/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=SHALLOWEST --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_0660b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:24,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:24,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:24,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:24,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:24,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:24,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:24,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:24,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:24,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:24,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:24,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:24,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:24,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:24,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:24,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:24,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:24,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:24,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:24,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:24,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:24,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:24,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:24,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:24,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:24,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:24,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:24,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:24,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:24,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:24,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:24,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:24,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:24,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:24,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:24,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:24,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:24,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:24,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:24,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:24,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:24,243 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 01:01:24,299 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:24,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:24,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:24,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:24,302 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:24,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:24,302 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:24,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:24,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:24,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:24,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:24,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:24,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:24,304 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:24,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:24,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:24,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:24,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:24,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:24,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:24,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:24,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:24,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:24,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:24,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:24,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:24,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:24,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:24,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:24,307 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:24,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:24,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:24,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:24,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:24,719 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:24,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-27 01:01:24,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6cf80f/f4e273172e124ef6a234316cd57f44b5/FLAGe1b31f26a [2020-10-27 01:01:25,436 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:25,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-27 01:01:25,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6cf80f/f4e273172e124ef6a234316cd57f44b5/FLAGe1b31f26a [2020-10-27 01:01:25,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/acd6cf80f/f4e273172e124ef6a234316cd57f44b5 [2020-10-27 01:01:25,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:25,819 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:25,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:25,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:25,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:25,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:25" (1/1) ... [2020-10-27 01:01:25,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7deee189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:25, skipping insertion in model container [2020-10-27 01:01:25,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:25" (1/1) ... [2020-10-27 01:01:25,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:25,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:26,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:26,288 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:26,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:26,379 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:26,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26 WrapperNode [2020-10-27 01:01:26,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:26,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:26,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:26,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:26,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (1/1) ... [2020-10-27 01:01:26,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:26,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:26,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:26,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:26,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (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 01:01:26,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:26,589 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:27,294 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:27,295 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:27,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:27 BoogieIcfgContainer [2020-10-27 01:01:27,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:27,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:27,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:27,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:27,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:25" (1/3) ... [2020-10-27 01:01:27,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1570b660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:27, skipping insertion in model container [2020-10-27 01:01:27,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:26" (2/3) ... [2020-10-27 01:01:27,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1570b660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:27, skipping insertion in model container [2020-10-27 01:01:27,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:27" (3/3) ... [2020-10-27 01:01:27,306 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2020-10-27 01:01:27,319 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:27,325 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:27,339 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:27,369 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:27,369 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:27,369 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:27,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:27,370 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:27,370 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:27,370 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:27,370 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:27,391 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-27 01:01:27,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:01:27,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:27,399 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 01:01:27,399 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:27,406 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-27 01:01:27,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:27,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547681754] [2020-10-27 01:01:27,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:27,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:27,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:28,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:28,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 01:01:28,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:28,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-27 01:01:28,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:28,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 01:01:28,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:28,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:01:28,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:28,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:28,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:28,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:28,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:28,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 01:01:28,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:28,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:28,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:01:28,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 01:01:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:28,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:28,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:28,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:28,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:28,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:01:28,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:28,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:28,411 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 01:01:28,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547681754] [2020-10-27 01:01:28,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:28,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:28,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174981631] [2020-10-27 01:01:28,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:28,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:28,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:28,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:28,439 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-27 01:01:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:28,946 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-27 01:01:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:28,948 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 01:01:28,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:28,959 INFO L225 Difference]: With dead ends: 205 [2020-10-27 01:01:28,960 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 01:01:28,964 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 01:01:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 01:01:29,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-27 01:01:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 01:01:29,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-27 01:01:29,023 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-27 01:01:29,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:29,024 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-27 01:01:29,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-27 01:01:29,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 01:01:29,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:29,025 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 01:01:29,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:29,026 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:29,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:29,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-27 01:01:29,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:29,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1057076928] [2020-10-27 01:01:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:29,122 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:29,123 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:29,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:29,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:29 BoogieIcfgContainer [2020-10-27 01:01:29,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:29,164 INFO L168 Benchmark]: Toolchain (without parser) took 3347.92 ms. Allocated memory was 157.3 MB in the beginning and 198.2 MB in the end (delta: 40.9 MB). Free memory was 131.0 MB in the beginning and 99.5 MB in the end (delta: 31.5 MB). Peak memory consumption was 73.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:29,166 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:29,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.78 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 115.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:29,169 INFO L168 Benchmark]: Boogie Preprocessor took 120.83 ms. Allocated memory is still 157.3 MB. Free memory was 115.8 MB in the beginning and 112.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:29,176 INFO L168 Benchmark]: RCFGBuilder took 793.59 ms. Allocated memory is still 157.3 MB. Free memory was 112.9 MB in the beginning and 103.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:29,178 INFO L168 Benchmark]: TraceAbstraction took 1861.10 ms. Allocated memory was 157.3 MB in the beginning and 198.2 MB in the end (delta: 40.9 MB). Free memory was 103.4 MB in the beginning and 99.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:29,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 157.3 MB. Free memory is still 130.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 556.78 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 115.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.83 ms. Allocated memory is still 157.3 MB. Free memory was 115.8 MB in the beginning and 112.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 793.59 ms. Allocated memory is still 157.3 MB. Free memory was 112.9 MB in the beginning and 103.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1861.10 ms. Allocated memory was 157.3 MB in the beginning and 198.2 MB in the end (delta: 40.9 MB). Free memory was 103.4 MB in the beginning and 99.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 44.8 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 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 260. 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; [L252] double x = __VERIFIER_nondet_double(); [L253] double y = 0.0; [L255] COND TRUE x < 0.0 [L257] 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; [L257] RET, EXPR __ieee754_atan2(y, x) [L257] double res = __ieee754_atan2(y, x); [L260] COND TRUE res != pi [L261] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0660b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 SolverSat, 14 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=107occurred 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, 0.2s 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...