/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_fillercodestructure_filler-ps-co_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 16:59:03,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 16:59:03,557 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 16:59:03,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 16:59:03,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 16:59:03,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 16:59:03,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 16:59:03,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 16:59:03,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 16:59:03,591 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 16:59:03,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 16:59:03,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 16:59:03,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 16:59:03,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 16:59:03,594 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 16:59:03,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 16:59:03,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 16:59:03,595 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 16:59:03,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 16:59:03,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 16:59:03,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 16:59:03,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 16:59:03,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 16:59:03,596 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 16:59:03,596 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 16:59:03,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 16:59:03,597 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 16:59:03,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 16:59:03,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 16:59:03,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 16:59:03,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 16:59:03,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 16:59:03,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 16:59:03,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 16:59:03,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:59:03,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 16:59:03,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 16:59:03,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 16:59:03,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 16:59:03,600 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 16:59:03,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 16:59:03,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 16:59:03,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 16:59:03,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 16:59:03,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 16:59:03,827 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 16:59:03,828 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-87.i [2023-12-23 16:59:04,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 16:59:05,117 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 16:59:05,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-87.i [2023-12-23 16:59:05,124 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe1d738e/723ea1eae9e24be7a3a74328b19498aa/FLAG8e33fa759 [2023-12-23 16:59:05,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fe1d738e/723ea1eae9e24be7a3a74328b19498aa [2023-12-23 16:59:05,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 16:59:05,137 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 16:59:05,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 16:59:05,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 16:59:05,141 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 16:59:05,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425238f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05, skipping insertion in model container [2023-12-23 16:59:05,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,177 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 16:59:05,307 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_fillercodestructure_filler-ps-co_file-87.i[919,932] [2023-12-23 16:59:05,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:59:05,434 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 16:59:05,443 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_fillercodestructure_filler-ps-co_file-87.i[919,932] [2023-12-23 16:59:05,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:59:05,506 INFO L206 MainTranslator]: Completed translation [2023-12-23 16:59:05,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05 WrapperNode [2023-12-23 16:59:05,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 16:59:05,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 16:59:05,508 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 16:59:05,508 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 16:59:05,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,576 INFO L138 Inliner]: procedures = 27, calls = 72, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 292 [2023-12-23 16:59:05,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 16:59:05,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 16:59:05,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 16:59:05,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 16:59:05,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,595 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,616 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 16:59:05,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 16:59:05,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 16:59:05,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 16:59:05,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 16:59:05,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (1/1) ... [2023-12-23 16:59:05,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:59:05,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 16:59:05,705 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 16:59:05,707 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 16:59:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 16:59:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 16:59:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 16:59:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 16:59:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 16:59:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 16:59:05,836 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 16:59:05,839 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 16:59:17,230 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 16:59:17,276 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 16:59:17,277 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 16:59:17,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:17 BoogieIcfgContainer [2023-12-23 16:59:17,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 16:59:17,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 16:59:17,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 16:59:17,281 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 16:59:17,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:59:05" (1/3) ... [2023-12-23 16:59:17,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73be4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:17, skipping insertion in model container [2023-12-23 16:59:17,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:05" (2/3) ... [2023-12-23 16:59:17,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73be4ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:17, skipping insertion in model container [2023-12-23 16:59:17,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:17" (3/3) ... [2023-12-23 16:59:17,283 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-87.i [2023-12-23 16:59:17,295 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 16:59:17,295 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 16:59:17,328 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 16:59:17,333 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;@27235a51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 16:59:17,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 16:59:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 64 states have (on average 1.328125) internal successors, (85), 65 states have internal predecessors, (85), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-23 16:59:17,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 16:59:17,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:59:17,366 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:17,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:59:17,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:59:17,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1057275036, now seen corresponding path program 1 times [2023-12-23 16:59:17,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:59:17,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066723817] [2023-12-23 16:59:17,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:59:17,385 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 16:59:17,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:59:17,400 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 16:59:17,439 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 16:59:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:59:18,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 16:59:18,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:59:18,282 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 3416 proven. 0 refuted. 0 times theorem prover too weak. 3428 trivial. 0 not checked. [2023-12-23 16:59:18,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:59:18,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:59:18,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066723817] [2023-12-23 16:59:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066723817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:59:18,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:59:18,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:59:18,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568748978] [2023-12-23 16:59:18,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:59:18,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 16:59:18,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:59:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 16:59:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:59:18,310 INFO L87 Difference]: Start difference. First operand has 126 states, 64 states have (on average 1.328125) internal successors, (85), 65 states have internal predecessors, (85), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 16:59:22,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:22,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:59:22,537 INFO L93 Difference]: Finished difference Result 249 states and 463 transitions. [2023-12-23 16:59:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 16:59:22,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 347 [2023-12-23 16:59:22,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:59:22,614 INFO L225 Difference]: With dead ends: 249 [2023-12-23 16:59:22,614 INFO L226 Difference]: Without dead ends: 124 [2023-12-23 16:59:22,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 346 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 16:59:22,619 INFO L413 NwaCegarLoop]: 195 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, 195 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 [2023-12-23 16:59:22,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 195 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2023-12-23 16:59:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-12-23 16:59:22,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-12-23 16:59:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 63 states have (on average 1.2698412698412698) internal successors, (80), 63 states have internal predecessors, (80), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-23 16:59:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 198 transitions. [2023-12-23 16:59:22,697 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 198 transitions. Word has length 347 [2023-12-23 16:59:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:59:22,699 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 198 transitions. [2023-12-23 16:59:22,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-12-23 16:59:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 198 transitions. [2023-12-23 16:59:22,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 16:59:22,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:59:22,705 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:22,740 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 16:59:22,920 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 16:59:22,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:59:22,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:59:22,925 INFO L85 PathProgramCache]: Analyzing trace with hash 897166694, now seen corresponding path program 1 times [2023-12-23 16:59:22,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:59:22,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592372348] [2023-12-23 16:59:22,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:59:22,927 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 16:59:22,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:59:22,935 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 16:59:22,936 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 16:59:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:59:23,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:59:23,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:59:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-23 16:59:29,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:59:29,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:59:29,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592372348] [2023-12-23 16:59:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592372348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:59:29,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:59:29,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:59:29,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135067716] [2023-12-23 16:59:29,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:59:29,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:59:29,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:59:29,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:59:29,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:59:29,159 INFO L87 Difference]: Start difference. First operand 124 states and 198 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 16:59:33,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:37,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:41,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:46,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:50,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:59:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:59:50,261 INFO L93 Difference]: Finished difference Result 370 states and 592 transitions. [2023-12-23 16:59:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:59:50,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 347 [2023-12-23 16:59:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:59:50,265 INFO L225 Difference]: With dead ends: 370 [2023-12-23 16:59:50,265 INFO L226 Difference]: Without dead ends: 247 [2023-12-23 16:59:50,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 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 16:59:50,267 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 37 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2023-12-23 16:59:50,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 362 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2023-12-23 16:59:50,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-23 16:59:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2023-12-23 16:59:50,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 124 states have (on average 1.2661290322580645) internal successors, (157), 124 states have internal predecessors, (157), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-23 16:59:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 393 transitions. [2023-12-23 16:59:50,303 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 393 transitions. Word has length 347 [2023-12-23 16:59:50,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:59:50,303 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 393 transitions. [2023-12-23 16:59:50,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 16:59:50,304 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 393 transitions. [2023-12-23 16:59:50,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 16:59:50,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:59:50,307 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:50,341 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 16:59:50,528 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 16:59:50,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:59:50,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:59:50,530 INFO L85 PathProgramCache]: Analyzing trace with hash -123901660, now seen corresponding path program 1 times [2023-12-23 16:59:50,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:59:50,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910106192] [2023-12-23 16:59:50,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:59:50,531 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 16:59:50,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:59:50,533 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 16:59:50,534 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 16:59:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:59:51,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:59:51,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:59:56,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2023-12-23 16:59:56,932 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:59:56,932 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:59:56,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910106192] [2023-12-23 16:59:56,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910106192] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:59:56,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:59:56,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:59:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252733128] [2023-12-23 16:59:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:59:56,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:59:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:59:56,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:59:56,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:59:56,935 INFO L87 Difference]: Start difference. First operand 245 states and 393 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 17:00:00,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 17:00:04,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 17:00:08,704 WARN L539 Checker$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 17:00:11,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 17:00:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 17:00:11,593 INFO L93 Difference]: Finished difference Result 610 states and 981 transitions. [2023-12-23 17:00:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 17:00:11,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) Word has length 347 [2023-12-23 17:00:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 17:00:11,597 INFO L225 Difference]: With dead ends: 610 [2023-12-23 17:00:11,597 INFO L226 Difference]: Without dead ends: 366 [2023-12-23 17:00:11,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 345 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 17:00:11,603 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 21 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-12-23 17:00:11,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 358 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2023-12-23 17:00:11,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-12-23 17:00:11,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 350. [2023-12-23 17:00:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 169 states have (on average 1.21301775147929) internal successors, (205), 169 states have internal predecessors, (205), 177 states have call successors, (177), 3 states have call predecessors, (177), 3 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-12-23 17:00:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 559 transitions. [2023-12-23 17:00:11,638 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 559 transitions. Word has length 347 [2023-12-23 17:00:11,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 17:00:11,639 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 559 transitions. [2023-12-23 17:00:11,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 1 states have call predecessors, (59), 1 states have call successors, (59) [2023-12-23 17:00:11,639 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 559 transitions. [2023-12-23 17:00:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-12-23 17:00:11,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 17:00:11,641 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:11,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 17:00:11,862 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 17:00:11,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 17:00:11,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 17:00:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash -710707674, now seen corresponding path program 1 times [2023-12-23 17:00:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 17:00:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254456986] [2023-12-23 17:00:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:11,864 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 17:00:11,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 17:00:11,865 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 17:00:11,909 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 17:00:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:12,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 17:00:12,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 17:00:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 2550 proven. 132 refuted. 0 times theorem prover too weak. 4162 trivial. 0 not checked. [2023-12-23 17:00:15,239 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 17:00:16,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 42 proven. 132 refuted. 0 times theorem prover too weak. 6670 trivial. 0 not checked. [2023-12-23 17:00:16,343 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 17:00:16,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254456986] [2023-12-23 17:00:16,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254456986] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 17:00:16,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 17:00:16,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-23 17:00:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502150957] [2023-12-23 17:00:16,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 17:00:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 17:00:16,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 17:00:16,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 17:00:16,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 17:00:16,350 INFO L87 Difference]: Start difference. First operand 350 states and 559 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-23 17:00:22,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 17:00:26,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 17:00:30,766 WARN L539 Checker$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 17:00:31,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 17:00:31,205 INFO L93 Difference]: Finished difference Result 614 states and 968 transitions. [2023-12-23 17:00:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-23 17:00:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) Word has length 347 [2023-12-23 17:00:31,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 17:00:31,216 INFO L225 Difference]: With dead ends: 614 [2023-12-23 17:00:31,217 INFO L226 Difference]: Without dead ends: 370 [2023-12-23 17:00:31,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 685 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2023-12-23 17:00:31,219 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 132 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 150 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-12-23 17:00:31,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 325 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 390 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2023-12-23 17:00:31,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-23 17:00:31,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 362. [2023-12-23 17:00:31,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 178 states have (on average 1.1797752808988764) internal successors, (210), 178 states have internal predecessors, (210), 177 states have call successors, (177), 6 states have call predecessors, (177), 6 states have return successors, (177), 177 states have call predecessors, (177), 177 states have call successors, (177) [2023-12-23 17:00:31,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 564 transitions. [2023-12-23 17:00:31,311 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 564 transitions. Word has length 347 [2023-12-23 17:00:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 17:00:31,313 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 564 transitions. [2023-12-23 17:00:31,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 2 states have call successors, (103), 2 states have call predecessors, (103), 4 states have return successors, (104), 2 states have call predecessors, (104), 2 states have call successors, (104) [2023-12-23 17:00:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 564 transitions. [2023-12-23 17:00:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2023-12-23 17:00:31,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 17:00:31,322 INFO L195 NwaCegarLoop]: trace histogram [59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:31,341 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 17:00:31,523 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 17:00:31,524 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 17:00:31,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 17:00:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash 653292227, now seen corresponding path program 1 times [2023-12-23 17:00:31,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 17:00:31,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939790531] [2023-12-23 17:00:31,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 17:00:31,525 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 17:00:31,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 17:00:31,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 17:00:31,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 17:00:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 17:00:34,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-23 17:00:34,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 17:04:23,466 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:04:31,833 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:04:40,306 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:04:48,698 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:01,425 WARN L293 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:10,165 WARN L293 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:18,482 WARN L293 SmtUtils]: Spent 8.32s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:27,321 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:35,762 WARN L293 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:44,243 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:05:52,635 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:01,012 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:09,493 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:17,751 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:26,238 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:34,658 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:43,149 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:06:51,626 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:00,089 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:08,553 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:17,025 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:25,498 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:33,931 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:42,382 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:50,813 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:07:59,289 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:07,784 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:16,222 WARN L293 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:24,657 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:33,084 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:41,525 WARN L293 SmtUtils]: Spent 8.44s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:49,945 WARN L293 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:08:58,374 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:06,847 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:15,306 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:23,712 WARN L293 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:32,167 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:40,597 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:49,054 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:09:57,501 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:05,952 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:14,407 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:22,923 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:31,376 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:39,842 WARN L293 SmtUtils]: Spent 8.47s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:48,292 WARN L293 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:10:57,054 WARN L293 SmtUtils]: Spent 8.76s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:05,516 WARN L293 SmtUtils]: Spent 8.46s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:14,034 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:22,527 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:31,127 WARN L293 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:39,683 WARN L293 SmtUtils]: Spent 8.55s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:48,188 WARN L293 SmtUtils]: Spent 8.50s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:11:56,673 WARN L293 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:05,180 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:13,705 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:22,226 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:30,712 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:39,220 WARN L293 SmtUtils]: Spent 8.51s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:12:43,362 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (let ((.cse1 (fp.neg .cse3)) (.cse6 (fp.neg .cse5)) (.cse0 (fp.neg .cse2)) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode .cse2)) (.cse12 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)))) (and (bvsge c_~var_1_7~0 (_ bv0 32)) (or (and (fp.leq c_~var_1_25~0 .cse0) (fp.geq c_~var_1_25~0 .cse1)) (and (fp.geq c_~var_1_25~0 .cse2) (fp.leq c_~var_1_25~0 .cse3))) (not (= ((_ sign_extend 16) c_~var_1_17~0) (_ bv0 32))) (bvsge c_~var_1_20~0 (_ bv0 32)) (fp.leq c_~var_1_15~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3)) (fp.geq c_~var_1_14~0 .cse4) (or (and (fp.geq c_~var_1_26~0 .cse2) (fp.leq c_~var_1_26~0 .cse3)) (and (fp.leq c_~var_1_26~0 .cse0) (fp.geq c_~var_1_26~0 .cse1))) (or (and (fp.leq c_~var_1_27~0 .cse5) (fp.geq c_~var_1_27~0 .cse2)) (and (fp.leq c_~var_1_27~0 .cse0) (fp.geq c_~var_1_27~0 .cse6))) (bvsle c_~var_1_20~0 (_ bv1073741823 32)) (or (and (fp.geq c_~var_1_28~0 .cse2) (fp.leq c_~var_1_28~0 .cse5)) (and (fp.geq c_~var_1_28~0 .cse6) (fp.leq c_~var_1_28~0 .cse0))) (fp.geq c_~var_1_15~0 .cse4) (bvsge ((_ zero_extend 24) c_~var_1_10~0) (_ bv1 32)) (bvsle c_~var_1_19~0 (_ bv1073741823 32)) (let ((.cse10 (fp.sub c_currentRoundingMode c_~var_1_14~0 (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 5864780816028210200.0) c_~var_1_15~0)))) (let ((.cse7 (fp.gt c_~var_1_12~0 c_~var_1_13~0)) (.cse9 (= c_~var_1_11~0 .cse10))) (or (and (not .cse7) (let ((.cse8 (fp.gt c_~var_1_13~0 .cse10))) (or (and .cse8 (= c_~var_1_11~0 c_~var_1_13~0)) (and (not .cse8) .cse9)))) (and .cse7 (let ((.cse11 (fp.gt c_~var_1_12~0 .cse10))) (or (and .cse11 (= c_~var_1_11~0 c_~var_1_12~0)) (and (not .cse11) .cse9))))))) (fp.geq c_~var_1_22~0 .cse4) (fp.leq c_~var_1_22~0 .cse12) (bvsge c_~var_1_19~0 (_ bv0 32)) (= (_ bv1 8) c_~var_1_1~0) (= c_~var_1_21~0 (fp.sub c_currentRoundingMode c_~var_1_22~0 c_~var_1_15~0)) (fp.leq c_~var_1_14~0 .cse12) (bvsge c_~var_1_2~0 (_ bv4294967295 32)) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse22 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_25~0)) (.cse23 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_26~0))) (let ((.cse14 (fp.gt .cse22 .cse23)) (.cse21 ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_27~0 c_~var_1_28~0)))) (let ((.cse15 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode .cse22 .cse21)) c_~var_1_24~0)) (.cse16 (not .cse14)) (.cse17 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode .cse23 .cse21)) c_~var_1_24~0)) (.cse13 (fp.gt c_~var_1_15~0 .cse23))) (or (and (not .cse13) (or (and .cse14 .cse15) (and .cse16 .cse17))) (and (let ((.cse20 (fp.gt c_~var_1_15~0 .cse22))) (let ((.cse18 (and .cse20 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_15~0 .cse21)) c_~var_1_24~0))) (.cse19 (not .cse20))) (or (and (or .cse18 (and .cse15 .cse19)) .cse14) (and .cse16 (or .cse18 (and .cse17 .cse19)))))) .cse13)))))))) is different from false [2023-12-23 17:12:47,488 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (let ((.cse1 (fp.neg .cse3)) (.cse6 (fp.neg .cse5)) (.cse0 (fp.neg .cse2)) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode .cse2)) (.cse12 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)))) (and (bvsge c_~var_1_7~0 (_ bv0 32)) (or (and (fp.leq c_~var_1_25~0 .cse0) (fp.geq c_~var_1_25~0 .cse1)) (and (fp.geq c_~var_1_25~0 .cse2) (fp.leq c_~var_1_25~0 .cse3))) (not (= ((_ sign_extend 16) c_~var_1_17~0) (_ bv0 32))) (bvsge c_~var_1_20~0 (_ bv0 32)) (fp.leq c_~var_1_15~0 ((_ to_fp 11 53) c_currentRoundingMode .cse3)) (fp.geq c_~var_1_14~0 .cse4) (or (and (fp.geq c_~var_1_26~0 .cse2) (fp.leq c_~var_1_26~0 .cse3)) (and (fp.leq c_~var_1_26~0 .cse0) (fp.geq c_~var_1_26~0 .cse1))) (or (and (fp.leq c_~var_1_27~0 .cse5) (fp.geq c_~var_1_27~0 .cse2)) (and (fp.leq c_~var_1_27~0 .cse0) (fp.geq c_~var_1_27~0 .cse6))) (bvsle c_~var_1_20~0 (_ bv1073741823 32)) (or (and (fp.geq c_~var_1_28~0 .cse2) (fp.leq c_~var_1_28~0 .cse5)) (and (fp.geq c_~var_1_28~0 .cse6) (fp.leq c_~var_1_28~0 .cse0))) (fp.geq c_~var_1_15~0 .cse4) (bvsge ((_ zero_extend 24) c_~var_1_10~0) (_ bv1 32)) (bvsle c_~var_1_19~0 (_ bv1073741823 32)) (let ((.cse10 (fp.sub c_currentRoundingMode c_~var_1_14~0 (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 5864780816028210200.0) c_~var_1_15~0)))) (let ((.cse7 (fp.gt c_~var_1_12~0 c_~var_1_13~0)) (.cse9 (= c_~var_1_11~0 .cse10))) (or (and (not .cse7) (let ((.cse8 (fp.gt c_~var_1_13~0 .cse10))) (or (and .cse8 (= c_~var_1_11~0 c_~var_1_13~0)) (and (not .cse8) .cse9)))) (and .cse7 (let ((.cse11 (fp.gt c_~var_1_12~0 .cse10))) (or (and .cse11 (= c_~var_1_11~0 c_~var_1_12~0)) (and (not .cse11) .cse9))))))) (fp.geq c_~var_1_22~0 .cse4) (fp.leq c_~var_1_22~0 .cse12) (bvsge c_~var_1_19~0 (_ bv0 32)) (= (_ bv1 8) c_~var_1_1~0) (= c_~var_1_21~0 (fp.sub c_currentRoundingMode c_~var_1_22~0 c_~var_1_15~0)) (fp.leq c_~var_1_14~0 .cse12) (bvsge c_~var_1_2~0 (_ bv4294967295 32)) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse22 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_25~0)) (.cse23 ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_26~0))) (let ((.cse14 (fp.gt .cse22 .cse23)) (.cse21 ((_ to_fp 11 53) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_27~0 c_~var_1_28~0)))) (let ((.cse15 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode .cse22 .cse21)) c_~var_1_24~0)) (.cse16 (not .cse14)) (.cse17 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode .cse23 .cse21)) c_~var_1_24~0)) (.cse13 (fp.gt c_~var_1_15~0 .cse23))) (or (and (not .cse13) (or (and .cse14 .cse15) (and .cse16 .cse17))) (and (let ((.cse20 (fp.gt c_~var_1_15~0 .cse22))) (let ((.cse18 (and .cse20 (= ((_ to_fp 8 24) c_currentRoundingMode (fp.add c_currentRoundingMode c_~var_1_15~0 .cse21)) c_~var_1_24~0))) (.cse19 (not .cse20))) (or (and (or .cse18 (and .cse15 .cse19)) .cse14) (and .cse16 (or .cse18 (and .cse17 .cse19)))))) .cse13)))))))) is different from true [2023-12-23 17:12:56,034 WARN L293 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:04,612 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:13,025 WARN L293 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:21,355 WARN L293 SmtUtils]: Spent 8.33s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:30,708 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:39,122 WARN L293 SmtUtils]: Spent 8.41s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 17:13:47,455 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 17:13:47,456 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 17:13:47,690 WARN L293 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 17:13:47,694 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 17:13:47,715 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 (6)] Ended with exit code 0 [2023-12-23 17:13:47,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 17:13:47,907 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 349 with TraceHistMax 59,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-28-3-2-2-2-1 context. [2023-12-23 17:13:47,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 17:13:47,912 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 17:13:47,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:13:47 BoogieIcfgContainer [2023-12-23 17:13:47,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 17:13:47,914 INFO L158 Benchmark]: Toolchain (without parser) took 882777.23ms. Allocated memory is still 283.1MB. Free memory was 239.4MB in the beginning and 121.1MB in the end (delta: 118.4MB). Peak memory consumption was 119.1MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,914 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 170.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 17:13:47,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.43ms. Allocated memory is still 283.1MB. Free memory was 239.4MB in the beginning and 221.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.21ms. Allocated memory is still 283.1MB. Free memory was 221.6MB in the beginning and 218.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,915 INFO L158 Benchmark]: Boogie Preprocessor took 88.88ms. Allocated memory is still 283.1MB. Free memory was 218.5MB in the beginning and 213.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,915 INFO L158 Benchmark]: RCFGBuilder took 11610.28ms. Allocated memory is still 283.1MB. Free memory was 213.8MB in the beginning and 182.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,915 INFO L158 Benchmark]: TraceAbstraction took 870634.92ms. Allocated memory is still 283.1MB. Free memory was 181.3MB in the beginning and 121.1MB in the end (delta: 60.2MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. [2023-12-23 17:13:47,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 170.9MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 369.43ms. Allocated memory is still 283.1MB. Free memory was 239.4MB in the beginning and 221.6MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.21ms. Allocated memory is still 283.1MB. Free memory was 221.6MB in the beginning and 218.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 88.88ms. Allocated memory is still 283.1MB. Free memory was 218.5MB in the beginning and 213.8MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 11610.28ms. Allocated memory is still 283.1MB. Free memory was 213.8MB in the beginning and 182.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 870634.92ms. Allocated memory is still 283.1MB. Free memory was 181.3MB in the beginning and 121.1MB in the end (delta: 60.2MB). Peak memory consumption was 61.4MB. 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 349 with TraceHistMax 59,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-28-3-2-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 870.6s, OverallIterations: 5, TraceHistogramMax: 59, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 55.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 54.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 1240 SdHoareTripleChecker+Invalid, 53.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 516 mSDsCounter, 151 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 484 IncrementalHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 151 mSolverCounterUnsat, 724 mSDtfsCounter, 484 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1738 GetRequests, 1721 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 15.1s InterpolantComputationTime, 1388 NumberOfCodeBlocks, 1388 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 1730 ConstructedInterpolants, 0 QuantifiedInterpolants, 8101 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2189 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 33956/34220 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