/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_0663a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:18:18,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:18:18,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:18:18,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:18:18,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:18:18,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:18:18,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:18:18,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:18:18,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:18:18,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:18:18,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:18:18,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:18:18,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:18:18,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:18:18,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:18:18,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:18:18,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:18:18,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:18:18,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:18:18,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:18:18,798 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 00:18:18,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:18:18,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:18:18,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:18:18,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:18:18,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:18:18,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:18:18,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:18:18,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:18:18,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:18:18,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:18,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:18:18,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:18:18,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:18:18,813 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:18:18,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:18:19,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:18:19,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:18:19,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:18:19,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:18:19,050 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:18:19,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2022-02-01 00:18:19,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a1a0a51/09973a38e73f4763b0e3b3fada8f8500/FLAGf53b16dd9 [2022-02-01 00:18:19,494 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:18:19,495 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2022-02-01 00:18:19,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a1a0a51/09973a38e73f4763b0e3b3fada8f8500/FLAGf53b16dd9 [2022-02-01 00:18:19,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a1a0a51/09973a38e73f4763b0e3b3fada8f8500 [2022-02-01 00:18:19,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:18:19,514 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:18:19,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:19,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:18:19,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:18:19,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cab427c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19, skipping insertion in model container [2022-02-01 00:18:19,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:18:19,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:18:19,722 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_0663a.c[6220,6233] [2022-02-01 00:18:19,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:19,732 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:18:19,765 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_0663a.c[6220,6233] [2022-02-01 00:18:19,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:19,784 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:18:19,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19 WrapperNode [2022-02-01 00:18:19,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:19,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:18:19,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:18:19,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:18:19,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:18:19,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:18:19,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:18:19,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:18:19,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (1/1) ... [2022-02-01 00:18:19,895 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:18:19,923 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 00:18:19,925 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 00:18:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:18:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:18:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:18:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-01 00:18:19,960 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-02-01 00:18:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-02-01 00:18:19,961 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:18:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:18:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:18:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:18:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:18:19,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-02-01 00:18:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-01 00:18:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:18:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:18:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:18:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:18:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:18:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:18:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-02-01 00:18:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-02-01 00:18:19,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:18:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:18:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:18:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:18:19,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:18:20,109 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:18:20,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:18:20,438 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:18:20,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:18:20,443 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2022-02-01 00:18:20,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:20 BoogieIcfgContainer [2022-02-01 00:18:20,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:18:20,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:18:20,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:18:20,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:18:20,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:19" (1/3) ... [2022-02-01 00:18:20,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3415dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:20, skipping insertion in model container [2022-02-01 00:18:20,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:19" (2/3) ... [2022-02-01 00:18:20,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3415dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:20, skipping insertion in model container [2022-02-01 00:18:20,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:20" (3/3) ... [2022-02-01 00:18:20,450 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2022-02-01 00:18:20,454 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:18:20,454 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:18:20,483 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:18:20,488 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 00:18:20,488 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:18:20,501 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) [2022-02-01 00:18:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-01 00:18:20,517 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:20,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:20,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:20,525 INFO L85 PathProgramCache]: Analyzing trace with hash 310709798, now seen corresponding path program 1 times [2022-02-01 00:18:20,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385902848] [2022-02-01 00:18:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:20,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:20,575 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:20,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-01 00:18:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:20,784 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 00:18:20,785 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:20,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385902848] [2022-02-01 00:18:20,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [385902848] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:20,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:20,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:18:20,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482383281] [2022-02-01 00:18:20,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:20,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:18:20,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:20,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:18:20,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:18:20,819 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) [2022-02-01 00:18:21,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:21,219 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2022-02-01 00:18:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:18:21,222 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 [2022-02-01 00:18:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:21,230 INFO L225 Difference]: With dead ends: 200 [2022-02-01 00:18:21,230 INFO L226 Difference]: Without dead ends: 98 [2022-02-01 00:18:21,234 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 00:18:21,237 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 [2022-02-01 00:18:21,237 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] [2022-02-01 00:18:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-02-01 00:18:21,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-02-01 00:18:21,294 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) [2022-02-01 00:18:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2022-02-01 00:18:21,301 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2022-02-01 00:18:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:21,301 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2022-02-01 00:18:21,301 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) [2022-02-01 00:18:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2022-02-01 00:18:21,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-01 00:18:21,303 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:21,303 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] [2022-02-01 00:18:21,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:18:21,304 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:21,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2040164497, now seen corresponding path program 1 times [2022-02-01 00:18:21,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:21,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438594896] [2022-02-01 00:18:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:21,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:21,315 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:21,392 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:18:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:21,469 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:18:21,470 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:18:21,474 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:18:21,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:18:21,478 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-01 00:18:21,480 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:18:21,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:21 BoogieIcfgContainer [2022-02-01 00:18:21,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:18:21,497 INFO L158 Benchmark]: Toolchain (without parser) took 1983.40ms. Allocated memory is still 208.7MB. Free memory was 156.8MB in the beginning and 73.4MB in the end (delta: 83.3MB). Peak memory consumption was 83.2MB. Max. memory is 8.0GB. [2022-02-01 00:18:21,498 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:21,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.86ms. Allocated memory is still 208.7MB. Free memory was 156.5MB in the beginning and 178.7MB in the end (delta: -22.2MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-02-01 00:18:21,500 INFO L158 Benchmark]: Boogie Preprocessor took 69.06ms. Allocated memory is still 208.7MB. Free memory was 178.7MB in the beginning and 176.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-01 00:18:21,501 INFO L158 Benchmark]: RCFGBuilder took 587.08ms. Allocated memory is still 208.7MB. Free memory was 176.2MB in the beginning and 153.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. [2022-02-01 00:18:21,502 INFO L158 Benchmark]: TraceAbstraction took 1050.63ms. Allocated memory is still 208.7MB. Free memory was 153.1MB in the beginning and 73.4MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 8.0GB. [2022-02-01 00:18:21,506 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 208.7MB. Free memory is still 173.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 267.86ms. Allocated memory is still 208.7MB. Free memory was 156.5MB in the beginning and 178.7MB in the end (delta: -22.2MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.06ms. Allocated memory is still 208.7MB. Free memory was 178.7MB in the beginning and 176.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 587.08ms. Allocated memory is still 208.7MB. Free memory was 176.2MB in the beginning and 153.6MB in the end (delta: 22.5MB). Peak memory consumption was 23.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1050.63ms. Allocated memory is still 208.7MB. Free memory was 153.1MB in the beginning and 73.4MB 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: 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 253, 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: 1.0s, 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: 0.1s 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 00:18:21,562 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...