/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_0685b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:33,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:33,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:33,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:33,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:33,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:33,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:33,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:33,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:33,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:33,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:33,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:33,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:33,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:33,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:33,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:33,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:33,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:33,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:33,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:33,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:33,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:33,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:33,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:33,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:33,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:33,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:33,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:33,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:33,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:33,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:33,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:33,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:33,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:33,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:33,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:33,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:33,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:33,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:33,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:33,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:33,984 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 19:42:34,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:34,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:34,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:34,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:34,027 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:34,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:34,027 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:34,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:34,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:34,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:34,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:34,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:34,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:34,030 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:34,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:34,030 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:34,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:34,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:34,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:34,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:34,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:34,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:34,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:34,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:34,033 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:34,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:34,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:34,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:34,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:34,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:34,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:34,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:34,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:34,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:34,492 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:34,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0685b.c [2020-10-27 19:42:34,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b6c9b83/08d6abe770f74fc6a3459fdca86ee8a2/FLAG33897aa15 [2020-10-27 19:42:35,233 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:35,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0685b.c [2020-10-27 19:42:35,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b6c9b83/08d6abe770f74fc6a3459fdca86ee8a2/FLAG33897aa15 [2020-10-27 19:42:35,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/21b6c9b83/08d6abe770f74fc6a3459fdca86ee8a2 [2020-10-27 19:42:35,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:35,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:35,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:35,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:35,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:35,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:35" (1/1) ... [2020-10-27 19:42:35,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c2a3e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:35, skipping insertion in model container [2020-10-27 19:42:35,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:35" (1/1) ... [2020-10-27 19:42:35,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:35,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:35,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:35,851 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:35,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:36,015 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:36,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36 WrapperNode [2020-10-27 19:42:36,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:36,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:36,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:36,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:36,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (1/1) ... [2020-10-27 19:42:36,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:36,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:36,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:36,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:36,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (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 19:42:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:36,174 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:36,177 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:36,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:37,155 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:37,156 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:37,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:37 BoogieIcfgContainer [2020-10-27 19:42:37,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:37,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:37,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:37,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:37,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:35" (1/3) ... [2020-10-27 19:42:37,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f82c426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:37, skipping insertion in model container [2020-10-27 19:42:37,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:36" (2/3) ... [2020-10-27 19:42:37,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f82c426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:37, skipping insertion in model container [2020-10-27 19:42:37,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:37" (3/3) ... [2020-10-27 19:42:37,167 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2020-10-27 19:42:37,177 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:37,181 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:37,192 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:37,223 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:37,223 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:37,223 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:37,223 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:37,223 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:37,223 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:37,224 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:37,224 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 19:42:37,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:42:37,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:37,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:42:37,254 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:37,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:37,261 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 19:42:37,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:37,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370253874] [2020-10-27 19:42:37,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:37,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:37,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:37,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:37,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:37,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:42:37,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:37,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-10-27 19:42:37,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:37,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:37,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:37,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:38,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:38,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:38,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:38,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:38,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:38,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 19:42:38,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:38,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:38,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:38,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:38,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:38,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:38,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:38,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:38,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:38,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 19:42:38,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:38,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:38,107 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 19:42:38,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370253874] [2020-10-27 19:42:38,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:38,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:38,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147008660] [2020-10-27 19:42:38,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:38,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:38,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:38,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:38,135 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 19:42:38,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:38,721 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 19:42:38,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:38,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:42:38,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:38,735 INFO L225 Difference]: With dead ends: 199 [2020-10-27 19:42:38,735 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 19:42:38,740 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 19:42:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 19:42:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 19:42:38,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 19:42:38,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 19:42:38,804 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 19:42:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:38,805 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 19:42:38,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 19:42:38,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:42:38,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:38,807 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] [2020-10-27 19:42:38,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:38,807 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:38,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 19:42:38,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:38,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875700669] [2020-10-27 19:42:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:38,907 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:38,908 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:38,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:38,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:38 BoogieIcfgContainer [2020-10-27 19:42:38,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:38,944 INFO L168 Benchmark]: Toolchain (without parser) took 3432.37 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 139.4 MB in the beginning and 136.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 34.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:38,945 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 131.6 MB in the end (delta: 74.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:38,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.38 ms. Allocated memory is still 158.3 MB. Free memory was 138.8 MB in the beginning and 139.7 MB in the end (delta: -827.3 kB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:38,948 INFO L168 Benchmark]: Boogie Preprocessor took 74.04 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 136.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:38,956 INFO L168 Benchmark]: RCFGBuilder took 1062.55 ms. Allocated memory is still 158.3 MB. Free memory was 136.6 MB in the beginning and 93.9 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:38,958 INFO L168 Benchmark]: TraceAbstraction took 1779.19 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 93.4 MB in the beginning and 136.9 MB in the end (delta: -43.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:38,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 158.3 MB. Free memory was 131.6 MB in the beginning and 131.6 MB in the end (delta: 74.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 498.38 ms. Allocated memory is still 158.3 MB. Free memory was 138.8 MB in the beginning and 139.7 MB in the end (delta: -827.3 kB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.04 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 136.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1062.55 ms. Allocated memory is still 158.3 MB. Free memory was 136.6 MB in the beginning and 93.9 MB in the end (delta: 42.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1779.19 ms. Allocated memory was 158.3 MB in the beginning and 190.8 MB in the end (delta: 32.5 MB). Free memory was 93.4 MB in the beginning and 136.9 MB in the end (delta: -43.6 MB). There was no memory consumed. 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. 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; [L253] double x = -1.0 / 0.0; [L254] double y = -1.0 / 0.0; [L256] 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; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -3 * pi_o_4 [L260] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0685b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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=105occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 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...