/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver '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' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-48.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-df9f019-m [2024-11-05 19:15:22,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 19:15:22,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-05 19:15:22,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 19:15:22,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 19:15:22,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 19:15:22,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 19:15:22,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 19:15:22,260 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 19:15:22,263 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 19:15:22,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 19:15:22,264 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 19:15:22,264 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 19:15:22,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 19:15:22,265 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 19:15:22,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 19:15:22,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 19:15:22,266 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 19:15:22,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 19:15:22,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 19:15:22,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 19:15:22,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 19:15:22,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 19:15:22,267 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 19:15:22,267 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 19:15:22,267 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 19:15:22,268 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 19:15:22,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 19:15:22,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 19:15:22,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 19:15:22,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 19:15:22,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 19:15:22,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 19:15:22,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:15:22,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 19:15:22,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 19:15:22,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 19:15:22,271 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 19:15:22,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 19:15:22,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 19:15:22,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 19:15:22,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 19:15:22,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 19:15:22,491 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 19:15:22,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 19:15:22,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-05 19:15:23,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 19:15:23,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 19:15:23,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-05 19:15:23,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6e85902/ba3ef0b420cd4c0bbc41c38ee97e3dc8/FLAG552f0204e [2024-11-05 19:15:23,983 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae6e85902/ba3ef0b420cd4c0bbc41c38ee97e3dc8 [2024-11-05 19:15:23,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 19:15:23,986 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 19:15:23,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 19:15:23,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 19:15:23,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 19:15:23,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:15:23" (1/1) ... [2024-11-05 19:15:23,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8fa850f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:23, skipping insertion in model container [2024-11-05 19:15:23,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:15:23" (1/1) ... [2024-11-05 19:15:24,020 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 19:15:24,149 WARN L250 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_floatingpointinfluence_no-floats_file-48.i[916,929] [2024-11-05 19:15:24,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:15:24,196 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 19:15:24,206 WARN L250 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_floatingpointinfluence_no-floats_file-48.i[916,929] [2024-11-05 19:15:24,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 19:15:24,241 INFO L204 MainTranslator]: Completed translation [2024-11-05 19:15:24,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24 WrapperNode [2024-11-05 19:15:24,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 19:15:24,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 19:15:24,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 19:15:24,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 19:15:24,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,274 INFO L138 Inliner]: procedures = 27, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 136 [2024-11-05 19:15:24,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 19:15:24,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 19:15:24,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 19:15:24,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 19:15:24,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,305 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]. [2024-11-05 19:15:24,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 19:15:24,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 19:15:24,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 19:15:24,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 19:15:24,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (1/1) ... [2024-11-05 19:15:24,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 19:15:24,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 19:15:24,365 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) [2024-11-05 19:15:24,368 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 [2024-11-05 19:15:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 19:15:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 19:15:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 19:15:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 19:15:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 19:15:24,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 19:15:24,459 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 19:15:24,461 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 19:15:26,735 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-05 19:15:26,735 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 19:15:26,745 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 19:15:26,746 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 19:15:26,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:15:26 BoogieIcfgContainer [2024-11-05 19:15:26,746 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 19:15:26,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 19:15:26,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 19:15:26,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 19:15:26,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:15:23" (1/3) ... [2024-11-05 19:15:26,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774045d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:15:26, skipping insertion in model container [2024-11-05 19:15:26,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:15:24" (2/3) ... [2024-11-05 19:15:26,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774045d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:15:26, skipping insertion in model container [2024-11-05 19:15:26,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:15:26" (3/3) ... [2024-11-05 19:15:26,752 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-48.i [2024-11-05 19:15:26,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 19:15:26,767 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 19:15:26,819 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 19:15:26,825 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;@587855a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 19:15:26,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 19:15:26,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-05 19:15:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-05 19:15:26,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:15:26,839 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:15:26,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:15:26,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:15:26,843 INFO L85 PathProgramCache]: Analyzing trace with hash -403830734, now seen corresponding path program 1 times [2024-11-05 19:15:26,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:15:26,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133613339] [2024-11-05 19:15:26,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:15:26,852 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 [2024-11-05 19:15:26,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:15:26,854 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) [2024-11-05 19:15:26,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 19:15:26,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:15:26,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-05 19:15:26,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:15:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-05 19:15:27,186 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:15:27,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-05 19:15:27,484 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:15:27,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133613339] [2024-11-05 19:15:27,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2133613339] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 19:15:27,484 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 19:15:27,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2024-11-05 19:15:27,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178265278] [2024-11-05 19:15:27,488 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 19:15:27,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-05 19:15:27,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:15:27,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-05 19:15:27,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-05 19:15:27,519 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 36 states have internal predecessors, (45), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-05 19:15:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:15:28,320 INFO L93 Difference]: Finished difference Result 257 states and 474 transitions. [2024-11-05 19:15:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-05 19:15:28,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 156 [2024-11-05 19:15:28,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:15:28,334 INFO L225 Difference]: With dead ends: 257 [2024-11-05 19:15:28,334 INFO L226 Difference]: Without dead ends: 196 [2024-11-05 19:15:28,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 304 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=206, Invalid=496, Unknown=0, NotChecked=0, Total=702 [2024-11-05 19:15:28,340 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 263 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-05 19:15:28,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 212 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-05 19:15:28,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-05 19:15:28,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 65. [2024-11-05 19:15:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-05 19:15:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2024-11-05 19:15:28,383 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 156 [2024-11-05 19:15:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:15:28,384 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2024-11-05 19:15:28,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 1 states have call successors, (26), 1 states have call predecessors, (26), 3 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-05 19:15:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2024-11-05 19:15:28,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-05 19:15:28,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:15:28,387 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:15:28,397 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 [2024-11-05 19:15:28,592 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 [2024-11-05 19:15:28,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:15:28,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:15:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash -346572432, now seen corresponding path program 1 times [2024-11-05 19:15:28,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:15:28,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223529814] [2024-11-05 19:15:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:15:28,595 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 [2024-11-05 19:15:28,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:15:28,600 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) [2024-11-05 19:15:28,601 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 [2024-11-05 19:15:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:15:28,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-05 19:15:28,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:15:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 863 proven. 39 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2024-11-05 19:15:31,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:15:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-05 19:15:34,122 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:15:34,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223529814] [2024-11-05 19:15:34,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1223529814] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:15:34,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:15:34,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 27 [2024-11-05 19:15:34,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860320707] [2024-11-05 19:15:34,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:15:34,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-05 19:15:34,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:15:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-05 19:15:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702 [2024-11-05 19:15:34,125 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-05 19:15:37,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-05 19:15:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:15:40,170 INFO L93 Difference]: Finished difference Result 169 states and 240 transitions. [2024-11-05 19:15:40,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-05 19:15:40,176 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 156 [2024-11-05 19:15:40,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:15:40,178 INFO L225 Difference]: With dead ends: 169 [2024-11-05 19:15:40,178 INFO L226 Difference]: Without dead ends: 107 [2024-11-05 19:15:40,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2024-11-05 19:15:40,185 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 157 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-05 19:15:40,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 379 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-05 19:15:40,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-05 19:15:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 85. [2024-11-05 19:15:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 34 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-05 19:15:40,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 119 transitions. [2024-11-05 19:15:40,215 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 119 transitions. Word has length 156 [2024-11-05 19:15:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:15:40,215 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 119 transitions. [2024-11-05 19:15:40,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (26), 1 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-05 19:15:40,216 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 119 transitions. [2024-11-05 19:15:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-05 19:15:40,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 19:15:40,217 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 19:15:40,222 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 [2024-11-05 19:15:40,418 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 [2024-11-05 19:15:40,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 19:15:40,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 19:15:40,419 INFO L85 PathProgramCache]: Analyzing trace with hash 132435888, now seen corresponding path program 1 times [2024-11-05 19:15:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 19:15:40,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950591176] [2024-11-05 19:15:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 19:15:40,419 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 [2024-11-05 19:15:40,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 19:15:40,423 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) [2024-11-05 19:15:40,424 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 [2024-11-05 19:15:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 19:15:40,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-05 19:15:40,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 19:15:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 851 proven. 48 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2024-11-05 19:15:40,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 19:15:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-05 19:15:40,969 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 19:15:40,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1950591176] [2024-11-05 19:15:40,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1950591176] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-05 19:15:40,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-05 19:15:40,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-05 19:15:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731678822] [2024-11-05 19:15:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 19:15:40,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-05 19:15:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 19:15:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-05 19:15:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-05 19:15:40,973 INFO L87 Difference]: Start difference. First operand 85 states and 119 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-05 19:15:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 19:15:41,065 INFO L93 Difference]: Finished difference Result 147 states and 207 transitions. [2024-11-05 19:15:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-05 19:15:41,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 157 [2024-11-05 19:15:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 19:15:41,072 INFO L225 Difference]: With dead ends: 147 [2024-11-05 19:15:41,072 INFO L226 Difference]: Without dead ends: 0 [2024-11-05 19:15:41,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-05 19:15:41,074 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 19:15:41,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 19:15:41,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-05 19:15:41,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-05 19:15:41,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-05 19:15:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-05 19:15:41,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2024-11-05 19:15:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 19:15:41,077 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-05 19:15:41,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-05 19:15:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-05 19:15:41,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-05 19:15:41,080 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-05 19:15:41,087 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 [2024-11-05 19:15:41,282 WARN L453 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 [2024-11-05 19:15:41,285 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-05 19:15:41,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-05 19:15:43,690 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-05 19:15:43,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 07:15:43 BoogieIcfgContainer [2024-11-05 19:15:43,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-05 19:15:43,707 INFO L158 Benchmark]: Toolchain (without parser) took 19720.87ms. Allocated memory was 250.6MB in the beginning and 717.2MB in the end (delta: 466.6MB). Free memory was 216.3MB in the beginning and 641.1MB in the end (delta: -424.8MB). Peak memory consumption was 422.8MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,707 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 250.6MB. Free memory is still 206.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 19:15:43,708 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.83ms. Allocated memory is still 250.6MB. Free memory was 216.3MB in the beginning and 201.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.93ms. Allocated memory is still 250.6MB. Free memory was 201.2MB in the beginning and 198.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,709 INFO L158 Benchmark]: Boogie Preprocessor took 56.56ms. Allocated memory is still 250.6MB. Free memory was 198.9MB in the beginning and 196.0MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,710 INFO L158 Benchmark]: RCFGBuilder took 2414.22ms. Allocated memory is still 250.6MB. Free memory was 196.0MB in the beginning and 179.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,710 INFO L158 Benchmark]: TraceAbstraction took 16958.30ms. Allocated memory was 250.6MB in the beginning and 717.2MB in the end (delta: 466.6MB). Free memory was 178.2MB in the beginning and 641.1MB in the end (delta: -463.0MB). Peak memory consumption was 385.1MB. Max. memory is 8.0GB. [2024-11-05 19:15:43,711 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 250.6MB. Free memory is still 206.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.83ms. Allocated memory is still 250.6MB. Free memory was 216.3MB in the beginning and 201.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.93ms. Allocated memory is still 250.6MB. Free memory was 201.2MB in the beginning and 198.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.56ms. Allocated memory is still 250.6MB. Free memory was 198.9MB in the beginning and 196.0MB in the end (delta: 2.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 2414.22ms. Allocated memory is still 250.6MB. Free memory was 196.0MB in the beginning and 179.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 16958.30ms. Allocated memory was 250.6MB in the beginning and 717.2MB in the end (delta: 466.6MB). Free memory was 178.2MB in the beginning and 641.1MB in the end (delta: -463.0MB). Peak memory consumption was 385.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.5s, OverallIterations: 3, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 448 SdHoareTripleChecker+Valid, 6.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 744 SdHoareTripleChecker+Invalid, 5.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 496 mSDsCounter, 381 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 514 IncrementalHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 381 mSolverCounterUnsat, 248 mSDtfsCounter, 514 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 955 GetRequests, 890 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=2, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 153 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 469 NumberOfCodeBlocks, 469 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 932 ConstructedInterpolants, 9 QuantifiedInterpolants, 3088 SizeOfPredicates, 24 NumberOfNonLiveVariables, 745 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 7713/7800 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: (0 == var_1_19) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((0 != cond) && (((((((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_2 == \old(var_1_2))) && (var_1_3 == \old(var_1_3))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20))) && (var_1_21 == \old(var_1_21))) && (var_1_22 == \old(var_1_22))) && (last_1_var_1_7 == \old(last_1_var_1_7)))) RESULT: Ultimate proved your program to be correct! [2024-11-05 19:15:43,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...