/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/water_pid.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:42:27,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:42:27,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:42:27,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:42:27,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:42:27,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:42:27,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:42:27,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:42:27,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:42:27,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:42:27,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:42:27,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 03:42:27,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:42:27,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:42:27,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:42:27,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:42:27,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:42:27,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:42:27,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:42:27,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:42:27,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:42:27,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:42:27,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:42:27,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:42:27,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:42:27,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 03:42:27,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 03:42:27,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 03:42:27,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 03:42:27,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 03:42:27,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 03:42:27,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 03:42:27,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 03:42:27,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:42:27,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:42:27,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:42:27,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:42:27,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:42:27,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:42:27,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:42:27,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:42:27,552 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:42:27,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:42:27,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:42:27,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:42:27,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:42:27,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:42:27,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:42:27,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:42:27,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:42:27,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:42:27,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:42:27,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:42:27,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:42:27,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:42:27,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:42:27,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:42:27,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:42:27,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:42:27,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:42:27,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:42:27,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:42:27,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:42:27,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:42:27,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:42:27,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:42:27,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:42:27,954 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:42:27,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/water_pid.c [2020-12-22 03:42:28,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3992dc98/f4e486e010194c858be378bf11eeef45/FLAG141028ef2 [2020-12-22 03:42:28,719 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:42:28,720 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/water_pid.c [2020-12-22 03:42:28,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3992dc98/f4e486e010194c858be378bf11eeef45/FLAG141028ef2 [2020-12-22 03:42:29,054 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3992dc98/f4e486e010194c858be378bf11eeef45 [2020-12-22 03:42:29,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:42:29,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:42:29,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:42:29,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:42:29,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:42:29,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523c2ed8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29, skipping insertion in model container [2020-12-22 03:42:29,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:42:29,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:42:29,262 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-benchs/water_pid.c[452,465] [2020-12-22 03:42:29,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:42:29,297 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:42:29,311 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-benchs/water_pid.c[452,465] [2020-12-22 03:42:29,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:42:29,334 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:42:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29 WrapperNode [2020-12-22 03:42:29,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:42:29,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:42:29,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:42:29,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:42:29,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:42:29,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:42:29,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:42:29,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:42:29,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (1/1) ... [2020-12-22 03:42:29,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:42:29,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:42:29,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:42:29,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:42:29,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (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 03:42:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:42:29,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:42:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:42:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:42:29,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:42:29,751 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-22 03:42:29,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:42:29 BoogieIcfgContainer [2020-12-22 03:42:29,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:42:29,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:42:29,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:42:29,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:42:29,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:42:29" (1/3) ... [2020-12-22 03:42:29,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6603ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:42:29, skipping insertion in model container [2020-12-22 03:42:29,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:42:29" (2/3) ... [2020-12-22 03:42:29,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6603ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:42:29, skipping insertion in model container [2020-12-22 03:42:29,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:42:29" (3/3) ... [2020-12-22 03:42:29,762 INFO L111 eAbstractionObserver]: Analyzing ICFG water_pid.c [2020-12-22 03:42:29,770 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:42:29,775 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:42:29,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:42:29,824 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:42:29,824 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:42:29,824 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:42:29,824 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:42:29,825 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:42:29,825 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:42:29,825 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:42:29,825 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:42:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-22 03:42:29,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-22 03:42:29,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:42:29,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:42:29,847 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:42:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:42:29,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1804134213, now seen corresponding path program 1 times [2020-12-22 03:42:29,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:42:29,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974264316] [2020-12-22 03:42:29,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:42:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:42:30,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:42:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:42:30,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:42:30,169 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:42:30,170 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:42:30,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:42:30,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:42:30 BoogieIcfgContainer [2020-12-22 03:42:30,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:42:30,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:42:30,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:42:30,216 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:42:30,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:42:29" (3/4) ... [2020-12-22 03:42:30,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 03:42:30,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:42:30,240 INFO L168 Benchmark]: Toolchain (without parser) took 1178.55 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 126.9 MB in the end (delta: -485.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:42:30,243 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:42:30,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.00 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:42:30,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:42:30,248 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:42:30,250 INFO L168 Benchmark]: RCFGBuilder took 346.75 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 101.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-22 03:42:30,252 INFO L168 Benchmark]: TraceAbstraction took 460.56 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 126.9 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:42:30,252 INFO L168 Benchmark]: Witness Printer took 18.97 ms. Allocated memory is still 151.0 MB. Free memory is still 126.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:42:30,264 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 151.0 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 273.00 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 116.4 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.46 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 346.75 ms. Allocated memory is still 151.0 MB. Free memory was 113.6 MB in the beginning and 101.1 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 460.56 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 126.9 MB in the end (delta: -26.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 18.97 ms. Allocated memory is still 151.0 MB. Free memory is still 126.9 MB. 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 someBinaryDOUBLEComparisonOperation at line 46, overapproximation of to_real at line 31, overapproximation of someBinaryArithmeticDOUBLEoperation at line 41. Possible FailurePath: [L12] static NUM yn = 0; [L14] NUM ui = 0; [L24] NUM yi, yc; [L25] NUM K; [L26] NUM T; [L27] NUM taui; [L28] NUM taud; [L29] NUM ei, sumej, epi; [L30] int i; [L31] T = 1 [L32] taui = 1 [L33] taud = 1 [L34] K = .5 [L35] yc = .5 [L18] yn += ui [L19] return yn; VAL [yn=50] [L36] yi = y(0) [L37] epi = yc-yi [L38] sumej = epi [L39] i=0 VAL [yn=50] [L39] COND TRUE i<120 [L18] yn += ui [L19] return yn; VAL [yn=52] [L40] yi = y(i) [L41] ei = yc-yi [L42] sumej = sumej+ei [L43] ui = K*(ei+sumej*T/taui+taud/T*(ei-epi)) [L44] epi = ei [L8] COND TRUE !(cond) VAL [yn=52] [L8] reach_error() VAL [yn=52] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 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=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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 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, 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...