/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-100_file-94.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 10:51:51,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 10:51:51,225 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 10:51:51,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 10:51:51,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 10:51:51,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 10:51:51,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 10:51:51,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 10:51:51,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 10:51:51,261 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 10:51:51,261 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 10:51:51,261 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 10:51:51,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 10:51:51,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 10:51:51,262 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 10:51:51,262 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 10:51:51,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 10:51:51,263 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 10:51:51,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 10:51:51,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 10:51:51,263 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 10:51:51,264 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 10:51:51,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 10:51:51,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:51:51,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 10:51:51,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 10:51:51,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 10:51:51,267 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 10:51:51,267 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 10:51:51,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 10:51:51,267 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 10:51:51,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 10:51:51,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 10:51:51,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 10:51:51,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 10:51:51,440 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 10:51:51,441 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 10:51:51,442 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-94.i [2023-12-16 10:51:52,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 10:51:52,794 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 10:51:52,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-100_file-94.i [2023-12-16 10:51:52,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6030f208a/36cd4aa066894397ab3301960af15e06/FLAG5ce434d02 [2023-12-16 10:51:52,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6030f208a/36cd4aa066894397ab3301960af15e06 [2023-12-16 10:51:52,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 10:51:52,817 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 10:51:52,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 10:51:52,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 10:51:52,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 10:51:52,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:51:52" (1/1) ... [2023-12-16 10:51:52,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a183e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:52, skipping insertion in model container [2023-12-16 10:51:52,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 10:51:52" (1/1) ... [2023-12-16 10:51:52,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 10:51:52,977 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-100_file-94.i[916,929] [2023-12-16 10:51:53,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:51:53,084 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 10:51:53,093 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-100_file-94.i[916,929] [2023-12-16 10:51:53,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 10:51:53,170 INFO L206 MainTranslator]: Completed translation [2023-12-16 10:51:53,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53 WrapperNode [2023-12-16 10:51:53,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 10:51:53,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 10:51:53,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 10:51:53,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 10:51:53,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,197 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,229 INFO L138 Inliner]: procedures = 27, calls = 82, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 347 [2023-12-16 10:51:53,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 10:51:53,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 10:51:53,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 10:51:53,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 10:51:53,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,274 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]. [2023-12-16 10:51:53,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,284 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 10:51:53,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 10:51:53,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 10:51:53,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 10:51:53,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (1/1) ... [2023-12-16 10:51:53,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 10:51:53,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 10:51:53,337 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) [2023-12-16 10:51:53,384 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 [2023-12-16 10:51:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 10:51:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 10:51:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 10:51:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 10:51:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 10:51:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 10:51:53,511 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 10:51:53,512 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 10:52:14,981 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 10:52:15,026 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 10:52:15,026 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 10:52:15,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:52:15 BoogieIcfgContainer [2023-12-16 10:52:15,027 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 10:52:15,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 10:52:15,029 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 10:52:15,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 10:52:15,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 10:51:52" (1/3) ... [2023-12-16 10:52:15,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497da76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:52:15, skipping insertion in model container [2023-12-16 10:52:15,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 10:51:53" (2/3) ... [2023-12-16 10:52:15,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497da76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 10:52:15, skipping insertion in model container [2023-12-16 10:52:15,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 10:52:15" (3/3) ... [2023-12-16 10:52:15,033 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-100_file-94.i [2023-12-16 10:52:15,044 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 10:52:15,045 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 10:52:15,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 10:52:15,093 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;@6c0d3b25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 10:52:15,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 10:52:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 10:52:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-12-16 10:52:15,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:52:15,115 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:52:15,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:52:15,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:52:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1799864931, now seen corresponding path program 1 times [2023-12-16 10:52:15,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:52:15,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587950526] [2023-12-16 10:52:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:52:15,133 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 [2023-12-16 10:52:15,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:52:15,135 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) [2023-12-16 10:52:15,155 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 [2023-12-16 10:52:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:52:15,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 10:52:15,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:52:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 2824 proven. 0 refuted. 0 times theorem prover too weak. 6560 trivial. 0 not checked. [2023-12-16 10:52:15,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:52:15,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:52:15,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587950526] [2023-12-16 10:52:15,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587950526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:52:15,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:52:15,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 10:52:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932618374] [2023-12-16 10:52:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:52:15,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 10:52:15,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:52:15,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 10:52:15,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:52:15,944 INFO L87 Difference]: Start difference. First operand has 150 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 79 states have internal predecessors, (110), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 10:52:20,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:52:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:52:20,155 INFO L93 Difference]: Finished difference Result 297 states and 563 transitions. [2023-12-16 10:52:20,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 10:52:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 406 [2023-12-16 10:52:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:52:20,207 INFO L225 Difference]: With dead ends: 297 [2023-12-16 10:52:20,207 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 10:52:20,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 10:52:20,212 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 10:52:20,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 10:52:20,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 10:52:20,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-12-16 10:52:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 77 states have (on average 1.3636363636363635) internal successors, (105), 77 states have internal predecessors, (105), 69 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-16 10:52:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 243 transitions. [2023-12-16 10:52:20,293 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 243 transitions. Word has length 406 [2023-12-16 10:52:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:52:20,294 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 243 transitions. [2023-12-16 10:52:20,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-16 10:52:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 243 transitions. [2023-12-16 10:52:20,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-12-16 10:52:20,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:52:20,300 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:52:20,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 10:52:20,515 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 [2023-12-16 10:52:20,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:52:20,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:52:20,516 INFO L85 PathProgramCache]: Analyzing trace with hash -985964213, now seen corresponding path program 1 times [2023-12-16 10:52:20,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:52:20,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021495123] [2023-12-16 10:52:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:52:20,518 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 [2023-12-16 10:52:20,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:52:20,519 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) [2023-12-16 10:52:20,523 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 [2023-12-16 10:52:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:52:21,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 10:52:21,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:52:24,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 10:52:24,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:52:24,571 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:52:24,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021495123] [2023-12-16 10:52:24,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021495123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:52:24,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:52:24,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 10:52:24,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477726273] [2023-12-16 10:52:24,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:52:24,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 10:52:24,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:52:24,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 10:52:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:52:24,578 INFO L87 Difference]: Start difference. First operand 148 states and 243 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 10:52:28,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:52:28,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:52:28,979 INFO L93 Difference]: Finished difference Result 442 states and 727 transitions. [2023-12-16 10:52:28,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 10:52:28,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 406 [2023-12-16 10:52:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:52:28,993 INFO L225 Difference]: With dead ends: 442 [2023-12-16 10:52:28,993 INFO L226 Difference]: Without dead ends: 295 [2023-12-16 10:52:28,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 10:52:28,995 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 50 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-16 10:52:28,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 472 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-16 10:52:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-12-16 10:52:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 292. [2023-12-16 10:52:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 151 states have internal predecessors, (205), 138 states have call successors, (138), 2 states have call predecessors, (138), 2 states have return successors, (138), 138 states have call predecessors, (138), 138 states have call successors, (138) [2023-12-16 10:52:29,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 481 transitions. [2023-12-16 10:52:29,097 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 481 transitions. Word has length 406 [2023-12-16 10:52:29,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:52:29,101 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 481 transitions. [2023-12-16 10:52:29,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 10:52:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 481 transitions. [2023-12-16 10:52:29,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-12-16 10:52:29,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:52:29,106 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:52:29,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 10:52:29,322 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 [2023-12-16 10:52:29,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:52:29,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:52:29,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1572770227, now seen corresponding path program 1 times [2023-12-16 10:52:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:52:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064968194] [2023-12-16 10:52:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:52:29,327 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 [2023-12-16 10:52:29,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:52:29,329 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) [2023-12-16 10:52:29,348 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 [2023-12-16 10:52:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:52:29,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 10:52:29,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:52:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2023-12-16 10:52:33,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 10:52:33,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:52:33,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064968194] [2023-12-16 10:52:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064968194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 10:52:33,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 10:52:33,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 10:52:33,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090106223] [2023-12-16 10:52:33,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 10:52:33,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 10:52:33,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:52:33,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 10:52:33,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 10:52:33,316 INFO L87 Difference]: Start difference. First operand 292 states and 481 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 10:52:35,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:52:39,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:52:39,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:52:39,843 INFO L93 Difference]: Finished difference Result 884 states and 1452 transitions. [2023-12-16 10:52:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 10:52:39,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) Word has length 406 [2023-12-16 10:52:39,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:52:39,903 INFO L225 Difference]: With dead ends: 884 [2023-12-16 10:52:39,903 INFO L226 Difference]: Without dead ends: 593 [2023-12-16 10:52:39,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 10:52:39,905 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 170 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-16 10:52:39,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 956 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-16 10:52:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2023-12-16 10:52:40,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 581. [2023-12-16 10:52:40,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 300 states have (on average 1.3533333333333333) internal successors, (406), 300 states have internal predecessors, (406), 276 states have call successors, (276), 4 states have call predecessors, (276), 4 states have return successors, (276), 276 states have call predecessors, (276), 276 states have call successors, (276) [2023-12-16 10:52:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 958 transitions. [2023-12-16 10:52:40,016 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 958 transitions. Word has length 406 [2023-12-16 10:52:40,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:52:40,021 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 958 transitions. [2023-12-16 10:52:40,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (69), 1 states have call predecessors, (69), 1 states have return successors, (69), 1 states have call predecessors, (69), 1 states have call successors, (69) [2023-12-16 10:52:40,022 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 958 transitions. [2023-12-16 10:52:40,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-12-16 10:52:40,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:52:40,026 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:52:40,045 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 [2023-12-16 10:52:40,245 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 [2023-12-16 10:52:40,245 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:52:40,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:52:40,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1633993131, now seen corresponding path program 1 times [2023-12-16 10:52:40,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:52:40,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351451835] [2023-12-16 10:52:40,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:52:40,247 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 [2023-12-16 10:52:40,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:52:40,248 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) [2023-12-16 10:52:40,306 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 [2023-12-16 10:52:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:52:40,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 10:52:40,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 10:52:43,754 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 854 proven. 195 refuted. 0 times theorem prover too weak. 8335 trivial. 0 not checked. [2023-12-16 10:52:43,754 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 10:52:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 9 proven. 195 refuted. 0 times theorem prover too weak. 9180 trivial. 0 not checked. [2023-12-16 10:52:44,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 10:52:44,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351451835] [2023-12-16 10:52:44,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351451835] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 10:52:44,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 10:52:44,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-12-16 10:52:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096864977] [2023-12-16 10:52:44,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 10:52:44,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 10:52:44,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 10:52:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 10:52:44,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 10:52:44,996 INFO L87 Difference]: Start difference. First operand 581 states and 958 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-12-16 10:52:51,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-16 10:52:53,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 10:52:53,715 INFO L93 Difference]: Finished difference Result 2381 states and 3869 transitions. [2023-12-16 10:52:53,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-16 10:52:53,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) Word has length 407 [2023-12-16 10:52:53,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 10:52:53,726 INFO L225 Difference]: With dead ends: 2381 [2023-12-16 10:52:53,726 INFO L226 Difference]: Without dead ends: 1801 [2023-12-16 10:52:53,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 806 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=183, Invalid=417, Unknown=0, NotChecked=0, Total=600 [2023-12-16 10:52:53,733 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 306 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-16 10:52:53,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 767 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-12-16 10:52:53,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-16 10:52:53,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 908. [2023-12-16 10:52:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 481 states have (on average 1.32016632016632) internal successors, (635), 481 states have internal predecessors, (635), 414 states have call successors, (414), 12 states have call predecessors, (414), 12 states have return successors, (414), 414 states have call predecessors, (414), 414 states have call successors, (414) [2023-12-16 10:52:53,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1463 transitions. [2023-12-16 10:52:53,883 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1463 transitions. Word has length 407 [2023-12-16 10:52:53,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 10:52:53,884 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1463 transitions. [2023-12-16 10:52:53,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 2 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (135), 2 states have call predecessors, (135), 2 states have call successors, (135) [2023-12-16 10:52:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1463 transitions. [2023-12-16 10:52:53,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-12-16 10:52:53,887 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 10:52:53,888 INFO L195 NwaCegarLoop]: trace histogram [69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 10:52:53,934 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 [2023-12-16 10:52:54,101 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 [2023-12-16 10:52:54,102 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 10:52:54,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 10:52:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash -2027020141, now seen corresponding path program 1 times [2023-12-16 10:52:54,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 10:52:54,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260556133] [2023-12-16 10:52:54,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 10:52:54,103 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 [2023-12-16 10:52:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 10:52:54,106 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) [2023-12-16 10:52:54,124 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 [2023-12-16 10:52:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 10:52:55,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-16 10:52:55,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 10:53:07,990 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 10:53:07,993 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:53:08,006 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 [2023-12-16 10:53:08,016 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 10:53:08,200 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 [2023-12-16 10:53:08,200 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 408 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-10-2-2-1 context. [2023-12-16 10:53:08,217 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 10:53:08,219 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 10:53:08,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 10:53:08 BoogieIcfgContainer [2023-12-16 10:53:08,221 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 10:53:08,222 INFO L158 Benchmark]: Toolchain (without parser) took 75405.36ms. Allocated memory is still 288.4MB. Free memory was 228.6MB in the beginning and 159.6MB in the end (delta: 69.0MB). Peak memory consumption was 69.6MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,222 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 10:53:08,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.25ms. Allocated memory is still 288.4MB. Free memory was 228.3MB in the beginning and 208.6MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.72ms. Allocated memory is still 288.4MB. Free memory was 208.6MB in the beginning and 204.9MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,224 INFO L158 Benchmark]: Boogie Preprocessor took 71.44ms. Allocated memory is still 288.4MB. Free memory was 204.9MB in the beginning and 200.0MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,224 INFO L158 Benchmark]: RCFGBuilder took 21725.17ms. Allocated memory is still 288.4MB. Free memory was 200.0MB in the beginning and 218.3MB in the end (delta: -18.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,225 INFO L158 Benchmark]: TraceAbstraction took 53193.07ms. Allocated memory is still 288.4MB. Free memory was 217.8MB in the beginning and 159.6MB in the end (delta: 58.2MB). Peak memory consumption was 58.5MB. Max. memory is 8.0GB. [2023-12-16 10:53:08,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 353.25ms. Allocated memory is still 288.4MB. Free memory was 228.3MB in the beginning and 208.6MB in the end (delta: 19.7MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.72ms. Allocated memory is still 288.4MB. Free memory was 208.6MB in the beginning and 204.9MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 71.44ms. Allocated memory is still 288.4MB. Free memory was 204.9MB in the beginning and 200.0MB in the end (delta: 4.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 21725.17ms. Allocated memory is still 288.4MB. Free memory was 200.0MB in the beginning and 218.3MB in the end (delta: -18.3MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * TraceAbstraction took 53193.07ms. Allocated memory is still 288.4MB. Free memory was 217.8MB in the beginning and 159.6MB in the end (delta: 58.2MB). Peak memory consumption was 58.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 408 with TraceHistMax 69,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-10-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 150 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.1s, OverallIterations: 5, TraceHistogramMax: 69, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 531 SdHoareTripleChecker+Valid, 22.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 526 mSDsluCounter, 2435 SdHoareTripleChecker+Invalid, 22.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1549 mSDsCounter, 474 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 714 IncrementalHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 474 mSolverCounterUnsat, 886 mSDtfsCounter, 714 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2048 GetRequests, 2017 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=908occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 908 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 1625 NumberOfCodeBlocks, 1625 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 2027 ConstructedInterpolants, 0 QuantifiedInterpolants, 5918 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2568 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 46530/46920 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown