/usr/bin/java -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 0.1.25-86f66a4 [2020-07-07 12:59:43,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:59:43,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:59:43,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:59:43,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:59:43,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:59:43,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:59:43,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:59:43,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:59:43,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:59:43,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:59:43,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:59:43,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:59:43,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:59:43,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:59:43,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:59:43,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:59:43,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:59:43,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:59:43,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:59:43,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:59:43,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:59:43,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:59:43,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:59:43,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:59:43,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:59:43,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:59:43,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:59:43,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:59:43,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:59:43,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:59:43,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:59:43,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:59:43,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:59:43,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:59:43,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:59:43,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:59:43,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:59:43,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:59:43,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:59:43,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:59:43,622 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:59:43,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:59:43,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:59:43,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:59:43,632 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:59:43,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:59:43,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:59:43,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:59:43,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:59:43,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:59:43,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:59:43,635 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:59:43,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:59:43,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:59:43,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:59:43,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:59:43,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:59:43,636 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:59:43,636 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:59:43,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:59:43,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:59:43,923 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:59:43,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:59:43,925 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:59:43,926 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-07 12:59:43,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/341e228a2/ba9e846cb74d4db5b8d4dea781d7158d/FLAG69f43e2e2 [2020-07-07 12:59:44,397 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:59:44,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/sqrt_poly2.c [2020-07-07 12:59:44,405 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/341e228a2/ba9e846cb74d4db5b8d4dea781d7158d/FLAG69f43e2e2 [2020-07-07 12:59:44,773 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/341e228a2/ba9e846cb74d4db5b8d4dea781d7158d [2020-07-07 12:59:44,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:59:44,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:59:44,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:59:44,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:59:44,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:59:44,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:59:44" (1/1) ... [2020-07-07 12:59:44,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd9ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:44, skipping insertion in model container [2020-07-07 12:59:44,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:59:44" (1/1) ... [2020-07-07 12:59:44,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:59:44,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:59:45,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:59:45,047 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:59:45,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:59:45,193 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:59:45,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45 WrapperNode [2020-07-07 12:59:45,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:59:45,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:59:45,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:59:45,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:59:45,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (1/1) ... [2020-07-07 12:59:45,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:59:45,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:59:45,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:59:45,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:59:45,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (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 [2020-07-07 12:59:45,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:59:45,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:59:45,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 12:59:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-07 12:59:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2020-07-07 12:59:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:59:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:59:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-07 12:59:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:59:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:59:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-07 12:59:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:59:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:59:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:59:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:59:45,744 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:59:45,745 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 12:59:45,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:59:45 BoogieIcfgContainer [2020-07-07 12:59:45,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:59:45,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:59:45,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:59:45,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:59:45,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:59:44" (1/3) ... [2020-07-07 12:59:45,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b753eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:59:45, skipping insertion in model container [2020-07-07 12:59:45,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:59:45" (2/3) ... [2020-07-07 12:59:45,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b753eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:59:45, skipping insertion in model container [2020-07-07 12:59:45,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:59:45" (3/3) ... [2020-07-07 12:59:45,758 INFO L109 eAbstractionObserver]: Analyzing ICFG sqrt_poly2.c [2020-07-07 12:59:45,768 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:59:45,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:59:45,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:59:45,806 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:59:45,806 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:59:45,807 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:59:45,807 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:59:45,807 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:59:45,807 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:59:45,807 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:59:45,807 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:59:45,822 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-07-07 12:59:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-07 12:59:45,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:59:45,836 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] [2020-07-07 12:59:45,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:59:45,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:59:45,843 INFO L82 PathProgramCache]: Analyzing trace with hash 284093711, now seen corresponding path program 1 times [2020-07-07 12:59:45,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:59:45,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076661309] [2020-07-07 12:59:45,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:59:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:59:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:59:46,225 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:59:46,227 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:59:46,227 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:59:46,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:59:46,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:59:46 BoogieIcfgContainer [2020-07-07 12:59:46,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:59:46,267 INFO L168 Benchmark]: Toolchain (without parser) took 1476.55 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.8 MB in the beginning and 137.0 MB in the end (delta: -35.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,268 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.78 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 180.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,272 INFO L168 Benchmark]: Boogie Preprocessor took 75.29 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 179.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,274 INFO L168 Benchmark]: RCFGBuilder took 479.53 ms. Allocated memory is still 202.4 MB. Free memory was 178.4 MB in the beginning and 157.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,275 INFO L168 Benchmark]: TraceAbstraction took 512.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 137.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:59:46,287 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 403.78 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 180.8 MB in the end (delta: -79.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 75.29 ms. Allocated memory is still 202.4 MB. Free memory was 180.8 MB in the beginning and 179.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.53 ms. Allocated memory is still 202.4 MB. Free memory was 178.4 MB in the beginning and 157.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 512.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.8 MB in the beginning and 137.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 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: 0.4s, 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...