/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-benchs/nan_float.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:07:13,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:07:13,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:07:13,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:07:13,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:07:13,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:07:13,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:07:13,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:07:13,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:07:13,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:07:13,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:07:13,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:07:13,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:07:13,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:07:13,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:07:13,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:07:13,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:07:13,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:07:13,792 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:07:13,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:07:13,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:07:13,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:07:13,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:07:13,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:07:13,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:07:13,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:07:13,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:07:13,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:07:13,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:07:13,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:07:13,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:07:13,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:07:13,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:07:13,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:07:13,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:07:13,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:07:13,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:07:13,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:07:13,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:07:13,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:07:13,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:07:13,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:07:13,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:07:13,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:07:13,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:07:13,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:07:13,889 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:07:13,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:07:13,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:07:13,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:07:13,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:07:13,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:07:13,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:07:13,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:07:13,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:07:13,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:07:13,894 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:07:13,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:07:13,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:07:13,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:07:13,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:07:13,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:07:13,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:07:13,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:07:13,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:07:13,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:07:13,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:07:13,897 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:07:14,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:07:14,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:07:14,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:07:14,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:07:14,366 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:07:14,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2020-12-23 06:07:14,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/27a393a12/52077b2455dc4c59ab16d1e660f5043e/FLAG810ccd36e [2020-12-23 06:07:15,077 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:07:15,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2020-12-23 06:07:15,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/27a393a12/52077b2455dc4c59ab16d1e660f5043e/FLAG810ccd36e [2020-12-23 06:07:15,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/27a393a12/52077b2455dc4c59ab16d1e660f5043e [2020-12-23 06:07:15,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:07:15,448 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:07:15,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:07:15,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:07:15,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:07:15,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2911af2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15, skipping insertion in model container [2020-12-23 06:07:15,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:07:15,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-23 06:07:15,724 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:07:15,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:07:15,759 INFO L203 MainTranslator]: Completed pre-run [2020-12-23 06:07:15,774 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:07:15,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:07:15,792 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:07:15,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15 WrapperNode [2020-12-23 06:07:15,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:07:15,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:07:15,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:07:15,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:07:15,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:07:15,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:07:15,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:07:15,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:07:15,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... [2020-12-23 06:07:15,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:07:15,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:07:15,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:07:15,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:07:15,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:07:15,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:07:15,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:07:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:07:15,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:07:16,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:07:16,193 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 06:07:16,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:16 BoogieIcfgContainer [2020-12-23 06:07:16,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:07:16,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:07:16,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:07:16,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:07:16,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:07:15" (1/3) ... [2020-12-23 06:07:16,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dbac28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:07:16, skipping insertion in model container [2020-12-23 06:07:16,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:15" (2/3) ... [2020-12-23 06:07:16,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64dbac28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:07:16, skipping insertion in model container [2020-12-23 06:07:16,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:16" (3/3) ... [2020-12-23 06:07:16,223 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2020-12-23 06:07:16,241 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:07:16,252 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:07:16,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:07:16,335 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:07:16,336 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:07:16,336 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:07:16,336 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:07:16,336 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:07:16,336 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:07:16,336 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:07:16,337 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:07:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-23 06:07:16,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-23 06:07:16,360 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:07:16,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-23 06:07:16,389 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:07:16,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:07:16,404 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-23 06:07:16,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:07:16,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285824628] [2020-12-23 06:07:16,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:07:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:07:16,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:07:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:07:16,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:07:16,717 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:07:16,718 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:07:16,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:07:16,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:07:16 BoogieIcfgContainer [2020-12-23 06:07:16,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:07:16,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:07:16,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:07:16,754 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:07:16,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:16" (3/4) ... [2020-12-23 06:07:16,758 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:07:16,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:07:16,763 INFO L168 Benchmark]: Toolchain (without parser) took 1312.70 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 126.6 MB in the end (delta: 277.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:16,764 INFO L168 Benchmark]: CDTParser took 3.29 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:16,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.46 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:16,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.76 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 115.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:16,771 INFO L168 Benchmark]: Boogie Preprocessor took 23.80 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 115.0 MB in the end (delta: 911.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:16,773 INFO L168 Benchmark]: RCFGBuilder took 338.43 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 104.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:16,774 INFO L168 Benchmark]: TraceAbstraction took 550.80 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 127.2 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:16,776 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:16,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.29 ms. Allocated memory is still 151.0 MB. Free memory is still 125.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 338.46 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.76 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 115.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.80 ms. Allocated memory is still 151.0 MB. Free memory was 115.9 MB in the beginning and 115.0 MB in the end (delta: 911.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 338.43 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 104.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 550.80 ms. Allocated memory is still 151.0 MB. Free memory was 104.3 MB in the beginning and 127.2 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 5.33 ms. Allocated memory is still 151.0 MB. Free memory was 127.2 MB in the beginning and 126.6 MB in the end (delta: 522.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...