/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-6.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 23:18:17,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 23:18:17,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 23:18:17,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 23:18:17,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 23:18:17,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 23:18:17,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 23:18:17,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 23:18:17,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 23:18:17,571 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 23:18:17,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 23:18:17,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 23:18:17,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 23:18:17,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 23:18:17,575 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 23:18:17,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 23:18:17,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 23:18:17,576 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 23:18:17,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 23:18:17,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 23:18:17,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 23:18:17,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 23:18:17,577 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 23:18:17,577 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 23:18:17,578 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 23:18:17,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 23:18:17,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 23:18:17,579 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 23:18:17,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 23:18:17,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 23:18:17,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 23:18:17,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 23:18:17,581 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 23:18:17,581 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 23:18:17,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 23:18:17,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 23:18:17,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 23:18:17,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 23:18:17,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 23:18:17,794 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 23:18:17,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-6.i [2023-12-22 23:18:18,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 23:18:19,089 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 23:18:19,089 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-6.i [2023-12-22 23:18:19,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937e5940f/4711521621274f3a9528e6cb1da89a64/FLAGe172ebf66 [2023-12-22 23:18:19,114 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/937e5940f/4711521621274f3a9528e6cb1da89a64 [2023-12-22 23:18:19,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 23:18:19,117 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 23:18:19,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 23:18:19,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 23:18:19,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 23:18:19,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eb663fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19, skipping insertion in model container [2023-12-22 23:18:19,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,151 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 23:18:19,270 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-6.i[912,925] [2023-12-22 23:18:19,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 23:18:19,341 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 23:18:19,354 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-6.i[912,925] [2023-12-22 23:18:19,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 23:18:19,389 INFO L206 MainTranslator]: Completed translation [2023-12-22 23:18:19,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19 WrapperNode [2023-12-22 23:18:19,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 23:18:19,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 23:18:19,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 23:18:19,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 23:18:19,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,430 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2023-12-22 23:18:19,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 23:18:19,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 23:18:19,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 23:18:19,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 23:18:19,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,453 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]. [2023-12-22 23:18:19,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,453 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 23:18:19,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 23:18:19,471 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 23:18:19,471 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 23:18:19,471 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (1/1) ... [2023-12-22 23:18:19,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 23:18:19,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 23:18:19,504 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) [2023-12-22 23:18:19,516 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 [2023-12-22 23:18:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 23:18:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 23:18:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-22 23:18:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-22 23:18:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 23:18:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 23:18:19,584 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 23:18:19,586 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 23:18:38,959 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 23:18:38,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 23:18:38,984 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 23:18:38,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:18:38 BoogieIcfgContainer [2023-12-22 23:18:38,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 23:18:38,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 23:18:38,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 23:18:38,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 23:18:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:18:19" (1/3) ... [2023-12-22 23:18:38,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e646532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:18:38, skipping insertion in model container [2023-12-22 23:18:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:18:19" (2/3) ... [2023-12-22 23:18:38,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e646532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:18:38, skipping insertion in model container [2023-12-22 23:18:38,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:18:38" (3/3) ... [2023-12-22 23:18:38,989 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-6.i [2023-12-22 23:18:39,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 23:18:39,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 23:18:39,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 23:18:39,032 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;@ccf5ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 23:18:39,032 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 23:18:39,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-22 23:18:39,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 23:18:39,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:18:39,042 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:18:39,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:18:39,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:18:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash 766721045, now seen corresponding path program 1 times [2023-12-22 23:18:39,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:18:39,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093171920] [2023-12-22 23:18:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:18:39,056 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 [2023-12-22 23:18:39,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:18:39,058 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) [2023-12-22 23:18:39,064 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 [2023-12-22 23:18:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:18:39,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 23:18:39,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:18:39,839 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2023-12-22 23:18:39,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:18:39,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:18:39,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093171920] [2023-12-22 23:18:39,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093171920] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:18:39,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:18:39,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 23:18:39,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631186134] [2023-12-22 23:18:39,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:18:39,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 23:18:39,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:18:39,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 23:18:39,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 23:18:39,872 INFO L87 Difference]: Start difference. First operand has 47 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 32 states have internal predecessors, (45), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 23:18:44,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:18:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:18:44,304 INFO L93 Difference]: Finished difference Result 91 states and 153 transitions. [2023-12-22 23:18:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 23:18:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2023-12-22 23:18:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:18:44,454 INFO L225 Difference]: With dead ends: 91 [2023-12-22 23:18:44,454 INFO L226 Difference]: Without dead ends: 45 [2023-12-22 23:18:44,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 23:18:44,458 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-22 23:18:44,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2023-12-22 23:18:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-22 23:18:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-22 23:18:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-22 23:18:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2023-12-22 23:18:44,483 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 66 transitions. Word has length 87 [2023-12-22 23:18:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:18:44,483 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 66 transitions. [2023-12-22 23:18:44,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 23:18:44,484 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2023-12-22 23:18:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-22 23:18:44,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:18:44,487 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:18:44,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-22 23:18:44,687 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 [2023-12-22 23:18:44,688 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:18:44,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:18:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1134938391, now seen corresponding path program 1 times [2023-12-22 23:18:44,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:18:44,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540389804] [2023-12-22 23:18:44,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:18:44,689 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 [2023-12-22 23:18:44,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:18:44,690 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) [2023-12-22 23:18:44,707 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 [2023-12-22 23:18:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:18:45,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 23:18:45,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:18:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-22 23:18:46,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:18:46,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:18:46,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540389804] [2023-12-22 23:18:46,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1540389804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:18:46,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:18:46,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 23:18:46,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28344313] [2023-12-22 23:18:46,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:18:46,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 23:18:46,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:18:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 23:18:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-22 23:18:46,728 INFO L87 Difference]: Start difference. First operand 45 states and 66 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-22 23:18:51,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:18:55,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:18:59,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:03,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:07,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:07,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:19:07,977 INFO L93 Difference]: Finished difference Result 134 states and 197 transitions. [2023-12-22 23:19:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 23:19:08,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2023-12-22 23:19:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:19:08,131 INFO L225 Difference]: With dead ends: 134 [2023-12-22 23:19:08,132 INFO L226 Difference]: Without dead ends: 90 [2023-12-22 23:19:08,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 23:19:08,133 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 50 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 27 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2023-12-22 23:19:08,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 185 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 21.2s Time] [2023-12-22 23:19:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-22 23:19:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 73. [2023-12-22 23:19:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 44 states have internal predecessors, (54), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-22 23:19:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 106 transitions. [2023-12-22 23:19:08,145 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 106 transitions. Word has length 87 [2023-12-22 23:19:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:19:08,146 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 106 transitions. [2023-12-22 23:19:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-12-22 23:19:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 106 transitions. [2023-12-22 23:19:08,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 23:19:08,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:19:08,147 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:19:08,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 23:19:08,355 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 [2023-12-22 23:19:08,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:19:08,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:19:08,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1098281195, now seen corresponding path program 1 times [2023-12-22 23:19:08,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:19:08,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252660752] [2023-12-22 23:19:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:19:08,357 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 [2023-12-22 23:19:08,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:19:08,358 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) [2023-12-22 23:19:08,359 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 [2023-12-22 23:19:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:19:09,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 23:19:09,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:19:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 166 proven. 15 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-12-22 23:19:11,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 23:19:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 21 proven. 15 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2023-12-22 23:19:13,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:19:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252660752] [2023-12-22 23:19:13,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252660752] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 23:19:13,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 23:19:13,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2023-12-22 23:19:13,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372069704] [2023-12-22 23:19:13,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 23:19:13,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-22 23:19:13,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:19:13,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-22 23:19:13,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-12-22 23:19:13,006 INFO L87 Difference]: Start difference. First operand 73 states and 106 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 4 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-22 23:19:15,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:20,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:25,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:29,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:33,645 WARN L539 Checker$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 [] [2023-12-22 23:19:37,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:41,653 WARN L539 Checker$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 [] [2023-12-22 23:19:45,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:49,672 WARN L539 Checker$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 [] [2023-12-22 23:19:53,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:19:57,679 WARN L539 Checker$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 [] [2023-12-22 23:20:01,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:05,703 WARN L539 Checker$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 [] [2023-12-22 23:20:09,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:13,725 WARN L539 Checker$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 [] [2023-12-22 23:20:17,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:21,747 WARN L539 Checker$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 [] [2023-12-22 23:20:25,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:29,768 WARN L539 Checker$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 [] [2023-12-22 23:20:33,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:37,779 WARN L539 Checker$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 [] [2023-12-22 23:20:41,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:45,787 WARN L539 Checker$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 [] [2023-12-22 23:20:49,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:20:53,798 WARN L539 Checker$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 [] [2023-12-22 23:20:56,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:01,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:05,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:09,886 WARN L539 Checker$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 [] [2023-12-22 23:21:13,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:17,897 WARN L539 Checker$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 [] [2023-12-22 23:21:21,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:25,916 WARN L539 Checker$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 [] [2023-12-22 23:21:29,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:33,937 WARN L539 Checker$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 [] [2023-12-22 23:21:37,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:41,947 WARN L539 Checker$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 [] [2023-12-22 23:21:45,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:49,961 WARN L539 Checker$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 [] [2023-12-22 23:21:53,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:21:57,977 WARN L539 Checker$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 [] [2023-12-22 23:22:01,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:06,003 WARN L539 Checker$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 [] [2023-12-22 23:22:10,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:14,011 WARN L539 Checker$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 [] [2023-12-22 23:22:18,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:22,031 WARN L539 Checker$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 [] [2023-12-22 23:22:26,042 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 [] [2023-12-22 23:22:26,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:22:26,870 INFO L93 Difference]: Finished difference Result 204 states and 292 transitions. [2023-12-22 23:22:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-22 23:22:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 4 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 88 [2023-12-22 23:22:26,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:22:26,873 INFO L225 Difference]: With dead ends: 204 [2023-12-22 23:22:26,873 INFO L226 Difference]: Without dead ends: 160 [2023-12-22 23:22:26,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-12-22 23:22:26,874 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 163 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 36 mSolverCounterUnsat, 45 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 192.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 45 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 193.2s IncrementalHoareTripleChecker+Time [2023-12-22 23:22:26,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 233 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 283 Invalid, 45 Unknown, 0 Unchecked, 193.2s Time] [2023-12-22 23:22:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-22 23:22:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 123. [2023-12-22 23:22:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 78 states have internal predecessors, (97), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-22 23:22:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 175 transitions. [2023-12-22 23:22:26,889 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 175 transitions. Word has length 88 [2023-12-22 23:22:26,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:22:26,889 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 175 transitions. [2023-12-22 23:22:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 4 states have call successors, (26), 3 states have call predecessors, (26), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-12-22 23:22:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 175 transitions. [2023-12-22 23:22:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 23:22:26,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:22:26,890 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:22:26,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-22 23:22:27,100 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 [2023-12-22 23:22:27,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:22:27,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:22:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1041022893, now seen corresponding path program 1 times [2023-12-22 23:22:27,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:22:27,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758221306] [2023-12-22 23:22:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:22:27,104 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 [2023-12-22 23:22:27,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:22:27,105 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) [2023-12-22 23:22:27,105 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 [2023-12-22 23:22:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:22:27,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 23:22:27,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:22:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-22 23:22:28,841 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 23:22:28,841 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 23:22:28,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758221306] [2023-12-22 23:22:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758221306] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 23:22:28,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 23:22:28,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-22 23:22:28,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89430588] [2023-12-22 23:22:28,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 23:22:28,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 23:22:28,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 23:22:28,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 23:22:28,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-12-22 23:22:28,843 INFO L87 Difference]: Start difference. First operand 123 states and 175 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 23:22:30,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:36,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:40,055 WARN L539 Checker$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 [] [2023-12-22 23:22:44,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:48,062 WARN L539 Checker$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 [] [2023-12-22 23:22:50,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:54,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:22:58,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:02,955 WARN L539 Checker$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 [] [2023-12-22 23:23:06,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:10,964 WARN L539 Checker$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 [] [2023-12-22 23:23:14,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:18,982 WARN L539 Checker$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 [] [2023-12-22 23:23:22,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:27,001 WARN L539 Checker$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 [] [2023-12-22 23:23:31,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:35,020 WARN L539 Checker$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 [] [2023-12-22 23:23:41,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 23:23:45,243 WARN L539 Checker$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 [] [2023-12-22 23:23:49,249 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 [] [2023-12-22 23:23:49,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 23:23:49,480 INFO L93 Difference]: Finished difference Result 343 states and 467 transitions. [2023-12-22 23:23:49,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-22 23:23:49,535 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 88 [2023-12-22 23:23:49,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 23:23:49,539 INFO L225 Difference]: With dead ends: 343 [2023-12-22 23:23:49,539 INFO L226 Difference]: Without dead ends: 253 [2023-12-22 23:23:49,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-12-22 23:23:49,542 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 152 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 49 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.4s IncrementalHoareTripleChecker+Time [2023-12-22 23:23:49,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 261 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 255 Invalid, 18 Unknown, 0 Unchecked, 79.4s Time] [2023-12-22 23:23:49,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-12-22 23:23:49,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2023-12-22 23:23:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 167 states have (on average 1.215568862275449) internal successors, (203), 167 states have internal predecessors, (203), 65 states have call successors, (65), 18 states have call predecessors, (65), 18 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-12-22 23:23:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 333 transitions. [2023-12-22 23:23:49,563 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 333 transitions. Word has length 88 [2023-12-22 23:23:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 23:23:49,563 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 333 transitions. [2023-12-22 23:23:49,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-22 23:23:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 333 transitions. [2023-12-22 23:23:49,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 23:23:49,564 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 23:23:49,564 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 23:23:49,587 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 [2023-12-22 23:23:49,780 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 [2023-12-22 23:23:49,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 23:23:49,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 23:23:49,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1742087471, now seen corresponding path program 1 times [2023-12-22 23:23:49,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 23:23:49,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714061625] [2023-12-22 23:23:49,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 23:23:49,781 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 [2023-12-22 23:23:49,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 23:23:49,782 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) [2023-12-22 23:23:49,783 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 [2023-12-22 23:23:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 23:23:52,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-22 23:23:52,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 23:24:47,535 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:24:55,735 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:25:03,842 WARN L293 SmtUtils]: Spent 8.11s 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) [2023-12-22 23:25:12,029 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:25:24,376 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:25:32,567 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:25:40,763 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:25:48,954 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:25:57,142 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:26:05,330 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:26:13,516 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:26:21,706 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:26:29,902 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:26:38,103 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:26:46,314 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:26:54,507 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:27:02,691 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:27:10,872 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:27:19,071 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:27:31,868 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:27:40,048 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:27:48,229 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:27:56,278 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse1 (fp.mul c_currentRoundingMode c_~last_1_var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0)))) (.cse2 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (and (= (_ bv0 32) (bvadd (_ bv500 32) c_~var_1_16~0)) (fp.geq c_~var_1_15~0 .cse0) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse1))) (not .cse2)) (= (bvadd (_ bv500 32) c_~last_1_var_1_16~0) (_ bv0 32)) (= c_~last_1_var_1_19~0 c_~var_1_19~0) (fp.leq c_~var_1_15~0 .cse3) (bvsle c_~var_1_9~0 (_ bv1073741823 32)) (fp.leq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge c_~var_1_11~0 (_ bv1073741823 32)) (fp.geq c_~var_1_14~0 .cse0) (bvsge c_~var_1_10~0 (_ bv536870911 32)) (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.geq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0)))) (and (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_5~0 .cse5)))) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse1))) .cse2) (bvsge c_~var_1_9~0 (_ bv536870911 32)) (fp.geq c_~var_1_7~0 .cse5) (bvsle c_~var_1_10~0 (_ bv1073741823 32)) (fp.leq c_~var_1_14~0 .cse3) (bvsle c_~var_1_11~0 (_ bv2147483646 32)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2023-12-22 23:28:00,339 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (let ((.cse1 (fp.mul c_currentRoundingMode c_~last_1_var_1_1~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 507.0 8.0)))) (.cse2 (fp.lt c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode 2305843009213691390.0))) (and (= (_ bv0 32) (bvadd (_ bv500 32) c_~var_1_16~0)) (fp.geq c_~var_1_15~0 .cse0) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode (fp.neg c_~var_1_5~0) .cse1))) (not .cse2)) (= (bvadd (_ bv500 32) c_~last_1_var_1_16~0) (_ bv0 32)) (= c_~last_1_var_1_19~0 c_~var_1_19~0) (fp.leq c_~var_1_15~0 .cse3) (bvsle c_~var_1_9~0 (_ bv1073741823 32)) (fp.leq c_~var_1_7~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (= (_ bv1 8) c_~last_1_var_1_17~0) (bvsge c_~var_1_11~0 (_ bv1073741823 32)) (fp.geq c_~var_1_14~0 .cse0) (bvsge c_~var_1_10~0 (_ bv536870911 32)) (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (or (and (fp.geq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse4))) (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse0)))) (and (fp.leq c_~var_1_5~0 ((_ to_fp 11 53) c_currentRoundingMode .cse4)) (fp.geq c_~var_1_5~0 .cse5)))) (or (not (fp.gt c_~var_1_7~0 (fp.mul c_currentRoundingMode c_~var_1_5~0 .cse1))) .cse2) (bvsge c_~var_1_9~0 (_ bv536870911 32)) (fp.geq c_~var_1_7~0 .cse5) (bvsle c_~var_1_10~0 (_ bv1073741823 32)) (fp.leq c_~var_1_14~0 .cse3) (bvsle c_~var_1_11~0 (_ bv2147483646 32)) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from true [2023-12-22 23:28:08,533 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:28:16,726 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:28:24,835 WARN L293 SmtUtils]: Spent 8.11s 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) [2023-12-22 23:28:33,022 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:28:41,211 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:28:49,399 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:28:56,803 WARN L293 SmtUtils]: Spent 7.40s 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) [2023-12-22 23:29:04,987 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:29:13,168 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:29:20,503 WARN L293 SmtUtils]: Spent 7.33s 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) [2023-12-22 23:29:28,680 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:29:36,860 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:29:45,053 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:29:53,237 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:30:01,428 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:30:09,617 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:30:17,800 WARN L293 SmtUtils]: Spent 8.18s 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) [2023-12-22 23:30:26,002 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:30:34,197 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:30:42,388 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:30:55,216 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:31:03,406 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:31:11,596 WARN L293 SmtUtils]: Spent 8.19s 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) [2023-12-22 23:31:19,800 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:31:28,056 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:31:36,261 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:31:44,387 WARN L293 SmtUtils]: Spent 8.13s 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) [2023-12-22 23:31:52,599 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:31:59,421 WARN L293 SmtUtils]: Spent 6.82s 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) [2023-12-22 23:32:11,326 WARN L293 SmtUtils]: Spent 8.22s 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) [2023-12-22 23:32:19,536 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:32:28,302 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:32:36,509 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:32:48,525 WARN L293 SmtUtils]: Spent 8.20s 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) [2023-12-22 23:32:56,733 WARN L293 SmtUtils]: Spent 8.21s 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) Received shutdown request... [2023-12-22 23:33:04,259 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 [2023-12-22 23:33:04,285 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 [2023-12-22 23:33:04,941 WARN L293 SmtUtils]: Spent 8.21s 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) [2023-12-22 23:33:05,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-12-22 23:33:05,460 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-22 23:33:05,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-22 23:33:05,505 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 23:33:05,505 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 89 with TraceHistMax 13,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-22 23:33:05,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-22 23:33:05,509 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 23:33:05,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 11:33:05 BoogieIcfgContainer [2023-12-22 23:33:05,511 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 23:33:05,511 INFO L158 Benchmark]: Toolchain (without parser) took 886394.14ms. Allocated memory is still 324.0MB. Free memory was 281.7MB in the beginning and 242.4MB in the end (delta: 39.4MB). Peak memory consumption was 179.7MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,511 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 225.4MB. Free memory is still 176.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 23:33:05,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.87ms. Allocated memory is still 324.0MB. Free memory was 281.5MB in the beginning and 267.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.24ms. Allocated memory is still 324.0MB. Free memory was 267.4MB in the beginning and 265.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,512 INFO L158 Benchmark]: Boogie Preprocessor took 39.58ms. Allocated memory is still 324.0MB. Free memory was 265.0MB in the beginning and 261.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,512 INFO L158 Benchmark]: RCFGBuilder took 19513.42ms. Allocated memory is still 324.0MB. Free memory was 261.9MB in the beginning and 242.2MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,512 INFO L158 Benchmark]: TraceAbstraction took 866525.26ms. Allocated memory is still 324.0MB. Free memory was 241.5MB in the beginning and 242.4MB in the end (delta: -896.8kB). Peak memory consumption was 139.8MB. Max. memory is 8.0GB. [2023-12-22 23:33:05,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 225.4MB. Free memory is still 176.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 270.87ms. Allocated memory is still 324.0MB. Free memory was 281.5MB in the beginning and 267.4MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.24ms. Allocated memory is still 324.0MB. Free memory was 267.4MB in the beginning and 265.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.58ms. Allocated memory is still 324.0MB. Free memory was 265.0MB in the beginning and 261.9MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 19513.42ms. Allocated memory is still 324.0MB. Free memory was 261.9MB in the beginning and 242.2MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 866525.26ms. Allocated memory is still 324.0MB. Free memory was 241.5MB in the beginning and 242.4MB in the end (delta: -896.8kB). Peak memory consumption was 139.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 89 with TraceHistMax 13,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 866.5s, OverallIterations: 5, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 300.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 mSolverCounterUnknown, 396 SdHoareTripleChecker+Valid, 298.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 742 SdHoareTripleChecker+Invalid, 296.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 501 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 241 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=4, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 56 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 350 NumberOfCodeBlocks, 350 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 433 ConstructedInterpolants, 0 QuantifiedInterpolants, 1284 SizeOfPredicates, 9 NumberOfNonLiveVariables, 650 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 1530/1560 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