/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:37:59,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:37:59,481 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 11:37:59,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:37:59,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:37:59,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:37:59,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:37:59,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:37:59,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:37:59,513 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:37:59,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:37:59,514 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:37:59,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:37:59,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:37:59,515 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:37:59,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:37:59,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:37:59,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:37:59,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:37:59,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:37:59,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:37:59,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:37:59,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:37:59,517 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:37:59,517 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:37:59,517 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:37:59,518 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:37:59,518 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:37:59,518 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:37:59,518 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:37:59,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:37:59,519 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:37:59,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:37:59,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:37:59,519 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:37:59,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:37:59,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:37:59,520 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:37:59,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:37:59,521 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:37:59,521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:37:59,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:37:59,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:37:59,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:37:59,727 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:37:59,727 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:37:59,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-87.i [2023-12-16 11:38:00,839 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:38:01,037 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:38:01,037 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-87.i [2023-12-16 11:38:01,049 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4818a2ca/cf39f77c471c4ae591264401f0cc8856/FLAG80554b9d1 [2023-12-16 11:38:01,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4818a2ca/cf39f77c471c4ae591264401f0cc8856 [2023-12-16 11:38:01,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:38:01,072 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:38:01,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:38:01,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:38:01,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:38:01,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d8e5d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01, skipping insertion in model container [2023-12-16 11:38:01,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,116 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:38:01,230 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-87.i[915,928] [2023-12-16 11:38:01,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:38:01,337 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:38:01,358 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-87.i[915,928] [2023-12-16 11:38:01,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:38:01,413 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:38:01,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01 WrapperNode [2023-12-16 11:38:01,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:38:01,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:38:01,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:38:01,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:38:01,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,464 INFO L138 Inliner]: procedures = 27, calls = 82, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 322 [2023-12-16 11:38:01,464 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:38:01,465 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:38:01,465 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:38:01,465 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:38:01,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,506 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 11:38:01,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,516 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,523 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:38:01,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:38:01,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:38:01,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:38:01,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (1/1) ... [2023-12-16 11:38:01,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:38:01,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:38:01,594 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 11:38:01,597 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 11:38:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:38:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:38:01,621 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:38:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:38:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:38:01,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:38:01,770 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:38:01,771 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:38:14,428 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:38:14,476 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:38:14,491 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:38:14,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:38:14 BoogieIcfgContainer [2023-12-16 11:38:14,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:38:14,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:38:14,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:38:14,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:38:14,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:38:01" (1/3) ... [2023-12-16 11:38:14,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@919efb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:38:14, skipping insertion in model container [2023-12-16 11:38:14,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:38:01" (2/3) ... [2023-12-16 11:38:14,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@919efb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:38:14, skipping insertion in model container [2023-12-16 11:38:14,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:38:14" (3/3) ... [2023-12-16 11:38:14,497 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-87.i [2023-12-16 11:38:14,511 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:38:14,512 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:38:14,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:38:14,560 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;@3763fd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:38:14,560 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:38:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 70 states have internal predecessors, (90), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 11:38:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-16 11:38:14,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:38:14,587 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:14,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:38:14,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:38:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1005345239, now seen corresponding path program 1 times [2023-12-16 11:38:14,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:38:14,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660366758] [2023-12-16 11:38:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:38:14,603 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 11:38:14,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:38:14,605 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 11:38:14,612 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 11:38:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:38:15,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:38:15,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:38:15,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 4436 proven. 0 refuted. 0 times theorem prover too weak. 4948 trivial. 0 not checked. [2023-12-16 11:38:15,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:38:15,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:38:15,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660366758] [2023-12-16 11:38:15,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660366758] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:38:15,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:38:15,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:38:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812483195] [2023-12-16 11:38:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:38:15,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:38:15,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:38:15,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:38:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:38:15,446 INFO L87 Difference]: Start difference. First operand has 141 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 70 states have internal predecessors, (90), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 11:38:19,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:38:19,726 INFO L93 Difference]: Finished difference Result 279 states and 523 transitions. [2023-12-16 11:38:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:38:19,807 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 402 [2023-12-16 11:38:19,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:38:19,814 INFO L225 Difference]: With dead ends: 279 [2023-12-16 11:38:19,814 INFO L226 Difference]: Without dead ends: 139 [2023-12-16 11:38:19,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 401 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 11:38:19,820 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:38:19,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 11:38:19,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-12-16 11:38:19,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-12-16 11:38:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 68 states have (on average 1.25) internal successors, (85), 68 states have internal predecessors, (85), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 11:38:19,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 223 transitions. [2023-12-16 11:38:19,893 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 223 transitions. Word has length 402 [2023-12-16 11:38:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:38:19,893 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 223 transitions. [2023-12-16 11:38:19,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 11:38:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 223 transitions. [2023-12-16 11:38:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-16 11:38:19,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:38:19,900 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:19,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:38:20,101 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 11:38:20,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:38:20,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:38:20,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1637990707, now seen corresponding path program 1 times [2023-12-16 11:38:20,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:38:20,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706924780] [2023-12-16 11:38:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:38:20,103 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 11:38:20,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:38:20,106 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 11:38:20,155 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 11:38:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:38:20,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:38:20,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:38:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 11:38:23,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:38:23,789 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:38:23,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706924780] [2023-12-16 11:38:23,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706924780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:38:23,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:38:23,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:38:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942788495] [2023-12-16 11:38:23,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:38:23,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:38:23,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:38:23,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:38:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:38:23,792 INFO L87 Difference]: Start difference. First operand 139 states and 223 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 11:38:27,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:31,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:35,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:36,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:38:36,080 INFO L93 Difference]: Finished difference Result 415 states and 667 transitions. [2023-12-16 11:38:36,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:38:36,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 402 [2023-12-16 11:38:36,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:38:36,084 INFO L225 Difference]: With dead ends: 415 [2023-12-16 11:38:36,084 INFO L226 Difference]: Without dead ends: 277 [2023-12-16 11:38:36,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 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 11:38:36,086 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 28 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:38:36,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 444 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2023-12-16 11:38:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2023-12-16 11:38:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 275. [2023-12-16 11:38:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 134 states have (on average 1.2388059701492538) internal successors, (166), 134 states have internal predecessors, (166), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2023-12-16 11:38:36,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 442 transitions. [2023-12-16 11:38:36,151 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 442 transitions. Word has length 402 [2023-12-16 11:38:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:38:36,157 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 442 transitions. [2023-12-16 11:38:36,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 11:38:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 442 transitions. [2023-12-16 11:38:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2023-12-16 11:38:36,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:38:36,164 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:36,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 11:38:36,377 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 11:38:36,377 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:38:36,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:38:36,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2031017717, now seen corresponding path program 1 times [2023-12-16 11:38:36,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:38:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636829841] [2023-12-16 11:38:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:38:36,381 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 11:38:36,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:38:36,382 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 11:38:36,384 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 11:38:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:38:37,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:38:37,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:38:39,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 3120 proven. 162 refuted. 0 times theorem prover too weak. 6102 trivial. 0 not checked. [2023-12-16 11:38:39,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:38:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 42 proven. 162 refuted. 0 times theorem prover too weak. 9180 trivial. 0 not checked. [2023-12-16 11:38:40,923 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:38:40,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636829841] [2023-12-16 11:38:40,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636829841] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:38:40,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:38:40,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-16 11:38:40,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725244114] [2023-12-16 11:38:40,924 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:38:40,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 11:38:40,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:38:40,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 11:38:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 11:38:40,927 INFO L87 Difference]: Start difference. First operand 275 states and 442 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 2 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2023-12-16 11:38:47,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:51,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:55,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 11:38:55,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:38:55,680 INFO L93 Difference]: Finished difference Result 449 states and 712 transitions. [2023-12-16 11:38:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 11:38:55,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 2 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) Word has length 402 [2023-12-16 11:38:55,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:38:55,685 INFO L225 Difference]: With dead ends: 449 [2023-12-16 11:38:55,685 INFO L226 Difference]: Without dead ends: 311 [2023-12-16 11:38:55,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 795 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-16 11:38:55,687 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 136 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 166 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:38:55,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 364 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 481 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2023-12-16 11:38:55,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-12-16 11:38:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 304. [2023-12-16 11:38:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 147 states have (on average 1.2040816326530612) internal successors, (177), 148 states have internal predecessors, (177), 152 states have call successors, (152), 4 states have call predecessors, (152), 4 states have return successors, (152), 151 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 11:38:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 481 transitions. [2023-12-16 11:38:55,716 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 481 transitions. Word has length 402 [2023-12-16 11:38:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:38:55,717 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 481 transitions. [2023-12-16 11:38:55,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 9 states have internal predecessors, (74), 2 states have call successors, (123), 2 states have call predecessors, (123), 4 states have return successors, (124), 2 states have call predecessors, (124), 2 states have call successors, (124) [2023-12-16 11:38:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 481 transitions. [2023-12-16 11:38:55,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-12-16 11:38:55,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:38:55,719 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:38:55,737 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 [2023-12-16 11:38:55,937 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 [2023-12-16 11:38:55,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:38:55,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:38:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash 447921421, now seen corresponding path program 1 times [2023-12-16 11:38:55,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:38:55,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375589468] [2023-12-16 11:38:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:38:55,939 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 [2023-12-16 11:38:55,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:38:55,942 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 11:38:55,948 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 11:38:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:38:58,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-16 11:38:58,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:39:16,856 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 [2023-12-16 11:39:16,857 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 11:39:16,985 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:39:17,004 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 11:39:17,186 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 11:39:17,186 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 404 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-14-1 term,while PolyPacSimplificationTermWalker was simplifying 14 xjuncts wrt. a ATOM-1 context. [2023-12-16 11:39:17,194 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 11:39:17,196 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:39:17,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:39:17 BoogieIcfgContainer [2023-12-16 11:39:17,199 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:39:17,199 INFO L158 Benchmark]: Toolchain (without parser) took 76127.53ms. Allocated memory is still 351.3MB. Free memory was 304.1MB in the beginning and 228.7MB in the end (delta: 75.4MB). Peak memory consumption was 76.7MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,199 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 225.4MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:39:17,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.81ms. Allocated memory is still 351.3MB. Free memory was 303.7MB in the beginning and 285.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.24ms. Allocated memory is still 351.3MB. Free memory was 285.2MB in the beginning and 282.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,201 INFO L158 Benchmark]: Boogie Preprocessor took 75.57ms. Allocated memory is still 351.3MB. Free memory was 282.1MB in the beginning and 277.5MB in the end (delta: 4.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,201 INFO L158 Benchmark]: RCFGBuilder took 12950.90ms. Allocated memory is still 351.3MB. Free memory was 277.5MB in the beginning and 301.8MB in the end (delta: -24.3MB). Peak memory consumption was 25.8MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,201 INFO L158 Benchmark]: TraceAbstraction took 62705.46ms. Allocated memory is still 351.3MB. Free memory was 300.8MB in the beginning and 228.7MB in the end (delta: 72.1MB). Peak memory consumption was 71.8MB. Max. memory is 8.0GB. [2023-12-16 11:39:17,202 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 225.4MB. Free memory is still 174.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 341.81ms. Allocated memory is still 351.3MB. Free memory was 303.7MB in the beginning and 285.2MB in the end (delta: 18.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.24ms. Allocated memory is still 351.3MB. Free memory was 285.2MB in the beginning and 282.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 75.57ms. Allocated memory is still 351.3MB. Free memory was 282.1MB in the beginning and 277.5MB in the end (delta: 4.5MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 12950.90ms. Allocated memory is still 351.3MB. Free memory was 277.5MB in the beginning and 301.8MB in the end (delta: -24.3MB). Peak memory consumption was 25.8MB. Max. memory is 8.0GB. * TraceAbstraction took 62705.46ms. Allocated memory is still 351.3MB. Free memory was 300.8MB in the beginning and 228.7MB in the end (delta: 72.1MB). Peak memory consumption was 71.8MB. 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 404 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-14-1 term,while PolyPacSimplificationTermWalker was simplifying 14 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 141 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 62.7s, OverallIterations: 4, TraceHistogramMax: 69, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 30.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 164 mSDsluCounter, 1028 SdHoareTripleChecker+Invalid, 30.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 411 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 493 IncrementalHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 617 mSDtfsCounter, 493 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1612 GetRequests, 1596 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1206 NumberOfCodeBlocks, 1206 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 1604 ConstructedInterpolants, 0 QuantifiedInterpolants, 3657 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1879 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 37212/37536 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