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/square_4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:29:51,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:29:51,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:29:51,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:29:51,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:29:51,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:29:51,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:29:51,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:29:51,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:29:51,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:29:51,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:29:51,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:29:51,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:29:51,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:29:51,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:29:51,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:29:51,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:29:51,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:29:51,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:29:51,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:29:51,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:29:51,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:29:51,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:29:51,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:29:51,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 01:29:51,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 01:29:51,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 01:29:51,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 01:29:51,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 01:29:51,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 01:29:51,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:29:51,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:29:51,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:29:51,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:29:51,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:29:51,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:29:51,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:29:51,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:29:51,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:29:51,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:29:51,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:29:51,522 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 01:29:51,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:29:51,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:29:51,543 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:29:51,544 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:29:51,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:29:51,545 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:29:51,545 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:29:51,545 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:29:51,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:29:51,545 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:29:51,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:29:51,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:29:51,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:29:51,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:29:51,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:29:51,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:29:51,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:29:51,548 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:29:51,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:29:51,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:29:51,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:29:51,548 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:29:51,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:29:51,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:29:51,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:29:51,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:29:51,550 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:29:51,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:29:51,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:29:51,550 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:29:51,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:29:51,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:29:51,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:29:51,612 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:29:51,613 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:29:51,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cdfpl/square_4.i [2019-09-10 01:29:51,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30ea1ec/e401556257af44adb857a71938eb409a/FLAG39142f22a [2019-09-10 01:29:52,155 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:29:52,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cdfpl/square_4.i [2019-09-10 01:29:52,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30ea1ec/e401556257af44adb857a71938eb409a/FLAG39142f22a [2019-09-10 01:29:52,542 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30ea1ec/e401556257af44adb857a71938eb409a [2019-09-10 01:29:52,551 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:29:52,552 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:29:52,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:52,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:29:52,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:29:52,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@766966bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52, skipping insertion in model container [2019-09-10 01:29:52,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,569 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:29:52,585 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:29:52,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:52,755 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:29:52,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:29:52,782 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:29:52,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52 WrapperNode [2019-09-10 01:29:52,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:29:52,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:29:52,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:29:52,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:29:52,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (1/1) ... [2019-09-10 01:29:52,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:29:52,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:29:52,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:29:52,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:29:52,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (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 01:29:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:29:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:29:52,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:29:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:29:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:29:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2019-09-10 01:29:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:29:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:29:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:29:53,080 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:29:53,081 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:29:53,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:53 BoogieIcfgContainer [2019-09-10 01:29:53,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:29:53,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:29:53,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:29:53,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:29:53,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:29:52" (1/3) ... [2019-09-10 01:29:53,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e56de87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:53, skipping insertion in model container [2019-09-10 01:29:53,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:29:52" (2/3) ... [2019-09-10 01:29:53,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e56de87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:29:53, skipping insertion in model container [2019-09-10 01:29:53,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:29:53" (3/3) ... [2019-09-10 01:29:53,089 INFO L109 eAbstractionObserver]: Analyzing ICFG square_4.i [2019-09-10 01:29:53,098 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:29:53,104 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:29:53,120 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:29:53,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:29:53,147 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:29:53,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:29:53,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:29:53,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:29:53,148 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:29:53,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:29:53,148 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:29:53,163 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-09-10 01:29:53,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-09-10 01:29:53,172 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:29:53,173 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:29:53,175 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:29:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:29:53,181 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2019-09-10 01:29:53,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:29:53,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:53,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:53,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:29:53,224 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:29:53,242 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:29:53,242 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:29:53,243 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 01:29:53,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:29:53,257 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 01:29:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-09-10 01:29:53,277 INFO L285 seRefinementStrategy]: Strategy TaipanRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-09-10 01:29:53,278 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:29:53,304 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-09-10 01:29:53,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:29:53 BoogieIcfgContainer [2019-09-10 01:29:53,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:29:53,310 INFO L168 Benchmark]: Toolchain (without parser) took 754.87 ms. Allocated memory was 142.1 MB in the beginning and 201.3 MB in the end (delta: 59.2 MB). Free memory was 89.7 MB in the beginning and 154.9 MB in the end (delta: -65.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 01:29:53,312 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 142.1 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:29:53,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.02 ms. Allocated memory is still 142.1 MB. Free memory was 89.5 MB in the beginning and 80.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:53,316 INFO L168 Benchmark]: Boogie Preprocessor took 117.38 ms. Allocated memory was 142.1 MB in the beginning and 201.3 MB in the end (delta: 59.2 MB). Free memory was 80.3 MB in the beginning and 179.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:53,318 INFO L168 Benchmark]: RCFGBuilder took 180.84 ms. Allocated memory is still 201.3 MB. Free memory was 179.0 MB in the beginning and 169.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:53,319 INFO L168 Benchmark]: TraceAbstraction took 222.02 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 154.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:29:53,330 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 142.1 MB. Free memory was 108.2 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 230.02 ms. Allocated memory is still 142.1 MB. Free memory was 89.5 MB in the beginning and 80.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.38 ms. Allocated memory was 142.1 MB in the beginning and 201.3 MB in the end (delta: 59.2 MB). Free memory was 80.3 MB in the beginning and 179.0 MB in the end (delta: -98.7 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 180.84 ms. Allocated memory is still 201.3 MB. Free memory was 179.0 MB in the beginning and 169.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 222.02 ms. Allocated memory is still 201.3 MB. Free memory was 169.3 MB in the beginning and 154.9 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: 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: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L14] COND TRUE !(result >= 0.0f && result < 1.39844f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNKNOWN Result, 0.1s 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=13occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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...