/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=NARROWEST --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 -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:20:30,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:20:30,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:20:30,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:20:30,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:20:30,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:20:30,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:20:30,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:20:30,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:20:30,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:20:30,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:20:30,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:20:30,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:20:30,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:20:30,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:20:30,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:20:30,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:20:30,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:20:30,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:20:30,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:20:30,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:20:30,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:20:30,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:20:30,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:20:30,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:20:30,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:20:30,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:20:30,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:20:30,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:20:30,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:20:30,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:20:30,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:20:30,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:20:30,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:20:30,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:20:30,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:20:30,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:20:30,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:20:30,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:20:30,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:20:30,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:20:30,533 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 [2020-10-13 10:20:30,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:20:30,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:20:30,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:20:30,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:20:30,559 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:20:30,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:20:30,559 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:20:30,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:20:30,561 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:20:30,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:20:30,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:20:30,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:20:30,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:20:30,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:20:30,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:20:30,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:20:30,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:20:30,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:20:30,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:20:30,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:20:30,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:20:30,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:20:30,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:20:30,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:20:30,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:20:30,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:20:30,894 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:20:30,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:20:30,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:20:30,901 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:20:30,902 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2020-10-13 10:20:30,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ddaaf05c/be972ed4eba14fa7aa8f90f8d78b3a11/FLAG9339a0b7a [2020-10-13 10:20:31,416 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:20:31,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_1271a.c [2020-10-13 10:20:31,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ddaaf05c/be972ed4eba14fa7aa8f90f8d78b3a11/FLAG9339a0b7a [2020-10-13 10:20:31,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ddaaf05c/be972ed4eba14fa7aa8f90f8d78b3a11 [2020-10-13 10:20:31,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:20:31,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:20:31,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:20:31,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:20:31,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:20:31,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:20:31" (1/1) ... [2020-10-13 10:20:31,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fa96a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:31, skipping insertion in model container [2020-10-13 10:20:31,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:20:31" (1/1) ... [2020-10-13 10:20:31,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:20:31,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:20:32,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:20:32,087 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:20:32,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:20:32,283 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:20:32,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32 WrapperNode [2020-10-13 10:20:32,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:20:32,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:20:32,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:20:32,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:20:32,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (1/1) ... [2020-10-13 10:20:32,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:20:32,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:20:32,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:20:32,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:20:32,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (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 [2020-10-13 10:20:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:20:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:20:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2020-10-13 10:20:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypotf [2020-10-13 10:20:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2020-10-13 10:20:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_float [2020-10-13 10:20:32,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:20:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:20:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2020-10-13 10:20:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2020-10-13 10:20:32,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:20:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypotf [2020-10-13 10:20:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2020-10-13 10:20:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_float [2020-10-13 10:20:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:20:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:20:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:20:33,183 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:20:33,184 INFO L295 CfgBuilder]: Removed 34 assume(true) statements. [2020-10-13 10:20:33,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:20:33 BoogieIcfgContainer [2020-10-13 10:20:33,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:20:33,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:20:33,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:20:33,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:20:33,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:20:31" (1/3) ... [2020-10-13 10:20:33,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7329ae24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:20:33, skipping insertion in model container [2020-10-13 10:20:33,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:20:32" (2/3) ... [2020-10-13 10:20:33,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7329ae24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:20:33, skipping insertion in model container [2020-10-13 10:20:33,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:20:33" (3/3) ... [2020-10-13 10:20:33,199 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2020-10-13 10:20:33,211 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:20:33,219 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:20:33,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:20:33,263 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:20:33,263 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:20:33,263 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:20:33,264 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:20:33,264 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:20:33,264 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:20:33,265 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:20:33,265 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:20:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states. [2020-10-13 10:20:33,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-13 10:20:33,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:20:33,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:20:33,299 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:20:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:20:33,307 INFO L82 PathProgramCache]: Analyzing trace with hash 860825893, now seen corresponding path program 1 times [2020-10-13 10:20:33,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:20:33,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573382957] [2020-10-13 10:20:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:20:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:20:33,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:20:33,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 10:20:33,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 10:20:33,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-13 10:20:33,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:20:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:20:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 10:20:33,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:20:33,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 10:20:33,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:20:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:20:33,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:20:33,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:20:33,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:20:33,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 10:20:33,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:20:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:20:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:20:33,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:20:33,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:20:33,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:20:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:20:33,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:20:33,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 10:20:33,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:20:33,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 10:20:33,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:20:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:20:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 10:20:33,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:20:33,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:20:33,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-13 10:20:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:20:33,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:33,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:20:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 10:20:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 10:20:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 10:20:33,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:20:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:20:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-10-13 10:20:33,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:20:33,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:20:33,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-13 10:20:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:20:34,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:20:34,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:20:34,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:20:34,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:20:34,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:20:34,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:20:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:20:34,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:20:34,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:20:34,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:20:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:20:34,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573382957] [2020-10-13 10:20:34,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:20:34,048 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:20:34,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078397840] [2020-10-13 10:20:34,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:20:34,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:20:34,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:20:34,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:20:34,074 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 4 states. [2020-10-13 10:20:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:20:34,468 INFO L93 Difference]: Finished difference Result 210 states and 329 transitions. [2020-10-13 10:20:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 10:20:34,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-13 10:20:34,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:20:34,483 INFO L225 Difference]: With dead ends: 210 [2020-10-13 10:20:34,483 INFO L226 Difference]: Without dead ends: 104 [2020-10-13 10:20:34,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:20:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-10-13 10:20:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-10-13 10:20:34,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-13 10:20:34,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2020-10-13 10:20:34,556 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 34 [2020-10-13 10:20:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:20:34,557 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2020-10-13 10:20:34,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:20:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2020-10-13 10:20:34,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-13 10:20:34,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:20:34,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:20:34,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:20:34,560 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:20:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:20:34,561 INFO L82 PathProgramCache]: Analyzing trace with hash 68622012, now seen corresponding path program 1 times [2020-10-13 10:20:34,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:20:34,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [830911118] [2020-10-13 10:20:34,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:20:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:20:34,662 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:20:34,662 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:20:34,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:20:34,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:20:34 BoogieIcfgContainer [2020-10-13 10:20:34,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:20:34,691 INFO L168 Benchmark]: Toolchain (without parser) took 2886.63 ms. Allocated memory was 145.8 MB in the beginning and 234.4 MB in the end (delta: 88.6 MB). Free memory was 101.7 MB in the beginning and 143.0 MB in the end (delta: -41.2 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,692 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.91 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 178.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,694 INFO L168 Benchmark]: Boogie Preprocessor took 73.12 ms. Allocated memory is still 202.9 MB. Free memory was 178.4 MB in the beginning and 174.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,695 INFO L168 Benchmark]: RCFGBuilder took 830.65 ms. Allocated memory is still 202.9 MB. Free memory was 174.9 MB in the beginning and 130.9 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,696 INFO L168 Benchmark]: TraceAbstraction took 1497.29 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 130.2 MB in the beginning and 143.0 MB in the end (delta: -12.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:20:34,700 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 479.91 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 178.4 MB in the end (delta: -76.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.12 ms. Allocated memory is still 202.9 MB. Free memory was 178.4 MB in the beginning and 174.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 830.65 ms. Allocated memory is still 202.9 MB. Free memory was 174.9 MB in the beginning and 130.9 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1497.29 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 130.2 MB in the beginning and 143.0 MB in the end (delta: -12.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 239]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 211, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 96. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L232] float x = 0.0f / 0.0f; [L233] float y = __VERIFIER_nondet_float(); [L235] CALL isfinite_float(y) [L215] __int32_t ix; [L217] ieee_float_shape_type gf_u; [L218] gf_u.value = (x) [L219] EXPR gf_u.word [L219] (ix) = gf_u.word [L221] ix &= 0x7fffffff [L222] return (((ix) < 0x7f800000L)); [L235] RET isfinite_float(y) [L235] COND TRUE isfinite_float(y) [L236] CALL, EXPR __ieee754_hypotf(x, y) [L82] float a = x, b = y, t1, t2, y1, y2, w; [L83] __int32_t j, k, ha, hb; [L86] ieee_float_shape_type gf_u; [L87] gf_u.value = (x) [L88] EXPR gf_u.word [L88] (ha) = gf_u.word [L90] ha &= 0x7fffffffL [L92] ieee_float_shape_type gf_u; [L93] gf_u.value = (y) [L94] EXPR gf_u.word [L94] (hb) = gf_u.word [L96] hb &= 0x7fffffffL [L97] COND TRUE hb > ha [L98] a = y [L99] b = x [L100] j = ha [L101] ha = hb [L102] hb = j [L108] ieee_float_shape_type sf_u; [L109] sf_u.word = (ha) [L110] EXPR sf_u.value [L110] (a) = sf_u.value [L113] ieee_float_shape_type sf_u; [L114] sf_u.word = (hb) [L115] EXPR sf_u.value [L115] (b) = sf_u.value [L117] COND TRUE (ha - hb) > 0xf000000L [L118] return a + b; [L236] RET, EXPR __ieee754_hypotf(x, y) [L236] float res = __ieee754_hypotf(x, y); [L238] CALL, EXPR isnan_float(res) [L211] return x != x; [L238] RET, EXPR isnan_float(res) [L238] COND TRUE !isnan_float(res) [L239] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 105 SDslu, 5 SDs, 0 SdLazy, 141 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2376 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...