/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 00:21:46,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 00:21:46,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 00:21:46,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 00:21:46,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 00:21:46,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 00:21:46,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 00:21:46,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 00:21:46,867 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 00:21:46,868 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 00:21:46,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 00:21:46,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 00:21:46,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 00:21:46,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 00:21:46,870 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 00:21:46,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 00:21:46,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 00:21:46,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 00:21:46,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 00:21:46,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 00:21:46,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 00:21:46,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 00:21:46,874 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 00:21:46,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 00:21:46,874 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 00:21:46,875 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 00:21:46,875 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 00:21:46,875 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 00:21:46,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 00:21:46,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 00:21:46,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 00:21:46,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 00:21:46,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 00:21:46,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 00:21:46,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 00:21:46,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 00:21:46,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 00:21:46,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 00:21:46,877 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 00:21:46,877 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 00:21:46,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 00:21:46,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 00:21:46,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 00:21:46,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 00:21:46,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF [2024-11-06 00:21:47,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 00:21:47,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 00:21:47,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 00:21:47,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 00:21:47,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 00:21:47,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c [2024-11-06 00:21:48,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 00:21:48,818 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 00:21:48,818 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c [2024-11-06 00:21:48,823 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a028358/49b60e3428e3457d8b303829671e9b5a/FLAGecd9e2016 [2024-11-06 00:21:48,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a028358/49b60e3428e3457d8b303829671e9b5a [2024-11-06 00:21:48,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 00:21:48,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 00:21:48,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 00:21:48,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 00:21:48,851 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 00:21:48,852 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:21:48" (1/1) ... [2024-11-06 00:21:48,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bca978b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:48, skipping insertion in model container [2024-11-06 00:21:48,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 12:21:48" (1/1) ... [2024-11-06 00:21:48,880 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 00:21:49,105 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2024-11-06 00:21:49,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 00:21:49,127 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 00:21:49,154 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+nlh-reducer.c[1463,1476] [2024-11-06 00:21:49,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 00:21:49,173 INFO L204 MainTranslator]: Completed translation [2024-11-06 00:21:49,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49 WrapperNode [2024-11-06 00:21:49,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 00:21:49,175 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 00:21:49,175 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 00:21:49,175 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 00:21:49,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,204 INFO L138 Inliner]: procedures = 19, calls = 78, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 202 [2024-11-06 00:21:49,205 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 00:21:49,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 00:21:49,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 00:21:49,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 00:21:49,217 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,243 INFO L175 MemorySlicer]: Split 33 memory accesses to 5 slices as follows [2, 6, 8, 6, 11]. 33 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 5, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0, 0]. [2024-11-06 00:21:49,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 00:21:49,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 00:21:49,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 00:21:49,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 00:21:49,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (1/1) ... [2024-11-06 00:21:49,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 00:21:49,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 00:21:49,367 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) [2024-11-06 00:21:49,370 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 [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-06 00:21:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-06 00:21:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-06 00:21:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 00:21:49,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 00:21:49,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-06 00:21:49,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 00:21:49,481 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 00:21:54,196 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-06 00:21:54,197 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 00:21:54,209 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 00:21:54,210 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 00:21:54,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:21:54 BoogieIcfgContainer [2024-11-06 00:21:54,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 00:21:54,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 00:21:54,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 00:21:54,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 00:21:54,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 12:21:48" (1/3) ... [2024-11-06 00:21:54,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:21:54, skipping insertion in model container [2024-11-06 00:21:54,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 12:21:49" (2/3) ... [2024-11-06 00:21:54,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7eca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 12:21:54, skipping insertion in model container [2024-11-06 00:21:54,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 12:21:54" (3/3) ... [2024-11-06 00:21:54,220 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+nlh-reducer.c [2024-11-06 00:21:54,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 00:21:54,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 00:21:54,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 00:21:54,296 INFO L333 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, 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;@634da2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 00:21:54,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 00:21:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:21:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 00:21:54,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 00:21:54,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 00:21:54,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 00:21:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 00:21:54,310 INFO L85 PathProgramCache]: Analyzing trace with hash 775758574, now seen corresponding path program 1 times [2024-11-06 00:21:54,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 00:21:54,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [927037203] [2024-11-06 00:21:54,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 00:21:54,322 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 [2024-11-06 00:21:54,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 00:21:54,325 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) [2024-11-06 00:21:54,326 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 [2024-11-06 00:21:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 00:21:54,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 00:21:54,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 00:21:54,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 00:21:54,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 00:21:54,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 00:21:54,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [927037203] [2024-11-06 00:21:54,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [927037203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 00:21:54,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 00:21:54,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 00:21:54,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046611619] [2024-11-06 00:21:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 00:21:54,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 00:21:54,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 00:21:54,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 00:21:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 00:21:54,874 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 24 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:21:59,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 00:21:59,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 00:21:59,226 INFO L93 Difference]: Finished difference Result 32 states and 45 transitions. [2024-11-06 00:21:59,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 00:21:59,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-06 00:21:59,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 00:21:59,235 INFO L225 Difference]: With dead ends: 32 [2024-11-06 00:21:59,235 INFO L226 Difference]: Without dead ends: 22 [2024-11-06 00:21:59,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 00:21:59,241 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-06 00:21:59,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-06 00:21:59,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-06 00:21:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-06 00:21:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:21:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-11-06 00:21:59,268 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2024-11-06 00:21:59,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 00:21:59,268 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-06 00:21:59,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:21:59,269 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-06 00:21:59,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-06 00:21:59,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 00:21:59,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 00:21:59,282 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 [2024-11-06 00:21:59,474 WARN L453 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 [2024-11-06 00:21:59,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 00:21:59,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 00:21:59,477 INFO L85 PathProgramCache]: Analyzing trace with hash 792769235, now seen corresponding path program 1 times [2024-11-06 00:21:59,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 00:21:59,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838471585] [2024-11-06 00:21:59,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 00:21:59,478 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 [2024-11-06 00:21:59,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 00:21:59,482 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) [2024-11-06 00:21:59,484 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 [2024-11-06 00:21:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 00:21:59,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-06 00:21:59,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 00:22:03,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 105 [2024-11-06 00:22:03,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 84 [2024-11-06 00:22:03,936 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-06 00:22:03,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 92 [2024-11-06 00:22:03,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 60 [2024-11-06 00:22:11,464 WARN L286 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 00:22:32,123 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((v_arrayElimCell_3 (_ BitVec 32))) (= (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv300 32)))) (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_main_~main__t~0#1_18| (_ FloatingPoint 8 24)) (v_arrayElimCell_5 (_ BitVec 32)) (v_arrayElimCell_4 (_ BitVec 32)) (v_arrayElimCell_2 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) v_arrayElimCell_2) ((_ extract 30 23) v_arrayElimCell_2) ((_ extract 22 0) v_arrayElimCell_2))) (.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4))) (.cse3 (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1))) (.cse1 (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv10 32)) .cse0) (= |c_ULTIMATE.start_main_~main__z~0#1| (fp.add c_currentRoundingMode .cse1 (fp.div c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 (fp.sub c_currentRoundingMode |v_ULTIMATE.start_main_~main__t~0#1_18| .cse3)) (fp.sub c_currentRoundingMode .cse0 .cse3)))) (= ((_ to_fp 8 24) c_currentRoundingMode (_ bv4 32)) .cse2) (= .cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv5 32))) (fp.leq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse0) (fp.geq |v_ULTIMATE.start_main_~main__t~0#1_18| .cse3) (= .cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv1 32)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-06 00:22:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 00:22:34,256 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 00:22:34,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-06 00:22:34,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838471585] [2024-11-06 00:22:34,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838471585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 00:22:34,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 00:22:34,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-06 00:22:34,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531918315] [2024-11-06 00:22:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 00:22:34,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 00:22:34,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-06 00:22:34,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 00:22:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=47, Unknown=1, NotChecked=14, Total=90 [2024-11-06 00:22:34,259 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:22:35,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-06 00:22:37,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 00:22:37,214 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-11-06 00:22:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 00:22:37,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-06 00:22:37,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 00:22:37,217 INFO L225 Difference]: With dead ends: 35 [2024-11-06 00:22:37,217 INFO L226 Difference]: Without dead ends: 30 [2024-11-06 00:22:37,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=28, Invalid=47, Unknown=1, NotChecked=14, Total=90 [2024-11-06 00:22:37,219 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-06 00:22:37,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 51 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 37 Unchecked, 2.9s Time] [2024-11-06 00:22:37,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-06 00:22:37,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2024-11-06 00:22:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:22:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-06 00:22:37,223 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 13 [2024-11-06 00:22:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 00:22:37,224 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-06 00:22:37,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 00:22:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-06 00:22:37,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-06 00:22:37,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 00:22:37,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 00:22:37,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-06 00:22:37,428 WARN L453 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 [2024-11-06 00:22:37,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 00:22:37,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 00:22:37,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1710804433, now seen corresponding path program 1 times [2024-11-06 00:22:37,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-06 00:22:37,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706379753] [2024-11-06 00:22:37,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 00:22:37,431 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 [2024-11-06 00:22:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 00:22:37,434 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) [2024-11-06 00:22:37,435 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 [2024-11-06 00:22:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 00:22:38,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-06 00:22:38,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 00:22:43,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 105 [2024-11-06 00:22:43,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 84 [2024-11-06 00:22:43,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-06 00:22:43,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 92 [2024-11-06 00:22:43,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 60