/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0530a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:41:46,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:41:46,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:41:46,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:41:46,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:41:46,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:41:46,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:41:46,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:41:46,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:41:46,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:41:46,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:41:46,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:41:46,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:41:46,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:41:46,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:41:46,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:41:46,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:41:46,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:41:46,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:41:46,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:41:46,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:41:46,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:41:46,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:41:46,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:41:46,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:41:46,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:41:46,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:41:46,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:41:46,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:41:46,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:41:46,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:41:46,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:41:46,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:41:46,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:41:46,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:41:46,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:41:46,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:41:46,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:41:46,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:41:46,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:41:46,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:41:46,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:41:46,767 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:41:46,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:41:46,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:41:46,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:41:46,774 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:41:46,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:41:46,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:41:46,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:41:46,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:41:46,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:41:46,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:41:46,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:41:46,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:41:46,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:41:46,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:41:46,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:41:46,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:41:46,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:41:46,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:41:46,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:41:46,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:41:46,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:41:46,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:41:46,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:41:46,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:41:46,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:41:46,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:41:46,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:41:46,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:41:46,780 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:41:47,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:41:47,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:41:47,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:41:47,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:41:47,248 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:41:47,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0530a.c [2020-10-27 19:41:47,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3b41e58a/123c56dfc1d24738be5796da05e4a73c/FLAG266948851 [2020-10-27 19:41:48,013 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:41:48,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0530a.c [2020-10-27 19:41:48,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3b41e58a/123c56dfc1d24738be5796da05e4a73c/FLAG266948851 [2020-10-27 19:41:48,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b3b41e58a/123c56dfc1d24738be5796da05e4a73c [2020-10-27 19:41:48,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:41:48,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:41:48,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:41:48,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:41:48,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:41:48,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:48" (1/1) ... [2020-10-27 19:41:48,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f45a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:48, skipping insertion in model container [2020-10-27 19:41:48,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:48" (1/1) ... [2020-10-27 19:41:48,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:41:48,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:41:48,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:41:48,907 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:41:49,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:41:49,164 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:41:49,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49 WrapperNode [2020-10-27 19:41:49,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:41:49,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:41:49,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:41:49,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:41:49,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... [2020-10-27 19:41:49,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:41:49,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:41:49,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:41:49,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:41:49,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 19:41:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:41:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:41:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:41:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-10-27 19:41:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2020-10-27 19:41:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2020-10-27 19:41:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:41:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2 [2020-10-27 19:41:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2 [2020-10-27 19:41:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tan [2020-10-27 19:41:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_double [2020-10-27 19:41:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:41:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:41:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:41:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:41:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:41:49,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2 [2020-10-27 19:41:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2 [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tan [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure tan_double [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:41:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:41:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:41:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:41:51,151 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:41:51,152 INFO L298 CfgBuilder]: Removed 67 assume(true) statements. [2020-10-27 19:41:51,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:51 BoogieIcfgContainer [2020-10-27 19:41:51,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:41:51,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:41:51,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:41:51,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:41:51,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:41:48" (1/3) ... [2020-10-27 19:41:51,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c079376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:51, skipping insertion in model container [2020-10-27 19:41:51,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:49" (2/3) ... [2020-10-27 19:41:51,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c079376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:51, skipping insertion in model container [2020-10-27 19:41:51,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:51" (3/3) ... [2020-10-27 19:41:51,163 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0530a.c [2020-10-27 19:41:51,176 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:41:51,182 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:41:51,196 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:41:51,227 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:41:51,227 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:41:51,227 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:41:51,227 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:41:51,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:41:51,228 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:41:51,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:41:51,228 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:41:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-10-27 19:41:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:41:51,259 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:41:51,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:41:51,260 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:41:51,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:41:51,268 INFO L82 PathProgramCache]: Analyzing trace with hash 801984433, now seen corresponding path program 1 times [2020-10-27 19:41:51,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:41:51,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109520006] [2020-10-27 19:41:51,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:41:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:52,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:52,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:41:52,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:41:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-10-27 19:41:52,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:52,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:41:52,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:52,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:41:52,269 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-27 19:41:52,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:41:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:52,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:52,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:52,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:41:52,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:41:52,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 19:41:52,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:52,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:52,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:41:52,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:52,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:41:52,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:41:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:41:52,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:41:52,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:41:52,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:41:52,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:41:52,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 19:41:52,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:41:52,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:41:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:41:52,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:41:52,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:41:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:41:52,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109520006] [2020-10-27 19:41:52,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:41:52,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:41:52,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162507353] [2020-10-27 19:41:52,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:41:52,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:41:52,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:41:52,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:41:52,446 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2020-10-27 19:41:52,629 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-27 19:41:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:41:53,761 INFO L93 Difference]: Finished difference Result 559 states and 909 transitions. [2020-10-27 19:41:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:41:53,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:41:53,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:41:53,778 INFO L225 Difference]: With dead ends: 559 [2020-10-27 19:41:53,778 INFO L226 Difference]: Without dead ends: 278 [2020-10-27 19:41:53,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:41:53,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-27 19:41:53,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-10-27 19:41:53,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-10-27 19:41:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 377 transitions. [2020-10-27 19:41:53,920 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 377 transitions. Word has length 19 [2020-10-27 19:41:53,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:41:53,924 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 377 transitions. [2020-10-27 19:41:53,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:41:53,924 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 377 transitions. [2020-10-27 19:41:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:41:53,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:41:53,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:41:53,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:41:53,928 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:41:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:41:53,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1626895349, now seen corresponding path program 1 times [2020-10-27 19:41:53,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:41:53,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1043442388] [2020-10-27 19:41:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:41:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:41:54,085 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:41:54,085 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:41:54,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:41:54,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:41:54 BoogieIcfgContainer [2020-10-27 19:41:54,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:41:54,121 INFO L168 Benchmark]: Toolchain (without parser) took 5793.70 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 136.9 MB in the beginning and 158.9 MB in the end (delta: -22.0 MB). Peak memory consumption was 116.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:54,121 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 163.6 MB. Free memory is still 134.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:41:54,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 831.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 109.3 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:54,124 INFO L168 Benchmark]: Boogie Preprocessor took 217.72 ms. Allocated memory is still 163.6 MB. Free memory was 109.3 MB in the beginning and 139.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:54,126 INFO L168 Benchmark]: RCFGBuilder took 1766.29 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 139.3 MB in the beginning and 137.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 90.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:54,127 INFO L168 Benchmark]: TraceAbstraction took 2960.04 ms. Allocated memory is still 197.1 MB. Free memory was 137.6 MB in the beginning and 158.9 MB in the end (delta: -21.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:41:54,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 163.6 MB. Free memory is still 134.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 831.22 ms. Allocated memory is still 163.6 MB. Free memory was 136.3 MB in the beginning and 109.3 MB in the end (delta: 27.0 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 217.72 ms. Allocated memory is still 163.6 MB. Free memory was 109.3 MB in the beginning and 139.3 MB in the end (delta: -30.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1766.29 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 139.3 MB in the beginning and 137.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 90.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2960.04 ms. Allocated memory is still 197.1 MB. Free memory was 137.6 MB in the beginning and 158.9 MB in the end (delta: -21.3 MB). Peak memory consumption was 82.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 535, overapproximation of bitwiseAnd at line 621, overapproximation of someBinaryArithmeticDOUBLEoperation at line 626, overapproximation of someBinaryDOUBLEComparisonOperation at line 658. Possible FailurePath: [L19] static const double huge_floor = 1.0e300; [L105-L107] static const double two54_scalbn = 1.80143985094819840000e+16, twom54_scalbn = 5.55111512312578270212e-17, huge_scalbn = 1.0e+300, tiny_scalbn = 1.0e-300; [L176] static const int init_jk_krempio[] = {2, 3, 4, 6}; [L178-L183] static const double PIo2_krempio[] = { 1.57079625129699707031e+00, 7.54978941586159635335e-08, 5.39030252995776476554e-15, 3.28200341580791294123e-22, 1.27065575308067607349e-29, 1.22933308981111328932e-36, 2.73370053816464559624e-44, 2.16741683877804819444e-51, }; [L185-L187] static const double zero_krempio = 0.0, one_krempio = 1.0, two24_krempio = 1.67772160000000000000e+07, twon24_krempio = 5.96046447753906250000e-08; [L362-L373] static const __int32_t two_over_pi_rempio[] = { 0xA2F983, 0x6E4E44, 0x1529FC, 0x2757D1, 0xF534DD, 0xC0DB62, 0x95993C, 0x439041, 0xFE5163, 0xABDEBB, 0xC561B7, 0x246E3A, 0x424DD2, 0xE00649, 0x2EEA09, 0xD1921C, 0xFE1DEB, 0x1CB129, 0xA73EE8, 0x8235F5, 0x2EBB44, 0x84E99C, 0x7026B4, 0x5F7E41, 0x3991D6, 0x398353, 0x39F49C, 0x845F8B, 0xBDF928, 0x3B1FF8, 0x97FFDE, 0x05980F, 0xEF2F11, 0x8B5A0A, 0x6D1F6D, 0x367ECF, 0x27CB09, 0xB74F46, 0x3F669E, 0x5FEA2D, 0x7527BA, 0xC7EBE5, 0xF17B3D, 0x0739F7, 0x8A5292, 0xEA6BFB, 0x5FB11F, 0x8D5D08, 0x560330, 0x46FC7B, 0x6BABF0, 0xCFBC20, 0x9AF436, 0x1DA9E3, 0x91615E, 0xE61B08, 0x659985, 0x5F14A0, 0x68408D, 0xFFD880, 0x4D7327, 0x310606, 0x1556CA, 0x73A8C9, 0x60E27B, 0xC08C6B, }; [L375-L382] static const __int32_t npio2_hw_rempio[] = { 0x3FF921FB, 0x400921FB, 0x4012D97C, 0x401921FB, 0x401F6A7A, 0x4022D97C, 0x4025FDBB, 0x402921FB, 0x402C463A, 0x402F6A7A, 0x4031475C, 0x4032D97C, 0x40346B9C, 0x4035FDBB, 0x40378FDB, 0x403921FB, 0x403AB41B, 0x403C463A, 0x403DD85A, 0x403F6A7A, 0x40407E4C, 0x4041475C, 0x4042106C, 0x4042D97C, 0x4043A28C, 0x40446B9C, 0x404534AC, 0x4045FDBB, 0x4046C6CB, 0x40478FDB, 0x404858EB, 0x404921FB, }; [L384-L393] static const double zero_rempio = 0.00000000000000000000e+00, half_rempio = 5.00000000000000000000e-01, two24_rempio = 1.67772160000000000000e+07, invpio2_rempio = 6.36619772367581382433e-01, pio2_1_rempio = 1.57079632673412561417e+00, pio2_1t_rempio = 6.07710050650619224932e-11, pio2_2_rempio = 6.07710050630396597660e-11, pio2_2t_rempio = 2.02226624879595063154e-21, pio2_3_rempio = 2.02226624871116645580e-21, pio2_3t_rempio = 8.47842766036889956997e-32; [L526-L537] static const double one_ktan = 1.00000000000000000000e+00, pio4_ktan = 7.85398163397448278999e-01, pio4lo_ktan = 3.06161699786838301793e-17, T[] = { 3.33333333333334091986e-01, 1.33333333333201242699e-01, 5.39682539762260521377e-02, 2.18694882948595424599e-02, 8.86323982359930005737e-03, 3.59207910759131235356e-03, 1.45620945432529025516e-03, 5.88041240820264096874e-04, 2.46463134818469906812e-04, 7.81794442939557092300e-05, 7.14072491382608190305e-05, -1.85586374855275456654e-05, 2.59073051863633712884e-05, }; [L654] double x = 0.0; [L655] CALL, EXPR tan_double(x) [L612] double y[2], z = 0.0; [L613] __int32_t n, ix; [L616] ieee_double_shape_type gh_u; [L617] gh_u.value = (x) [L618] EXPR gh_u.parts.msw [L618] (ix) = gh_u.parts.msw [L621] ix &= 0x7fffffff [L622] COND FALSE !(ix <= 0x3fe921fb) [L625] COND TRUE ix >= 0x7ff00000 [L626] return x - x; [L626] return x - x; [L655] RET, EXPR tan_double(x) [L655] double res = tan_double(x); [L658] EXPR res == 0.0 && __signbit_double(res) == 0 [L658] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L659] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0530a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 285 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 371 SDtfs, 16 SDslu, 291 SDs, 0 SdLazy, 427 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 2808 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...