/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/newton_2_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 09:12:22,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 09:12:22,745 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 09:12:22,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 09:12:22,749 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 09:12:22,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 09:12:22,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 09:12:22,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 09:12:22,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 09:12:22,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 09:12:22,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 09:12:22,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 09:12:22,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 09:12:22,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 09:12:22,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 09:12:22,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 09:12:22,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 09:12:22,785 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 09:12:22,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 09:12:22,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 09:12:22,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 09:12:22,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 09:12:22,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 09:12:22,790 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 09:12:22,791 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 09:12:22,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 09:12:22,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 09:12:22,791 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 09:12:22,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 09:12:22,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 09:12:22,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 09:12:22,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 09:12:22,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 09:12:22,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 09:12:22,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 09:12:22,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 09:12:22,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 09:12:22,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 09:12:22,794 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 09:12:22,794 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 09:12:22,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 09:12:22,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 09:12:22,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 09:12:22,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 09:12:22,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 09:12:23,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 09:12:23,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 09:12:23,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 09:12:23,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 09:12:23,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 09:12:23,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_2_2.i [2024-11-06 09:12:24,456 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 09:12:24,627 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 09:12:24,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_2.i [2024-11-06 09:12:24,633 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226beb0ed/794c28ee98da425e830191496a6e626c/FLAG5b6838250 [2024-11-06 09:12:24,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226beb0ed/794c28ee98da425e830191496a6e626c [2024-11-06 09:12:24,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 09:12:24,648 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 09:12:24,650 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 09:12:24,650 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 09:12:24,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 09:12:24,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@650d360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24, skipping insertion in model container [2024-11-06 09:12:24,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 09:12:24,877 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_2.i[1743,1756] [2024-11-06 09:12:24,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 09:12:24,893 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 09:12:24,909 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_2_2.i[1743,1756] [2024-11-06 09:12:24,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 09:12:24,926 INFO L204 MainTranslator]: Completed translation [2024-11-06 09:12:24,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24 WrapperNode [2024-11-06 09:12:24,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 09:12:24,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 09:12:24,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 09:12:24,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 09:12:24,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,955 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30 [2024-11-06 09:12:24,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 09:12:24,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 09:12:24,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 09:12:24,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 09:12:24,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,976 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]. [2024-11-06 09:12:24,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,989 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:24,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 09:12:24,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 09:12:24,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 09:12:24,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 09:12:24,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (1/1) ... [2024-11-06 09:12:25,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 09:12:25,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 09:12:25,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 09:12:25,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 09:12:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 09:12:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-06 09:12:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-06 09:12:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 09:12:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2024-11-06 09:12:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2024-11-06 09:12:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 09:12:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 09:12:25,107 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 09:12:25,109 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 09:12:35,890 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-06 09:12:35,890 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 09:12:35,899 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 09:12:35,900 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-06 09:12:35,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:35 BoogieIcfgContainer [2024-11-06 09:12:35,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 09:12:35,903 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 09:12:35,903 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 09:12:35,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 09:12:35,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:12:24" (1/3) ... [2024-11-06 09:12:35,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93c0c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:35, skipping insertion in model container [2024-11-06 09:12:35,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:12:24" (2/3) ... [2024-11-06 09:12:35,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93c0c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:12:35, skipping insertion in model container [2024-11-06 09:12:35,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:12:35" (3/3) ... [2024-11-06 09:12:35,909 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_2.i [2024-11-06 09:12:35,923 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 09:12:35,923 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 09:12:35,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 09:12:35,973 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;@770b6656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 09:12:35,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 09:12:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-06 09:12:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-06 09:12:35,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 09:12:35,986 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 09:12:35,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 09:12:35,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 09:12:35,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1905727787, now seen corresponding path program 1 times [2024-11-06 09:12:36,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 09:12:36,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688975774] [2024-11-06 09:12:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 09:12:36,004 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 09:12:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 09:12:36,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 09:12:36,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-06 09:12:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 09:12:37,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 09:12:37,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 09:12:37,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 09:12:37,993 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 09:12:37,994 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 09:12:37,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688975774] [2024-11-06 09:12:37,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688975774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 09:12:37,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 09:12:37,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 09:12:37,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672154619] [2024-11-06 09:12:37,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 09:12:38,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 09:12:38,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 09:12:38,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 09:12:38,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 09:12:38,024 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 09:12:38,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 09:12:38,040 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-06 09:12:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 09:12:38,042 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2024-11-06 09:12:38,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 09:12:38,047 INFO L225 Difference]: With dead ends: 43 [2024-11-06 09:12:38,047 INFO L226 Difference]: Without dead ends: 19 [2024-11-06 09:12:38,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 09:12:38,054 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 09:12:38,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 09:12:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-06 09:12:38,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-06 09:12:38,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-06 09:12:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2024-11-06 09:12:38,093 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 24 [2024-11-06 09:12:38,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 09:12:38,094 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2024-11-06 09:12:38,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-06 09:12:38,094 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-06 09:12:38,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-06 09:12:38,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 09:12:38,096 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 09:12:38,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-06 09:12:38,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 09:12:38,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 09:12:38,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 09:12:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2124582505, now seen corresponding path program 1 times [2024-11-06 09:12:38,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 09:12:38,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1229278428] [2024-11-06 09:12:38,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 09:12:38,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 09:12:38,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 09:12:38,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 09:12:38,308 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