/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 16:14:32,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 16:14:32,092 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 16:14:32,096 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 16:14:32,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 16:14:32,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 16:14:32,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 16:14:32,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 16:14:32,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 16:14:32,123 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 16:14:32,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 16:14:32,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 16:14:32,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 16:14:32,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 16:14:32,124 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 16:14:32,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 16:14:32,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 16:14:32,125 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 16:14:32,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 16:14:32,125 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 16:14:32,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 16:14:32,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 16:14:32,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 16:14:32,127 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 16:14:32,127 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 16:14:32,127 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 16:14:32,127 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 16:14:32,127 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 16:14:32,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:14:32,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 16:14:32,128 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 16:14:32,129 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 16:14:32,129 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 16:14:32,129 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 16:14:32,129 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 16:14:32,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 16:14:32,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 16:14:32,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 16:14:32,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 16:14:32,344 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 16:14:32,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2023-12-23 16:14:33,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 16:14:33,687 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 16:14:33,687 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2023-12-23 16:14:33,694 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abc2d5f7/f2502566b6e6498ba377e60f0a5bd1e5/FLAGfcb24380b [2023-12-23 16:14:33,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0abc2d5f7/f2502566b6e6498ba377e60f0a5bd1e5 [2023-12-23 16:14:33,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 16:14:33,706 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 16:14:33,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 16:14:33,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 16:14:33,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 16:14:33,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:14:33" (1/1) ... [2023-12-23 16:14:33,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9404bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:33, skipping insertion in model container [2023-12-23 16:14:33,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:14:33" (1/1) ... [2023-12-23 16:14:33,738 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 16:14:33,841 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i[919,932] [2023-12-23 16:14:33,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:14:33,936 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 16:14:33,945 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i[919,932] [2023-12-23 16:14:33,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:14:34,004 INFO L206 MainTranslator]: Completed translation [2023-12-23 16:14:34,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34 WrapperNode [2023-12-23 16:14:34,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 16:14:34,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 16:14:34,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 16:14:34,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 16:14:34,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,057 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 197 [2023-12-23 16:14:34,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 16:14:34,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 16:14:34,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 16:14:34,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 16:14:34,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,082 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 16:14:34,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 16:14:34,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 16:14:34,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 16:14:34,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 16:14:34,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (1/1) ... [2023-12-23 16:14:34,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:14:34,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 16:14:34,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 16:14:34,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 16:14:34,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 16:14:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 16:14:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 16:14:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 16:14:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 16:14:34,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 16:14:34,292 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 16:14:34,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 16:14:38,275 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 16:14:38,324 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 16:14:38,324 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 16:14:38,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:14:38 BoogieIcfgContainer [2023-12-23 16:14:38,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 16:14:38,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 16:14:38,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 16:14:38,328 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 16:14:38,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:14:33" (1/3) ... [2023-12-23 16:14:38,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3fcd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:14:38, skipping insertion in model container [2023-12-23 16:14:38,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:14:34" (2/3) ... [2023-12-23 16:14:38,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c3fcd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:14:38, skipping insertion in model container [2023-12-23 16:14:38,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:14:38" (3/3) ... [2023-12-23 16:14:38,331 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-33.i [2023-12-23 16:14:38,343 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 16:14:38,343 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 16:14:38,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 16:14:38,394 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;@773b5d6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 16:14:38,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 16:14:38,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 49 states have internal predecessors, (70), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 16:14:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-23 16:14:38,409 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:14:38,409 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:14:38,410 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:14:38,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:14:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash -422014906, now seen corresponding path program 1 times [2023-12-23 16:14:38,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:14:38,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125045037] [2023-12-23 16:14:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:14:38,423 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:38,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:14:38,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 16:14:38,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 16:14:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:14:38,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 16:14:38,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:14:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-23 16:14:38,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:14:38,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:14:38,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125045037] [2023-12-23 16:14:38,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125045037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:14:38,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:14:38,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:14:38,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571592008] [2023-12-23 16:14:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:14:38,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 16:14:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:14:38,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 16:14:38,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:14:38,981 INFO L87 Difference]: Start difference. First operand has 85 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 49 states have internal predecessors, (70), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) 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, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:14:40,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:14:40,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:14:40,971 INFO L93 Difference]: Finished difference Result 165 states and 304 transitions. [2023-12-23 16:14:41,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 16:14:41,014 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, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 206 [2023-12-23 16:14:41,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:14:41,019 INFO L225 Difference]: With dead ends: 165 [2023-12-23 16:14:41,019 INFO L226 Difference]: Without dead ends: 81 [2023-12-23 16:14:41,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:14:41,024 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 16:14:41,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 16:14:41,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-12-23 16:14:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-12-23 16:14:41,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 45 states have internal predecessors, (57), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 16:14:41,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 125 transitions. [2023-12-23 16:14:41,055 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 125 transitions. Word has length 206 [2023-12-23 16:14:41,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:14:41,056 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 125 transitions. [2023-12-23 16:14:41,056 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, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:14:41,056 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 125 transitions. [2023-12-23 16:14:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-23 16:14:41,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:14:41,059 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:14:41,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 16:14:41,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:41,272 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:14:41,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:14:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash 995657026, now seen corresponding path program 1 times [2023-12-23 16:14:41,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:14:41,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871771341] [2023-12-23 16:14:41,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:14:41,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:41,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:14:41,275 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 16:14:41,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 16:14:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:14:41,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 16:14:41,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:14:44,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-23 16:14:44,489 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:14:44,489 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:14:44,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871771341] [2023-12-23 16:14:44,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871771341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:14:44,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:14:44,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:14:44,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579656998] [2023-12-23 16:14:44,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:14:44,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:14:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:14:44,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:14:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:14:44,492 INFO L87 Difference]: Start difference. First operand 81 states and 125 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:14:46,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:14:46,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:14:46,410 INFO L93 Difference]: Finished difference Result 232 states and 362 transitions. [2023-12-23 16:14:46,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:14:46,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 206 [2023-12-23 16:14:46,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:14:46,415 INFO L225 Difference]: With dead ends: 232 [2023-12-23 16:14:46,415 INFO L226 Difference]: Without dead ends: 152 [2023-12-23 16:14:46,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:14:46,416 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 18 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 16:14:46,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 217 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 16:14:46,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-23 16:14:46,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 141. [2023-12-23 16:14:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 70 states have internal predecessors, (83), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:14:46,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 219 transitions. [2023-12-23 16:14:46,436 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 219 transitions. Word has length 206 [2023-12-23 16:14:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:14:46,437 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 219 transitions. [2023-12-23 16:14:46,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 2 states have internal predecessors, (39), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:14:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 219 transitions. [2023-12-23 16:14:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-23 16:14:46,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:14:46,439 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:14:46,455 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 (3)] Forceful destruction successful, exit code 0 [2023-12-23 16:14:46,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:46,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:14:46,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:14:46,653 INFO L85 PathProgramCache]: Analyzing trace with hash -592690876, now seen corresponding path program 1 times [2023-12-23 16:14:46,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:14:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482822961] [2023-12-23 16:14:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:14:46,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:14:46,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 16:14:46,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 16:14:46,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:14:47,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 16:14:47,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:14:48,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 999 proven. 30 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2023-12-23 16:14:48,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:14:48,404 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:14:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482822961] [2023-12-23 16:14:48,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482822961] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:14:48,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [920556844] [2023-12-23 16:14:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:14:48,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 16:14:48,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 16:14:48,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 16:14:48,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-23 16:14:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:14:49,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 16:14:49,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:14:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 999 proven. 30 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2023-12-23 16:14:50,806 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:14:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [920556844] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:14:51,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:14:51,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-23 16:14:51,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231032812] [2023-12-23 16:14:51,085 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:14:51,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-23 16:14:51,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:14:51,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-23 16:14:51,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-23 16:14:51,088 INFO L87 Difference]: Start difference. First operand 141 states and 219 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:14:53,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:14:56,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:14:56,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:14:56,882 INFO L93 Difference]: Finished difference Result 313 states and 477 transitions. [2023-12-23 16:14:56,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 16:14:56,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 206 [2023-12-23 16:14:56,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:14:56,885 INFO L225 Difference]: With dead ends: 313 [2023-12-23 16:14:56,885 INFO L226 Difference]: Without dead ends: 233 [2023-12-23 16:14:56,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2023-12-23 16:14:56,886 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 96 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-23 16:14:56,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 288 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-23 16:14:56,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-23 16:14:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 227. [2023-12-23 16:14:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 119 states have (on average 1.2016806722689075) internal successors, (143), 119 states have internal predecessors, (143), 102 states have call successors, (102), 5 states have call predecessors, (102), 5 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-23 16:14:56,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 347 transitions. [2023-12-23 16:14:56,911 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 347 transitions. Word has length 206 [2023-12-23 16:14:56,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:14:56,912 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 347 transitions. [2023-12-23 16:14:56,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:14:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 347 transitions. [2023-12-23 16:14:56,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-23 16:14:56,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:14:56,914 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:14:56,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-23 16:14:57,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-23 16:14:57,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 16:14:57,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:14:57,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:14:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1137612726, now seen corresponding path program 1 times [2023-12-23 16:14:57,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:14:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389042022] [2023-12-23 16:14:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:14:57,337 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:14:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:14:57,338 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 16:14:57,340 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 16:14:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:14:57,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 16:14:57,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:14:58,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 285 proven. 93 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2023-12-23 16:14:58,407 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:14:58,847 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-23 16:14:58,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:14:58,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389042022] [2023-12-23 16:14:58,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389042022] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 16:14:58,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:14:58,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 16:14:58,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635367652] [2023-12-23 16:14:58,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:14:58,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 16:14:58,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:14:58,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 16:14:58,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 16:14:58,850 INFO L87 Difference]: Start difference. First operand 227 states and 347 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-23 16:15:01,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:15:03,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:15:03,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:15:03,661 INFO L93 Difference]: Finished difference Result 241 states and 358 transitions. [2023-12-23 16:15:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 16:15:03,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 207 [2023-12-23 16:15:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:15:03,701 INFO L225 Difference]: With dead ends: 241 [2023-12-23 16:15:03,701 INFO L226 Difference]: Without dead ends: 161 [2023-12-23 16:15:03,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 406 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2023-12-23 16:15:03,702 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 112 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-23 16:15:03,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 177 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-23 16:15:03,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-12-23 16:15:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157. [2023-12-23 16:15:03,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 82 states have (on average 1.1341463414634145) internal successors, (93), 82 states have internal predecessors, (93), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:15:03,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 229 transitions. [2023-12-23 16:15:03,718 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 229 transitions. Word has length 207 [2023-12-23 16:15:03,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:15:03,719 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 229 transitions. [2023-12-23 16:15:03,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (65), 2 states have call predecessors, (65), 4 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2023-12-23 16:15:03,719 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 229 transitions. [2023-12-23 16:15:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-23 16:15:03,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:15:03,720 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:15:03,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-23 16:15:03,932 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 16:15:03,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:15:03,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:15:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1382347208, now seen corresponding path program 1 times [2023-12-23 16:15:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:15:03,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183290965] [2023-12-23 16:15:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:15:03,934 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:15:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:15:03,935 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 16:15:03,941 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 16:15:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:15:04,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 16:15:04,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:15:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 893 proven. 42 refuted. 0 times theorem prover too weak. 1309 trivial. 0 not checked. [2023-12-23 16:15:05,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:15:05,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:15:05,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183290965] [2023-12-23 16:15:05,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183290965] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:15:05,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [745954393] [2023-12-23 16:15:05,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:15:05,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 16:15:05,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 16:15:05,772 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 16:15:05,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 16:15:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:15:06,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 16:15:06,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:15:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 883 proven. 24 refuted. 0 times theorem prover too weak. 1337 trivial. 0 not checked. [2023-12-23 16:15:07,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:15:07,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [745954393] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:15:07,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:15:07,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2023-12-23 16:15:07,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504407428] [2023-12-23 16:15:07,813 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:15:07,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 16:15:07,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:15:07,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 16:15:07,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-12-23 16:15:07,815 INFO L87 Difference]: Start difference. First operand 157 states and 229 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-12-23 16:15:12,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 16:15:12,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:15:12,473 INFO L93 Difference]: Finished difference Result 270 states and 386 transitions. [2023-12-23 16:15:12,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-23 16:15:12,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 207 [2023-12-23 16:15:12,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:15:12,478 INFO L225 Difference]: With dead ends: 270 [2023-12-23 16:15:12,478 INFO L226 Difference]: Without dead ends: 182 [2023-12-23 16:15:12,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 525 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=207, Unknown=0, NotChecked=0, Total=342 [2023-12-23 16:15:12,479 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 64 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-23 16:15:12,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 429 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-12-23 16:15:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-23 16:15:12,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2023-12-23 16:15:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 92 states have (on average 1.1304347826086956) internal successors, (104), 92 states have internal predecessors, (104), 68 states have call successors, (68), 8 states have call predecessors, (68), 8 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:15:12,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2023-12-23 16:15:12,497 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 207 [2023-12-23 16:15:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:15:12,498 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2023-12-23 16:15:12,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (41), 3 states have call predecessors, (41), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-12-23 16:15:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2023-12-23 16:15:12,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-23 16:15:12,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:15:12,500 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:15:12,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-12-23 16:15:12,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 16:15:12,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 16:15:12,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:15:12,938 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:15:12,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1124181770, now seen corresponding path program 1 times [2023-12-23 16:15:12,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:15:12,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1190046698] [2023-12-23 16:15:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:15:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 16:15:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:15:12,940 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 16:15:12,965 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 (9)] Waiting until timeout for monitored process [2023-12-23 16:15:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:15:13,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-23 16:15:13,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 16:28:42,368 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 16:28:42,369 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 16:28:43,398 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 16:28:43,430 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 0 [2023-12-23 16:28:43,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 16:28:43,545 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 208 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-25-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-4-3-2-3-2-2-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-75-4-3-3-2-4-2-4-3-4-3-3-2-4-4-3-3-4-4-4-3-4-4-4-4-4-4-4-4-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 context. [2023-12-23 16:28:43,548 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-23 16:28:43,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 16:28:43,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:28:43 BoogieIcfgContainer [2023-12-23 16:28:43,554 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 16:28:43,555 INFO L158 Benchmark]: Toolchain (without parser) took 849848.46ms. Allocated memory was 255.9MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 202.9MB in the beginning and 5.2GB in the end (delta: -5.0GB). Peak memory consumption was 7.3GB. Max. memory is 8.0GB. [2023-12-23 16:28:43,556 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 16:28:43,556 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.62ms. Allocated memory is still 255.9MB. Free memory was 202.5MB in the beginning and 186.4MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 16:28:43,556 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.72ms. Allocated memory is still 255.9MB. Free memory was 186.4MB in the beginning and 183.7MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 16:28:43,556 INFO L158 Benchmark]: Boogie Preprocessor took 56.48ms. Allocated memory is still 255.9MB. Free memory was 183.7MB in the beginning and 180.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-23 16:28:43,556 INFO L158 Benchmark]: RCFGBuilder took 4209.12ms. Allocated memory is still 255.9MB. Free memory was 179.8MB in the beginning and 219.8MB in the end (delta: -39.9MB). Peak memory consumption was 30.5MB. Max. memory is 8.0GB. [2023-12-23 16:28:43,557 INFO L158 Benchmark]: TraceAbstraction took 845228.47ms. Allocated memory was 255.9MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 219.2MB in the beginning and 5.2GB in the end (delta: -5.0GB). Peak memory consumption was 7.3GB. Max. memory is 8.0GB. [2023-12-23 16:28:43,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 212.9MB. Free memory is still 162.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 297.62ms. Allocated memory is still 255.9MB. Free memory was 202.5MB in the beginning and 186.4MB in the end (delta: 16.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.72ms. Allocated memory is still 255.9MB. Free memory was 186.4MB in the beginning and 183.7MB in the end (delta: 2.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.48ms. Allocated memory is still 255.9MB. Free memory was 183.7MB in the beginning and 180.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 4209.12ms. Allocated memory is still 255.9MB. Free memory was 179.8MB in the beginning and 219.8MB in the end (delta: -39.9MB). Peak memory consumption was 30.5MB. Max. memory is 8.0GB. * TraceAbstraction took 845228.47ms. Allocated memory was 255.9MB in the beginning and 8.0GB in the end (delta: 7.7GB). Free memory was 219.2MB in the beginning and 5.2GB in the end (delta: -5.0GB). Peak memory consumption was 7.3GB. 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 208 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-25-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-4-3-2-3-2-2-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-75-4-3-3-2-4-2-4-3-4-3-3-2-4-4-3-3-4-4-4-3-4-4-4-4-4-4-4-4-4-3-4-3-2-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 845.2s, OverallIterations: 6, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 18.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 290 mSDsluCounter, 1233 SdHoareTripleChecker+Invalid, 18.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 746 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 760 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 487 mSDtfsCounter, 760 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1932 GetRequests, 1890 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 1445 NumberOfCodeBlocks, 1445 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1644 ConstructedInterpolants, 0 QuantifiedInterpolants, 7403 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2360 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 17640/17952 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