/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_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:23,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:23,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:23,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:23,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:23,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:23,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:23,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:23,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:23,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:23,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:23,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:23,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:23,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:23,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:23,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:23,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:23,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:23,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:23,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:23,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:23,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:23,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:23,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:23,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:23,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:23,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:23,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:23,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:23,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:23,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:23,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:23,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:23,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:23,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:23,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:23,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:23,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:23,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:23,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:23,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:23,301 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 19:43:23,353 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:23,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:23,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:23,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:23,359 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:23,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:23,359 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:23,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:23,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:23,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:23,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:23,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:23,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:23,362 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:23,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:23,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:23,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:23,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:23,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:23,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:23,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:23,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:23,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:23,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:23,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:23,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:23,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:23,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:23,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:23,365 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:23,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:23,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:23,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:23,848 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:23,849 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:23,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-10-27 19:43:23,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6f6ec9/421350f2602c4781ab545fdecdc623ab/FLAGd181d6711 [2020-10-27 19:43:24,610 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:24,611 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-10-27 19:43:24,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6f6ec9/421350f2602c4781ab545fdecdc623ab/FLAGd181d6711 [2020-10-27 19:43:24,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33a6f6ec9/421350f2602c4781ab545fdecdc623ab [2020-10-27 19:43:24,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:24,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:24,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:24,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:24,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:24,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f7f0b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24, skipping insertion in model container [2020-10-27 19:43:24,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:25,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:25,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:25,249 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:25,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:25,318 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:25,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25 WrapperNode [2020-10-27 19:43:25,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:25,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:25,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:25,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:25,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:25,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:25,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:25,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:25,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (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 19:43:25,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:25,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:25,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:25,484 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 19:43:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:43:25,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:25,485 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:25,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:25,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:25,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:26,403 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:26,403 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:43:26,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:26 BoogieIcfgContainer [2020-10-27 19:43:26,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:26,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:26,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:26,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:26,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:24" (1/3) ... [2020-10-27 19:43:26,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5408d2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:26, skipping insertion in model container [2020-10-27 19:43:26,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (2/3) ... [2020-10-27 19:43:26,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5408d2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:26, skipping insertion in model container [2020-10-27 19:43:26,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:26" (3/3) ... [2020-10-27 19:43:26,418 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-10-27 19:43:26,435 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:26,442 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:26,458 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:26,505 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:26,505 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:26,505 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:26,506 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:26,506 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:26,506 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:26,506 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:26,506 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-27 19:43:26,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:43:26,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:26,539 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 19:43:26,539 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:26,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:26,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1874786986, now seen corresponding path program 1 times [2020-10-27 19:43:26,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:26,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981713700] [2020-10-27 19:43:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:43:26,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:26,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 209 [2020-10-27 19:43:26,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:43:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:27,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:27,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:27,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:27,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:27,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:27,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:43:27,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:27,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:27,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:27,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:27,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 19:43:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:27,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:27,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:27,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:27,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:27,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:27,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 19:43:27,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:43:27,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:27,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:27,148 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 19:43:27,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981713700] [2020-10-27 19:43:27,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:27,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:27,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942108083] [2020-10-27 19:43:27,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:27,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:27,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:27,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:27,184 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 4 states. [2020-10-27 19:43:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:27,550 INFO L93 Difference]: Finished difference Result 147 states and 238 transitions. [2020-10-27 19:43:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:27,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:43:27,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:27,563 INFO L225 Difference]: With dead ends: 147 [2020-10-27 19:43:27,563 INFO L226 Difference]: Without dead ends: 70 [2020-10-27 19:43:27,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-27 19:43:27,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-27 19:43:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-27 19:43:27,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2020-10-27 19:43:27,619 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 20 [2020-10-27 19:43:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:27,620 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2020-10-27 19:43:27,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2020-10-27 19:43:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:43:27,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:27,622 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] [2020-10-27 19:43:27,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:27,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:27,623 INFO L82 PathProgramCache]: Analyzing trace with hash -83505235, now seen corresponding path program 1 times [2020-10-27 19:43:27,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:27,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870905835] [2020-10-27 19:43:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:27,701 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:27,704 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:27,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:27,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:27 BoogieIcfgContainer [2020-10-27 19:43:27,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:27,747 INFO L168 Benchmark]: Toolchain (without parser) took 2789.61 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 100.6 MB in the beginning and 89.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 51.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,748 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:27,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.87 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 86.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,751 INFO L168 Benchmark]: Boogie Preprocessor took 79.34 ms. Allocated memory is still 125.8 MB. Free memory was 86.4 MB in the beginning and 84.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,752 INFO L168 Benchmark]: RCFGBuilder took 1004.97 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 84.0 MB in the beginning and 123.0 MB in the end (delta: -39.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,753 INFO L168 Benchmark]: TraceAbstraction took 1332.36 ms. Allocated memory is still 165.7 MB. Free memory was 122.6 MB in the beginning and 89.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 125.8 MB. Free memory is still 85.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 359.87 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 86.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 79.34 ms. Allocated memory is still 125.8 MB. Free memory was 86.4 MB in the beginning and 84.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1004.97 ms. Allocated memory was 125.8 MB in the beginning and 165.7 MB in the end (delta: 39.8 MB). Free memory was 84.0 MB in the beginning and 123.0 MB in the end (delta: -39.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1332.36 ms. Allocated memory is still 165.7 MB. Free memory was 122.6 MB in the beginning and 89.9 MB in the end (delta: 32.6 MB). Peak memory consumption was 33.1 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 bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1130a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 16 SDslu, 84 SDs, 0 SdLazy, 103 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 0.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1330 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...