/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-72.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:36:34,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:36:34,830 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 11:36:34,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:36:34,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:36:34,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:36:34,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:36:34,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:36:34,863 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:36:34,868 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:36:34,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:36:34,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:36:34,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:36:34,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:36:34,869 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:36:34,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:36:34,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:36:34,870 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:36:34,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:36:34,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:36:34,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:36:34,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:36:34,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:36:34,873 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:36:34,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:36:34,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:36:34,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:36:34,874 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:36:34,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:36:34,874 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:36:34,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:36:34,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:36:34,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:36:34,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:36:34,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:36:34,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:36:34,877 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:36:34,877 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:36:34,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:36:34,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:36:34,877 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:36:34,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:36:35,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:36:35,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:36:35,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:36:35,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:36:35,086 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:36:35,087 INFO L431 ainManager$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-72.i [2023-12-16 11:36:36,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:36:36,494 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:36:36,494 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-72.i [2023-12-16 11:36:36,511 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6dd28df3/e80ca64a4f07426dbc1681d35c44d2e8/FLAG41f38c8f6 [2023-12-16 11:36:36,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6dd28df3/e80ca64a4f07426dbc1681d35c44d2e8 [2023-12-16 11:36:36,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:36:36,530 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:36:36,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:36:36,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:36:36,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:36:36,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a472e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36, skipping insertion in model container [2023-12-16 11:36:36,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:36:36,689 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-72.i[915,928] [2023-12-16 11:36:36,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:36:36,772 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:36:36,786 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-72.i[915,928] [2023-12-16 11:36:36,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:36:36,848 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:36:36,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36 WrapperNode [2023-12-16 11:36:36,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:36:36,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:36:36,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:36:36,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:36:36,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,905 INFO L138 Inliner]: procedures = 27, calls = 57, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 258 [2023-12-16 11:36:36,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:36:36,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:36:36,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:36:36,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:36:36,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,939 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 11:36:36,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:36:36,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:36:36,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:36:36,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:36:36,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (1/1) ... [2023-12-16 11:36:36,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:36:37,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:36:37,032 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 11:36:37,067 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 11:36:37,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:36:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:36:37,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:36:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:36:37,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:36:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:36:37,166 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:36:37,167 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:36:44,153 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:36:44,217 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:36:44,217 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:36:44,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:36:44 BoogieIcfgContainer [2023-12-16 11:36:44,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:36:44,219 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:36:44,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:36:44,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:36:44,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:36:36" (1/3) ... [2023-12-16 11:36:44,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231dbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:36:44, skipping insertion in model container [2023-12-16 11:36:44,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:36:36" (2/3) ... [2023-12-16 11:36:44,223 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231dbc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:36:44, skipping insertion in model container [2023-12-16 11:36:44,223 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:36:44" (3/3) ... [2023-12-16 11:36:44,224 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-72.i [2023-12-16 11:36:44,237 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:36:44,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:36:44,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:36:44,279 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;@75f791bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:36:44,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:36:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 61 states have internal predecessors, (85), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 11:36:44,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-16 11:36:44,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:36:44,316 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:36:44,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:36:44,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:36:44,325 INFO L85 PathProgramCache]: Analyzing trace with hash -196125871, now seen corresponding path program 1 times [2023-12-16 11:36:44,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:36:44,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613853728] [2023-12-16 11:36:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:36:44,343 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 11:36:44,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:36:44,345 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 11:36:44,386 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 11:36:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:36:44,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:36:44,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:36:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 1406 proven. 0 refuted. 0 times theorem prover too weak. 2378 trivial. 0 not checked. [2023-12-16 11:36:44,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:36:44,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:36:44,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613853728] [2023-12-16 11:36:44,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613853728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:36:44,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:36:44,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:36:45,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623545738] [2023-12-16 11:36:45,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:36:45,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:36:45,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:36:45,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:36:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:36:45,030 INFO L87 Difference]: Start difference. First operand has 107 states, 60 states have (on average 1.4166666666666667) internal successors, (85), 61 states have internal predecessors, (85), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-16 11:36:49,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:36:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:36:49,259 INFO L93 Difference]: Finished difference Result 211 states and 388 transitions. [2023-12-16 11:36:49,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:36:49,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 266 [2023-12-16 11:36:49,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:36:49,323 INFO L225 Difference]: With dead ends: 211 [2023-12-16 11:36:49,324 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 11:36:49,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 265 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 11:36:49,329 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:36:49,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 11:36:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 11:36:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-16 11:36:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-16 11:36:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 167 transitions. [2023-12-16 11:36:49,385 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 167 transitions. Word has length 266 [2023-12-16 11:36:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:36:49,385 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 167 transitions. [2023-12-16 11:36:49,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2023-12-16 11:36:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2023-12-16 11:36:49,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-16 11:36:49,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:36:49,392 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:36:49,503 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 11:36:49,600 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 11:36:49,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:36:49,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:36:49,602 INFO L85 PathProgramCache]: Analyzing trace with hash 327429954, now seen corresponding path program 1 times [2023-12-16 11:36:49,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:36:49,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567319480] [2023-12-16 11:36:49,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:36:49,604 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 11:36:49,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:36:49,605 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 11:36:49,640 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 11:36:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:36:50,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:36:50,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:36:50,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-16 11:36:50,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:36:50,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:36:50,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567319480] [2023-12-16 11:36:50,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1567319480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:36:50,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:36:50,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:36:50,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754479269] [2023-12-16 11:36:50,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:36:50,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:36:50,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:36:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:36:50,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:36:50,251 INFO L87 Difference]: Start difference. First operand 105 states and 167 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:36:54,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:36:58,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:37:02,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-16 11:37:02,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:37:02,728 INFO L93 Difference]: Finished difference Result 313 states and 499 transitions. [2023-12-16 11:37:02,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:37:02,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 267 [2023-12-16 11:37:02,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:37:02,737 INFO L225 Difference]: With dead ends: 313 [2023-12-16 11:37:02,737 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 11:37:02,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:37:02,739 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 164 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:37:02,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 484 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 12.4s Time] [2023-12-16 11:37:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 11:37:02,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 207. [2023-12-16 11:37:02,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 116 states have (on average 1.3362068965517242) internal successors, (155), 116 states have internal predecessors, (155), 88 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-16 11:37:02,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 331 transitions. [2023-12-16 11:37:02,813 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 331 transitions. Word has length 267 [2023-12-16 11:37:02,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:37:02,815 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 331 transitions. [2023-12-16 11:37:02,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:37:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 331 transitions. [2023-12-16 11:37:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-16 11:37:02,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:37:02,824 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:02,843 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 (3)] Ended with exit code 0 [2023-12-16 11:37:03,042 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 11:37:03,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:37:03,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:37:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash -693638400, now seen corresponding path program 1 times [2023-12-16 11:37:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:37:03,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612850595] [2023-12-16 11:37:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:37:03,045 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 11:37:03,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:37:03,046 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 11:37:03,065 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 11:37:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:37:03,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:37:03,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:37:07,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-16 11:37:07,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:37:07,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:37:07,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612850595] [2023-12-16 11:37:07,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612850595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:37:07,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:37:07,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:37:07,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560154495] [2023-12-16 11:37:07,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:37:07,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:37:07,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:37:07,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:37:07,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 11:37:07,851 INFO L87 Difference]: Start difference. First operand 207 states and 331 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:37:12,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:16,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:21,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:37:21,366 INFO L93 Difference]: Finished difference Result 556 states and 888 transitions. [2023-12-16 11:37:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 11:37:21,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 267 [2023-12-16 11:37:21,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:37:21,435 INFO L225 Difference]: With dead ends: 556 [2023-12-16 11:37:21,435 INFO L226 Difference]: Without dead ends: 350 [2023-12-16 11:37:21,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:37:21,439 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 110 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 89 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:37:21,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 491 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2023-12-16 11:37:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-12-16 11:37:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 304. [2023-12-16 11:37:21,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 168 states have (on average 1.3273809523809523) internal successors, (223), 168 states have internal predecessors, (223), 132 states have call successors, (132), 3 states have call predecessors, (132), 3 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-16 11:37:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 487 transitions. [2023-12-16 11:37:21,497 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 487 transitions. Word has length 267 [2023-12-16 11:37:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:37:21,505 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 487 transitions. [2023-12-16 11:37:21,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:37:21,505 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 487 transitions. [2023-12-16 11:37:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-12-16 11:37:21,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:37:21,509 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:21,530 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 11:37:21,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /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 11:37:21,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:37:21,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:37:21,711 INFO L85 PathProgramCache]: Analyzing trace with hash 292943937, now seen corresponding path program 1 times [2023-12-16 11:37:21,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:37:21,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221033404] [2023-12-16 11:37:21,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:37:21,712 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 11:37:21,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:37:21,713 INFO L229 MonitoredProcess]: Starting monitored process 5 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 11:37:21,729 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 (5)] Waiting until timeout for monitored process [2023-12-16 11:37:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:37:22,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:37:22,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:37:23,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2023-12-16 11:37:23,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:37:23,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:37:23,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221033404] [2023-12-16 11:37:23,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221033404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:37:23,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:37:23,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:37:23,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101442312] [2023-12-16 11:37:23,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:37:23,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:37:23,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:37:23,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:37:23,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 11:37:23,996 INFO L87 Difference]: Start difference. First operand 304 states and 487 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, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:37:28,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:32,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:36,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:40,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:43,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:37:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:37:43,484 INFO L93 Difference]: Finished difference Result 540 states and 862 transitions. [2023-12-16 11:37:43,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 11:37:43,549 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, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) Word has length 268 [2023-12-16 11:37:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:37:43,552 INFO L225 Difference]: With dead ends: 540 [2023-12-16 11:37:43,552 INFO L226 Difference]: Without dead ends: 334 [2023-12-16 11:37:43,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 11:37:43,554 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 97 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 89 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:37:43,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 486 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 19.4s Time] [2023-12-16 11:37:43,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2023-12-16 11:37:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2023-12-16 11:37:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 170 states have (on average 1.3235294117647058) internal successors, (225), 170 states have internal predecessors, (225), 132 states have call successors, (132), 3 states have call predecessors, (132), 3 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2023-12-16 11:37:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 489 transitions. [2023-12-16 11:37:43,591 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 489 transitions. Word has length 268 [2023-12-16 11:37:43,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:37:43,592 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 489 transitions. [2023-12-16 11:37:43,593 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, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 1 states have call predecessors, (44), 1 states have call successors, (44) [2023-12-16 11:37:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 489 transitions. [2023-12-16 11:37:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-12-16 11:37:43,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:37:43,597 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:43,616 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 (5)] Forceful destruction successful, exit code 0 [2023-12-16 11:37:43,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 11:37:43,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:37:43,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:37:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash -83779675, now seen corresponding path program 1 times [2023-12-16 11:37:43,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:37:43,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436629503] [2023-12-16 11:37:43,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:37:43,817 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 11:37:43,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:37:43,818 INFO L229 MonitoredProcess]: Starting monitored process 6 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 11:37:43,819 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 (6)] Waiting until timeout for monitored process [2023-12-16 11:37:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:37:44,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:37:44,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:37:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 813 proven. 114 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2023-12-16 11:37:45,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:37:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 15 proven. 114 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2023-12-16 11:37:46,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:37:46,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436629503] [2023-12-16 11:37:46,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436629503] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:37:46,773 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:37:46,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 11:37:46,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004873603] [2023-12-16 11:37:46,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:37:46,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 11:37:46,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:37:46,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 11:37:46,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:37:46,775 INFO L87 Difference]: Start difference. First operand 306 states and 489 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (82), 2 states have call predecessors, (82), 4 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Received shutdown request... [2023-12-16 11:37:49,327 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 11:37:49,330 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:37:50,350 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 11:37:50,528 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 11:37:50,540 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 [2023-12-16 11:37:50,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 530 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:37:50,542 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 57 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:37:50,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 242 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 11:37:50,543 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:37:50,544 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-12-16 11:37:50,548 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 11:37:50,553 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:37:50,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:37:50 BoogieIcfgContainer [2023-12-16 11:37:50,555 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:37:50,555 INFO L158 Benchmark]: Toolchain (without parser) took 74025.92ms. Allocated memory is still 272.6MB. Free memory was 211.1MB in the beginning and 103.1MB in the end (delta: 108.0MB). Peak memory consumption was 109.3MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,556 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:37:50,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.24ms. Allocated memory is still 272.6MB. Free memory was 210.7MB in the beginning and 193.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.26ms. Allocated memory is still 272.6MB. Free memory was 193.9MB in the beginning and 190.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,556 INFO L158 Benchmark]: Boogie Preprocessor took 66.65ms. Allocated memory is still 272.6MB. Free memory was 190.8MB in the beginning and 187.0MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,556 INFO L158 Benchmark]: RCFGBuilder took 7243.63ms. Allocated memory is still 272.6MB. Free memory was 187.0MB in the beginning and 216.8MB in the end (delta: -29.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,557 INFO L158 Benchmark]: TraceAbstraction took 66335.86ms. Allocated memory is still 272.6MB. Free memory was 215.8MB in the beginning and 103.1MB in the end (delta: 112.7MB). Peak memory consumption was 112.5MB. Max. memory is 8.0GB. [2023-12-16 11:37:50,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 187.7MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 318.24ms. Allocated memory is still 272.6MB. Free memory was 210.7MB in the beginning and 193.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.26ms. Allocated memory is still 272.6MB. Free memory was 193.9MB in the beginning and 190.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.65ms. Allocated memory is still 272.6MB. Free memory was 190.8MB in the beginning and 187.0MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 7243.63ms. Allocated memory is still 272.6MB. Free memory was 187.0MB in the beginning and 216.8MB in the end (delta: -29.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 66335.86ms. Allocated memory is still 272.6MB. Free memory was 215.8MB in the beginning and 103.1MB in the end (delta: 112.7MB). Peak memory consumption was 112.5MB. 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, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.3s, OverallIterations: 5, TraceHistogramMax: 44, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 53.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 428 SdHoareTripleChecker+Valid, 50.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 428 mSDsluCounter, 1867 SdHoareTripleChecker+Invalid, 50.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 935 mSDsCounter, 188 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 188 mSolverCounterUnsat, 932 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1606 GetRequests, 1589 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=4, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 76 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 1337 NumberOfCodeBlocks, 1337 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1600 ConstructedInterpolants, 1 QuantifiedInterpolants, 4595 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2172 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 22476/22704 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