/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/float_req_bl_0250b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 23:00:47,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 23:00:47,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 23:00:47,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-31 23:00:47,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 23:00:47,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 23:00:47,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 23:00:47,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 23:00:47,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 23:00:47,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 23:00:47,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 23:00:47,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 23:00:47,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 23:00:47,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 23:00:47,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 23:00:47,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 23:00:47,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-31 23:00:47,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 23:00:47,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 23:00:47,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 23:00:47,667 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 23:00:47,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 23:00:47,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 23:00:47,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 23:00:47,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 23:00:47,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 23:00:47,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 23:00:47,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 23:00:47,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 23:00:47,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 23:00:47,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:47,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 23:00:47,682 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 23:00:47,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 23:00:47,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 23:00:47,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 23:00:47,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 23:00:47,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 23:00:47,896 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 23:00:47,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c [2022-01-31 23:00:47,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7515df912/6213ffe227734acc922d4aadab8995f5/FLAGaaa66f004 [2022-01-31 23:00:48,327 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 23:00:48,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c [2022-01-31 23:00:48,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7515df912/6213ffe227734acc922d4aadab8995f5/FLAGaaa66f004 [2022-01-31 23:00:48,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7515df912/6213ffe227734acc922d4aadab8995f5 [2022-01-31 23:00:48,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 23:00:48,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 23:00:48,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:48,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 23:00:48,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 23:00:48,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:48" (1/1) ... [2022-01-31 23:00:48,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60455c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:48, skipping insertion in model container [2022-01-31 23:00:48,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 11:00:48" (1/1) ... [2022-01-31 23:00:48,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 23:00:48,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 23:00:48,967 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c[5435,5448] [2022-01-31 23:00:48,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:48,978 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 23:00:49,036 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250b.c[5435,5448] [2022-01-31 23:00:49,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 23:00:49,062 INFO L208 MainTranslator]: Completed translation [2022-01-31 23:00:49,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49 WrapperNode [2022-01-31 23:00:49,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 23:00:49,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 23:00:49,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 23:00:49,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 23:00:49,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 23:00:49,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 23:00:49,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 23:00:49,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 23:00:49,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (1/1) ... [2022-01-31 23:00:49,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 23:00:49,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 23:00:49,129 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 23:00:49,144 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 23:00:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 23:00:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 23:00:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 23:00:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2022-01-31 23:00:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-01-31 23:00:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2022-01-31 23:00:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-01-31 23:00:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2022-01-31 23:00:49,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 23:00:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 23:00:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 23:00:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 23:00:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 23:00:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2022-01-31 23:00:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2022-01-31 23:00:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 23:00:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 23:00:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 23:00:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 23:00:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 23:00:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 23:00:49,255 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 23:00:49,256 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 23:00:49,559 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 23:00:49,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 23:00:49,564 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-01-31 23:00:49,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:49 BoogieIcfgContainer [2022-01-31 23:00:49,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 23:00:49,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 23:00:49,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 23:00:49,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 23:00:49,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 11:00:48" (1/3) ... [2022-01-31 23:00:49,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e12448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:49, skipping insertion in model container [2022-01-31 23:00:49,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 11:00:49" (2/3) ... [2022-01-31 23:00:49,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e12448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 11:00:49, skipping insertion in model container [2022-01-31 23:00:49,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 11:00:49" (3/3) ... [2022-01-31 23:00:49,576 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b.c [2022-01-31 23:00:49,580 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 23:00:49,580 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 23:00:49,621 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 23:00:49,628 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 23:00:49,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 23:00:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 63 states have internal predecessors, (98), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-01-31 23:00:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-01-31 23:00:49,656 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:49,656 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 23:00:49,657 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:49,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2000061552, now seen corresponding path program 1 times [2022-01-31 23:00:49,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:49,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312911349] [2022-01-31 23:00:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:49,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:49,710 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 23:00:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 23:00:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:49,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-01-31 23:00:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 23:00:49,927 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 23:00:49,928 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 23:00:49,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312911349] [2022-01-31 23:00:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [312911349] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 23:00:49,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 23:00:49,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 23:00:49,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782143999] [2022-01-31 23:00:49,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 23:00:49,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 23:00:49,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 23:00:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 23:00:49,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 23:00:49,952 INFO L87 Difference]: Start difference. First operand has 76 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 63 states have internal predecessors, (98), 6 states have call successors, (6), 6 states have call predecessors, (6), 6 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:00:50,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 23:00:50,211 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2022-01-31 23:00:50,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 23:00:50,213 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), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-01-31 23:00:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 23:00:50,220 INFO L225 Difference]: With dead ends: 144 [2022-01-31 23:00:50,221 INFO L226 Difference]: Without dead ends: 72 [2022-01-31 23:00:50,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 23:00:50,229 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 82 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-31 23:00:50,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 87 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-31 23:00:50,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-01-31 23:00:50,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-01-31 23:00:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.3) internal successors, (78), 60 states have internal predecessors, (78), 6 states have call successors, (6), 6 states have call predecessors, (6), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 23:00:50,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2022-01-31 23:00:50,285 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2022-01-31 23:00:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 23:00:50,285 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2022-01-31 23:00:50,286 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), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-01-31 23:00:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2022-01-31 23:00:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-01-31 23:00:50,288 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 23:00:50,288 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, 1] [2022-01-31 23:00:50,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 23:00:50,289 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 23:00:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 23:00:50,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1828033367, now seen corresponding path program 1 times [2022-01-31 23:00:50,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 23:00:50,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660069273] [2022-01-31 23:00:50,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 23:00:50,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 23:00:50,298 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 23:00:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:50,358 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 23:00:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 23:00:50,425 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 23:00:50,425 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 23:00:50,428 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 23:00:50,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 23:00:50,433 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 23:00:50,435 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 23:00:50,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 11:00:50 BoogieIcfgContainer [2022-01-31 23:00:50,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 23:00:50,451 INFO L158 Benchmark]: Toolchain (without parser) took 1704.76ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 141.9MB in the beginning and 136.5MB in the end (delta: 5.5MB). Peak memory consumption was 65.2MB. Max. memory is 8.0GB. [2022-01-31 23:00:50,451 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 158.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 23:00:50,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.01ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 141.7MB in the beginning and 225.1MB in the end (delta: -83.4MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. [2022-01-31 23:00:50,454 INFO L158 Benchmark]: Boogie Preprocessor took 32.44ms. Allocated memory is still 255.9MB. Free memory was 225.1MB in the beginning and 222.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-31 23:00:50,456 INFO L158 Benchmark]: RCFGBuilder took 470.01ms. Allocated memory is still 255.9MB. Free memory was 222.4MB in the beginning and 202.0MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-01-31 23:00:50,456 INFO L158 Benchmark]: TraceAbstraction took 882.87ms. Allocated memory is still 255.9MB. Free memory was 201.5MB in the beginning and 136.5MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. [2022-01-31 23:00:50,460 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 196.1MB. Free memory is still 158.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 316.01ms. Allocated memory was 196.1MB in the beginning and 255.9MB in the end (delta: 59.8MB). Free memory was 141.7MB in the beginning and 225.1MB in the end (delta: -83.4MB). Peak memory consumption was 8.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.44ms. Allocated memory is still 255.9MB. Free memory was 225.1MB in the beginning and 222.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 470.01ms. Allocated memory is still 255.9MB. Free memory was 222.4MB in the beginning and 202.0MB in the end (delta: 20.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 882.87ms. Allocated memory is still 255.9MB. Free memory was 201.5MB in the beginning and 136.5MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of bitwiseAnd at line 163, overapproximation of someUnaryFLOAToperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 166. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L62] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L145-L153] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L230] float x = -1.0f / 0.0f; [L231] CALL, EXPR __ieee754_asinf(x) [L156] float t, w, p, q, c, r, s; [L157] __int32_t hx, ix; [L159] ieee_float_shape_type gf_u; [L160] gf_u.value = (x) [L161] EXPR gf_u.word [L161] (hx) = gf_u.word [L163] ix = hx & 0x7fffffff [L164] COND TRUE ix == 0x3f800000 [L166] return x * pio2_hi_asin + x * pio2_lo_asin; [L231] RET, EXPR __ieee754_asinf(x) [L231] float res = __ieee754_asinf(x); [L234] CALL, EXPR isnan_float(res) [L60] return x != x; [L234] RET, EXPR isnan_float(res) [L234] COND TRUE !isnan_float(res) [L235] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 90 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 85 mSDtfsCounter, 90 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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 23:00:50,489 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...