/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_0681b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:23,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:24,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:24,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:24,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:24,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:24,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:24,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:24,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:24,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:24,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:24,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:24,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:24,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:24,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:24,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:24,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:24,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:24,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:24,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:24,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:24,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:24,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:24,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:24,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:24,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:24,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:24,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:24,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:24,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:24,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:24,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:24,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:24,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:24,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:24,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:24,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:24,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:24,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:24,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:24,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:24,185 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 19:42:24,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:24,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:24,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:24,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:24,238 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:24,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:24,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:24,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:24,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:24,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:24,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:24,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:24,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:24,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:24,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:24,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:24,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:24,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:24,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:24,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:24,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:24,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:24,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:24,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:24,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:24,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:24,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:24,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:24,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:24,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:24,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:24,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:24,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:24,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:24,714 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:24,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-10-27 19:42:24,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19194b0fe/768fd82b82e047e8b9e2ea424f0c9914/FLAGb7dcce8e8 [2020-10-27 19:42:25,421 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:25,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0681b.c [2020-10-27 19:42:25,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19194b0fe/768fd82b82e047e8b9e2ea424f0c9914/FLAGb7dcce8e8 [2020-10-27 19:42:25,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19194b0fe/768fd82b82e047e8b9e2ea424f0c9914 [2020-10-27 19:42:25,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:25,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:25,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:25,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:25,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:25,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:25" (1/1) ... [2020-10-27 19:42:25,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1beeac91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:25, skipping insertion in model container [2020-10-27 19:42:25,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:25" (1/1) ... [2020-10-27 19:42:25,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:25,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:26,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:26,196 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:26,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:26,293 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:26,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26 WrapperNode [2020-10-27 19:42:26,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:26,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:26,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:26,295 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:26,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (1/1) ... [2020-10-27 19:42:26,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:26,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:26,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:26,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:26,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (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 19:42:26,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:42:26,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:26,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:27,212 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:27,213 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-27 19:42:27,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:27 BoogieIcfgContainer [2020-10-27 19:42:27,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:27,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:27,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:27,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:27,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:25" (1/3) ... [2020-10-27 19:42:27,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e112fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:27, skipping insertion in model container [2020-10-27 19:42:27,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:26" (2/3) ... [2020-10-27 19:42:27,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e112fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:27, skipping insertion in model container [2020-10-27 19:42:27,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:27" (3/3) ... [2020-10-27 19:42:27,227 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2020-10-27 19:42:27,241 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:27,247 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:27,261 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:27,288 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:27,288 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:27,289 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:27,289 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:27,289 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:27,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:27,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:27,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:27,308 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states. [2020-10-27 19:42:27,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:42:27,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:27,316 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 19:42:27,316 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:27,323 INFO L82 PathProgramCache]: Analyzing trace with hash 760112060, now seen corresponding path program 1 times [2020-10-27 19:42:27,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:27,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [424865754] [2020-10-27 19:42:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:27,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:27,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:27,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:42:27,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 19:42:27,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:27,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:27,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:28,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:28,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:28,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:28,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:28,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-27 19:42:28,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:28,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:28,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:42:28,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:28,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:28,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:28,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:28,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:28,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 19:42:28,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:28,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:28,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:28,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:28,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:28,162 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 19:42:28,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [424865754] [2020-10-27 19:42:28,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:28,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:28,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000688225] [2020-10-27 19:42:28,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:28,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:28,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:28,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:28,193 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 4 states. [2020-10-27 19:42:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:28,722 INFO L93 Difference]: Finished difference Result 217 states and 341 transitions. [2020-10-27 19:42:28,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:28,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:42:28,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:28,734 INFO L225 Difference]: With dead ends: 217 [2020-10-27 19:42:28,735 INFO L226 Difference]: Without dead ends: 107 [2020-10-27 19:42:28,739 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 19:42:28,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-27 19:42:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-10-27 19:42:28,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-27 19:42:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 147 transitions. [2020-10-27 19:42:28,797 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 147 transitions. Word has length 20 [2020-10-27 19:42:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:28,797 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 147 transitions. [2020-10-27 19:42:28,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 147 transitions. [2020-10-27 19:42:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:42:28,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:28,799 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 19:42:28,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:28,800 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:28,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:28,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1505631205, now seen corresponding path program 1 times [2020-10-27 19:42:28,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:28,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [269872876] [2020-10-27 19:42:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:28,910 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:28,911 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:28,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:28,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:28 BoogieIcfgContainer [2020-10-27 19:42:28,942 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:28,947 INFO L168 Benchmark]: Toolchain (without parser) took 3153.02 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 126.4 MB in the beginning and 169.3 MB in the end (delta: -43.0 MB). Peak memory consumption was 83.9 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:28,948 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:28,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:28,956 INFO L168 Benchmark]: Boogie Preprocessor took 78.91 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 108.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:28,957 INFO L168 Benchmark]: RCFGBuilder took 840.47 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 97.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:28,959 INFO L168 Benchmark]: TraceAbstraction took 1725.12 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 96.8 MB in the beginning and 169.3 MB in the end (delta: -72.5 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:28,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 492.95 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.91 ms. Allocated memory is still 151.0 MB. Free memory was 111.0 MB in the beginning and 108.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 840.47 ms. Allocated memory is still 151.0 MB. Free memory was 107.9 MB in the beginning and 97.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1725.12 ms. Allocated memory was 151.0 MB in the beginning and 192.9 MB in the end (delta: 41.9 MB). Free memory was 96.8 MB in the beginning and 169.3 MB in the end (delta: -72.5 MB). Peak memory consumption was 53.3 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 164, overapproximation of someUnaryDOUBLEoperation at line 266, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 269. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L265] double x = 0.0; [L266] double y = -0.0; [L267] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L267] RET, EXPR __ieee754_atan2(y, x) [L267] double res = __ieee754_atan2(y, x); [L269] EXPR res == -0.0 && __signbit_double(res) == 1 [L269] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L270] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0681b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 146 SDtfs, 12 SDslu, 133 SDs, 0 SdLazy, 144 SolverSat, 16 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=114occurred 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, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 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...