/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:19:35,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:19:35,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:19:35,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:19:35,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:19:35,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:19:35,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:19:35,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:19:35,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:19:35,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:19:35,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:19:35,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:19:35,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:19:35,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:19:35,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:19:35,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:19:35,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:19:35,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:19:35,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:19:35,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:19:35,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:19:35,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:19:35,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:19:35,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:19:35,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:19:35,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:19:35,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:19:35,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:19:35,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:19:35,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:19:35,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:35,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:19:35,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:19:35,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:19:35,284 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:19:35,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:19:35,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:19:35,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:19:35,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:19:35,506 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:19:35,506 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:19:35,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2022-02-01 00:19:35,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79360afe3/fb65d2949e7d4d25a30c3f5cd8b0db52/FLAG73eb51b08 [2022-02-01 00:19:35,862 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:19:35,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0270a.c [2022-02-01 00:19:35,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79360afe3/fb65d2949e7d4d25a30c3f5cd8b0db52/FLAG73eb51b08 [2022-02-01 00:19:36,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79360afe3/fb65d2949e7d4d25a30c3f5cd8b0db52 [2022-02-01 00:19:36,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:19:36,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:19:36,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:36,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:19:36,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:19:36,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62168f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36, skipping insertion in model container [2022-02-01 00:19:36,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:19:36,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:19:36,469 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_0270a.c[4702,4715] [2022-02-01 00:19:36,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:36,477 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:19:36,502 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_0270a.c[4702,4715] [2022-02-01 00:19:36,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:19:36,512 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:19:36,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36 WrapperNode [2022-02-01 00:19:36,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:19:36,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:19:36,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:19:36,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:19:36,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:19:36,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:19:36,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:19:36,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:19:36,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (1/1) ... [2022-02-01 00:19:36,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:19:36,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:19:36,625 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) [2022-02-01 00:19:36,640 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 [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-02-01 00:19:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2022-02-01 00:19:36,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:19:36,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:19:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:19:36,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:19:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:19:36,725 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:19:36,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:19:36,982 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:19:36,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:19:36,987 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-02-01 00:19:36,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:36 BoogieIcfgContainer [2022-02-01 00:19:36,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:19:36,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:19:36,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:19:37,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:19:37,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:19:36" (1/3) ... [2022-02-01 00:19:37,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b771e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:37, skipping insertion in model container [2022-02-01 00:19:37,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:19:36" (2/3) ... [2022-02-01 00:19:37,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b771e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:19:37, skipping insertion in model container [2022-02-01 00:19:37,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:19:36" (3/3) ... [2022-02-01 00:19:37,018 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2022-02-01 00:19:37,021 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:19:37,021 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:19:37,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:19:37,064 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=QVASR [2022-02-01 00:19:37,065 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:19:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 67 states have internal predecessors, (105), 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) [2022-02-01 00:19:37,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-01 00:19:37,093 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:37,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:19:37,094 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:37,098 INFO L85 PathProgramCache]: Analyzing trace with hash 204171079, now seen corresponding path program 1 times [2022-02-01 00:19:37,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:37,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365401697] [2022-02-01 00:19:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:37,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:37,157 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:37,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:19:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:37,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:19:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:19:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:19:37,343 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:19:37,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365401697] [2022-02-01 00:19:37,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [365401697] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:19:37,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:19:37,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:19:37,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260323200] [2022-02-01 00:19:37,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:19:37,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:19:37,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:19:37,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:19:37,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:19:37,368 INFO L87 Difference]: Start difference. First operand has 80 states, 66 states have (on average 1.5909090909090908) internal successors, (105), 67 states have internal predecessors, (105), 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 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-01 00:19:37,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:19:37,714 INFO L93 Difference]: Finished difference Result 152 states and 229 transitions. [2022-02-01 00:19:37,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:19:37,716 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-02-01 00:19:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:19:37,722 INFO L225 Difference]: With dead ends: 152 [2022-02-01 00:19:37,723 INFO L226 Difference]: Without dead ends: 76 [2022-02-01 00:19:37,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:19:37,729 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 85 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:19:37,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 91 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-01 00:19:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-02-01 00:19:37,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-02-01 00:19:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 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) [2022-02-01 00:19:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 94 transitions. [2022-02-01 00:19:37,776 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 94 transitions. Word has length 17 [2022-02-01 00:19:37,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:19:37,777 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 94 transitions. [2022-02-01 00:19:37,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-02-01 00:19:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 94 transitions. [2022-02-01 00:19:37,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-01 00:19:37,778 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:19:37,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:19:37,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:19:37,779 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:19:37,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:19:37,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2082143930, now seen corresponding path program 1 times [2022-02-01 00:19:37,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:19:37,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245025209] [2022-02-01 00:19:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:19:37,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:19:37,784 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:19:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:37,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:19:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:19:37,865 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:19:37,865 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:19:37,868 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:19:37,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:19:37,874 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:19:37,875 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:19:37,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:19:37 BoogieIcfgContainer [2022-02-01 00:19:37,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:19:37,885 INFO L158 Benchmark]: Toolchain (without parser) took 1589.21ms. Allocated memory is still 201.3MB. Free memory was 147.5MB in the beginning and 84.9MB in the end (delta: 62.6MB). Peak memory consumption was 62.5MB. Max. memory is 8.0GB. [2022-02-01 00:19:37,886 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 163.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:19:37,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.70ms. Allocated memory is still 201.3MB. Free memory was 147.2MB in the beginning and 170.3MB in the end (delta: -23.1MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2022-02-01 00:19:37,891 INFO L158 Benchmark]: Boogie Preprocessor took 69.88ms. Allocated memory is still 201.3MB. Free memory was 170.3MB in the beginning and 168.0MB in the end (delta: 2.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-01 00:19:37,892 INFO L158 Benchmark]: RCFGBuilder took 404.90ms. Allocated memory is still 201.3MB. Free memory was 167.5MB in the beginning and 149.3MB in the end (delta: 18.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-02-01 00:19:37,892 INFO L158 Benchmark]: TraceAbstraction took 895.60ms. Allocated memory is still 201.3MB. Free memory was 148.8MB in the beginning and 84.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-02-01 00:19:37,896 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 163.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.70ms. Allocated memory is still 201.3MB. Free memory was 147.2MB in the beginning and 170.3MB in the end (delta: -23.1MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.88ms. Allocated memory is still 201.3MB. Free memory was 170.3MB in the beginning and 168.0MB in the end (delta: 2.3MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 404.90ms. Allocated memory is still 201.3MB. Free memory was 167.5MB in the beginning and 149.3MB in the end (delta: 18.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 895.60ms. Allocated memory is still 201.3MB. Free memory was 148.8MB in the beginning and 84.9MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. 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: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 195, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] 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; [L195] float x = -0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 88 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 89 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred 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 [2022-02-01 00:19:37,918 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...