:31:34,310 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:31:34,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:31:34,528 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 [2023-12-16 11:31:34,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:31:34,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:31:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash 26922855, now seen corresponding path program 1 times [2023-12-16 11:31:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:31:34,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981564432] [2023-12-16 11:31:34,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:31:34,531 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 [2023-12-16 11:31:34,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:31:34,538 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) [2023-12-16 11:31:34,540 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 [2023-12-16 11:31:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:31:35,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:31:35,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:31:39,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2023-12-16 11:31:39,765 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:31:39,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:31:39,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981564432] [2023-12-16 11:31:39,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981564432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:31:39,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:31:39,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:31:39,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881057224] [2023-12-16 11:31:39,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:31:39,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:31:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:31:39,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:31:39,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 11:31:39,769 INFO L87 Difference]: Start difference. First operand 109 states and 173 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-16 11:31:44,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:31:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:31:44,872 INFO L93 Difference]: Finished difference Result 217 states and 345 transitions. [2023-12-16 11:31:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:31:45,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) Word has length 298 [2023-12-16 11:31:45,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:31:45,125 INFO L225 Difference]: With dead ends: 217 [2023-12-16 11:31:45,125 INFO L226 Difference]: Without dead ends: 109 [2023-12-16 11:31:45,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:31:45,127 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 105 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 102 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-16 11:31:45,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 167 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2023-12-16 11:31:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-12-16 11:31:45,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-12-16 11:31:45,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 57 states have (on average 1.263157894736842) internal successors, (72), 57 states have internal predecessors, (72), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-16 11:31:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 172 transitions. [2023-12-16 11:31:45,141 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 172 transitions. Word has length 298 [2023-12-16 11:31:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:31:45,142 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 172 transitions. [2023-12-16 11:31:45,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 1 states have call predecessors, (50), 1 states have call successors, (50) [2023-12-16 11:31:45,142 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 172 transitions. [2023-12-16 11:31:45,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-12-16 11:31:45,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:31:45,145 INFO L195 NwaCegarLoop]: trace histogram [50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:31:45,167 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 (3)] Forceful destruction successful, exit code 0 [2023-12-16 11:31:45,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2023-12-16 11:31:45,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:31:45,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:31:45,366 INFO L85 PathProgramCache]: Analyzing trace with hash -984194395, now seen corresponding path program 1 times [2023-12-16 11:31:45,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:31:45,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089936932] [2023-12-16 11:31:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:31:45,367 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 [2023-12-16 11:31:45,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:31:45,369 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2023-12-16 11:31:45,370 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 (4)] Waiting until timeout for monitored process [2023-12-16 11:31:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:31:46,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-16 11:31:46,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:31:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2213 proven. 357 refuted. 0 times theorem prover too weak. 2330 trivial. 0 not checked. [2023-12-16 11:31:57,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:31:58,153 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:31:58,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1089936932] [2023-12-16 11:31:58,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1089936932] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:31:58,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [995216998] [2023-12-16 11:31:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:31:58,154 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:31:58,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:31:58,190 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:31:58,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-16 11:32:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:32:01,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 11:32:01,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:32:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 2325 proven. 228 refuted. 0 times theorem prover too weak. 2347 trivial. 0 not checked. [2023-12-16 11:32:08,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:32:08,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [995216998] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:32:08,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:32:08,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2023-12-16 11:32:08,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195816239] [2023-12-16 11:32:08,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:32:08,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 11:32:08,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:32:08,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 11:32:08,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2023-12-16 11:32:08,699 INFO L87 Difference]: Start difference. First operand 109 states and 172 transitions. Second operand has 17 states, 17 states have (on average 6.705882352941177) internal successors, (114), 16 states have internal predecessors, (114), 6 states have call successors, (95), 6 states have call predecessors, (95), 9 states have return successors, (96), 6 states have call predecessors, (96), 6 states have call successors, (96) [2023-12-16 11:32:19,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:32:23,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:32:27,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] Received shutdown request... [2023-12-16 11:32:30,988 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:32:31,001 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:32:31,029 WARN L340 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 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:32:31,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:32:32,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-16 11:32:32,051 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 (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:32:32,189 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 11:32:32,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2023-12-16 11:32:32,232 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 123 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 62 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:32:32,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 552 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 762 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2023-12-16 11:32:32,233 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:32:32,233 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 11:32:32,241 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-16 11:32:32,243 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:32:32,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:32:32 BoogieIcfgContainer [2023-12-16 11:32:32,256 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:32:32,257 INFO L158 Benchmark]: Toolchain (without parser) took 77959.85ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 130.1MB in the beginning and 142.0MB in the end (delta: -11.8MB). Peak memory consumption was 67.7MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,257 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:32:32,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.67ms. Allocated memory is still 178.3MB. Free memory was 129.8MB in the beginning and 112.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 178.3MB. Free memory was 112.7MB in the beginning and 109.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,259 INFO L158 Benchmark]: Boogie Preprocessor took 42.24ms. Allocated memory is still 178.3MB. Free memory was 109.5MB in the beginning and 105.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,259 INFO L158 Benchmark]: RCFGBuilder took 13451.52ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 105.3MB in the beginning and 215.4MB in the end (delta: -110.0MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,260 INFO L158 Benchmark]: TraceAbstraction took 64138.64ms. Allocated memory is still 256.9MB. Free memory was 214.9MB in the beginning and 142.0MB in the end (delta: 72.9MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2023-12-16 11:32:32,265 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2023-12-16 11:32:32,266 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 137 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 281.67ms. Allocated memory is still 178.3MB. Free memory was 129.8MB in the beginning and 112.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 178.3MB. Free memory was 112.7MB in the beginning and 109.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.24ms. Allocated memory is still 178.3MB. Free memory was 109.5MB in the beginning and 105.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 13451.52ms. Allocated memory was 178.3MB in the beginning and 256.9MB in the end (delta: 78.6MB). Free memory was 105.3MB in the beginning and 215.4MB in the end (delta: -110.0MB). Peak memory consumption was 31.0MB. Max. memory is 8.0GB. * TraceAbstraction took 64138.64ms. Allocated memory is still 256.9MB. Free memory was 214.9MB in the beginning and 142.0MB in the end (delta: 72.9MB). Peak memory consumption was 73.4MB. 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.1s, OverallIterations: 3, TraceHistogramMax: 50, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 31.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 228 mSDsluCounter, 889 SdHoareTripleChecker+Invalid, 31.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 446 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 768 IncrementalHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 443 mSDtfsCounter, 768 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1239 GetRequests, 1212 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 24.1s InterpolantComputationTime, 1192 NumberOfCodeBlocks, 1192 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1188 ConstructedInterpolants, 2 QuantifiedInterpolants, 6475 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1875 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 19015/19600 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: Timeout Completed graceful shutdown