/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:45:24,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:45:24,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:45:24,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:45:24,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:45:24,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:45:24,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:45:24,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:45:24,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:45:24,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:45:24,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:45:24,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:45:24,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:45:24,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:45:24,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:45:24,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:45:24,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:45:24,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:45:24,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:45:24,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:45:24,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:45:24,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:45:24,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:45:24,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:45:24,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:45:24,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 03:45:24,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 03:45:24,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 03:45:24,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 03:45:24,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 03:45:24,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 03:45:24,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 03:45:24,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 03:45:24,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:45:24,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:45:24,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:45:24,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:45:24,310 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:45:24,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:45:24,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:45:24,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:45:24,313 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:45:24,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:45:24,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:45:24,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:45:24,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:45:24,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:45:24,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:45:24,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:45:24,315 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:45:24,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:45:24,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:45:24,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:45:24,320 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:45:24,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:45:24,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:45:24,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:45:24,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:45:24,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:45:24,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:45:24,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:45:24,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:45:24,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:45:24,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:45:24,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:45:24,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:45:24,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:45:24,804 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:45:24,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-12-22 03:45:24,903 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11caf890e/335eecbb1a5b4c318b825a2e80337327/FLAG655b20c05 [2020-12-22 03:45:25,646 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:45:25,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c [2020-12-22 03:45:25,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11caf890e/335eecbb1a5b4c318b825a2e80337327/FLAG655b20c05 [2020-12-22 03:45:25,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11caf890e/335eecbb1a5b4c318b825a2e80337327 [2020-12-22 03:45:25,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:45:25,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:45:25,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:45:25,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:45:25,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:45:25,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:25" (1/1) ... [2020-12-22 03:45:25,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa70bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:25, skipping insertion in model container [2020-12-22 03:45:25,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:45:25" (1/1) ... [2020-12-22 03:45:25,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:45:26,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:45:26,251 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2020-12-22 03:45:26,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:45:26,266 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:45:26,337 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0680b.c[6162,6175] [2020-12-22 03:45:26,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:45:26,373 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:45:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26 WrapperNode [2020-12-22 03:45:26,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:45:26,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:45:26,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:45:26,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:45:26,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:45:26,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:45:26,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:45:26,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:45:26,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (1/1) ... [2020-12-22 03:45:26,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:45:26,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:45:26,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:45:26,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:45:26,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (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 [2020-12-22 03:45:26,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:45:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:45:26,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-22 03:45:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:45:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-22 03:45:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:45:26,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:45:26,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:45:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-22 03:45:26,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 03:45:27,698 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:45:27,699 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-22 03:45:27,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:27 BoogieIcfgContainer [2020-12-22 03:45:27,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:45:27,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:45:27,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:45:27,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:45:27,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:45:25" (1/3) ... [2020-12-22 03:45:27,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4db58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:45:27, skipping insertion in model container [2020-12-22 03:45:27,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:45:26" (2/3) ... [2020-12-22 03:45:27,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4db58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:45:27, skipping insertion in model container [2020-12-22 03:45:27,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:27" (3/3) ... [2020-12-22 03:45:27,711 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-12-22 03:45:27,718 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:45:27,724 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:45:27,746 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:45:27,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:45:27,776 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:45:27,776 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:45:27,776 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:45:27,776 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:45:27,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:45:27,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:45:27,777 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:45:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-12-22 03:45:27,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 03:45:27,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:45:27,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:45:27,805 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:45:27,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:45:27,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2020-12-22 03:45:27,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:45:27,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328625532] [2020-12-22 03:45:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:45:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:45:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:45:28,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328625532] [2020-12-22 03:45:28,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:45:28,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 03:45:28,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137635080] [2020-12-22 03:45:28,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 03:45:28,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:45:28,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 03:45:28,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:45:28,054 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2020-12-22 03:45:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:45:28,090 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2020-12-22 03:45:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 03:45:28,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-22 03:45:28,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:45:28,105 INFO L225 Difference]: With dead ends: 224 [2020-12-22 03:45:28,106 INFO L226 Difference]: Without dead ends: 110 [2020-12-22 03:45:28,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:45:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-12-22 03:45:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-12-22 03:45:28,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-12-22 03:45:28,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2020-12-22 03:45:28,161 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2020-12-22 03:45:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:45:28,161 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2020-12-22 03:45:28,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 03:45:28,162 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2020-12-22 03:45:28,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 03:45:28,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:45:28,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:45:28,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:45:28,163 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:45:28,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:45:28,164 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2020-12-22 03:45:28,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:45:28,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576783535] [2020-12-22 03:45:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:45:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:45:28,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:45:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:45:28,428 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:45:28,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:45:28,460 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:45:28,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 03:45:28,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:45:28 BoogieIcfgContainer [2020-12-22 03:45:28,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:45:28,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:45:28,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:45:28,505 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:45:28,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:45:27" (3/4) ... [2020-12-22 03:45:28,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 03:45:28,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:45:28,517 INFO L168 Benchmark]: Toolchain (without parser) took 2544.70 ms. Allocated memory is still 152.0 MB. Free memory was 126.5 MB in the beginning and 89.9 MB in the end (delta: 36.6 MB). Peak memory consumption was 37.3 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,518 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:45:28,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.89 ms. Allocated memory is still 152.0 MB. Free memory was 126.4 MB in the beginning and 112.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 152.0 MB. Free memory was 112.0 MB in the beginning and 108.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,520 INFO L168 Benchmark]: Boogie Preprocessor took 95.74 ms. Allocated memory is still 152.0 MB. Free memory was 108.5 MB in the beginning and 105.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,521 INFO L168 Benchmark]: RCFGBuilder took 1133.70 ms. Allocated memory is still 152.0 MB. Free memory was 105.3 MB in the beginning and 126.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,522 INFO L168 Benchmark]: TraceAbstraction took 801.25 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 90.4 MB in the end (delta: 35.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,523 INFO L168 Benchmark]: Witness Printer took 9.84 ms. Allocated memory is still 152.0 MB. Free memory was 90.4 MB in the beginning and 89.9 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:45:28,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 400.89 ms. Allocated memory is still 152.0 MB. Free memory was 126.4 MB in the beginning and 112.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.94 ms. Allocated memory is still 152.0 MB. Free memory was 112.0 MB in the beginning and 108.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 95.74 ms. Allocated memory is still 152.0 MB. Free memory was 108.5 MB in the beginning and 105.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1133.70 ms. Allocated memory is still 152.0 MB. Free memory was 105.3 MB in the beginning and 126.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 801.25 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 90.4 MB in the end (delta: 35.1 MB). Peak memory consumption was 34.6 MB. Max. memory is 8.0 GB. * Witness Printer took 9.84 ms. Allocated memory is still 152.0 MB. Free memory was 90.4 MB in the beginning and 89.9 MB in the end (delta: 526.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = -0.0; [L254] double y = 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...