/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_0681b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:58:50,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:58:50,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:58:50,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 22:58:50,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:58:50,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:58:50,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:58:50,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:58:50,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:58:50,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:58:50,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:58:50,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:58:50,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:58:50,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:58:50,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:58:50,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:58:50,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 22:58:50,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:58:50,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:58:50,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:58:50,679 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 22:58:50,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:58:50,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:58:50,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:58:50,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:58:50,693 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:58:50,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:58:50,693 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:58:50,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:58:50,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:50,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:58:50,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:58:50,695 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:58:50,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:58:50,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:58:50,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:58:50,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:58:50,950 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:58:50,950 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:58:50,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2022-01-31 22:58:51,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6f10061/0d4a42d87ee4457ab03e4b5955823b15/FLAGcec4e1229 [2022-01-31 22:58:51,401 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:58:51,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2022-01-31 22:58:51,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6f10061/0d4a42d87ee4457ab03e4b5955823b15/FLAGcec4e1229 [2022-01-31 22:58:51,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d6f10061/0d4a42d87ee4457ab03e4b5955823b15 [2022-01-31 22:58:51,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:58:51,421 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:58:51,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:51,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:58:51,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:58:51,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49dcf50e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51, skipping insertion in model container [2022-01-31 22:58:51,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:58:51,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:58:51,665 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_0681b.c[6391,6404] [2022-01-31 22:58:51,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:51,674 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:58:51,729 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_0681b.c[6391,6404] [2022-01-31 22:58:51,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:58:51,747 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:58:51,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51 WrapperNode [2022-01-31 22:58:51,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:58:51,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:58:51,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:58:51,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:58:51,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:58:51,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:58:51,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:58:51,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:58:51,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (1/1) ... [2022-01-31 22:58:51,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:58:51,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:58:51,860 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 22:58:51,881 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 22:58:51,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:58:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:58:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:58:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-01-31 22:58:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-01-31 22:58:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-01-31 22:58:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-01-31 22:58:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:58:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:58:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:58:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:58:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:58:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:58:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-01-31 22:58:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:58:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:58:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:58:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:58:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-01-31 22:58:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:58:52,032 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:58:52,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:58:52,372 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:58:52,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:58:52,382 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2022-01-31 22:58:52,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:52 BoogieIcfgContainer [2022-01-31 22:58:52,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:58:52,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:58:52,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:58:52,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:58:52,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:58:51" (1/3) ... [2022-01-31 22:58:52,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2d2465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:52, skipping insertion in model container [2022-01-31 22:58:52,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:58:51" (2/3) ... [2022-01-31 22:58:52,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2d2465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:58:52, skipping insertion in model container [2022-01-31 22:58:52,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:58:52" (3/3) ... [2022-01-31 22:58:52,391 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2022-01-31 22:58:52,395 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:58:52,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:58:52,435 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:58:52,440 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 22:58:52,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:58:52,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 94 states have (on average 1.627659574468085) internal successors, (153), 95 states have internal predecessors, (153), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-01-31 22:58:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-01-31 22:58:52,471 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:52,472 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 22:58:52,472 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:52,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:52,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1160092900, now seen corresponding path program 1 times [2022-01-31 22:58:52,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:52,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68482108] [2022-01-31 22:58:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:52,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:52,521 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:58:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:58:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:58:52,775 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 22:58:52,776 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:58:52,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68482108] [2022-01-31 22:58:52,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [68482108] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:58:52,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:58:52,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:58:52,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293590376] [2022-01-31 22:58:52,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:58:52,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:58:52,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:58:52,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:58:52,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:58:52,814 INFO L87 Difference]: Start difference. First operand has 110 states, 94 states have (on average 1.627659574468085) internal successors, (153), 95 states have internal predecessors, (153), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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 22:58:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:58:53,243 INFO L93 Difference]: Finished difference Result 212 states and 335 transitions. [2022-01-31 22:58:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:58:53,246 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 22:58:53,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:58:53,255 INFO L225 Difference]: With dead ends: 212 [2022-01-31 22:58:53,256 INFO L226 Difference]: Without dead ends: 106 [2022-01-31 22:58:53,260 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 22:58:53,263 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 133 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-31 22:58:53,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 140 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-31 22:58:53,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-01-31 22:58:53,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-01-31 22:58:53,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 8 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-01-31 22:58:53,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 146 transitions. [2022-01-31 22:58:53,323 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 146 transitions. Word has length 19 [2022-01-31 22:58:53,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:58:53,324 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 146 transitions. [2022-01-31 22:58:53,324 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 22:58:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 146 transitions. [2022-01-31 22:58:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 22:58:53,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:58:53,325 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 22:58:53,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:58:53,326 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:58:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:58:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1249585093, now seen corresponding path program 1 times [2022-01-31 22:58:53,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:58:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676616411] [2022-01-31 22:58:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:58:53,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:58:53,330 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:58:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:53,378 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:58:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:58:53,440 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:58:53,440 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:58:53,443 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:58:53,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:58:53,447 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:58:53,449 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:58:53,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:58:53 BoogieIcfgContainer [2022-01-31 22:58:53,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:58:53,472 INFO L158 Benchmark]: Toolchain (without parser) took 2050.14ms. Allocated memory was 187.7MB in the beginning and 246.4MB in the end (delta: 58.7MB). Free memory was 130.6MB in the beginning and 108.0MB in the end (delta: 22.5MB). Peak memory consumption was 81.6MB. Max. memory is 8.0GB. [2022-01-31 22:58:53,473 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 187.7MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:58:53,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.54ms. Allocated memory was 187.7MB in the beginning and 246.4MB in the end (delta: 58.7MB). Free memory was 130.4MB in the beginning and 215.0MB in the end (delta: -84.5MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. [2022-01-31 22:58:53,477 INFO L158 Benchmark]: Boogie Preprocessor took 60.34ms. Allocated memory is still 246.4MB. Free memory was 215.0MB in the beginning and 211.8MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:53,479 INFO L158 Benchmark]: RCFGBuilder took 574.12ms. Allocated memory is still 246.4MB. Free memory was 211.8MB in the beginning and 188.2MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-01-31 22:58:53,479 INFO L158 Benchmark]: TraceAbstraction took 1086.11ms. Allocated memory is still 246.4MB. Free memory was 187.7MB in the beginning and 108.0MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2022-01-31 22:58:53,481 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 187.7MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 325.54ms. Allocated memory was 187.7MB in the beginning and 246.4MB in the end (delta: 58.7MB). Free memory was 130.4MB in the beginning and 215.0MB in the end (delta: -84.5MB). Peak memory consumption was 11.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.34ms. Allocated memory is still 246.4MB. Free memory was 215.0MB in the beginning and 211.8MB in the end (delta: 3.2MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 574.12ms. Allocated memory is still 246.4MB. Free memory was 211.8MB in the beginning and 188.2MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1086.11ms. Allocated memory is still 246.4MB. Free memory was 187.7MB in the beginning and 108.0MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. 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: 270]: 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 266, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. 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; [L265] double x = 0.0; [L266] double y = -0.0; [L267] 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; [L267] RET, EXPR __ieee754_atan2(y, x) [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L270] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 138 mSDtfsCounter, 150 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=110occurred 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 22:58:53,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...