/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy WOLF -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-05 22:49:16,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 22:49:16,759 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 22:49:16,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 22:49:16,764 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 22:49:16,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 22:49:16,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 22:49:16,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 22:49:16,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 22:49:16,792 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 22:49:16,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 22:49:16,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 22:49:16,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 22:49:16,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 22:49:16,793 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 22:49:16,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 22:49:16,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 22:49:16,794 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-05 22:49:16,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-05 22:49:16,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 22:49:16,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 22:49:16,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 22:49:16,799 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-05 22:49:16,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 22:49:16,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 22:49:16,800 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 22:49:16,800 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 22:49:16,800 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 22:49:16,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 22:49:16,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 22:49:16,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 22:49:16,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 22:49:16,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 22:49:16,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 22:49:16,802 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> WOLF [2024-11-05 22:49:16,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 22:49:17,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 22:49:17,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 22:49:17,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 22:49:17,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 22:49:17,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-05 22:49:18,328 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 22:49:18,460 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 22:49:18,460 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-05 22:49:18,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243b91738/30f13c351e704e7e8f764ec74b40b106/FLAG6f764b635 [2024-11-05 22:49:18,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243b91738/30f13c351e704e7e8f764ec74b40b106 [2024-11-05 22:49:18,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 22:49:18,478 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 22:49:18,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 22:49:18,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 22:49:18,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 22:49:18,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@422e2c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18, skipping insertion in model container [2024-11-05 22:49:18,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 22:49:18,616 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_has-floats_file-9.i[916,929] [2024-11-05 22:49:18,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 22:49:18,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 22:49:18,662 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_has-floats_file-9.i[916,929] [2024-11-05 22:49:18,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 22:49:18,686 INFO L204 MainTranslator]: Completed translation [2024-11-05 22:49:18,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18 WrapperNode [2024-11-05 22:49:18,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 22:49:18,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 22:49:18,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 22:49:18,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 22:49:18,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,713 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 81 [2024-11-05 22:49:18,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 22:49:18,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 22:49:18,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 22:49:18,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 22:49:18,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,735 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 22:49:18,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,738 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 22:49:18,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 22:49:18,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 22:49:18,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 22:49:18,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (1/1) ... [2024-11-05 22:49:18,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 22:49:18,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 22:49:18,781 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 22:49:18,782 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 22:49:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 22:49:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 22:49:18,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 22:49:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 22:49:18,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 22:49:18,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 22:49:18,858 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 22:49:18,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 22:49:19,017 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-05 22:49:19,017 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 22:49:19,027 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 22:49:19,027 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 22:49:19,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:49:19 BoogieIcfgContainer [2024-11-05 22:49:19,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 22:49:19,029 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 22:49:19,030 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 22:49:19,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 22:49:19,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:49:18" (1/3) ... [2024-11-05 22:49:19,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e67717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:49:19, skipping insertion in model container [2024-11-05 22:49:19,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:49:18" (2/3) ... [2024-11-05 22:49:19,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e67717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:49:19, skipping insertion in model container [2024-11-05 22:49:19,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:49:19" (3/3) ... [2024-11-05 22:49:19,034 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-9.i [2024-11-05 22:49:19,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 22:49:19,047 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 22:49:19,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 22:49:19,093 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;@54509f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 22:49:19,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 22:49:19,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-05 22:49:19,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 22:49:19,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 22:49:19,105 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 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 22:49:19,105 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 22:49:19,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 22:49:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1278231313, now seen corresponding path program 1 times [2024-11-05 22:49:19,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 22:49:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093223662] [2024-11-05 22:49:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:49:19,121 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 22:49:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 22:49:19,125 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 22:49:19,126 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 22:49:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 22:49:19,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 22:49:19,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 22:49:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-05 22:49:19,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-05 22:49:19,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-05 22:49:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093223662] [2024-11-05 22:49:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093223662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-05 22:49:19,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-05 22:49:19,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-05 22:49:19,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865860932] [2024-11-05 22:49:19,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 22:49:19,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 22:49:19,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-05 22:49:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 22:49:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 22:49:19,302 INFO L87 Difference]: Start difference. First operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 22:49:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 22:49:19,320 INFO L93 Difference]: Finished difference Result 60 states and 89 transitions. [2024-11-05 22:49:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 22:49:19,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-05 22:49:19,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 22:49:19,327 INFO L225 Difference]: With dead ends: 60 [2024-11-05 22:49:19,328 INFO L226 Difference]: Without dead ends: 29 [2024-11-05 22:49:19,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 22:49:19,333 INFO L432 NwaCegarLoop]: 36 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, 36 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 [2024-11-05 22:49:19,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 22:49:19,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-05 22:49:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-05 22:49:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-05 22:49:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2024-11-05 22:49:19,367 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 42 [2024-11-05 22:49:19,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 22:49:19,367 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2024-11-05 22:49:19,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-05 22:49:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-05 22:49:19,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 22:49:19,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 22:49:19,370 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 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 22:49:19,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-05 22:49:19,575 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 22:49:19,576 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 22:49:19,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 22:49:19,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1952905197, now seen corresponding path program 1 times [2024-11-05 22:49:19,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 22:49:19,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865677575] [2024-11-05 22:49:19,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:49:19,578 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 22:49:19,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 22:49:19,579 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 22:49:19,580 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 22:49:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 22:49:19,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-05 22:49:19,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 22:49:19,971 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-05 22:49:19,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-05 22:49:19,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-05 22:49:19,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865677575] [2024-11-05 22:49:19,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865677575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-05 22:49:19,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-05 22:49:19,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-05 22:49:19,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186164719] [2024-11-05 22:49:19,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-05 22:49:19,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-05 22:49:19,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-05 22:49:19,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-05 22:49:19,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-05 22:49:19,975 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-05 22:49:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 22:49:20,128 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2024-11-05 22:49:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-05 22:49:20,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2024-11-05 22:49:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 22:49:20,130 INFO L225 Difference]: With dead ends: 81 [2024-11-05 22:49:20,131 INFO L226 Difference]: Without dead ends: 55 [2024-11-05 22:49:20,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-05 22:49:20,132 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 26 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-05 22:49:20,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 95 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-05 22:49:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-05 22:49:20,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2024-11-05 22:49:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-05 22:49:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2024-11-05 22:49:20,144 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 42 [2024-11-05 22:49:20,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 22:49:20,144 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2024-11-05 22:49:20,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-05 22:49:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2024-11-05 22:49:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-05 22:49:20,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 22:49:20,145 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 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 22:49:20,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-05 22:49:20,346 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 22:49:20,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 22:49:20,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 22:49:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1272846827, now seen corresponding path program 1 times [2024-11-05 22:49:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-05 22:49:20,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430766043] [2024-11-05 22:49:20,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 22:49:20,347 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 22:49:20,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 22:49:20,350 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 22:49:20,351 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 22:49:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 22:49:20,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-05 22:49:20,418 INFO L278 TraceCheckSpWp]: Computing forward predicates...