/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-500_file-83.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 05:26:50,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 05:26:50,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 05:26:50,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 05:26:50,629 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 05:26:50,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 05:26:50,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 05:26:50,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 05:26:50,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 05:26:50,655 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 05:26:50,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 05:26:50,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 05:26:50,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 05:26:50,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 05:26:50,657 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 05:26:50,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 05:26:50,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 05:26:50,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 05:26:50,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 05:26:50,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 05:26:50,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 05:26:50,660 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 05:26:50,661 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 05:26:50,661 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 05:26:50,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 05:26:50,662 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:26:50,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 05:26:50,662 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 05:26:50,663 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 05:26:50,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 05:26:50,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 05:26:50,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 05:26:50,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 05:26:50,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 05:26:50,664 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 05:26:50,664 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 05:26:50,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 05:26:50,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 05:26:50,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 05:26:50,879 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 05:26:50,879 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 05:26:50,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-83.i [2023-12-23 05:26:52,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 05:26:52,227 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 05:26:52,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-83.i [2023-12-23 05:26:52,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257fdd86c/a74931895609467ba55cbb1352ce2a94/FLAG77edfe7df [2023-12-23 05:26:52,251 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257fdd86c/a74931895609467ba55cbb1352ce2a94 [2023-12-23 05:26:52,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 05:26:52,254 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 05:26:52,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 05:26:52,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 05:26:52,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 05:26:52,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d28c26b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52, skipping insertion in model container [2023-12-23 05:26:52,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 05:26:52,429 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-500_file-83.i[916,929] [2023-12-23 05:26:52,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:26:52,600 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 05:26:52,609 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-500_file-83.i[916,929] [2023-12-23 05:26:52,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:26:52,719 INFO L206 MainTranslator]: Completed translation [2023-12-23 05:26:52,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52 WrapperNode [2023-12-23 05:26:52,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 05:26:52,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 05:26:52,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 05:26:52,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 05:26:52,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,789 INFO L138 Inliner]: procedures = 27, calls = 118, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 662 [2023-12-23 05:26:52,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 05:26:52,790 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 05:26:52,790 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 05:26:52,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 05:26:52,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,834 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 05:26:52,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,835 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,898 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 05:26:52,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 05:26:52,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 05:26:52,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 05:26:52,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (1/1) ... [2023-12-23 05:26:52,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:26:52,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 05:26:52,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 05:26:52,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 05:26:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 05:26:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 05:26:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 05:26:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 05:26:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 05:26:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 05:26:53,098 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 05:26:53,099 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 05:27:41,034 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 05:27:41,076 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 05:27:41,077 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 05:27:41,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:27:41 BoogieIcfgContainer [2023-12-23 05:27:41,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 05:27:41,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 05:27:41,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 05:27:41,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 05:27:41,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:26:52" (1/3) ... [2023-12-23 05:27:41,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffbe571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:27:41, skipping insertion in model container [2023-12-23 05:27:41,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:26:52" (2/3) ... [2023-12-23 05:27:41,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffbe571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:27:41, skipping insertion in model container [2023-12-23 05:27:41,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:27:41" (3/3) ... [2023-12-23 05:27:41,088 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-83.i [2023-12-23 05:27:41,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 05:27:41,102 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 05:27:41,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 05:27:41,177 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;@79bfa973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 05:27:41,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 05:27:41,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 173 states have (on average 1.583815028901734) internal successors, (274), 174 states have internal predecessors, (274), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-23 05:27:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-23 05:27:41,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:27:41,276 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:27:41,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:27:41,280 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:27:41,281 INFO L85 PathProgramCache]: Analyzing trace with hash 335599151, now seen corresponding path program 1 times [2023-12-23 05:27:41,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:27:41,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617375531] [2023-12-23 05:27:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:27:41,333 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:27:41,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:27:41,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:27:41,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 05:27:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:27:45,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 05:27:45,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:27:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 6124 proven. 0 refuted. 0 times theorem prover too weak. 15716 trivial. 0 not checked. [2023-12-23 05:27:45,454 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:27:45,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:27:45,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617375531] [2023-12-23 05:27:45,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617375531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:27:45,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:27:45,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:27:45,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915511496] [2023-12-23 05:27:45,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:27:45,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 05:27:45,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:27:45,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 05:27:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:27:45,484 INFO L87 Difference]: Start difference. First operand has 281 states, 173 states have (on average 1.583815028901734) internal successors, (274), 174 states have internal predecessors, (274), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2023-12-23 05:27:47,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:27:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:27:47,617 INFO L93 Difference]: Finished difference Result 559 states and 1071 transitions. [2023-12-23 05:27:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 05:27:47,673 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) Word has length 662 [2023-12-23 05:27:47,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:27:47,681 INFO L225 Difference]: With dead ends: 559 [2023-12-23 05:27:47,681 INFO L226 Difference]: Without dead ends: 279 [2023-12-23 05:27:47,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:27:47,687 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:27:47,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-23 05:27:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-12-23 05:27:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2023-12-23 05:27:47,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 172 states have (on average 1.558139534883721) internal successors, (268), 172 states have internal predecessors, (268), 105 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-23 05:27:47,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 478 transitions. [2023-12-23 05:27:47,749 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 478 transitions. Word has length 662 [2023-12-23 05:27:47,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:27:47,750 INFO L495 AbstractCegarLoop]: Abstraction has 279 states and 478 transitions. [2023-12-23 05:27:47,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 2 states have call successors, (105), 2 states have call predecessors, (105), 2 states have return successors, (105), 2 states have call predecessors, (105), 2 states have call successors, (105) [2023-12-23 05:27:47,750 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 478 transitions. [2023-12-23 05:27:47,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-23 05:27:47,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:27:47,759 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:27:47,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 05:27:47,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:27:47,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:27:47,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:27:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash 772130371, now seen corresponding path program 1 times [2023-12-23 05:27:47,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:27:47,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1677138955] [2023-12-23 05:27:47,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:27:47,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:27:47,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:27:47,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 05:27:47,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 05:27:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:27:52,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:27:52,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:27:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 05:27:52,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:27:52,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:27:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1677138955] [2023-12-23 05:27:52,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1677138955] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:27:52,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:27:52,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:27:52,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733850106] [2023-12-23 05:27:52,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:27:52,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:27:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:27:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:27:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:27:52,629 INFO L87 Difference]: Start difference. First operand 279 states and 478 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 05:27:55,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:27:57,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:27:57,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:27:57,318 INFO L93 Difference]: Finished difference Result 725 states and 1248 transitions. [2023-12-23 05:27:57,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:27:57,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 662 [2023-12-23 05:27:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:27:57,328 INFO L225 Difference]: With dead ends: 725 [2023-12-23 05:27:57,328 INFO L226 Difference]: Without dead ends: 447 [2023-12-23 05:27:57,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:27:57,330 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 277 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 05:27:57,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 940 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 05:27:57,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-12-23 05:27:57,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 444. [2023-12-23 05:27:57,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 292 states have (on average 1.6095890410958904) internal successors, (470), 293 states have internal predecessors, (470), 149 states have call successors, (149), 2 states have call predecessors, (149), 2 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-23 05:27:57,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 768 transitions. [2023-12-23 05:27:57,380 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 768 transitions. Word has length 662 [2023-12-23 05:27:57,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:27:57,384 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 768 transitions. [2023-12-23 05:27:57,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 05:27:57,387 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 768 transitions. [2023-12-23 05:27:57,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-23 05:27:57,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:27:57,399 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:27:57,475 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 [2023-12-23 05:27:57,612 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 [2023-12-23 05:27:57,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:27:57,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:27:57,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1648149377, now seen corresponding path program 1 times [2023-12-23 05:27:57,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:27:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [253305596] [2023-12-23 05:27:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:27:57,615 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:27:57,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:27:57,616 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) [2023-12-23 05:27:57,618 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 [2023-12-23 05:28:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:28:01,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:28:01,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:28:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 10914 proven. 171 refuted. 0 times theorem prover too weak. 10755 trivial. 0 not checked. [2023-12-23 05:28:10,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:28:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 141 proven. 171 refuted. 0 times theorem prover too weak. 21528 trivial. 0 not checked. [2023-12-23 05:28:15,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:28:15,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [253305596] [2023-12-23 05:28:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [253305596] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:28:15,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:28:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:28:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999243720] [2023-12-23 05:28:15,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:28:15,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:28:15,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:28:15,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:28:15,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:28:15,498 INFO L87 Difference]: Start difference. First operand 444 states and 768 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2023-12-23 05:28:28,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:28:32,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:28:36,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:28:39,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:28:39,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:28:39,272 INFO L93 Difference]: Finished difference Result 897 states and 1544 transitions. [2023-12-23 05:28:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:28:39,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) Word has length 662 [2023-12-23 05:28:39,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:28:39,331 INFO L225 Difference]: With dead ends: 897 [2023-12-23 05:28:39,331 INFO L226 Difference]: Without dead ends: 454 [2023-12-23 05:28:39,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1316 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:28:39,333 INFO L413 NwaCegarLoop]: 353 mSDtfsCounter, 235 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 33 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:28:39,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 848 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 544 Invalid, 3 Unknown, 0 Unchecked, 23.3s Time] [2023-12-23 05:28:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-23 05:28:39,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 448. [2023-12-23 05:28:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 295 states have (on average 1.5627118644067797) internal successors, (461), 296 states have internal predecessors, (461), 149 states have call successors, (149), 3 states have call predecessors, (149), 3 states have return successors, (149), 148 states have call predecessors, (149), 149 states have call successors, (149) [2023-12-23 05:28:39,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 759 transitions. [2023-12-23 05:28:39,377 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 759 transitions. Word has length 662 [2023-12-23 05:28:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:28:39,378 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 759 transitions. [2023-12-23 05:28:39,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 2 states have call successors, (162), 2 states have call predecessors, (162), 4 states have return successors, (163), 2 states have call predecessors, (163), 2 states have call successors, (163) [2023-12-23 05:28:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 759 transitions. [2023-12-23 05:28:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-23 05:28:39,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:28:39,384 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:28:39,459 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 [2023-12-23 05:28:39,588 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 [2023-12-23 05:28:39,589 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:28:39,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:28:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1390229507, now seen corresponding path program 1 times [2023-12-23 05:28:39,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:28:39,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041665566] [2023-12-23 05:28:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:28:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:28:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:28:39,591 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) [2023-12-23 05:28:39,596 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 [2023-12-23 05:28:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:28:43,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:28:43,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:28:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 21840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21840 trivial. 0 not checked. [2023-12-23 05:28:58,919 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:28:58,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:28:58,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041665566] [2023-12-23 05:28:58,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041665566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:28:58,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:28:58,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:28:58,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816605270] [2023-12-23 05:28:58,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:28:58,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:28:58,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:28:58,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:28:58,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:28:58,921 INFO L87 Difference]: Start difference. First operand 448 states and 759 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 05:29:00,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:29:02,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:29:02,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:29:02,371 INFO L93 Difference]: Finished difference Result 1342 states and 2275 transitions. [2023-12-23 05:29:02,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:29:02,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) Word has length 662 [2023-12-23 05:29:02,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:29:02,378 INFO L225 Difference]: With dead ends: 1342 [2023-12-23 05:29:02,378 INFO L226 Difference]: Without dead ends: 895 [2023-12-23 05:29:02,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 661 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:29:02,380 INFO L413 NwaCegarLoop]: 467 mSDtfsCounter, 157 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:29:02,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 931 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-23 05:29:02,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-12-23 05:29:02,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 893. [2023-12-23 05:29:02,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 893 states, 588 states have (on average 1.5612244897959184) internal successors, (918), 590 states have internal predecessors, (918), 298 states have call successors, (298), 6 states have call predecessors, (298), 6 states have return successors, (298), 296 states have call predecessors, (298), 298 states have call successors, (298) [2023-12-23 05:29:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1514 transitions. [2023-12-23 05:29:02,462 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1514 transitions. Word has length 662 [2023-12-23 05:29:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:29:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 893 states and 1514 transitions. [2023-12-23 05:29:02,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 1 states have call successors, (105), 1 states have call predecessors, (105), 1 states have return successors, (105), 1 states have call predecessors, (105), 1 states have call successors, (105) [2023-12-23 05:29:02,464 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1514 transitions. [2023-12-23 05:29:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-12-23 05:29:02,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:29:02,469 INFO L195 NwaCegarLoop]: trace histogram [105, 105, 105, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:29:02,552 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 [2023-12-23 05:29:02,684 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 [2023-12-23 05:29:02,685 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:29:02,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:29:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash 360870209, now seen corresponding path program 1 times [2023-12-23 05:29:02,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:29:02,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751890237] [2023-12-23 05:29:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:29:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:29:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:29:02,687 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) [2023-12-23 05:29:02,722 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 [2023-12-23 05:29:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:29:06,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 05:29:06,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:34:27,858 WARN L293 SmtUtils]: Spent 40.71s on a formula simplification that was a NOOP. DAG size: 92 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)