/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_loopvsstraightlinecode_100-1loop_file-91.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 22:15:41,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 22:15:41,405 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 22:15:41,408 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 22:15:41,409 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 22:15:41,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 22:15:41,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 22:15:41,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 22:15:41,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 22:15:41,432 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 22:15:41,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 22:15:41,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 22:15:41,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 22:15:41,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 22:15:41,434 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 22:15:41,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 22:15:41,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 22:15:41,434 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 22:15:41,434 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 22:15:41,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 22:15:41,435 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 22:15:41,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 22:15:41,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 22:15:41,435 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 22:15:41,436 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 22:15:41,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 22:15:41,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 22:15:41,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 22:15:41,438 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 22:15:41,439 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 22:15:41,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 22:15:41,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 22:15:41,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 22:15:41,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 22:15:41,633 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 22:15:41,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-91.i [2023-12-23 22:15:42,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 22:15:42,831 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 22:15:42,840 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-91.i [2023-12-23 22:15:42,848 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb3c14a5/81622f80b4854c3b94c1102df6447c81/FLAG762d77032 [2023-12-23 22:15:42,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbb3c14a5/81622f80b4854c3b94c1102df6447c81 [2023-12-23 22:15:42,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 22:15:42,862 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 22:15:42,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 22:15:42,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 22:15:42,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 22:15:42,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:15:42" (1/1) ... [2023-12-23 22:15:42,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac3238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:42, skipping insertion in model container [2023-12-23 22:15:42,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 10:15:42" (1/1) ... [2023-12-23 22:15:42,906 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 22:15:43,043 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_loopvsstraightlinecode_100-1loop_file-91.i[916,929] [2023-12-23 22:15:43,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 22:15:43,106 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 22:15:43,115 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_loopvsstraightlinecode_100-1loop_file-91.i[916,929] [2023-12-23 22:15:43,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 22:15:43,174 INFO L206 MainTranslator]: Completed translation [2023-12-23 22:15:43,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43 WrapperNode [2023-12-23 22:15:43,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 22:15:43,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 22:15:43,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 22:15:43,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 22:15:43,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,213 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 190 [2023-12-23 22:15:43,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 22:15:43,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 22:15:43,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 22:15:43,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 22:15:43,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,238 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 22:15:43,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 22:15:43,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 22:15:43,283 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 22:15:43,283 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 22:15:43,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (1/1) ... [2023-12-23 22:15:43,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 22:15:43,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 22:15:43,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 22:15:43,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 22:15:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 22:15:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 22:15:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 22:15:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 22:15:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 22:15:43,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 22:15:43,423 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 22:15:43,425 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 22:16:11,756 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 22:16:11,788 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 22:16:11,789 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 22:16:11,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:16:11 BoogieIcfgContainer [2023-12-23 22:16:11,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 22:16:11,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 22:16:11,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 22:16:11,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 22:16:11,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 10:15:42" (1/3) ... [2023-12-23 22:16:11,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac3e9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:16:11, skipping insertion in model container [2023-12-23 22:16:11,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 10:15:43" (2/3) ... [2023-12-23 22:16:11,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac3e9c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 10:16:11, skipping insertion in model container [2023-12-23 22:16:11,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 10:16:11" (3/3) ... [2023-12-23 22:16:11,795 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-91.i [2023-12-23 22:16:11,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 22:16:11,808 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 22:16:11,852 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 22:16:11,857 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;@254590de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 22:16:11,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 22:16:11,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-23 22:16:11,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-23 22:16:11,890 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:16:11,890 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:16:11,891 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:16:11,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:16:11,894 INFO L85 PathProgramCache]: Analyzing trace with hash -672222521, now seen corresponding path program 1 times [2023-12-23 22:16:11,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:16:11,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344841751] [2023-12-23 22:16:11,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:16:11,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:16:11,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:16:11,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 22:16:11,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 22:16:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:16:13,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 22:16:13,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:16:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 620 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-12-23 22:16:13,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 22:16:13,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:16:13,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [344841751] [2023-12-23 22:16:13,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [344841751] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 22:16:13,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 22:16:13,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 22:16:13,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108687934] [2023-12-23 22:16:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 22:16:13,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 22:16:13,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:16:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 22:16:13,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 22:16:13,190 INFO L87 Difference]: Start difference. First operand has 75 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 22:16:18,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:18,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:16:18,370 INFO L93 Difference]: Finished difference Result 149 states and 260 transitions. [2023-12-23 22:16:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 22:16:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-23 22:16:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:16:18,377 INFO L225 Difference]: With dead ends: 149 [2023-12-23 22:16:18,377 INFO L226 Difference]: Without dead ends: 73 [2023-12-23 22:16:18,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 22:16:18,382 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-23 22:16:18,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2023-12-23 22:16:18,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-23 22:16:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-12-23 22:16:18,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 46 states have (on average 1.3695652173913044) internal successors, (63), 46 states have internal predecessors, (63), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-23 22:16:18,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 113 transitions. [2023-12-23 22:16:18,427 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 113 transitions. Word has length 161 [2023-12-23 22:16:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:16:18,427 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 113 transitions. [2023-12-23 22:16:18,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 22:16:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 113 transitions. [2023-12-23 22:16:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-23 22:16:18,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:16:18,430 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:16:18,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-23 22:16:18,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:16:18,647 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:16:18,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:16:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash -388789755, now seen corresponding path program 1 times [2023-12-23 22:16:18,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:16:18,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [383101370] [2023-12-23 22:16:18,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:16:18,650 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:16:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:16:18,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 22:16:18,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 22:16:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:16:19,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 22:16:19,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:16:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 318 proven. 9 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-12-23 22:16:20,458 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:16:20,919 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:16:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [383101370] [2023-12-23 22:16:20,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [383101370] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 22:16:20,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [355717601] [2023-12-23 22:16:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:16:20,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 22:16:20,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 22:16:20,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 22:16:20,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-23 22:16:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:16:23,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 22:16:23,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:16:23,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 318 proven. 9 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-12-23 22:16:23,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:16:23,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [355717601] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 22:16:23,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 22:16:23,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-23 22:16:23,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127654715] [2023-12-23 22:16:23,805 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 22:16:23,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 22:16:23,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:16:23,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 22:16:23,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-23 22:16:23,807 INFO L87 Difference]: Start difference. First operand 73 states and 113 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 22:16:31,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:35,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:39,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:39,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:16:39,794 INFO L93 Difference]: Finished difference Result 151 states and 230 transitions. [2023-12-23 22:16:39,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 22:16:39,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-23 22:16:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:16:39,801 INFO L225 Difference]: With dead ends: 151 [2023-12-23 22:16:39,802 INFO L226 Difference]: Without dead ends: 79 [2023-12-23 22:16:39,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-23 22:16:39,806 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 77 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-23 22:16:39,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 188 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2023-12-23 22:16:39,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-12-23 22:16:39,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 77. [2023-12-23 22:16:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 49 states have internal predecessors, (65), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-12-23 22:16:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 115 transitions. [2023-12-23 22:16:39,835 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 115 transitions. Word has length 161 [2023-12-23 22:16:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:16:39,837 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 115 transitions. [2023-12-23 22:16:39,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-23 22:16:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 115 transitions. [2023-12-23 22:16:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-23 22:16:39,842 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:16:39,842 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:16:39,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-23 22:16:40,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 22:16:40,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:16:40,258 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:16:40,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:16:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1983571550, now seen corresponding path program 1 times [2023-12-23 22:16:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:16:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208726907] [2023-12-23 22:16:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:16:40,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:16:40,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:16:40,261 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 22:16:40,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 22:16:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:16:42,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 22:16:42,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:16:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 612 proven. 30 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2023-12-23 22:16:43,533 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:16:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2023-12-23 22:16:44,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:16:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208726907] [2023-12-23 22:16:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208726907] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 22:16:44,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 22:16:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 22:16:44,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555041268] [2023-12-23 22:16:44,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 22:16:44,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 22:16:44,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:16:44,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 22:16:44,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 22:16:44,577 INFO L87 Difference]: Start difference. First operand 77 states and 115 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-23 22:16:50,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:54,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:58,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:16:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:16:59,971 INFO L93 Difference]: Finished difference Result 184 states and 273 transitions. [2023-12-23 22:16:59,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 22:16:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 162 [2023-12-23 22:16:59,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:16:59,973 INFO L225 Difference]: With dead ends: 184 [2023-12-23 22:16:59,973 INFO L226 Difference]: Without dead ends: 108 [2023-12-23 22:16:59,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 22:16:59,974 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 100 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 34 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-23 22:16:59,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 217 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 192 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2023-12-23 22:16:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-23 22:16:59,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2023-12-23 22:16:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 60 states have (on average 1.25) internal successors, (75), 61 states have internal predecessors, (75), 39 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2023-12-23 22:16:59,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 153 transitions. [2023-12-23 22:16:59,984 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 153 transitions. Word has length 162 [2023-12-23 22:16:59,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:16:59,985 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 153 transitions. [2023-12-23 22:16:59,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-12-23 22:16:59,985 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 153 transitions. [2023-12-23 22:16:59,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-23 22:16:59,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:16:59,986 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:17:00,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-23 22:17:00,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:17:00,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:17:00,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:17:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1725406112, now seen corresponding path program 1 times [2023-12-23 22:17:00,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:17:00,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088572155] [2023-12-23 22:17:00,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:17:00,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:17:00,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:17:00,214 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 22:17:00,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 22:17:01,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:17:02,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 22:17:02,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:17:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 680 proven. 63 refuted. 0 times theorem prover too weak. 457 trivial. 0 not checked. [2023-12-23 22:17:05,580 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 22:17:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 75 proven. 66 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2023-12-23 22:17:08,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 22:17:08,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088572155] [2023-12-23 22:17:08,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088572155] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 22:17:08,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 22:17:08,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2023-12-23 22:17:08,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876595511] [2023-12-23 22:17:08,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 22:17:08,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 22:17:08,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 22:17:08,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 22:17:08,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-12-23 22:17:08,460 INFO L87 Difference]: Start difference. First operand 103 states and 153 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (37), 3 states have call predecessors, (37), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-12-23 22:17:16,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:20,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:24,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:28,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:32,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:36,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:40,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:44,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:48,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:52,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:17:56,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:00,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:04,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:08,916 WARN L539 Checker$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 [] [2023-12-23 22:18:12,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:16,937 WARN L539 Checker$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 [] [2023-12-23 22:18:20,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:24,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 22:18:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 22:18:32,080 INFO L93 Difference]: Finished difference Result 379 states and 527 transitions. [2023-12-23 22:18:32,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-23 22:18:32,081 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (37), 3 states have call predecessors, (37), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 162 [2023-12-23 22:18:32,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 22:18:32,083 INFO L225 Difference]: With dead ends: 379 [2023-12-23 22:18:32,083 INFO L226 Difference]: Without dead ends: 299 [2023-12-23 22:18:32,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 313 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=500, Invalid=1306, Unknown=0, NotChecked=0, Total=1806 [2023-12-23 22:18:32,086 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 266 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 229 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.1s IncrementalHoareTripleChecker+Time [2023-12-23 22:18:32,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 646 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 670 Invalid, 18 Unknown, 0 Unchecked, 80.1s Time] [2023-12-23 22:18:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-23 22:18:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 198. [2023-12-23 22:18:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 123 states have internal predecessors, (146), 64 states have call successors, (64), 11 states have call predecessors, (64), 11 states have return successors, (64), 63 states have call predecessors, (64), 64 states have call successors, (64) [2023-12-23 22:18:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2023-12-23 22:18:32,122 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 274 transitions. Word has length 162 [2023-12-23 22:18:32,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 22:18:32,123 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 274 transitions. [2023-12-23 22:18:32,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (37), 3 states have call predecessors, (37), 7 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-12-23 22:18:32,123 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 274 transitions. [2023-12-23 22:18:32,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-23 22:18:32,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 22:18:32,124 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 22:18:32,162 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 [2023-12-23 22:18:32,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:18:32,325 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 22:18:32,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 22:18:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1668147810, now seen corresponding path program 1 times [2023-12-23 22:18:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 22:18:32,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402507203] [2023-12-23 22:18:32,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 22:18:32,326 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 22:18:32,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 22:18:32,327 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 22:18:32,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-23 22:18:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 22:18:34,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-23 22:18:34,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 22:23:12,552 WARN L293 SmtUtils]: Spent 1.06m on a formula simplification that was a NOOP. DAG size: 147 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 22:23:20,989 WARN L293 SmtUtils]: Spent 8.38s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:23:27,242 WARN L293 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:23:35,372 WARN L293 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:23:43,565 WARN L293 SmtUtils]: Spent 8.19s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:23:51,810 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:00,056 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:08,302 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:16,544 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:24,790 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:33,040 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:41,300 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:24:49,489 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) [2023-12-23 22:24:57,743 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:05,996 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:14,190 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) [2023-12-23 22:25:22,439 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:30,697 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:38,941 WARN L293 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:47,194 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:25:55,443 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:03,718 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:11,973 WARN L293 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:20,239 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:28,518 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:36,787 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:45,044 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:26:53,317 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:01,577 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:09,844 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:18,105 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:26,375 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:34,636 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:42,903 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:51,172 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:27:57,927 WARN L293 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:06,213 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:14,492 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:22,758 WARN L293 SmtUtils]: Spent 8.26s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:31,030 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:39,307 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:47,576 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:28:55,845 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:04,158 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:12,381 WARN L293 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:20,659 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:28,951 WARN L293 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:37,265 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:45,540 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 22:29:49,628 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse18 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse8 ((_ zero_extend 24) c_~var_1_20~0)) (.cse14 ((_ zero_extend 24) c_~var_1_5~0))) (let ((.cse4 ((_ zero_extend 24) c_~var_1_1~0)) (.cse12 (fp.add c_currentRoundingMode c_~var_1_26~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2573.0 20.0)))) (.cse11 (fp.gt c_~var_1_27~0 c_~var_1_28~0)) (.cse5 ((_ zero_extend 16) c_~var_1_30~0)) (.cse1 (bvneg .cse14)) (.cse7 (bvneg .cse8)) (.cse2 ((_ zero_extend 24) c_~var_1_6~0)) (.cse15 ((_ to_fp 11 53) c_currentRoundingMode .cse18))) (and (= c_~var_1_32~0 c_~var_1_26~0) (= c_~last_1_var_1_31~0 (_ bv100000 32)) (let ((.cse0 (fp.lt c_~var_1_13~0 (fp.mul c_currentRoundingMode c_~var_1_32~0 c_~var_1_12~0)))) (or (and (not .cse0) (= |c_ULTIMATE.start_step_~stepLocal_3~0#1| (_ bv0 8))) (and .cse0 (= (_ bv1 8) |c_ULTIMATE.start_step_~stepLocal_3~0#1|)))) (= c_~var_1_10~0 c_~var_1_35~0) (fp.leq c_~var_1_26~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 4611686018427387900.0))) (= (_ bv256 16) c_~last_1_var_1_19~0) (= ((_ extract 7 0) (bvadd ((_ zero_extend 24) c_~var_1_4~0) .cse1)) c_~var_1_1~0) (= (_ bv0 8) c_~last_1_var_1_9~0) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= .cse2 c_~var_1_14~0) .cse3) (and (not .cse3) (= c_~var_1_14~0 .cse4)))) (let ((.cse6 (bvsgt .cse8 (_ bv128 32)))) (or (and (= ((_ extract 15 0) (bvadd (_ bv4294967168 32) .cse5)) c_~var_1_25~0) (not .cse6)) (and (= ((_ extract 15 0) (bvadd .cse7 .cse5)) c_~var_1_25~0) .cse6))) (let ((.cse9 (bvadd .cse2 (bvneg .cse4)))) (let ((.cse10 (bvslt .cse9 (_ bv0 32)))) (or (and (= ((_ extract 15 0) (bvneg .cse9)) c_~var_1_7~0) .cse10) (and (not .cse10) (= ((_ extract 15 0) .cse9) c_~var_1_7~0))))) (or (not .cse11) (not (fp.leq c_~var_1_13~0 (fp.sub c_currentRoundingMode .cse12 c_~var_1_27~0)))) (or (not (fp.leq c_~var_1_13~0 (fp.sub c_currentRoundingMode .cse12 c_~var_1_28~0))) .cse11) (bvsge .cse5 (_ bv32767 32)) (bvsge ((_ zero_extend 24) c_~var_1_24~0) (_ bv1 32)) (let ((.cse13 (bvsgt .cse14 .cse8))) (or (and (= (bvadd .cse2 .cse1) c_~var_1_21~0) .cse13) (and (not .cse13) (= (bvadd .cse7 .cse2) c_~var_1_21~0)))) (= c_~var_1_20~0 ((_ extract 7 0) (bvadd .cse2 .cse14))) (fp.geq c_~var_1_26~0 .cse15) (= (_ bv100000 32) c_~var_1_31~0) (= (_ bv256 16) c_~var_1_19~0) (= ((_ zero_extend 8) c_~var_1_1~0) c_~var_1_34~0) (= c_~var_1_10~0 c_~var_1_9~0) (let ((.cse16 (fp.gt c_~var_1_12~0 c_~var_1_13~0))) (or (and .cse16 (= c_~var_1_11~0 c_~var_1_12~0)) (and (not .cse16) (= c_~var_1_11~0 c_~var_1_13~0)))) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse17 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.geq c_~var_1_13~0 .cse15) (fp.leq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode .cse17))) (and (fp.leq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse18))) (fp.geq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse17))))))))) is different from false [2023-12-23 22:29:53,701 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse18 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0))) (.cse8 ((_ zero_extend 24) c_~var_1_20~0)) (.cse14 ((_ zero_extend 24) c_~var_1_5~0))) (let ((.cse4 ((_ zero_extend 24) c_~var_1_1~0)) (.cse12 (fp.add c_currentRoundingMode c_~var_1_26~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 2573.0 20.0)))) (.cse11 (fp.gt c_~var_1_27~0 c_~var_1_28~0)) (.cse5 ((_ zero_extend 16) c_~var_1_30~0)) (.cse1 (bvneg .cse14)) (.cse7 (bvneg .cse8)) (.cse2 ((_ zero_extend 24) c_~var_1_6~0)) (.cse15 ((_ to_fp 11 53) c_currentRoundingMode .cse18))) (and (= c_~var_1_32~0 c_~var_1_26~0) (= c_~last_1_var_1_31~0 (_ bv100000 32)) (let ((.cse0 (fp.lt c_~var_1_13~0 (fp.mul c_currentRoundingMode c_~var_1_32~0 c_~var_1_12~0)))) (or (and (not .cse0) (= |c_ULTIMATE.start_step_~stepLocal_3~0#1| (_ bv0 8))) (and .cse0 (= (_ bv1 8) |c_ULTIMATE.start_step_~stepLocal_3~0#1|)))) (= c_~var_1_10~0 c_~var_1_35~0) (fp.leq c_~var_1_26~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 4611686018427387900.0))) (= (_ bv256 16) c_~last_1_var_1_19~0) (= ((_ extract 7 0) (bvadd ((_ zero_extend 24) c_~var_1_4~0) .cse1)) c_~var_1_1~0) (= (_ bv0 8) c_~last_1_var_1_9~0) (let ((.cse3 (bvsgt .cse2 .cse4))) (or (and (= .cse2 c_~var_1_14~0) .cse3) (and (not .cse3) (= c_~var_1_14~0 .cse4)))) (let ((.cse6 (bvsgt .cse8 (_ bv128 32)))) (or (and (= ((_ extract 15 0) (bvadd (_ bv4294967168 32) .cse5)) c_~var_1_25~0) (not .cse6)) (and (= ((_ extract 15 0) (bvadd .cse7 .cse5)) c_~var_1_25~0) .cse6))) (let ((.cse9 (bvadd .cse2 (bvneg .cse4)))) (let ((.cse10 (bvslt .cse9 (_ bv0 32)))) (or (and (= ((_ extract 15 0) (bvneg .cse9)) c_~var_1_7~0) .cse10) (and (not .cse10) (= ((_ extract 15 0) .cse9) c_~var_1_7~0))))) (or (not .cse11) (not (fp.leq c_~var_1_13~0 (fp.sub c_currentRoundingMode .cse12 c_~var_1_27~0)))) (or (not (fp.leq c_~var_1_13~0 (fp.sub c_currentRoundingMode .cse12 c_~var_1_28~0))) .cse11) (bvsge .cse5 (_ bv32767 32)) (bvsge ((_ zero_extend 24) c_~var_1_24~0) (_ bv1 32)) (let ((.cse13 (bvsgt .cse14 .cse8))) (or (and (= (bvadd .cse2 .cse1) c_~var_1_21~0) .cse13) (and (not .cse13) (= (bvadd .cse7 .cse2) c_~var_1_21~0)))) (= c_~var_1_20~0 ((_ extract 7 0) (bvadd .cse2 .cse14))) (fp.geq c_~var_1_26~0 .cse15) (= (_ bv100000 32) c_~var_1_31~0) (= (_ bv256 16) c_~var_1_19~0) (= ((_ zero_extend 8) c_~var_1_1~0) c_~var_1_34~0) (= c_~var_1_10~0 c_~var_1_9~0) (let ((.cse16 (fp.gt c_~var_1_12~0 c_~var_1_13~0))) (or (and .cse16 (= c_~var_1_11~0 c_~var_1_12~0)) (and (not .cse16) (= c_~var_1_11~0 c_~var_1_13~0)))) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse17 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0))) (or (and (fp.geq c_~var_1_13~0 .cse15) (fp.leq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode .cse17))) (and (fp.leq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse18))) (fp.geq c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (fp.neg .cse17))))))))) is different from true Received shutdown request... [2023-12-23 22:30:28,093 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 (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 22:30:28,093 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 22:30:29,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-23 22:30:29,304 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 [2023-12-23 22:30:29,371 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 [2023-12-23 22:30:29,373 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 22:30:29,374 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 22:30:29,377 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-23 22:30:29,378 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 22:30:29,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 10:30:29 BoogieIcfgContainer [2023-12-23 22:30:29,380 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 22:30:29,380 INFO L158 Benchmark]: Toolchain (without parser) took 886518.73ms. Allocated memory was 225.4MB in the beginning and 294.6MB in the end (delta: 69.2MB). Free memory was 165.7MB in the beginning and 252.9MB in the end (delta: -87.3MB). Peak memory consumption was 153.9MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,380 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 225.4MB. Free memory is still 175.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 22:30:29,381 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.84ms. Allocated memory is still 225.4MB. Free memory was 165.7MB in the beginning and 147.7MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,381 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.54ms. Allocated memory is still 225.4MB. Free memory was 147.7MB in the beginning and 144.7MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,381 INFO L158 Benchmark]: Boogie Preprocessor took 67.88ms. Allocated memory is still 225.4MB. Free memory was 144.7MB in the beginning and 139.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,381 INFO L158 Benchmark]: RCFGBuilder took 28506.42ms. Allocated memory is still 225.4MB. Free memory was 139.4MB in the beginning and 105.4MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,381 INFO L158 Benchmark]: TraceAbstraction took 857588.38ms. Allocated memory was 225.4MB in the beginning and 294.6MB in the end (delta: 69.2MB). Free memory was 104.8MB in the beginning and 252.9MB in the end (delta: -148.1MB). Peak memory consumption was 93.1MB. Max. memory is 8.0GB. [2023-12-23 22:30:29,382 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 225.4MB. Free memory is still 175.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 311.84ms. Allocated memory is still 225.4MB. Free memory was 165.7MB in the beginning and 147.7MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.54ms. Allocated memory is still 225.4MB. Free memory was 147.7MB in the beginning and 144.7MB in the end (delta: 3.0MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.88ms. Allocated memory is still 225.4MB. Free memory was 144.7MB in the beginning and 139.4MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 28506.42ms. Allocated memory is still 225.4MB. Free memory was 139.4MB in the beginning and 105.4MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 857588.38ms. Allocated memory was 225.4MB in the beginning and 294.6MB in the end (delta: 69.2MB). Free memory was 104.8MB in the beginning and 252.9MB in the end (delta: -148.1MB). Peak memory consumption was 93.1MB. 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 163 with TraceHistMax 25,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 857.5s, OverallIterations: 5, TraceHistogramMax: 25, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 120.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 mSolverCounterUnknown, 503 SdHoareTripleChecker+Valid, 116.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 443 mSDsluCounter, 1161 SdHoareTripleChecker+Invalid, 114.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 645 mSDsCounter, 267 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1010 IncrementalHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 267 mSolverCounterUnsat, 516 mSDtfsCounter, 1010 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1207 GetRequests, 1147 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=4, InterpolantAutomatonStates: 56, 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, 108 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.6s SatisfiabilityAnalysisTime, 11.0s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1124 ConstructedInterpolants, 0 QuantifiedInterpolants, 2558 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1384 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 8193/8400 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