/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:45,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:45,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:45,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:00:45,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:45,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:45,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:45,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:45,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:45,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:45,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:45,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:45,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:45,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:45,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:45,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:45,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:00:45,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:45,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:45,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:46,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-01-31 23:00:46,008 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:46,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:46,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:46,009 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:46,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:46,009 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:46,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:46,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:46,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:46,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:46,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:46,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:46,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:46,011 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:46,011 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:46,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:46,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:46,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:46,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:46,176 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:46,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a.c [2022-01-31 23:00:46,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e9c501/524cc1b0923e4cbe92d5dbc0aa6ba884/FLAGe05998680 [2022-01-31 23:00:46,575 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:46,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250a.c [2022-01-31 23:00:46,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e9c501/524cc1b0923e4cbe92d5dbc0aa6ba884/FLAGe05998680 [2022-01-31 23:00:46,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e97e9c501/524cc1b0923e4cbe92d5dbc0aa6ba884 [2022-01-31 23:00:46,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:46,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:46,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:46,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:46,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:46,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:46" (1/1) ... [2022-01-31 23:00:46,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f9ae29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:46, skipping insertion in model container [2022-01-31 23:00:46,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:46" (1/1) ... [2022-01-31 23:00:46,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:47,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:47,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250a.c[5433,5446] [2022-01-31 23:00:47,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:47,296 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:47,347 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250a.c[5433,5446] [2022-01-31 23:00:47,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:47,362 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:47,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47 WrapperNode [2022-01-31 23:00:47,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:47,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:47,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:47,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:47,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:47,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:47,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:47,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:47,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (1/1) ... [2022-01-31 23:00:47,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:47,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:47,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-31 23:00:47,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-31 23:00:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:47,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-01-31 23:00:47,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-01-31 23:00:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-01-31 23:00:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:00:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2022-01-31 23:00:47,464 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:47,464 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:47,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:47,466 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:47,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:47,552 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:47,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:47,882 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:47,887 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:47,887 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-01-31 23:00:47,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:47 BoogieIcfgContainer [2022-01-31 23:00:47,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:47,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:47,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:47,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:47,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:46" (1/3) ... [2022-01-31 23:00:47,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eeb1e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:47, skipping insertion in model container [2022-01-31 23:00:47,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:47" (2/3) ... [2022-01-31 23:00:47,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eeb1e5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:47, skipping insertion in model container [2022-01-31 23:00:47,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:47" (3/3) ... [2022-01-31 23:00:47,898 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a.c [2022-01-31 23:00:47,902 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:47,902 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:47,935 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:47,939 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=JORDAN [2022-01-31 23:00:47,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 63 states have internal predecessors, (98), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:00:47,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 23:00:47,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:47,954 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:47,954 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:47,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2000061552, now seen corresponding path program 1 times [2022-01-31 23:00:47,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:47,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [93435127] [2022-01-31 23:00:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:47,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:48,007 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:48,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:00:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:48,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-01-31 23:00:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-31 23:00:48,153 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:48,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [93435127] [2022-01-31 23:00:48,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [93435127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:48,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:48,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:48,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594153908] [2022-01-31 23:00:48,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:48,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:48,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:48,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:48,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:48,180 INFO L87 Difference]: Start difference. First operand has 76 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 63 states have internal predecessors, (98), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:00:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:48,494 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2022-01-31 23:00:48,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:48,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-01-31 23:00:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:48,502 INFO L225 Difference]: With dead ends: 144 [2022-01-31 23:00:48,502 INFO L226 Difference]: Without dead ends: 72 [2022-01-31 23:00:48,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-31 23:00:48,509 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 82 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 23:00:48,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 87 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 23:00:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-01-31 23:00:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-01-31 23:00:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.3) internal successors, (78), 60 states have internal predecessors, (78), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 23:00:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2022-01-31 23:00:48,552 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2022-01-31 23:00:48,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:48,553 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2022-01-31 23:00:48,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:00:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2022-01-31 23:00:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 23:00:48,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:48,554 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 23:00:48,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:48,554 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:48,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1828033367, now seen corresponding path program 1 times [2022-01-31 23:00:48,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:48,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659078129] [2022-01-31 23:00:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:48,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:48,557 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:48,601 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:48,632 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:48,632 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:48,634 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:48,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:48,637 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:48,639 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:48,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:48 BoogieIcfgContainer [2022-01-31 23:00:48,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:48,648 INFO L158 Benchmark]: Toolchain (without parser) took 1683.09ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 101.1MB in the beginning and 136.1MB in the end (delta: -35.0MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-01-31 23:00:48,648 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 154.1MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:48,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.69ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 100.9MB in the beginning and 162.3MB in the end (delta: -61.5MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-01-31 23:00:48,649 INFO L158 Benchmark]: Boogie Preprocessor took 32.93ms. Allocated memory is still 194.0MB. Free memory was 162.3MB in the beginning and 159.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:48,649 INFO L158 Benchmark]: RCFGBuilder took 495.00ms. Allocated memory is still 194.0MB. Free memory was 159.9MB in the beginning and 140.3MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-31 23:00:48,649 INFO L158 Benchmark]: TraceAbstraction took 754.06ms. Allocated memory is still 194.0MB. Free memory was 139.7MB in the beginning and 136.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.4MB. Max. memory is 8.0GB. [2022-01-31 23:00:48,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 154.1MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.69ms. Allocated memory was 154.1MB in the beginning and 194.0MB in the end (delta: 39.8MB). Free memory was 100.9MB in the beginning and 162.3MB in the end (delta: -61.5MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.93ms. Allocated memory is still 194.0MB. Free memory was 162.3MB in the beginning and 159.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 495.00ms. Allocated memory is still 194.0MB. Free memory was 159.9MB in the beginning and 140.3MB in the end (delta: 19.6MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 754.06ms. Allocated memory is still 194.0MB. Free memory was 139.7MB in the beginning and 136.1MB in the end (delta: 3.6MB). Peak memory consumption was 3.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of bitwiseAnd at line 163, overapproximation of someUnaryFLOAToperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 166. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L62] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L145-L153] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L230] float x = 1.0f / 0.0f; [L231] CALL, EXPR __ieee754_asinf(x) [L156] float t, w, p, q, c, r, s; [L157] __int32_t hx, ix; [L159] ieee_float_shape_type gf_u; [L160] gf_u.value = (x) [L161] EXPR gf_u.word [L161] (hx) = gf_u.word [L163] ix = hx & 0x7fffffff [L164] COND TRUE ix == 0x3f800000 [L166] return x * pio2_hi_asin + x * pio2_lo_asin; [L231] RET, EXPR __ieee754_asinf(x) [L231] float res = __ieee754_asinf(x); [L234] CALL, EXPR isnan_float(res) [L60] return x != x; [L234] RET, EXPR isnan_float(res) [L234] COND TRUE !isnan_float(res) [L235] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 85 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-01-31 23:00:48,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...