/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/double_req_bl_0621a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:18:11,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:18:11,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:18:11,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:18:11,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:18:11,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:18:11,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:18:11,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:18:11,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:18:11,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:18:11,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:18:11,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:18:11,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:18:11,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:18:11,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:18:11,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:18:11,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:18:11,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:18:11,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:18:11,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:18:11,628 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 00:18:11,636 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:18:11,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:18:11,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:18:11,638 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:18:11,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:18:11,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:18:11,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:18:11,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:18:11,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:18:11,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:11,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:18:11,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:18:11,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:18:11,640 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:18:11,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:18:11,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:18:11,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:18:11,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:18:11,864 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:18:11,865 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:18:11,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0621a.c [2022-02-01 00:18:11,910 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb8cce3/65df8050ee0b46fb8e636dae23e28a5d/FLAGa6ccfdf60 [2022-02-01 00:18:12,254 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:18:12,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0621a.c [2022-02-01 00:18:12,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb8cce3/65df8050ee0b46fb8e636dae23e28a5d/FLAGa6ccfdf60 [2022-02-01 00:18:12,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1cb8cce3/65df8050ee0b46fb8e636dae23e28a5d [2022-02-01 00:18:12,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:18:12,629 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:18:12,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:12,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:18:12,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:18:12,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d632371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12, skipping insertion in model container [2022-02-01 00:18:12,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:18:12,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:18:12,826 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/double_req_bl_0621a.c[3711,3724] [2022-02-01 00:18:12,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:12,833 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:18:12,861 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/double_req_bl_0621a.c[3711,3724] [2022-02-01 00:18:12,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:12,872 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:18:12,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12 WrapperNode [2022-02-01 00:18:12,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:12,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:18:12,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:18:12,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:18:12,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:18:12,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:18:12,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:18:12,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:18:12,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (1/1) ... [2022-02-01 00:18:12,932 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:18:12,948 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 00:18:12,982 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 00:18:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:18:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:18:12,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:18:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-01 00:18:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-02-01 00:18:12,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:18:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:18:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:18:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:18:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:18:12,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:18:12,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:18:12,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:18:13,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:18:13,106 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:18:13,107 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:18:13,289 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:18:13,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:18:13,294 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-02-01 00:18:13,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:13 BoogieIcfgContainer [2022-02-01 00:18:13,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:18:13,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:18:13,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:18:13,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:18:13,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:12" (1/3) ... [2022-02-01 00:18:13,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429deae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:13, skipping insertion in model container [2022-02-01 00:18:13,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:12" (2/3) ... [2022-02-01 00:18:13,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@429deae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:13, skipping insertion in model container [2022-02-01 00:18:13,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:13" (3/3) ... [2022-02-01 00:18:13,301 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0621a.c [2022-02-01 00:18:13,304 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:18:13,304 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:18:13,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:18:13,338 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 00:18:13,339 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:18:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 38 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-01 00:18:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-01 00:18:13,366 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:13,367 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 00:18:13,367 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:13,375 INFO L85 PathProgramCache]: Analyzing trace with hash -661755063, now seen corresponding path program 1 times [2022-02-01 00:18:13,381 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:13,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500190706] [2022-02-01 00:18:13,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:13,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:13,435 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:13,656 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 00:18:13,658 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:13,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500190706] [2022-02-01 00:18:13,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1500190706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:13,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:13,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:18:13,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30246223] [2022-02-01 00:18:13,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:13,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:18:13,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:18:13,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:18:13,691 INFO L87 Difference]: Start difference. First operand has 47 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 38 states have internal predecessors, (58), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 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 00:18:13,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:13,919 INFO L93 Difference]: Finished difference Result 86 states and 125 transitions. [2022-02-01 00:18:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:18:13,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 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 18 [2022-02-01 00:18:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:13,927 INFO L225 Difference]: With dead ends: 86 [2022-02-01 00:18:13,927 INFO L226 Difference]: Without dead ends: 43 [2022-02-01 00:18:13,930 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 00:18:13,952 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:13,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 54 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-01 00:18:13,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-02-01 00:18:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-02-01 00:18:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 35 states have (on average 1.3142857142857143) internal successors, (46), 35 states have internal predecessors, (46), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-01 00:18:14,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-02-01 00:18:14,038 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 18 [2022-02-01 00:18:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:14,039 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-02-01 00:18:14,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 2 states have internal predecessors, (13), 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 00:18:14,039 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-02-01 00:18:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-01 00:18:14,041 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:14,041 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] [2022-02-01 00:18:14,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:18:14,042 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:14,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash 623550471, now seen corresponding path program 1 times [2022-02-01 00:18:14,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:14,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614943331] [2022-02-01 00:18:14,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:14,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:14,046 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:14,131 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:18:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:14,241 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:18:14,242 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:18:14,244 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:18:14,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:18:14,267 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:18:14,270 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:18:14,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:14 BoogieIcfgContainer [2022-02-01 00:18:14,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:18:14,284 INFO L158 Benchmark]: Toolchain (without parser) took 1654.54ms. Allocated memory was 217.1MB in the beginning and 262.1MB in the end (delta: 45.1MB). Free memory was 163.1MB in the beginning and 217.6MB in the end (delta: -54.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:14,284 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 217.1MB. Free memory is still 179.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:14,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.75ms. Allocated memory is still 217.1MB. Free memory was 162.9MB in the beginning and 185.9MB in the end (delta: -23.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-01 00:18:14,287 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory is still 217.1MB. Free memory was 185.9MB in the beginning and 183.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-01 00:18:14,287 INFO L158 Benchmark]: RCFGBuilder took 375.95ms. Allocated memory is still 217.1MB. Free memory was 183.9MB in the beginning and 168.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-01 00:18:14,289 INFO L158 Benchmark]: TraceAbstraction took 987.32ms. Allocated memory was 217.1MB in the beginning and 262.1MB in the end (delta: 45.1MB). Free memory was 168.6MB in the beginning and 217.6MB in the end (delta: -49.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:14,293 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 217.1MB. Free memory is still 179.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.75ms. Allocated memory is still 217.1MB. Free memory was 162.9MB in the beginning and 185.9MB in the end (delta: -23.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.38ms. Allocated memory is still 217.1MB. Free memory was 185.9MB in the beginning and 183.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 375.95ms. Allocated memory is still 217.1MB. Free memory was 183.9MB in the beginning and 168.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 987.32ms. Allocated memory was 217.1MB in the beginning and 262.1MB in the end (delta: 45.1MB). Free memory was 168.6MB in the beginning and 217.6MB in the end (delta: -49.0MB). There was no memory consumed. 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: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L143] double x = 1.0 / 0.0; [L144] CALL, EXPR atan_double(x) [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; [L144] RET, EXPR atan_double(x) [L144] double res = atan_double(x); [L146] COND TRUE res != pi_o_2 [L147] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 52 mSDtfsCounter, 56 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=47occurred 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: 0.1s 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 00:18:14,339 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...