/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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:01:18,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:01:18,646 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 08:01:18,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:01:18,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:01:18,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:01:18,683 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:01:18,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:01:18,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:01:18,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:01:18,684 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:01:18,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:01:18,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:01:18,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:01:18,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:01:18,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:01:18,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:01:18,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:01:18,687 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:01:18,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:01:18,688 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:01:18,689 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:01:18,689 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:01:18,689 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:01:18,690 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:01:18,690 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:01:18,690 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:01:18,690 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:01:18,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:01:18,691 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:01:18,691 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:01:18,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:01:18,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:01:18,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:01:18,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:01:18,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:01:18,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:01:18,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:01:18,697 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:01:18,698 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:01:18,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:01:18,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:01:18,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:01:18,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:01:18,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:01:18,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:01:18,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:01:18,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:01:18,939 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:01:18,940 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:01:18,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-06 08:01:20,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:01:20,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:01:20,610 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-06 08:01:20,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e394b59/9ae91dd2274141e7a3fcc97eb735153f/FLAG14821fdcd [2024-11-06 08:01:20,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8e394b59/9ae91dd2274141e7a3fcc97eb735153f [2024-11-06 08:01:20,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:01:20,644 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:01:20,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:01:20,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:01:20,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:01:20,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:20,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c8c3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20, skipping insertion in model container [2024-11-06 08:01:20,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:20,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:01:20,860 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-95.i[916,929] [2024-11-06 08:01:20,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:01:20,910 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:01:20,920 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-95.i[916,929] [2024-11-06 08:01:20,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:01:20,959 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:01:20,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20 WrapperNode [2024-11-06 08:01:20,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:01:20,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:01:20,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:01:20,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:01:20,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:20,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,006 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2024-11-06 08:01:21,007 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:01:21,007 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:01:21,008 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:01:21,008 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:01:21,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,044 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 08:01:21,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:01:21,062 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:01:21,062 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:01:21,062 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:01:21,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (1/1) ... [2024-11-06 08:01:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:01:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:01:21,100 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 08:01:21,103 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 08:01:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:01:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:01:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:01:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:01:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:01:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:01:21,194 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:01:21,195 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:01:27,177 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-06 08:01:27,178 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:01:27,196 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:01:27,197 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:01:27,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:27 BoogieIcfgContainer [2024-11-06 08:01:27,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:01:27,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:01:27,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:01:27,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:01:27,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:01:20" (1/3) ... [2024-11-06 08:01:27,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b13241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:27, skipping insertion in model container [2024-11-06 08:01:27,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:01:20" (2/3) ... [2024-11-06 08:01:27,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b13241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:01:27, skipping insertion in model container [2024-11-06 08:01:27,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:01:27" (3/3) ... [2024-11-06 08:01:27,208 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-95.i [2024-11-06 08:01:27,224 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:01:27,224 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:01:27,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:01:27,288 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;@37b3f00a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:01:27,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:01:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-06 08:01:27,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-06 08:01:27,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:01:27,306 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:01:27,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:01:27,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:01:27,313 INFO L85 PathProgramCache]: Analyzing trace with hash 311912880, now seen corresponding path program 1 times [2024-11-06 08:01:27,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:01:27,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362819149] [2024-11-06 08:01:27,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:01:27,329 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 08:01:27,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:01:27,335 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 08:01:27,337 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 08:01:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:01:27,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:01:27,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:01:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-06 08:01:27,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:01:27,670 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:01:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362819149] [2024-11-06 08:01:27,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362819149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:01:27,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:01:27,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:01:27,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184503482] [2024-11-06 08:01:27,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:01:27,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:01:27,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:01:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:01:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:01:27,704 INFO L87 Difference]: Start difference. First operand has 50 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 29 states have internal predecessors, (36), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-06 08:01:27,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:01:27,735 INFO L93 Difference]: Finished difference Result 93 states and 161 transitions. [2024-11-06 08:01:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:01:27,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 115 [2024-11-06 08:01:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:01:27,744 INFO L225 Difference]: With dead ends: 93 [2024-11-06 08:01:27,744 INFO L226 Difference]: Without dead ends: 46 [2024-11-06 08:01:27,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 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 08:01:27,755 INFO L432 NwaCegarLoop]: 66 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, 66 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 08:01:27,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:01:27,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-06 08:01:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-06 08:01:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-06 08:01:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2024-11-06 08:01:27,796 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 115 [2024-11-06 08:01:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:01:27,797 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2024-11-06 08:01:27,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-06 08:01:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2024-11-06 08:01:27,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-06 08:01:27,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:01:27,802 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:01:27,814 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 [2024-11-06 08:01:28,006 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 08:01:28,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:01:28,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:01:28,008 INFO L85 PathProgramCache]: Analyzing trace with hash 470655502, now seen corresponding path program 1 times [2024-11-06 08:01:28,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:01:28,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703428436] [2024-11-06 08:01:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:01:28,010 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 08:01:28,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:01:28,015 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 08:01:28,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-06 08:01:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:01:28,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:01:28,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:01:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-06 08:01:28,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:01:28,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:01:28,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703428436] [2024-11-06 08:01:28,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [703428436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:01:28,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572230834] [2024-11-06 08:01:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:01:28,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:01:28,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:01:28,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:01:28,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 08:01:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:01:29,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 08:01:29,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:01:30,006 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 340 proven. 33 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2024-11-06 08:01:30,006 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:01:30,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572230834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:01:30,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 08:01:30,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2024-11-06 08:01:30,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282879307] [2024-11-06 08:01:30,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 08:01:30,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-06 08:01:30,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:01:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-06 08:01:30,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-11-06 08:01:30,123 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-06 08:01:34,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:38,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:40,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-06 08:01:44,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:46,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:48,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:51,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:01:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:01:51,090 INFO L93 Difference]: Finished difference Result 149 states and 207 transitions. [2024-11-06 08:01:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-06 08:01:51,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 116 [2024-11-06 08:01:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:01:51,120 INFO L225 Difference]: With dead ends: 149 [2024-11-06 08:01:51,120 INFO L226 Difference]: Without dead ends: 106 [2024-11-06 08:01:51,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-11-06 08:01:51,123 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 60 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 70 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2024-11-06 08:01:51,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 218 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 303 Invalid, 1 Unknown, 0 Unchecked, 20.5s Time] [2024-11-06 08:01:51,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-06 08:01:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 50. [2024-11-06 08:01:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-06 08:01:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2024-11-06 08:01:51,144 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 116 [2024-11-06 08:01:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:01:51,145 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2024-11-06 08:01:51,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 4 states have call successors, (38), 4 states have call predecessors, (38), 6 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2024-11-06 08:01:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2024-11-06 08:01:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-06 08:01:51,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:01:51,148 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:01:51,161 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 [2024-11-06 08:01:51,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-06 08:01:51,551 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=3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:01:51,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:01:51,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:01:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1304351860, now seen corresponding path program 1 times [2024-11-06 08:01:51,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:01:51,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545623206] [2024-11-06 08:01:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:01:51,555 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 08:01:51,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:01:51,559 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:01:51,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-06 08:01:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 08:01:51,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-06 08:01:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-06 08:01:51,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2024-11-06 08:01:51,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442838507] [2024-11-06 08:01:51,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:01:51,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:01:51,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:01:51,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 08:01:51,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 08:01:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:01:52,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-06 08:01:52,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:01:58,594 WARN L286 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:02:06,709 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:02:16,586 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:02:24,695 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:02:32,789 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:02:41,352 WARN L851 $PredicateComparison]: unable to prove that (and (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse0 (fp.lt .cse2 .cse3)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse0 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse2)) c_~var_1_3~0)) (and (not .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse3)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0))) is different from false [2024-11-06 08:02:45,377 WARN L873 $PredicateComparison]: unable to prove that (and (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 513.0 2.0))) (.cse3 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode c_~var_1_6~0) ((_ to_fp 8 24) c_currentRoundingMode (/ 129.0 8.0))))) (let ((.cse0 (fp.lt .cse2 .cse3)) (.cse1 ((_ to_fp 8 24) c_currentRoundingMode (bvadd c_~var_1_4~0 (bvneg c_~var_1_5~0))))) (or (and .cse0 (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse2)) c_~var_1_3~0)) (and (not .cse0) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode .cse1 .cse3)) c_~var_1_3~0))))) (= c_~var_1_16~0 c_~var_1_17~0) (= c_~var_1_1~0 ((_ zero_extend 24) c_~last_1_var_1_7~0))) is different from true [2024-11-06 08:02:57,596 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-06 08:03:04,380 WARN L286 SmtUtils]: Spent 6.78s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)