/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/double_req_bl_0662b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:41,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:41,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:41,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:58:41,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:41,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:41,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:41,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:41,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:41,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:41,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:41,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:41,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:41,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:41,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:41,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:41,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:58:41,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:41,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:41,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:41,387 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 22:58:41,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:41,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:41,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:41,396 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:41,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:41,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:41,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:41,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:41,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:41,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:41,398 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:41,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:41,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:41,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:41,592 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:41,602 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:41,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2022-01-31 22:58:41,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67734c70b/f242f8edceb8446ca5795b0aca647ec2/FLAGf00864dd8 [2022-01-31 22:58:42,010 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:42,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2022-01-31 22:58:42,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67734c70b/f242f8edceb8446ca5795b0aca647ec2/FLAGf00864dd8 [2022-01-31 22:58:42,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67734c70b/f242f8edceb8446ca5795b0aca647ec2 [2022-01-31 22:58:42,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:42,030 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:42,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:42,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:42,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:42,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559ff837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42, skipping insertion in model container [2022-01-31 22:58:42,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:42,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:42,214 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_0662b.c[6224,6237] [2022-01-31 22:58:42,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:42,226 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:42,252 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_0662b.c[6224,6237] [2022-01-31 22:58:42,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:42,262 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:42,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42 WrapperNode [2022-01-31 22:58:42,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:42,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:42,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:42,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:42,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:42,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:42,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:42,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:42,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (1/1) ... [2022-01-31 22:58:42,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:42,347 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 22:58:42,357 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 22:58:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:42,381 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:42,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:42,382 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:42,383 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:42,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:42,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:42,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:42,468 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:42,469 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:42,762 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:42,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:42,768 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-01-31 22:58:42,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:42 BoogieIcfgContainer [2022-01-31 22:58:42,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:42,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:42,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:42,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:42,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:42" (1/3) ... [2022-01-31 22:58:42,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760c8c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:42, skipping insertion in model container [2022-01-31 22:58:42,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:42" (2/3) ... [2022-01-31 22:58:42,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@760c8c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:42, skipping insertion in model container [2022-01-31 22:58:42,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:42" (3/3) ... [2022-01-31 22:58:42,776 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2022-01-31 22:58:42,780 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:42,780 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:42,807 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:42,812 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 22:58:42,812 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:42,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 89 states have (on average 1.6404494382022472) internal successors, (146), 90 states have internal predecessors, (146), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 22:58:42,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 22:58:42,831 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:42,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-31 22:58:42,832 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:42,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 310709798, now seen corresponding path program 1 times [2022-01-31 22:58:42,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:42,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315328476] [2022-01-31 22:58:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:42,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:42,879 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-01-31 22:58:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:43,089 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 22:58:43,090 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:43,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315328476] [2022-01-31 22:58:43,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1315328476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:43,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:43,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:43,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506914211] [2022-01-31 22:58:43,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:43,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:43,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:43,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:43,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:43,130 INFO L87 Difference]: Start difference. First operand has 103 states, 89 states have (on average 1.6404494382022472) internal successors, (146), 90 states have internal predecessors, (146), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-01-31 22:58:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:58:43,494 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2022-01-31 22:58:43,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:58:43,496 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), 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 19 [2022-01-31 22:58:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:58:43,504 INFO L225 Difference]: With dead ends: 200 [2022-01-31 22:58:43,504 INFO L226 Difference]: Without dead ends: 98 [2022-01-31 22:58:43,508 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 [2022-01-31 22:58:43,511 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 134 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:58:43,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 135 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:58:43,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-01-31 22:58:43,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-01-31 22:58:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 86 states have (on average 1.441860465116279) internal successors, (124), 86 states have internal predecessors, (124), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 22:58:43,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2022-01-31 22:58:43,547 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2022-01-31 22:58:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:58:43,548 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2022-01-31 22:58:43,548 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), 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) [2022-01-31 22:58:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2022-01-31 22:58:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 22:58:43,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:43,549 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 22:58:43,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:58:43,549 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:43,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash -2040164497, now seen corresponding path program 1 times [2022-01-31 22:58:43,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:43,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484154466] [2022-01-31 22:58:43,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:43,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:43,552 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:43,603 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:58:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:43,654 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:58:43,654 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:58:43,656 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:58:43,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:58:43,659 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:58:43,661 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:58:43,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:58:43 BoogieIcfgContainer [2022-01-31 22:58:43,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:58:43,675 INFO L158 Benchmark]: Toolchain (without parser) took 1645.06ms. Allocated memory is still 216.0MB. Free memory was 166.8MB in the beginning and 85.7MB in the end (delta: 81.1MB). Peak memory consumption was 79.8MB. Max. memory is 8.0GB. [2022-01-31 22:58:43,675 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 216.0MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:58:43,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.60ms. Allocated memory is still 216.0MB. Free memory was 166.6MB in the beginning and 189.0MB in the end (delta: -22.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-31 22:58:43,676 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 216.0MB. Free memory was 189.0MB in the beginning and 186.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:43,676 INFO L158 Benchmark]: RCFGBuilder took 464.04ms. Allocated memory is still 216.0MB. Free memory was 186.4MB in the beginning and 163.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:43,676 INFO L158 Benchmark]: TraceAbstraction took 902.91ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 85.7MB in the end (delta: 77.1MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2022-01-31 22:58:43,677 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 216.0MB. Free memory is still 183.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 230.60ms. Allocated memory is still 216.0MB. Free memory was 166.6MB in the beginning and 189.0MB in the end (delta: -22.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 216.0MB. Free memory was 189.0MB in the beginning and 186.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 464.04ms. Allocated memory is still 216.0MB. Free memory was 186.4MB in the beginning and 163.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 902.91ms. Allocated memory is still 216.0MB. Free memory was 162.8MB in the beginning and 85.7MB in the end (delta: 77.1MB). Peak memory consumption was 77.6MB. 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: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. 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; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L258] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 [L262] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 106 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 138 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 133 mSDtfsCounter, 141 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=103occurred 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 22:58:43,703 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...