/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:12:58,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:12:58,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:12:58,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:12:58,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:12:58,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:12:58,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:12:58,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:12:58,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:12:58,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:12:58,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:12:58,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:12:58,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:12:58,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:12:58,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:12:58,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:12:58,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:12:58,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:12:58,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:12:58,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:12:58,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:12:58,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:12:58,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:12:58,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:12:58,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:12:58,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:12:58,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:12:58,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:12:58,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:12:58,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:12:58,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:12:58,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:12:58,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:12:58,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:12:58,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:12:58,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:12:58,872 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:12:58,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:12:58,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:12:58,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:12:58,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:12:58,875 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:12:58,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:12:58,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:12:58,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:12:58,886 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:12:58,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:12:58,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:12:58,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:12:58,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:12:58,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:12:58,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:12:58,888 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:12:58,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:12:58,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:12:58,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:12:58,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:12:58,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:12:58,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:12:58,889 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:12:59,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:12:59,271 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:12:59,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:12:59,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:12:59,277 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:12:59,278 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-18 00:12:59,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5f4f316/893b1c0f10b7476f8fe145ae3f3f5977/FLAG10b16851c [2020-07-18 00:12:59,811 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:12:59,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-18 00:12:59,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5f4f316/893b1c0f10b7476f8fe145ae3f3f5977/FLAG10b16851c [2020-07-18 00:13:00,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f5f4f316/893b1c0f10b7476f8fe145ae3f3f5977 [2020-07-18 00:13:00,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:13:00,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:13:00,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:00,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:13:00,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:13:00,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ce2c956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00, skipping insertion in model container [2020-07-18 00:13:00,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:13:00,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:13:00,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:00,590 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:13:00,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:13:00,772 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:13:00,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00 WrapperNode [2020-07-18 00:13:00,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:13:00,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:13:00,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:13:00,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:13:00,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... [2020-07-18 00:13:00,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:13:00,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:13:00,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:13:00,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:13:00,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:13:00,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:13:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:13:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:13:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:13:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2020-07-18 00:13:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:13:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2020-07-18 00:13:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-18 00:13:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-18 00:13:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:13:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:13:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-18 00:13:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:13:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:13:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:13:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:13:01,531 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:13:01,532 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-18 00:13:01,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:01 BoogieIcfgContainer [2020-07-18 00:13:01,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:13:01,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:13:01,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:13:01,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:13:01,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:13:00" (1/3) ... [2020-07-18 00:13:01,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6dfadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:01, skipping insertion in model container [2020-07-18 00:13:01,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:13:00" (2/3) ... [2020-07-18 00:13:01,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6dfadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:13:01, skipping insertion in model container [2020-07-18 00:13:01,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:13:01" (3/3) ... [2020-07-18 00:13:01,553 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2020-07-18 00:13:01,580 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:13:01,600 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:13:01,636 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:13:01,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:13:01,693 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:13:01,694 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:13:01,694 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:13:01,702 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:13:01,702 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:13:01,703 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:13:01,703 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:13:01,742 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-07-18 00:13:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-18 00:13:01,768 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:13:01,770 INFO L422 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:13:01,771 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:13:01,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:13:01,778 INFO L82 PathProgramCache]: Analyzing trace with hash 284093711, now seen corresponding path program 1 times [2020-07-18 00:13:01,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:13:01,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865084984] [2020-07-18 00:13:01,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:13:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-18 00:13:02,204 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:13:02,206 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-18 00:13:02,207 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-18 00:13:02,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:13:02,237 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-18 00:13:02,237 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:02,238 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-18 00:13:02,238 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-18 00:13:02,238 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-18 00:13:02,239 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2020-07-18 00:13:02,239 WARN L170 areAnnotationChecker]: sqrt_customENTRY has no Hoare annotation [2020-07-18 00:13:02,239 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:02,239 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:02,239 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L56 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-18 00:13:02,240 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-18 00:13:02,241 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-18 00:13:02,241 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-18 00:13:02,241 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2020-07-18 00:13:02,242 WARN L170 areAnnotationChecker]: L10-3 has no Hoare annotation [2020-07-18 00:13:02,242 WARN L170 areAnnotationChecker]: L58 has no Hoare annotation [2020-07-18 00:13:02,242 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2020-07-18 00:13:02,242 WARN L170 areAnnotationChecker]: L12-1 has no Hoare annotation [2020-07-18 00:13:02,243 WARN L170 areAnnotationChecker]: L12-3 has no Hoare annotation [2020-07-18 00:13:02,243 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-18 00:13:02,243 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-18 00:13:02,243 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2020-07-18 00:13:02,244 WARN L170 areAnnotationChecker]: L58-1 has no Hoare annotation [2020-07-18 00:13:02,244 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-18 00:13:02,244 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-18 00:13:02,244 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-18 00:13:02,245 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-18 00:13:02,245 WARN L170 areAnnotationChecker]: L59-1 has no Hoare annotation [2020-07-18 00:13:02,245 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-18 00:13:02,245 WARN L170 areAnnotationChecker]: L59 has no Hoare annotation [2020-07-18 00:13:02,245 WARN L170 areAnnotationChecker]: L63-1 has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: L33-1 has no Hoare annotation [2020-07-18 00:13:02,246 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: L61-1 has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-18 00:13:02,247 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: L35-3 has no Hoare annotation [2020-07-18 00:13:02,248 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L36-1 has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L37-1 has no Hoare annotation [2020-07-18 00:13:02,249 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-18 00:13:02,250 WARN L170 areAnnotationChecker]: L37-3 has no Hoare annotation [2020-07-18 00:13:02,250 WARN L170 areAnnotationChecker]: L37-4 has no Hoare annotation [2020-07-18 00:13:02,250 WARN L170 areAnnotationChecker]: L37-5 has no Hoare annotation [2020-07-18 00:13:02,250 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-18 00:13:02,250 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-18 00:13:02,251 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-18 00:13:02,251 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-18 00:13:02,251 WARN L170 areAnnotationChecker]: L45 has no Hoare annotation [2020-07-18 00:13:02,251 WARN L170 areAnnotationChecker]: L42-1 has no Hoare annotation [2020-07-18 00:13:02,252 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2020-07-18 00:13:02,252 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-18 00:13:02,252 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-18 00:13:02,252 WARN L170 areAnnotationChecker]: L49 has no Hoare annotation [2020-07-18 00:13:02,252 WARN L170 areAnnotationChecker]: L49-1 has no Hoare annotation [2020-07-18 00:13:02,253 WARN L170 areAnnotationChecker]: L49-2 has no Hoare annotation [2020-07-18 00:13:02,253 WARN L170 areAnnotationChecker]: L49-3 has no Hoare annotation [2020-07-18 00:13:02,253 WARN L170 areAnnotationChecker]: L49-4 has no Hoare annotation [2020-07-18 00:13:02,253 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-18 00:13:02,253 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-18 00:13:02,254 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-18 00:13:02,254 WARN L170 areAnnotationChecker]: sqrt_customFINAL has no Hoare annotation [2020-07-18 00:13:02,254 WARN L170 areAnnotationChecker]: sqrt_customEXIT has no Hoare annotation [2020-07-18 00:13:02,254 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:13:02,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:13:02 BoogieIcfgContainer [2020-07-18 00:13:02,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:13:02,263 INFO L168 Benchmark]: Toolchain (without parser) took 2062.35 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 106.2 MB in the beginning and 122.7 MB in the end (delta: -16.5 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,264 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 125.0 MB in the beginning and 124.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.64 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 105.8 MB in the beginning and 182.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,266 INFO L168 Benchmark]: Boogie Preprocessor took 92.52 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 179.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,267 INFO L168 Benchmark]: RCFGBuilder took 670.34 ms. Allocated memory is still 203.9 MB. Free memory was 179.3 MB in the beginning and 148.5 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,268 INFO L168 Benchmark]: TraceAbstraction took 721.76 ms. Allocated memory is still 203.9 MB. Free memory was 147.9 MB in the beginning and 122.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:13:02,272 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 125.0 MB in the beginning and 124.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 569.64 ms. Allocated memory was 148.4 MB in the beginning and 203.9 MB in the end (delta: 55.6 MB). Free memory was 105.8 MB in the beginning and 182.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.52 ms. Allocated memory is still 203.9 MB. Free memory was 182.6 MB in the beginning and 179.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 670.34 ms. Allocated memory is still 203.9 MB. Free memory was 179.3 MB in the beginning and 148.5 MB in the end (delta: 30.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 721.76 ms. Allocated memory is still 203.9 MB. Free memory was 147.9 MB in the beginning and 122.7 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 36, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 63. Possible FailurePath: [L15] double C0 = 1.414213538; [L16] double C1 = 0.229761391; [L17] double C2 = 1.296735525; [L18] double C3 = -0.901098370; [L19] double C4 = 0.493553400; [L20] double C5 = -0.118958666; [L56] double x,y; [L58] x = __VERIFIER_nondet_double() [L59] CALL assume_abort_if_not(x >= 1. && x <= 1e10) [L10] COND FALSE !(!cond) [L59] RET assume_abort_if_not(x >= 1. && x <= 1e10) [L61] CALL, EXPR sqrt_custom(x) [L29] union u x; [L30] double r; [L31] int exp; [L33] x.d = a [L35] EXPR x.i[0] [L35] exp = (x.i[0] & 0x7FF00000) >> 20 [L36] EXPR x.i[0] [L36] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L37] EXPR x.d [L37] r = x.d * 0.5 [L39] r = C1+C2+(C3+(C4+C5*r)*r)*r [L41] COND FALSE !(exp % 2 == 0) [L45] r = r * C0 [L48] x.i[0] = (exp/2 + 511) << 20 [L49] EXPR x.d [L49] r = r * x.d [L51] return r; [L51] return r; [L61] RET, EXPR sqrt_custom(x) [L61] y = sqrt_custom(x) [L63] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) [L12] COND TRUE !(cond) [L12] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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 Received shutdown request...