/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_0970b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:00,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:00,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:00,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:00,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:00,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:00,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:00,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:00,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:00,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:00,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:00,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:00,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:00,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:00,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:00,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:00,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:00,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:00,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:00,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:00,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:00,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:00,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:00,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:00,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:00,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:00,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:00,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:00,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:00,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:00,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:00,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:00,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:00,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:00,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:00,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:00,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:00,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:00,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:00,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:00,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:00,518 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 19:43:00,577 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:00,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:00,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:00,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:00,580 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:00,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:00,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:00,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:00,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:00,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:00,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:00,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:00,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:00,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:00,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:00,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:00,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:00,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:00,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:00,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:00,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:00,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:00,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:00,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:00,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:00,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:00,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:00,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:00,991 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:00,992 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:00,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0970b.c [2020-10-27 19:43:01,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d99a7d6e/f4d62cca6748495f8f145145a871e593/FLAGa05211928 [2020-10-27 19:43:01,803 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:01,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0970b.c [2020-10-27 19:43:01,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d99a7d6e/f4d62cca6748495f8f145145a871e593/FLAGa05211928 [2020-10-27 19:43:02,139 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d99a7d6e/f4d62cca6748495f8f145145a871e593 [2020-10-27 19:43:02,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:02,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:02,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:02,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:02,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:02,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1098b93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02, skipping insertion in model container [2020-10-27 19:43:02,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:02,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:02,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:02,444 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:02,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:02,517 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:02,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02 WrapperNode [2020-10-27 19:43:02,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:02,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:02,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:02,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:02,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (1/1) ... [2020-10-27 19:43:02,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:02,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:02,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:02,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:02,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (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 19:43:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2020-10-27 19:43:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10 [2020-10-27 19:43:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10 [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:03,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:03,275 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-10-27 19:43:03,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:03 BoogieIcfgContainer [2020-10-27 19:43:03,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:03,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:03,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:03,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:03,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:02" (1/3) ... [2020-10-27 19:43:03,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22599914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:03, skipping insertion in model container [2020-10-27 19:43:03,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:02" (2/3) ... [2020-10-27 19:43:03,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22599914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:03, skipping insertion in model container [2020-10-27 19:43:03,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:03" (3/3) ... [2020-10-27 19:43:03,286 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970b.c [2020-10-27 19:43:03,298 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:03,303 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:03,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:03,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:03,345 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:03,345 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:03,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:03,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:03,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:03,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:03,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-10-27 19:43:03,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 19:43:03,371 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:03,372 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] [2020-10-27 19:43:03,372 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:03,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:03,378 INFO L82 PathProgramCache]: Analyzing trace with hash -494260036, now seen corresponding path program 1 times [2020-10-27 19:43:03,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:03,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664708286] [2020-10-27 19:43:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:03,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:03,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:03,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 19:43:03,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-27 19:43:03,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:03,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:43:03,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:03,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:43:03,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:03,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:03,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:03,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:03,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:04,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 19:43:04,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:04,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:04,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:04,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:04,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:04,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:43:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:04,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:43:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:04,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:04,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:04,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:04,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:04,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 19:43:04,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:04,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:43:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:04,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 19:43:04,114 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 19:43:04,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664708286] [2020-10-27 19:43:04,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:04,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:04,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789837341] [2020-10-27 19:43:04,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:04,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:04,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:04,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:04,142 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 4 states. [2020-10-27 19:43:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:04,534 INFO L93 Difference]: Finished difference Result 113 states and 169 transitions. [2020-10-27 19:43:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:04,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-27 19:43:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:04,547 INFO L225 Difference]: With dead ends: 113 [2020-10-27 19:43:04,547 INFO L226 Difference]: Without dead ends: 55 [2020-10-27 19:43:04,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-27 19:43:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-27 19:43:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-27 19:43:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2020-10-27 19:43:04,604 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 23 [2020-10-27 19:43:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:04,605 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2020-10-27 19:43:04,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2020-10-27 19:43:04,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-27 19:43:04,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:04,607 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] [2020-10-27 19:43:04,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:04,608 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:04,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:04,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1360047468, now seen corresponding path program 1 times [2020-10-27 19:43:04,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:04,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979673227] [2020-10-27 19:43:04,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:04,663 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:04,664 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:04,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:04,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:04 BoogieIcfgContainer [2020-10-27 19:43:04,695 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:04,701 INFO L168 Benchmark]: Toolchain (without parser) took 2547.70 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 126.0 MB in the beginning and 131.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:04,702 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:04,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 112.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:04,705 INFO L168 Benchmark]: Boogie Preprocessor took 58.46 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 110.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:04,706 INFO L168 Benchmark]: RCFGBuilder took 698.35 ms. Allocated memory is still 151.0 MB. Free memory was 110.0 MB in the beginning and 116.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:04,707 INFO L168 Benchmark]: TraceAbstraction took 1417.09 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 116.2 MB in the beginning and 131.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:04,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 151.0 MB. Free memory is still 123.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 359.18 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 112.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.46 ms. Allocated memory is still 151.0 MB. Free memory was 112.3 MB in the beginning and 110.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 698.35 ms. Allocated memory is still 151.0 MB. Free memory was 110.0 MB in the beginning and 116.8 MB in the end (delta: -6.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1417.09 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 116.2 MB in the beginning and 131.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 16.2 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 someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseOr at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; [L172] double x = -1.0 / 0.0; [L173] CALL, EXPR __ieee754_log10(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 [L133] COND TRUE hx < 0x00100000 [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; [L173] RET, EXPR __ieee754_log10(x) [L173] double res = __ieee754_log10(x); [L176] CALL, EXPR isnan_double(res) [L163] return x != x; [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0970b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 12 SDslu, 56 SDs, 0 SdLazy, 69 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 2464 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...