/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-250_file-84.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:09:43,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:09:43,384 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 11:09:43,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:09:43,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:09:43,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:09:43,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:09:43,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:09:43,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:09:43,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:09:43,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:09:43,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:09:43,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:09:43,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:09:43,423 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:09:43,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:09:43,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:09:43,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:09:43,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:09:43,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:09:43,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:09:43,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:09:43,427 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:09:43,428 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:09:43,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:09:43,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:09:43,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:09:43,428 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:09:43,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:09:43,429 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:09:43,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:09:43,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:09:43,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:09:43,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:09:43,686 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:09:43,687 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:09:43,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-84.i [2023-12-16 11:09:44,718 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:09:44,906 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:09:44,907 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-84.i [2023-12-16 11:09:44,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afc90cf6b/74a447b49bf642d6ba9e06281cb9dba2/FLAG1a9113854 [2023-12-16 11:09:44,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afc90cf6b/74a447b49bf642d6ba9e06281cb9dba2 [2023-12-16 11:09:44,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:09:44,932 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:09:44,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:09:44,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:09:44,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:09:44,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:09:44" (1/1) ... [2023-12-16 11:09:44,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76de6812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:44, skipping insertion in model container [2023-12-16 11:09:44,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:09:44" (1/1) ... [2023-12-16 11:09:44,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:09:45,114 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-250_file-84.i[916,929] [2023-12-16 11:09:45,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:09:45,217 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:09:45,225 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-250_file-84.i[916,929] [2023-12-16 11:09:45,276 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:09:45,299 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:09:45,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45 WrapperNode [2023-12-16 11:09:45,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:09:45,301 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:09:45,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:09:45,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:09:45,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,380 INFO L138 Inliner]: procedures = 27, calls = 122, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 531 [2023-12-16 11:09:45,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:09:45,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:09:45,381 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:09:45,381 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:09:45,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,408 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 11:09:45,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,409 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,446 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,474 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:09:45,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:09:45,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:09:45,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:09:45,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (1/1) ... [2023-12-16 11:09:45,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:09:45,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:09:45,530 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 11:09:45,555 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 11:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:09:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:09:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:09:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:09:45,684 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:09:45,686 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:09:56,139 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:09:56,202 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:09:56,203 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:09:56,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:09:56 BoogieIcfgContainer [2023-12-16 11:09:56,203 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:09:56,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:09:56,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:09:56,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:09:56,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:09:44" (1/3) ... [2023-12-16 11:09:56,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0e73d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:09:56, skipping insertion in model container [2023-12-16 11:09:56,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:09:45" (2/3) ... [2023-12-16 11:09:56,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0e73d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:09:56, skipping insertion in model container [2023-12-16 11:09:56,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:09:56" (3/3) ... [2023-12-16 11:09:56,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-84.i [2023-12-16 11:09:56,221 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:09:56,221 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:09:56,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:09:56,265 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;@6754fdba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:09:56,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:09:56,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 125 states have internal predecessors, (181), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-16 11:09:56,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2023-12-16 11:09:56,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:56,301 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:56,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:56,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash -956253115, now seen corresponding path program 1 times [2023-12-16 11:09:56,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:56,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485786614] [2023-12-16 11:09:56,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:56,321 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 11:09:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:56,324 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 11:09:56,325 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 11:09:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:56,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:09:56,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:57,097 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 11480 proven. 0 refuted. 0 times theorem prover too weak. 12064 trivial. 0 not checked. [2023-12-16 11:09:57,097 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:57,098 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:57,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485786614] [2023-12-16 11:09:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485786614] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:57,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:57,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:09:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923462202] [2023-12-16 11:09:57,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:09:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:57,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:09:57,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:09:57,147 INFO L87 Difference]: Start difference. First operand has 236 states, 124 states have (on average 1.4596774193548387) internal successors, (181), 125 states have internal predecessors, (181), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-12-16 11:09:57,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:57,314 INFO L93 Difference]: Finished difference Result 469 states and 905 transitions. [2023-12-16 11:09:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:09:57,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) Word has length 647 [2023-12-16 11:09:57,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:57,335 INFO L225 Difference]: With dead ends: 469 [2023-12-16 11:09:57,335 INFO L226 Difference]: Without dead ends: 234 [2023-12-16 11:09:57,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 646 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 11:09:57,346 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:57,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 391 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 11:09:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-16 11:09:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-16 11:09:57,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 123 states have (on average 1.4308943089430894) internal successors, (176), 123 states have internal predecessors, (176), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2023-12-16 11:09:57,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 394 transitions. [2023-12-16 11:09:57,412 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 394 transitions. Word has length 647 [2023-12-16 11:09:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:57,413 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 394 transitions. [2023-12-16 11:09:57,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (109), 2 states have call predecessors, (109), 2 states have return successors, (109), 2 states have call predecessors, (109), 2 states have call successors, (109) [2023-12-16 11:09:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 394 transitions. [2023-12-16 11:09:57,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2023-12-16 11:09:57,425 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:57,425 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:57,443 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 [2023-12-16 11:09:57,640 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 11:09:57,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:57,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:57,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1026990589, now seen corresponding path program 1 times [2023-12-16 11:09:57,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:57,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484971321] [2023-12-16 11:09:57,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:57,643 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 11:09:57,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:57,645 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 11:09:57,653 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 11:09:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:58,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:09:58,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:09:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2023-12-16 11:09:58,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:09:58,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:09:58,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484971321] [2023-12-16 11:09:58,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484971321] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:09:58,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:09:58,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:09:58,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500890208] [2023-12-16 11:09:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:09:58,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:09:58,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:09:58,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:09:58,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:09:58,284 INFO L87 Difference]: Start difference. First operand 234 states and 394 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:09:58,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:09:58,601 INFO L93 Difference]: Finished difference Result 602 states and 1014 transitions. [2023-12-16 11:09:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:09:58,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 647 [2023-12-16 11:09:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:09:58,606 INFO L225 Difference]: With dead ends: 602 [2023-12-16 11:09:58,607 INFO L226 Difference]: Without dead ends: 369 [2023-12-16 11:09:58,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 645 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 11:09:58,608 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 222 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:09:58,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 889 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 11:09:58,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-12-16 11:09:58,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 366. [2023-12-16 11:09:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 205 states have (on average 1.4634146341463414) internal successors, (300), 206 states have internal predecessors, (300), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 157 states have call predecessors, (158), 158 states have call successors, (158) [2023-12-16 11:09:58,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 616 transitions. [2023-12-16 11:09:58,650 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 616 transitions. Word has length 647 [2023-12-16 11:09:58,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:09:58,652 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 616 transitions. [2023-12-16 11:09:58,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:09:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 616 transitions. [2023-12-16 11:09:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2023-12-16 11:09:58,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:09:58,662 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:09:58,681 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 11:09:58,878 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 11:09:58,878 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:09:58,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:09:58,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2056349887, now seen corresponding path program 1 times [2023-12-16 11:09:58,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:09:58,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647998112] [2023-12-16 11:09:58,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:09:58,881 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 11:09:58,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:09:58,883 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 11:09:58,914 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 11:09:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:09:59,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 11:09:59,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:07,477 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2023-12-16 11:10:07,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:07,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:07,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647998112] [2023-12-16 11:10:07,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647998112] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:07,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:10:07,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:10:07,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814923044] [2023-12-16 11:10:07,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:07,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:10:07,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:10:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:10:07,489 INFO L87 Difference]: Start difference. First operand 366 states and 616 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:10:07,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:07,749 INFO L93 Difference]: Finished difference Result 1096 states and 1846 transitions. [2023-12-16 11:10:07,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:10:07,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 647 [2023-12-16 11:10:07,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:07,759 INFO L225 Difference]: With dead ends: 1096 [2023-12-16 11:10:07,759 INFO L226 Difference]: Without dead ends: 731 [2023-12-16 11:10:07,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 645 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 11:10:07,763 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 88 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:07,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 771 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 11:10:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-16 11:10:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 725. [2023-12-16 11:10:07,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 404 states have (on average 1.4554455445544554) internal successors, (588), 406 states have internal predecessors, (588), 316 states have call successors, (316), 4 states have call predecessors, (316), 4 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-16 11:10:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1220 transitions. [2023-12-16 11:10:07,847 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1220 transitions. Word has length 647 [2023-12-16 11:10:07,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:07,848 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 1220 transitions. [2023-12-16 11:10:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:10:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1220 transitions. [2023-12-16 11:10:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2023-12-16 11:10:07,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:07,853 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:07,870 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 11:10:08,070 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 11:10:08,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:08,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:08,072 INFO L85 PathProgramCache]: Analyzing trace with hash 2019762691, now seen corresponding path program 1 times [2023-12-16 11:10:08,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:08,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004327977] [2023-12-16 11:10:08,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:08,073 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 11:10:08,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:08,080 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 11:10:08,081 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 11:10:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:08,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 11:10:08,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 9624 proven. 90 refuted. 0 times theorem prover too weak. 13830 trivial. 0 not checked. [2023-12-16 11:10:09,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 234 proven. 90 refuted. 0 times theorem prover too weak. 23220 trivial. 0 not checked. [2023-12-16 11:10:10,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004327977] [2023-12-16 11:10:10,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004327977] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:10:10,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:10:10,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-16 11:10:10,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283657874] [2023-12-16 11:10:10,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:10:10,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 11:10:10,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:10,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 11:10:10,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:10:10,669 INFO L87 Difference]: Start difference. First operand 725 states and 1220 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2023-12-16 11:10:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:13,058 INFO L93 Difference]: Finished difference Result 1467 states and 2453 transitions. [2023-12-16 11:10:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 11:10:13,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) Word has length 647 [2023-12-16 11:10:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:13,074 INFO L225 Difference]: With dead ends: 1467 [2023-12-16 11:10:13,074 INFO L226 Difference]: Without dead ends: 743 [2023-12-16 11:10:13,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1286 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:10:13,076 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 338 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:13,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 592 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 11:10:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-12-16 11:10:13,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 731. [2023-12-16 11:10:13,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 408 states have (on average 1.4166666666666667) internal successors, (578), 410 states have internal predecessors, (578), 316 states have call successors, (316), 6 states have call predecessors, (316), 6 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-16 11:10:13,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1210 transitions. [2023-12-16 11:10:13,150 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1210 transitions. Word has length 647 [2023-12-16 11:10:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:13,152 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 1210 transitions. [2023-12-16 11:10:13,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2023-12-16 11:10:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1210 transitions. [2023-12-16 11:10:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2023-12-16 11:10:13,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:13,156 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:13,176 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 11:10:13,373 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 11:10:13,374 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:13,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1568181082, now seen corresponding path program 1 times [2023-12-16 11:10:13,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421722387] [2023-12-16 11:10:13,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:13,376 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 11:10:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:13,377 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 11:10:13,379 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 11:10:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:13,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:10:13,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 9624 proven. 90 refuted. 0 times theorem prover too weak. 13830 trivial. 0 not checked. [2023-12-16 11:10:15,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:10:15,991 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 234 proven. 90 refuted. 0 times theorem prover too weak. 23220 trivial. 0 not checked. [2023-12-16 11:10:15,992 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1421722387] [2023-12-16 11:10:15,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1421722387] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:10:15,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:10:15,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 11:10:15,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656232559] [2023-12-16 11:10:15,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:10:15,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 11:10:15,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 11:10:15,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:10:15,995 INFO L87 Difference]: Start difference. First operand 731 states and 1210 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2023-12-16 11:10:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:20,649 INFO L93 Difference]: Finished difference Result 1773 states and 2934 transitions. [2023-12-16 11:10:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 11:10:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) Word has length 648 [2023-12-16 11:10:20,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:20,655 INFO L225 Difference]: With dead ends: 1773 [2023-12-16 11:10:20,655 INFO L226 Difference]: Without dead ends: 1043 [2023-12-16 11:10:20,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1306 GetRequests, 1288 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-16 11:10:20,658 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 500 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:20,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1319 Invalid, 1606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 11:10:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-12-16 11:10:20,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 731. [2023-12-16 11:10:20,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 408 states have (on average 1.4068627450980393) internal successors, (574), 410 states have internal predecessors, (574), 316 states have call successors, (316), 6 states have call predecessors, (316), 6 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-16 11:10:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1206 transitions. [2023-12-16 11:10:20,768 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1206 transitions. Word has length 648 [2023-12-16 11:10:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:20,769 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 1206 transitions. [2023-12-16 11:10:20,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (139), 2 states have call predecessors, (139), 4 states have return successors, (140), 2 states have call predecessors, (140), 2 states have call successors, (140) [2023-12-16 11:10:20,769 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1206 transitions. [2023-12-16 11:10:20,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2023-12-16 11:10:20,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:20,773 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:20,790 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 11:10:20,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 11:10:20,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:20,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash 288317404, now seen corresponding path program 1 times [2023-12-16 11:10:20,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:20,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887569491] [2023-12-16 11:10:20,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:20,990 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 11:10:20,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:21,001 INFO L229 MonitoredProcess]: Starting monitored process 7 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 11:10:21,058 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 (7)] Waiting until timeout for monitored process [2023-12-16 11:10:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:21,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:10:21,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:10:21,664 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2023-12-16 11:10:21,664 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:10:21,664 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:10:21,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887569491] [2023-12-16 11:10:21,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887569491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:10:21,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:10:21,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:10:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402576332] [2023-12-16 11:10:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:10:21,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:10:21,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:10:21,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:10:21,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:10:21,666 INFO L87 Difference]: Start difference. First operand 731 states and 1206 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:10:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:10:21,811 INFO L93 Difference]: Finished difference Result 1461 states and 2411 transitions. [2023-12-16 11:10:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:10:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 648 [2023-12-16 11:10:21,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:10:21,826 INFO L225 Difference]: With dead ends: 1461 [2023-12-16 11:10:21,826 INFO L226 Difference]: Without dead ends: 731 [2023-12-16 11:10:21,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 646 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 11:10:21,830 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 385 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 11:10:21,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 383 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 11:10:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-12-16 11:10:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 731. [2023-12-16 11:10:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 408 states have (on average 1.3970588235294117) internal successors, (570), 410 states have internal predecessors, (570), 316 states have call successors, (316), 6 states have call predecessors, (316), 6 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2023-12-16 11:10:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1202 transitions. [2023-12-16 11:10:21,955 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1202 transitions. Word has length 648 [2023-12-16 11:10:21,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:10:21,956 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 1202 transitions. [2023-12-16 11:10:21,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2023-12-16 11:10:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1202 transitions. [2023-12-16 11:10:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2023-12-16 11:10:21,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:10:21,960 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:10:21,995 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 (7)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:22,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 11:10:22,180 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:10:22,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:10:22,181 INFO L85 PathProgramCache]: Analyzing trace with hash 2063324766, now seen corresponding path program 1 times [2023-12-16 11:10:22,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:10:22,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1466660833] [2023-12-16 11:10:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:10:22,182 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 11:10:22,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:10:22,183 INFO L229 MonitoredProcess]: Starting monitored process 8 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 11:10:22,184 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 (8)] Waiting until timeout for monitored process [2023-12-16 11:10:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:10:23,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-16 11:10:23,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:10:54,546 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 11:10:54,546 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 (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:10:54,552 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:10:54,574 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 (8)] Forceful destruction successful, exit code 0 [2023-12-16 11:10:54,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 11:10:54,762 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 649 with TraceHistMax 109,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-1 context. [2023-12-16 11:10:54,778 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:10:54,780 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:10:54,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:10:54 BoogieIcfgContainer [2023-12-16 11:10:54,783 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:10:54,784 INFO L158 Benchmark]: Toolchain (without parser) took 69851.51ms. Allocated memory was 177.2MB in the beginning and 225.4MB in the end (delta: 48.2MB). Free memory was 144.0MB in the beginning and 173.1MB in the end (delta: -29.1MB). Peak memory consumption was 20.5MB. Max. memory is 8.0GB. [2023-12-16 11:10:54,786 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:10:54,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.21ms. Allocated memory is still 177.2MB. Free memory was 143.5MB in the beginning and 118.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 11:10:54,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.01ms. Allocated memory is still 177.2MB. Free memory was 118.0MB in the beginning and 113.6MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:10:54,786 INFO L158 Benchmark]: Boogie Preprocessor took 93.39ms. Allocated memory is still 177.2MB. Free memory was 113.6MB in the beginning and 106.8MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 11:10:54,786 INFO L158 Benchmark]: RCFGBuilder took 10728.14ms. Allocated memory is still 177.2MB. Free memory was 106.4MB in the beginning and 123.5MB in the end (delta: -17.1MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. [2023-12-16 11:10:54,787 INFO L158 Benchmark]: TraceAbstraction took 58578.70ms. Allocated memory was 177.2MB in the beginning and 225.4MB in the end (delta: 48.2MB). Free memory was 122.4MB in the beginning and 173.1MB in the end (delta: -50.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:10:54,788 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 177.2MB. Free memory is still 135.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 367.21ms. Allocated memory is still 177.2MB. Free memory was 143.5MB in the beginning and 118.4MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 80.01ms. Allocated memory is still 177.2MB. Free memory was 118.0MB in the beginning and 113.6MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.39ms. Allocated memory is still 177.2MB. Free memory was 113.6MB in the beginning and 106.8MB in the end (delta: 6.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 10728.14ms. Allocated memory is still 177.2MB. Free memory was 106.4MB in the beginning and 123.5MB in the end (delta: -17.1MB). Peak memory consumption was 37.3MB. Max. memory is 8.0GB. * TraceAbstraction took 58578.70ms. Allocated memory was 177.2MB in the beginning and 225.4MB in the end (delta: 48.2MB). Free memory was 122.4MB in the beginning and 173.1MB in the end (delta: -50.7MB). There was no memory consumed. 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 NwaCegarLoop was analyzing trace of length 649 with TraceHistMax 109,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-4-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-4-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.5s, OverallIterations: 7, TraceHistogramMax: 109, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1689 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1533 mSDsluCounter, 4345 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1892 mSDsCounter, 557 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1825 IncrementalHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 557 mSolverCounterUnsat, 2453 mSDtfsCounter, 1825 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5187 GetRequests, 5156 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=4, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 333 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 3884 NumberOfCodeBlocks, 3884 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 5171 ConstructedInterpolants, 0 QuantifiedInterpolants, 10601 SizeOfPredicates, 8 NumberOfNonLiveVariables, 6088 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 187992/188352 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