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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/floats-cdfpl/newton_1_5.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:28:56,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:28:56,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:28:56,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:28:56,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:28:56,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:28:56,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:28:56,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:28:56,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:28:56,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:28:56,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:28:56,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:28:56,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:28:56,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:28:56,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:28:56,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:28:56,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:28:56,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:28:56,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:28:56,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:28:56,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:28:56,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:28:56,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:28:56,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:28:56,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:28:56,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:28:56,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:28:56,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:28:56,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:28:56,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:28:56,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:28:56,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:28:56,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:28:56,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:28:56,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:28:56,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:28:56,336 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:28:56,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:28:56,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:28:56,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:28:56,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:28:56,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:28:56,354 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:28:56,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:28:56,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:28:56,355 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:28:56,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:28:56,356 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:28:56,357 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:28:56,357 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:28:56,357 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:28:56,357 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:28:56,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:28:56,358 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:28:56,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:28:56,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:28:56,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:28:56,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:28:56,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:28:56,360 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:28:56,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:28:56,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:28:56,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:28:56,361 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:28:56,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:28:56,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:28:56,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:28:56,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:28:56,362 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:28:56,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:28:56,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:28:56,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:28:56,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:28:56,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:28:56,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:28:56,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:28:56,410 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:28:56,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/newton_1_5.i [2019-09-10 01:28:56,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5cc0640/766a263a3e814f6895d83c06e8e18037/FLAG2c099190f [2019-09-10 01:28:56,895 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:28:56,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/newton_1_5.i [2019-09-10 01:28:56,902 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5cc0640/766a263a3e814f6895d83c06e8e18037/FLAG2c099190f [2019-09-10 01:28:57,329 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5cc0640/766a263a3e814f6895d83c06e8e18037 [2019-09-10 01:28:57,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:28:57,341 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:28:57,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:28:57,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:28:57,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:28:57,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c13f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57, skipping insertion in model container [2019-09-10 01:28:57,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,360 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:28:57,381 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:28:57,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:28:57,622 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:28:57,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:28:57,741 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:28:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57 WrapperNode [2019-09-10 01:28:57,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:28:57,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:28:57,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:28:57,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:28:57,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (1/1) ... [2019-09-10 01:28:57,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:28:57,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:28:57,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:28:57,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:28:57,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (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 [2019-09-10 01:28:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:28:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:28:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-10 01:28:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2019-09-10 01:28:57,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:28:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:28:57,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:28:57,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:28:57,986 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:28:57,986 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:28:57,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:28:57 BoogieIcfgContainer [2019-09-10 01:28:57,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:28:57,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:28:57,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:28:57,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:28:57,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:28:57" (1/3) ... [2019-09-10 01:28:57,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd57703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:28:57, skipping insertion in model container [2019-09-10 01:28:57,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:28:57" (2/3) ... [2019-09-10 01:28:57,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd57703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:28:57, skipping insertion in model container [2019-09-10 01:28:57,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:28:57" (3/3) ... [2019-09-10 01:28:57,994 INFO L109 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2019-09-10 01:28:58,004 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:28:58,012 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:28:58,029 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:28:58,057 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:28:58,057 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:28:58,057 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:28:58,057 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:28:58,057 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:28:58,058 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:28:58,058 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:28:58,058 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:28:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-10 01:28:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:28:58,083 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:28:58,084 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:28:58,086 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:28:58,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:28:58,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1667394832, now seen corresponding path program 1 times [2019-09-10 01:28:58,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:28:58,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:28:58,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:28:58,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:28:58,136 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:28:58,168 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:28:58,168 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:28:58,169 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-10 01:28:58,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:28:58,185 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:29:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-09-10 01:29:00,204 INFO L285 seRefinementStrategy]: Strategy TaipanRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-09-10 01:29:00,205 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:29:00,233 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-09-10 01:29:00,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:29:00 BoogieIcfgContainer [2019-09-10 01:29:00,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:29:00,242 INFO L168 Benchmark]: Toolchain (without parser) took 2897.71 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 92.4 MB in the beginning and 151.0 MB in the end (delta: -58.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,245 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.45 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 179.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,249 INFO L168 Benchmark]: Boogie Preprocessor took 31.03 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,250 INFO L168 Benchmark]: RCFGBuilder took 214.16 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 166.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,251 INFO L168 Benchmark]: TraceAbstraction took 2248.94 ms. Allocated memory is still 201.3 MB. Free memory was 165.6 MB in the beginning and 151.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:00,259 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 397.45 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 92.1 MB in the beginning and 179.1 MB in the end (delta: -86.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.03 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 214.16 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 166.2 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2248.94 ms. Allocated memory is still 201.3 MB. Free memory was 165.6 MB in the beginning and 151.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L19] RET, EXPR f(IN) [L19] CALL, EXPR fp(IN) [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L19] RET, EXPR fp(IN) [L19] float x = IN - f(IN)/fp(IN); [L27] COND TRUE !(x < 0.1) [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. UNKNOWN Result, 2.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...