/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-15.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 05:50:35,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 05:50:35,911 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 05:50:35,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 05:50:35,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 05:50:35,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 05:50:35,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 05:50:35,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 05:50:35,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 05:50:35,951 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 05:50:35,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 05:50:35,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 05:50:35,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 05:50:35,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 05:50:35,953 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 05:50:35,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 05:50:35,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 05:50:35,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 05:50:35,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 05:50:35,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 05:50:35,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 05:50:35,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 05:50:35,956 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 05:50:35,956 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 05:50:35,956 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 05:50:35,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 05:50:35,956 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 05:50:35,957 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 05:50:35,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 05:50:35,957 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 05:50:35,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 05:50:35,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 05:50:35,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 05:50:35,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 05:50:35,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:50:35,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 05:50:35,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 05:50:35,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 05:50:35,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 05:50:35,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 05:50:35,961 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 05:50:35,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 05:50:36,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 05:50:36,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 05:50:36,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 05:50:36,234 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 05:50:36,234 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 05:50:36,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-15.i [2023-12-23 05:50:37,502 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 05:50:37,713 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 05:50:37,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-15.i [2023-12-23 05:50:37,721 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fe31553/6c2f57b1e5df40e591a462bdb755ab87/FLAGbdaf8b369 [2023-12-23 05:50:37,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69fe31553/6c2f57b1e5df40e591a462bdb755ab87 [2023-12-23 05:50:37,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 05:50:37,737 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 05:50:37,738 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 05:50:37,738 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 05:50:37,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 05:50:37,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:50:37" (1/1) ... [2023-12-23 05:50:37,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232da66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:37, skipping insertion in model container [2023-12-23 05:50:37,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:50:37" (1/1) ... [2023-12-23 05:50:37,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 05:50:37,911 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-15.i[915,928] [2023-12-23 05:50:38,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:50:38,024 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 05:50:38,033 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-15.i[915,928] [2023-12-23 05:50:38,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:50:38,091 INFO L206 MainTranslator]: Completed translation [2023-12-23 05:50:38,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38 WrapperNode [2023-12-23 05:50:38,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 05:50:38,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 05:50:38,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 05:50:38,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 05:50:38,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,143 INFO L138 Inliner]: procedures = 27, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 251 [2023-12-23 05:50:38,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 05:50:38,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 05:50:38,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 05:50:38,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 05:50:38,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,160 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,182 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 05:50:38,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,206 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,218 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 05:50:38,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 05:50:38,233 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 05:50:38,233 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 05:50:38,234 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (1/1) ... [2023-12-23 05:50:38,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:50:38,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 05:50:38,274 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 05:50:38,312 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 05:50:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 05:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 05:50:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 05:50:38,323 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 05:50:38,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 05:50:38,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 05:50:38,437 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 05:50:38,438 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 05:50:43,812 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 05:50:43,856 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 05:50:43,856 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 05:50:43,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:50:43 BoogieIcfgContainer [2023-12-23 05:50:43,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 05:50:43,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 05:50:43,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 05:50:43,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 05:50:43,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:50:37" (1/3) ... [2023-12-23 05:50:43,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:50:43, skipping insertion in model container [2023-12-23 05:50:43,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:50:38" (2/3) ... [2023-12-23 05:50:43,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382f4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:50:43, skipping insertion in model container [2023-12-23 05:50:43,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:50:43" (3/3) ... [2023-12-23 05:50:43,864 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-15.i [2023-12-23 05:50:43,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 05:50:43,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 05:50:43,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 05:50:43,918 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;@48e6f8ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 05:50:43,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 05:50:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 05:50:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-23 05:50:43,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:50:43,943 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:43,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:50:43,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:50:43,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1338591917, now seen corresponding path program 1 times [2023-12-23 05:50:43,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:50:43,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222899170] [2023-12-23 05:50:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:50:43,968 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 05:50:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:50:43,970 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 05:50:43,971 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 05:50:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:50:44,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 05:50:44,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:50:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1322 proven. 0 refuted. 0 times theorem prover too weak. 2122 trivial. 0 not checked. [2023-12-23 05:50:44,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:50:44,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:50:44,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222899170] [2023-12-23 05:50:44,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222899170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:50:44,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:50:44,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:50:44,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202007267] [2023-12-23 05:50:44,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:50:44,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 05:50:44,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:50:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 05:50:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:50:44,698 INFO L87 Difference]: Start difference. First operand has 108 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 64 states have internal predecessors, (90), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 05:50:45,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:50:45,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:50:45,927 INFO L93 Difference]: Finished difference Result 213 states and 388 transitions. [2023-12-23 05:50:45,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 05:50:45,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 257 [2023-12-23 05:50:45,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:50:45,965 INFO L225 Difference]: With dead ends: 213 [2023-12-23 05:50:45,965 INFO L226 Difference]: Without dead ends: 106 [2023-12-23 05:50:45,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 256 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 05:50:45,971 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:50:45,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-23 05:50:45,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-23 05:50:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-12-23 05:50:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 62 states have (on average 1.3709677419354838) internal successors, (85), 62 states have internal predecessors, (85), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-23 05:50:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2023-12-23 05:50:46,020 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 257 [2023-12-23 05:50:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:50:46,021 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2023-12-23 05:50:46,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-23 05:50:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2023-12-23 05:50:46,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-12-23 05:50:46,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:50:46,027 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:46,050 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 05:50:46,246 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 05:50:46,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:50:46,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:50:46,248 INFO L85 PathProgramCache]: Analyzing trace with hash 604217845, now seen corresponding path program 1 times [2023-12-23 05:50:46,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:50:46,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795075065] [2023-12-23 05:50:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:50:46,250 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 05:50:46,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:50:46,251 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 05:50:46,262 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 05:50:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:50:46,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:50:46,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:50:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 05:50:49,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:50:49,235 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:50:49,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795075065] [2023-12-23 05:50:49,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795075065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:50:49,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:50:49,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:50:49,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81834041] [2023-12-23 05:50:49,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:50:49,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:50:49,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:50:49,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:50:49,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 05:50:49,239 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 05:50:52,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:50:53,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:50:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:50:53,923 INFO L93 Difference]: Finished difference Result 317 states and 506 transitions. [2023-12-23 05:50:53,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 05:50:53,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 257 [2023-12-23 05:50:53,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:50:53,959 INFO L225 Difference]: With dead ends: 317 [2023-12-23 05:50:53,959 INFO L226 Difference]: Without dead ends: 212 [2023-12-23 05:50:53,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:50:53,962 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 103 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:50:53,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 485 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-23 05:50:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-12-23 05:50:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 192. [2023-12-23 05:50:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 105 states have (on average 1.3238095238095238) internal successors, (139), 105 states have internal predecessors, (139), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 05:50:54,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 307 transitions. [2023-12-23 05:50:54,022 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 307 transitions. Word has length 257 [2023-12-23 05:50:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:50:54,026 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 307 transitions. [2023-12-23 05:50:54,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 05:50:54,027 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 307 transitions. [2023-12-23 05:50:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-23 05:50:54,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:50:54,031 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:50:54,056 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 05:50:54,252 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 05:50:54,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:50:54,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:50:54,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1183463874, now seen corresponding path program 1 times [2023-12-23 05:50:54,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:50:54,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368627703] [2023-12-23 05:50:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:50:54,255 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 05:50:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:50:54,257 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 05:50:54,288 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 05:50:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:50:54,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 05:50:54,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:50:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-12-23 05:50:56,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:50:56,956 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:50:56,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368627703] [2023-12-23 05:50:56,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368627703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:50:56,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:50:56,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:50:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040495835] [2023-12-23 05:50:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:50:56,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:50:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:50:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:50:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-23 05:50:56,959 INFO L87 Difference]: Start difference. First operand 192 states and 307 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 05:50:59,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:01,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:04,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:06,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:12,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:19,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:23,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:25,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:51:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:51:25,161 INFO L93 Difference]: Finished difference Result 402 states and 643 transitions. [2023-12-23 05:51:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 05:51:25,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258 [2023-12-23 05:51:25,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:51:25,189 INFO L225 Difference]: With dead ends: 402 [2023-12-23 05:51:25,189 INFO L226 Difference]: Without dead ends: 297 [2023-12-23 05:51:25,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 05:51:25,191 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 129 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 84 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:51:25,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 447 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 27.4s Time] [2023-12-23 05:51:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-23 05:51:25,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 194. [2023-12-23 05:51:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 05:51:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 309 transitions. [2023-12-23 05:51:25,253 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 309 transitions. Word has length 258 [2023-12-23 05:51:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:51:25,255 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 309 transitions. [2023-12-23 05:51:25,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-12-23 05:51:25,257 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 309 transitions. [2023-12-23 05:51:25,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-12-23 05:51:25,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:51:25,262 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:25,287 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 05:51:25,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 05:51:25,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:51:25,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:51:25,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1884528452, now seen corresponding path program 1 times [2023-12-23 05:51:25,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:51:25,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155502086] [2023-12-23 05:51:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:51:25,482 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 05:51:25,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:51:25,484 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 05:51:25,489 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 05:51:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:51:26,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 05:51:26,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:51:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 39 proven. 1568 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2023-12-23 05:51:28,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:51:29,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 39 proven. 84 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2023-12-23 05:51:29,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:51:29,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155502086] [2023-12-23 05:51:29,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155502086] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:51:29,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:51:29,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-23 05:51:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449481003] [2023-12-23 05:51:29,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:51:29,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-23 05:51:29,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:51:29,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-23 05:51:29,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:51:29,276 INFO L87 Difference]: Start difference. First operand 194 states and 309 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 4 states have call successors, (84), 3 states have call predecessors, (84), 5 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2023-12-23 05:51:31,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:34,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:36,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:40,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:40,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:51:40,567 INFO L93 Difference]: Finished difference Result 422 states and 659 transitions. [2023-12-23 05:51:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 05:51:40,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 4 states have call successors, (84), 3 states have call predecessors, (84), 5 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) Word has length 258 [2023-12-23 05:51:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:51:40,589 INFO L225 Difference]: With dead ends: 422 [2023-12-23 05:51:40,589 INFO L226 Difference]: Without dead ends: 315 [2023-12-23 05:51:40,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=198, Invalid=402, Unknown=0, NotChecked=0, Total=600 [2023-12-23 05:51:40,591 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 538 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:51:40,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 401 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2023-12-23 05:51:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-12-23 05:51:40,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 200. [2023-12-23 05:51:40,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 111 states have internal predecessors, (144), 84 states have call successors, (84), 4 states have call predecessors, (84), 4 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 05:51:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 312 transitions. [2023-12-23 05:51:40,631 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 312 transitions. Word has length 258 [2023-12-23 05:51:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:51:40,632 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 312 transitions. [2023-12-23 05:51:40,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 states have internal predecessors, (103), 4 states have call successors, (84), 3 states have call predecessors, (84), 5 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2023-12-23 05:51:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 312 transitions. [2023-12-23 05:51:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-23 05:51:40,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:51:40,635 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:40,657 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 05:51:40,851 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 05:51:40,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:51:40,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:51:40,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1804073357, now seen corresponding path program 1 times [2023-12-23 05:51:40,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:51:40,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926970186] [2023-12-23 05:51:40,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:51:40,853 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 05:51:40,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:51:40,854 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 05:51:40,855 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 05:51:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:51:41,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 05:51:41,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:51:41,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1631 proven. 78 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2023-12-23 05:51:41,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:51:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 45 proven. 78 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2023-12-23 05:51:42,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:51:42,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926970186] [2023-12-23 05:51:42,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926970186] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:51:42,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:51:42,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-23 05:51:42,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686793075] [2023-12-23 05:51:42,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:51:42,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 05:51:42,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:51:42,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 05:51:42,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:51:42,318 INFO L87 Difference]: Start difference. First operand 200 states and 312 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-23 05:51:44,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:51:44,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:51:44,875 INFO L93 Difference]: Finished difference Result 322 states and 490 transitions. [2023-12-23 05:51:44,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 05:51:44,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 259 [2023-12-23 05:51:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:51:44,910 INFO L225 Difference]: With dead ends: 322 [2023-12-23 05:51:44,910 INFO L226 Difference]: Without dead ends: 213 [2023-12-23 05:51:44,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 509 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-23 05:51:44,914 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 130 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:51:44,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 289 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-23 05:51:44,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-23 05:51:44,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 205. [2023-12-23 05:51:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 114 states have (on average 1.236842105263158) internal successors, (141), 114 states have internal predecessors, (141), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 05:51:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 309 transitions. [2023-12-23 05:51:44,959 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 309 transitions. Word has length 259 [2023-12-23 05:51:44,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:51:44,963 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 309 transitions. [2023-12-23 05:51:44,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-23 05:51:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 309 transitions. [2023-12-23 05:51:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-23 05:51:44,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:51:44,965 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:44,988 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 05:51:45,185 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 05:51:45,186 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:51:45,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:51:45,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1674785101, now seen corresponding path program 1 times [2023-12-23 05:51:45,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:51:45,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778635615] [2023-12-23 05:51:45,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:51:45,187 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 05:51:45,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:51:45,189 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 05:51:45,189 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 05:51:45,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:51:45,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 05:51:45,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:51:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1631 proven. 78 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2023-12-23 05:51:46,441 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:51:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 45 proven. 78 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2023-12-23 05:51:46,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:51:46,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778635615] [2023-12-23 05:51:46,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1778635615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:51:46,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:51:46,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-12-23 05:51:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706907111] [2023-12-23 05:51:46,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:51:46,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-23 05:51:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:51:46,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-23 05:51:46,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:51:46,944 INFO L87 Difference]: Start difference. First operand 205 states and 309 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-23 05:51:49,615 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 05:51:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:51:49,719 INFO L93 Difference]: Finished difference Result 323 states and 481 transitions. [2023-12-23 05:51:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-23 05:51:49,755 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 259 [2023-12-23 05:51:49,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:51:49,757 INFO L225 Difference]: With dead ends: 323 [2023-12-23 05:51:49,757 INFO L226 Difference]: Without dead ends: 213 [2023-12-23 05:51:49,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 509 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-23 05:51:49,759 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 174 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:51:49,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 290 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-23 05:51:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-23 05:51:49,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 205. [2023-12-23 05:51:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 114 states have internal predecessors, (140), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-23 05:51:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 308 transitions. [2023-12-23 05:51:49,796 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 308 transitions. Word has length 259 [2023-12-23 05:51:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:51:49,797 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 308 transitions. [2023-12-23 05:51:49,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 2 states have call successors, (68), 2 states have call predecessors, (68), 4 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-23 05:51:49,797 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 308 transitions. [2023-12-23 05:51:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-23 05:51:49,799 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:51:49,799 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:51:49,823 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 05:51:50,012 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 [2023-12-23 05:51:50,013 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:51:50,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:51:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1732043403, now seen corresponding path program 1 times [2023-12-23 05:51:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:51:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732461933] [2023-12-23 05:51:50,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:51:50,014 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 05:51:50,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:51:50,015 INFO L229 MonitoredProcess]: Starting monitored process 8 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 05:51:50,015 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 (8)] Waiting until timeout for monitored process [2023-12-23 05:51:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:51:50,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-23 05:51:50,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:52:40,813 WARN L293 SmtUtils]: Spent 15.80s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 05:54:06,366 WARN L293 SmtUtils]: Spent 12.95s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 05:54:53,245 WARN L293 SmtUtils]: Spent 12.97s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 05:56:08,254 WARN L293 SmtUtils]: Spent 20.17s on a formula simplification that was a NOOP. DAG size: 61 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-23 05:57:43,276 WARN L293 SmtUtils]: Spent 24.02s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)