/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-10_file-60.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 01:29:42,006 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 01:29:42,081 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 01:29:42,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 01:29:42,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 01:29:42,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 01:29:42,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 01:29:42,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 01:29:42,115 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 01:29:42,118 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 01:29:42,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 01:29:42,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 01:29:42,119 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 01:29:42,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 01:29:42,121 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 01:29:42,121 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 01:29:42,121 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 01:29:42,122 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 01:29:42,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 01:29:42,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 01:29:42,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 01:29:42,123 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 01:29:42,124 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 01:29:42,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 01:29:42,125 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 01:29:42,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:29:42,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 01:29:42,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 01:29:42,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 01:29:42,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 01:29:42,128 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 01:29:42,128 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 01:29:42,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 01:29:42,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 01:29:42,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 01:29:42,351 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 01:29:42,351 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 01:29:42,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-60.i [2023-12-23 01:29:43,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 01:29:43,605 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 01:29:43,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-60.i [2023-12-23 01:29:43,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4689bd3/eaf43d75cab84bde899e4be817a27270/FLAG74b80a461 [2023-12-23 01:29:43,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b4689bd3/eaf43d75cab84bde899e4be817a27270 [2023-12-23 01:29:43,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 01:29:43,982 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 01:29:43,983 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 01:29:43,983 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 01:29:43,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 01:29:43,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:29:43" (1/1) ... [2023-12-23 01:29:43,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c8a687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:43, skipping insertion in model container [2023-12-23 01:29:43,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 01:29:43" (1/1) ... [2023-12-23 01:29:44,012 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 01:29:44,112 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-10_file-60.i[915,928] [2023-12-23 01:29:44,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:29:44,165 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 01:29:44,181 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-10_file-60.i[915,928] [2023-12-23 01:29:44,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 01:29:44,245 INFO L206 MainTranslator]: Completed translation [2023-12-23 01:29:44,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44 WrapperNode [2023-12-23 01:29:44,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 01:29:44,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 01:29:44,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 01:29:44,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 01:29:44,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,312 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 195 [2023-12-23 01:29:44,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 01:29:44,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 01:29:44,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 01:29:44,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 01:29:44,320 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,352 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 01:29:44,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,371 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 01:29:44,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 01:29:44,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 01:29:44,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 01:29:44,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (1/1) ... [2023-12-23 01:29:44,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 01:29:44,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 01:29:44,426 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 01:29:44,448 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 01:29:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 01:29:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 01:29:44,466 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 01:29:44,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 01:29:44,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 01:29:44,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 01:29:44,556 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 01:29:44,559 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 01:30:00,505 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 01:30:00,603 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 01:30:00,604 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 01:30:00,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:30:00 BoogieIcfgContainer [2023-12-23 01:30:00,604 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 01:30:00,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 01:30:00,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 01:30:00,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 01:30:00,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 01:29:43" (1/3) ... [2023-12-23 01:30:00,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eafef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:30:00, skipping insertion in model container [2023-12-23 01:30:00,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 01:29:44" (2/3) ... [2023-12-23 01:30:00,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50eafef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 01:30:00, skipping insertion in model container [2023-12-23 01:30:00,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 01:30:00" (3/3) ... [2023-12-23 01:30:00,626 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-60.i [2023-12-23 01:30:00,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 01:30:00,656 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 01:30:00,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 01:30:00,734 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;@43e2fcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 01:30:00,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 01:30:00,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 01:30:00,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-23 01:30:00,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:30:00,755 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:00,755 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:30:00,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:30:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1379462239, now seen corresponding path program 1 times [2023-12-23 01:30:00,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:30:00,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72943570] [2023-12-23 01:30:00,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:30:00,770 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 01:30:00,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:30:00,775 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 01:30:00,776 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 01:30:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:30:01,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 01:30:01,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:30:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 874 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2023-12-23 01:30:02,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:30:02,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:30:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72943570] [2023-12-23 01:30:02,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72943570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:30:02,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:30:02,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 01:30:02,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958364829] [2023-12-23 01:30:02,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:30:02,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 01:30:02,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:30:02,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 01:30:02,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 01:30:02,064 INFO L87 Difference]: Start difference. First operand has 77 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 01:30:06,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:06,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:30:06,799 INFO L93 Difference]: Finished difference Result 151 states and 272 transitions. [2023-12-23 01:30:07,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 01:30:07,064 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 183 [2023-12-23 01:30:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:30:07,069 INFO L225 Difference]: With dead ends: 151 [2023-12-23 01:30:07,069 INFO L226 Difference]: Without dead ends: 75 [2023-12-23 01:30:07,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 182 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 01:30:07,074 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 01:30:07,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 01:30:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-23 01:30:07,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-23 01:30:07,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-12-23 01:30:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 116 transitions. [2023-12-23 01:30:07,110 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 116 transitions. Word has length 183 [2023-12-23 01:30:07,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:30:07,111 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 116 transitions. [2023-12-23 01:30:07,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-12-23 01:30:07,111 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 116 transitions. [2023-12-23 01:30:07,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-23 01:30:07,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:30:07,115 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:30:07,156 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 01:30:07,340 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 01:30:07,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:30:07,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:30:07,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1864677167, now seen corresponding path program 1 times [2023-12-23 01:30:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:30:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54662708] [2023-12-23 01:30:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:30:07,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 01:30:07,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:30:07,345 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 01:30:07,374 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 01:30:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:30:08,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 01:30:08,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:30:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 01:30:18,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:30:18,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:30:18,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54662708] [2023-12-23 01:30:18,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54662708] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:30:18,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:30:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 01:30:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172282293] [2023-12-23 01:30:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:30:18,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 01:30:18,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:30:18,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 01:30:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 01:30:18,539 INFO L87 Difference]: Start difference. First operand 75 states and 116 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:30:25,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:29,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:34,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.95s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:38,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:43,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:47,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:54,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:30:58,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:03,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.98s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:07,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:12,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:16,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:20,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:20,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:31:20,542 INFO L93 Difference]: Finished difference Result 226 states and 351 transitions. [2023-12-23 01:31:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 01:31:20,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 183 [2023-12-23 01:31:20,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:31:20,834 INFO L225 Difference]: With dead ends: 226 [2023-12-23 01:31:20,834 INFO L226 Difference]: Without dead ends: 152 [2023-12-23 01:31:20,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 01:31:20,835 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 65 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 63 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.8s IncrementalHoareTripleChecker+Time [2023-12-23 01:31:20,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 272 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 67 Invalid, 13 Unknown, 0 Unchecked, 61.8s Time] [2023-12-23 01:31:20,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-23 01:31:20,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 137. [2023-12-23 01:31:20,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 74 states have internal predecessors, (91), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 01:31:20,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 211 transitions. [2023-12-23 01:31:20,858 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 211 transitions. Word has length 183 [2023-12-23 01:31:20,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:31:20,858 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 211 transitions. [2023-12-23 01:31:20,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:31:20,859 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 211 transitions. [2023-12-23 01:31:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-23 01:31:20,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:31:20,861 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:20,886 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 01:31:21,088 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 01:31:21,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:31:21,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:31:21,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1306047180, now seen corresponding path program 1 times [2023-12-23 01:31:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:31:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629965893] [2023-12-23 01:31:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:31:21,090 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 01:31:21,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:31:21,096 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 01:31:21,099 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 01:31:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:31:22,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 01:31:22,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 01:31:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2023-12-23 01:31:22,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 01:31:22,307 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 01:31:22,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629965893] [2023-12-23 01:31:22,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629965893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 01:31:22,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 01:31:22,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 01:31:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056822594] [2023-12-23 01:31:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 01:31:22,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 01:31:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 01:31:22,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 01:31:22,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 01:31:22,309 INFO L87 Difference]: Start difference. First operand 137 states and 211 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:31:27,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:31,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:35,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 01:31:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 01:31:35,677 INFO L93 Difference]: Finished difference Result 222 states and 341 transitions. [2023-12-23 01:31:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 01:31:35,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 185 [2023-12-23 01:31:35,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 01:31:35,680 INFO L225 Difference]: With dead ends: 222 [2023-12-23 01:31:35,680 INFO L226 Difference]: Without dead ends: 148 [2023-12-23 01:31:35,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 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 01:31:35,681 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 12 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-23 01:31:35,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 216 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 3 Unknown, 0 Unchecked, 13.4s Time] [2023-12-23 01:31:35,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-23 01:31:35,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 142. [2023-12-23 01:31:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 79 states have (on average 1.240506329113924) internal successors, (98), 79 states have internal predecessors, (98), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-23 01:31:35,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 218 transitions. [2023-12-23 01:31:35,708 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 218 transitions. Word has length 185 [2023-12-23 01:31:35,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 01:31:35,709 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 218 transitions. [2023-12-23 01:31:35,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2023-12-23 01:31:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 218 transitions. [2023-12-23 01:31:35,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-23 01:31:35,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 01:31:35,712 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:35,747 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 (4)] Ended with exit code 0 [2023-12-23 01:31:35,937 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 01:31:35,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 01:31:35,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 01:31:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1213912754, now seen corresponding path program 1 times [2023-12-23 01:31:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 01:31:35,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516868075] [2023-12-23 01:31:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 01:31:35,939 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 01:31:35,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 01:31:35,945 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 01:31:35,946 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 01:31:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 01:31:37,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-23 01:31:37,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 01:44:24,181 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 01:44:24,213 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 01:44:24,213 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 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 01:44:24,213 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 [2023-12-23 01:44:24,384 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 01:44:24,384 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 186 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-22-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. [2023-12-23 01:44:24,388 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-23 01:44:24,390 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 01:44:24,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 01:44:24 BoogieIcfgContainer [2023-12-23 01:44:24,391 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 01:44:24,392 INFO L158 Benchmark]: Toolchain (without parser) took 880409.13ms. Allocated memory was 181.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 143.9MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2023-12-23 01:44:24,392 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 181.4MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 01:44:24,392 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.91ms. Allocated memory is still 181.4MB. Free memory was 143.5MB in the beginning and 127.9MB in the end (delta: 15.6MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 01:44:24,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.88ms. Allocated memory is still 181.4MB. Free memory was 127.9MB in the beginning and 125.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 01:44:24,392 INFO L158 Benchmark]: Boogie Preprocessor took 73.60ms. Allocated memory is still 181.4MB. Free memory was 125.2MB in the beginning and 122.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 01:44:24,393 INFO L158 Benchmark]: RCFGBuilder took 16217.50ms. Allocated memory is still 181.4MB. Free memory was 122.1MB in the beginning and 95.9MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-23 01:44:24,393 INFO L158 Benchmark]: TraceAbstraction took 863771.13ms. Allocated memory was 181.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 94.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-23 01:44:24,394 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 181.4MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 262.91ms. Allocated memory is still 181.4MB. Free memory was 143.5MB in the beginning and 127.9MB in the end (delta: 15.6MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.88ms. Allocated memory is still 181.4MB. Free memory was 127.9MB in the beginning and 125.2MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 73.60ms. Allocated memory is still 181.4MB. Free memory was 125.2MB in the beginning and 122.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 16217.50ms. Allocated memory is still 181.4MB. Free memory was 122.1MB in the beginning and 95.9MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 863771.13ms. Allocated memory was 181.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 94.8MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.7GB. 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 186 with TraceHistMax 30,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-2-2-2-2-2-2-2-2-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-22-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 863.7s, OverallIterations: 4, TraceHistogramMax: 30, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 80.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 79.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 77 mSDsluCounter, 601 SdHoareTripleChecker+Invalid, 77.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 279 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 322 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 549 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 551 NumberOfCodeBlocks, 551 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 548 ConstructedInterpolants, 0 QuantifiedInterpolants, 2806 SizeOfPredicates, 5 NumberOfNonLiveVariables, 923 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5220/5220 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