/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_0981.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-01-31 22:59:41,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-31 22:59:41,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-31 22:59:41,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-31 22:59:41,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-31 22:59:41,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-31 22:59:41,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-31 22:59:41,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-31 22:59:41,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-31 22:59:41,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-31 22:59:41,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-31 22:59:41,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-31 22:59:41,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-31 22:59:41,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-31 22:59:41,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-31 22:59:41,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-31 22:59:41,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-31 22:59:41,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-31 22:59:41,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-31 22:59:41,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-31 22:59:41,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-31 22:59:41,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-31 22:59:41,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-31 22:59:41,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-31 22:59:41,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-31 22:59:41,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-31 22:59:41,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-31 22:59:41,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-31 22:59:41,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-31 22:59:41,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-31 22:59:41,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-31 22:59:41,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-31 22:59:41,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-31 22:59:41,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-31 22:59:41,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-31 22:59:41,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-31 22:59:41,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-31 22:59:41,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-31 22:59:41,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-31 22:59:41,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-31 22:59:41,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-31 22:59:41,478 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 22:59:41,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-31 22:59:41,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-31 22:59:41,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-31 22:59:41,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-31 22:59:41,494 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-31 22:59:41,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-31 22:59:41,494 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-31 22:59:41,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:41,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-31 22:59:41,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-01-31 22:59:41,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-31 22:59:41,496 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-01-31 22:59:41,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-31 22:59:41,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-31 22:59:41,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-31 22:59:41,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-31 22:59:41,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-31 22:59:41,763 INFO L275 PluginConnector]: CDTParser initialized [2022-01-31 22:59:41,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0981.c [2022-01-31 22:59:41,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c3545a6/54caf363bc6d4c9ab86c43aad2d87049/FLAG66bfaf9cb [2022-01-31 22:59:42,267 INFO L306 CDTParser]: Found 1 translation units. [2022-01-31 22:59:42,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0981.c [2022-01-31 22:59:42,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c3545a6/54caf363bc6d4c9ab86c43aad2d87049/FLAG66bfaf9cb [2022-01-31 22:59:42,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76c3545a6/54caf363bc6d4c9ab86c43aad2d87049 [2022-01-31 22:59:42,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-31 22:59:42,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-31 22:59:42,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:42,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-31 22:59:42,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-31 22:59:42,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21afe822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42, skipping insertion in model container [2022-01-31 22:59:42,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-31 22:59:42,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-31 22:59:42,527 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_0981.c[4783,4796] [2022-01-31 22:59:42,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:42,536 INFO L203 MainTranslator]: Completed pre-run [2022-01-31 22:59:42,572 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_0981.c[4783,4796] [2022-01-31 22:59:42,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-31 22:59:42,585 INFO L208 MainTranslator]: Completed translation [2022-01-31 22:59:42,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42 WrapperNode [2022-01-31 22:59:42,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-31 22:59:42,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-31 22:59:42,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-31 22:59:42,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-31 22:59:42,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-31 22:59:42,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-31 22:59:42,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-31 22:59:42,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-31 22:59:42,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (1/1) ... [2022-01-31 22:59:42,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-31 22:59:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-31 22:59:42,672 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 22:59:42,690 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 22:59:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-01-31 22:59:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-31 22:59:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-01-31 22:59:42,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2022-01-31 22:59:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10 [2022-01-31 22:59:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2022-01-31 22:59:42,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-01-31 22:59:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-01-31 22:59:42,704 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-01-31 22:59:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-01-31 22:59:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-31 22:59:42,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-01-31 22:59:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2022-01-31 22:59:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-31 22:59:42,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-01-31 22:59:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-31 22:59:42,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-31 22:59:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-31 22:59:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-01-31 22:59:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10 [2022-01-31 22:59:42,709 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2022-01-31 22:59:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-01-31 22:59:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-01-31 22:59:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-31 22:59:42,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-31 22:59:42,784 INFO L234 CfgBuilder]: Building ICFG [2022-01-31 22:59:42,785 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-31 22:59:43,099 INFO L275 CfgBuilder]: Performing block encoding [2022-01-31 22:59:43,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-31 22:59:43,105 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-31 22:59:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:43 BoogieIcfgContainer [2022-01-31 22:59:43,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-31 22:59:43,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-31 22:59:43,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-31 22:59:43,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-31 22:59:43,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 10:59:42" (1/3) ... [2022-01-31 22:59:43,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a77f5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:43, skipping insertion in model container [2022-01-31 22:59:43,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 10:59:42" (2/3) ... [2022-01-31 22:59:43,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a77f5d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 10:59:43, skipping insertion in model container [2022-01-31 22:59:43,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 10:59:43" (3/3) ... [2022-01-31 22:59:43,122 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2022-01-31 22:59:43,125 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-01-31 22:59:43,125 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-31 22:59:43,157 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-31 22:59:43,168 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 22:59:43,168 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-31 22:59:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 50 states have internal predecessors, (80), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-01-31 22:59:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-31 22:59:43,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:43,204 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, 1, 1] [2022-01-31 22:59:43,204 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:43,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:43,209 INFO L85 PathProgramCache]: Analyzing trace with hash -696107166, now seen corresponding path program 1 times [2022-01-31 22:59:43,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:43,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058466172] [2022-01-31 22:59:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:43,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:43,283 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-01-31 22:59:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-01-31 22:59:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-31 22:59:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-31 22:59:43,574 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 22:59:43,576 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-01-31 22:59:43,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058466172] [2022-01-31 22:59:43,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [1058466172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-31 22:59:43,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-31 22:59:43,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-31 22:59:43,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559216182] [2022-01-31 22:59:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-31 22:59:43,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-31 22:59:43,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-01-31 22:59:43,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-31 22:59:43,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-31 22:59:43,613 INFO L87 Difference]: Start difference. First operand has 61 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 50 states have internal predecessors, (80), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 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 22:59:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-31 22:59:43,928 INFO L93 Difference]: Finished difference Result 114 states and 174 transitions. [2022-01-31 22:59:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-31 22:59:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 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 24 [2022-01-31 22:59:43,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-31 22:59:43,938 INFO L225 Difference]: With dead ends: 114 [2022-01-31 22:59:43,938 INFO L226 Difference]: Without dead ends: 57 [2022-01-31 22:59:43,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 22:59:43,945 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 64 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-31 22:59:43,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 69 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-31 22:59:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-01-31 22:59:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-01-31 22:59:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 47 states have internal predecessors, (62), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-01-31 22:59:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 71 transitions. [2022-01-31 22:59:44,000 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 71 transitions. Word has length 24 [2022-01-31 22:59:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-31 22:59:44,001 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 71 transitions. [2022-01-31 22:59:44,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 2 states have internal predecessors, (17), 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 22:59:44,001 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 71 transitions. [2022-01-31 22:59:44,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-31 22:59:44,003 INFO L506 BasicCegarLoop]: Found error trace [2022-01-31 22:59:44,003 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, 1, 1, 1, 1] [2022-01-31 22:59:44,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-31 22:59:44,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-31 22:59:44,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-31 22:59:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash -243114879, now seen corresponding path program 1 times [2022-01-31 22:59:44,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-01-31 22:59:44,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031248600] [2022-01-31 22:59:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-31 22:59:44,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-31 22:59:44,011 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-01-31 22:59:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:44,119 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-31 22:59:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-31 22:59:44,206 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-01-31 22:59:44,207 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-31 22:59:44,209 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-31 22:59:44,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-31 22:59:44,214 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-31 22:59:44,217 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-31 22:59:44,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 10:59:44 BoogieIcfgContainer [2022-01-31 22:59:44,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-31 22:59:44,232 INFO L158 Benchmark]: Toolchain (without parser) took 1925.57ms. Allocated memory is still 179.3MB. Free memory was 130.4MB in the beginning and 68.6MB in the end (delta: 61.8MB). Peak memory consumption was 62.3MB. Max. memory is 8.0GB. [2022-01-31 22:59:44,232 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 179.3MB. Free memory was 147.2MB in the beginning and 147.2MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-31 22:59:44,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 179.3MB. Free memory was 130.2MB in the beginning and 153.4MB in the end (delta: -23.2MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2022-01-31 22:59:44,235 INFO L158 Benchmark]: Boogie Preprocessor took 45.97ms. Allocated memory is still 179.3MB. Free memory was 153.4MB in the beginning and 151.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-31 22:59:44,236 INFO L158 Benchmark]: RCFGBuilder took 473.43ms. Allocated memory is still 179.3MB. Free memory was 150.9MB in the beginning and 133.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-01-31 22:59:44,236 INFO L158 Benchmark]: TraceAbstraction took 1122.73ms. Allocated memory is still 179.3MB. Free memory was 132.5MB in the beginning and 68.6MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-01-31 22:59:44,238 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 179.3MB. Free memory was 147.2MB in the beginning and 147.2MB in the end (delta: 72.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 179.3MB. Free memory was 130.2MB in the beginning and 153.4MB in the end (delta: -23.2MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.97ms. Allocated memory is still 179.3MB. Free memory was 153.4MB in the beginning and 151.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 473.43ms. Allocated memory is still 179.3MB. Free memory was 150.9MB in the beginning and 133.1MB in the end (delta: 17.8MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1122.73ms. Allocated memory is still 179.3MB. Free memory was 132.5MB in the beginning and 68.6MB in the end (delta: 64.0MB). Peak memory consumption was 64.0MB. 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: 188]: 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 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133, overapproximation of bitwiseAnd at line 169. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; [L183] double x = 1.0 / 0.0; [L184] CALL, EXPR __ieee754_log10(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 [L131] COND TRUE hx < 0x00100000 [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; [L184] RET, EXPR __ieee754_log10(x) [L184] double res = __ieee754_log10(x); [L187] CALL, EXPR isinf_double(res) [L162] __int32_t hx, lx; [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L187] RET, EXPR isinf_double(res) [L187] COND TRUE !isinf_double(res) [L188] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 66 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 75 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 67 mSDtfsCounter, 75 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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 22:59:44,265 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...