/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_0686a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:19,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:19,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:19,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:19,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:19,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:19,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:19,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:19,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:19,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:19,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:19,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:19,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:19,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:19,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:19,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:19,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:19,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:19,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:19,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:19,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:19,139 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:19,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:19,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:19,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:19,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:19,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:19,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:19,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:19,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:19,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:19,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:19,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:19,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:19,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:19,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:19,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:19,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:19,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:19,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:19,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:19,175 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 [2020-10-28 14:26:19,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:19,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:19,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:19,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:19,232 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:19,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:19,233 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:19,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:19,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:19,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:19,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:19,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:19,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:19,235 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:19,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:19,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:19,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:19,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:19,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:19,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:19,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:19,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:19,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:19,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:19,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:19,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:19,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:19,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:19,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:19,708 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:19,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0686a.c [2020-10-28 14:26:19,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b1efefd/02fb674e41714378a7d16b6f40491299/FLAGc9cf9e8fd [2020-10-28 14:26:20,532 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:20,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0686a.c [2020-10-28 14:26:20,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b1efefd/02fb674e41714378a7d16b6f40491299/FLAGc9cf9e8fd [2020-10-28 14:26:20,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/18b1efefd/02fb674e41714378a7d16b6f40491299 [2020-10-28 14:26:20,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:20,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:20,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:20,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:20,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:20,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:20" (1/1) ... [2020-10-28 14:26:20,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ed19dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:20, skipping insertion in model container [2020-10-28 14:26:20,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:20" (1/1) ... [2020-10-28 14:26:20,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:20,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:21,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:21,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:21,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:21,377 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:21,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21 WrapperNode [2020-10-28 14:26:21,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:21,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:21,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:21,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:21,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (1/1) ... [2020-10-28 14:26:21,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:21,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:21,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:21,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:21,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (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 [2020-10-28 14:26:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:21,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:21,637 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:21,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:21,639 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:21,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:21,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:21,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:21,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:22,629 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:22,630 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:22,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:22 BoogieIcfgContainer [2020-10-28 14:26:22,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:22,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:22,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:22,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:22,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:20" (1/3) ... [2020-10-28 14:26:22,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c096073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:22, skipping insertion in model container [2020-10-28 14:26:22,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:21" (2/3) ... [2020-10-28 14:26:22,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c096073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:22, skipping insertion in model container [2020-10-28 14:26:22,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:22" (3/3) ... [2020-10-28 14:26:22,641 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2020-10-28 14:26:22,652 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:22,657 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:22,670 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:22,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:22,698 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:22,699 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:22,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:22,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:22,699 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:22,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:22,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-28 14:26:22,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:26:22,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:22,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:22,726 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:22,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:22,733 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-28 14:26:22,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:22,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [609221325] [2020-10-28 14:26:22,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:22,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:23,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:23,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:23,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:26:23,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:23,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-28 14:26:23,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:23,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:23,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 14:26:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:23,509 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:26:23,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:23,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:23,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:23,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:23,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:23,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 14:26:23,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:23,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:23,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:23,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:23,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:23,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:23,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:23,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:23,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:23,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 14:26:23,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:23,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:26:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:23,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:26:23,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [609221325] [2020-10-28 14:26:23,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:23,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:23,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703935613] [2020-10-28 14:26:23,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:23,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:23,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:23,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:23,719 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-28 14:26:23,853 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 14:26:24,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:24,269 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-28 14:26:24,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:24,271 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:26:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:24,283 INFO L225 Difference]: With dead ends: 199 [2020-10-28 14:26:24,283 INFO L226 Difference]: Without dead ends: 98 [2020-10-28 14:26:24,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:26:24,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-28 14:26:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-28 14:26:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-28 14:26:24,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-28 14:26:24,348 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-28 14:26:24,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:24,348 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-28 14:26:24,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-28 14:26:24,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 14:26:24,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:24,350 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] [2020-10-28 14:26:24,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:24,350 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:24,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-28 14:26:24,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:24,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626543996] [2020-10-28 14:26:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:24,425 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:24,426 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:24,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:24,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:24 BoogieIcfgContainer [2020-10-28 14:26:24,464 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:24,468 INFO L168 Benchmark]: Toolchain (without parser) took 3618.51 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 130.9 MB in the beginning and 105.1 MB in the end (delta: 25.8 MB). Peak memory consumption was 70.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:24,469 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:24,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.37 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 115.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:24,472 INFO L168 Benchmark]: Boogie Preprocessor took 159.37 ms. Allocated memory is still 156.2 MB. Free memory was 115.9 MB in the beginning and 112.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:24,473 INFO L168 Benchmark]: RCFGBuilder took 1089.81 ms. Allocated memory is still 156.2 MB. Free memory was 112.8 MB in the beginning and 106.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:24,475 INFO L168 Benchmark]: TraceAbstraction took 1830.98 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 105.9 MB in the beginning and 105.1 MB in the end (delta: 798.5 kB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:24,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 130.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 524.37 ms. Allocated memory is still 156.2 MB. Free memory was 130.3 MB in the beginning and 115.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 159.37 ms. Allocated memory is still 156.2 MB. Free memory was 115.9 MB in the beginning and 112.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1089.81 ms. Allocated memory is still 156.2 MB. Free memory was 112.8 MB in the beginning and 106.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1830.98 ms. Allocated memory was 156.2 MB in the beginning and 199.2 MB in the end (delta: 43.0 MB). Free memory was 105.9 MB in the beginning and 105.1 MB in the end (delta: 798.5 kB). 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 someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. 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 = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L255] 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; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0686a.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: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 0.7s 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...