/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_0660b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:25:52,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:25:52,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:25:52,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:25:52,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:25:52,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:25:52,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:25:52,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:25:52,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:25:52,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:25:52,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:25:52,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:25:52,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:25:52,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:25:52,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:25:52,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:25:52,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:25:52,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:25:52,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:25:52,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:25:52,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:25:52,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:25:52,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:25:52,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:25:52,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:25:52,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:25:52,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:25:52,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:25:52,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:25:52,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:25:52,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:25:52,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:25:52,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:25:52,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:25:52,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:25:52,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:25:52,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:25:52,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:25:52,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:25:52,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:25:52,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:25:52,514 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 14:25:52,541 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:25:52,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:25:52,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:25:52,544 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:25:52,544 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:25:52,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:25:52,545 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:25:52,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:25:52,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:25:52,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:25:52,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:25:52,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:25:52,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:25:52,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:25:52,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:25:52,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:25:52,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:25:52,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:25:52,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:25:52,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:25:52,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:25:52,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:25:52,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:25:52,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:25:52,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:25:52,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:25:52,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:25:52,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:25:52,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:25:52,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:25:52,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:25:52,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:25:52,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:25:52,970 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:25:52,970 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:25:52,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-28 14:25:53,062 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22afbc852/0cc8d4a180a5470284d3be7c437abf46/FLAG1f3fe9e3b [2020-10-28 14:25:53,734 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:25:53,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-28 14:25:53,747 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22afbc852/0cc8d4a180a5470284d3be7c437abf46/FLAG1f3fe9e3b [2020-10-28 14:25:54,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22afbc852/0cc8d4a180a5470284d3be7c437abf46 [2020-10-28 14:25:54,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:25:54,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:25:54,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:25:54,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:25:54,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:25:54,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8b87d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54, skipping insertion in model container [2020-10-28 14:25:54,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:25:54,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:25:54,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:25:54,586 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:25:54,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:25:54,663 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:25:54,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54 WrapperNode [2020-10-28 14:25:54,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:25:54,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:25:54,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:25:54,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:25:54,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (1/1) ... [2020-10-28 14:25:54,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:25:54,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:25:54,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:25:54,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:25:54,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (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 14:25:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:25:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:25:54,838 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:25:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:25:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:25:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:25:54,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:25:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:25:54,839 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:25:54,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:25:54,841 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:25:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:25:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:25:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:25:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:25:55,644 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:25:55,645 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:25:55,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:25:55 BoogieIcfgContainer [2020-10-28 14:25:55,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:25:55,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:25:55,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:25:55,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:25:55,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:25:54" (1/3) ... [2020-10-28 14:25:55,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b18f407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:25:55, skipping insertion in model container [2020-10-28 14:25:55,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:54" (2/3) ... [2020-10-28 14:25:55,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b18f407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:25:55, skipping insertion in model container [2020-10-28 14:25:55,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:25:55" (3/3) ... [2020-10-28 14:25:55,656 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2020-10-28 14:25:55,668 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:25:55,674 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:25:55,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:25:55,714 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:25:55,715 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:25:55,715 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:25:55,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:25:55,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:25:55,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:25:55,716 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:25:55,716 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:25:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-28 14:25:55,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:25:55,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:25:55,743 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] [2020-10-28 14:25:55,743 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:25:55,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:25:55,750 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-28 14:25:55,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:25:55,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141823282] [2020-10-28 14:25:55,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:25:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:25:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:25:56,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:25:56,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:25:56,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 14:25:56,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:25:56,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-28 14:25:56,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:25:56,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:25:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:25:56,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 14:25:56,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:25:56,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:25:56,541 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:25:56,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:25:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:25:56,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:25:56,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:25:56,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:25:56,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:25:56,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 14:25:56,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:25:56,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:25:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:25:56,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:25:56,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:25:56,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:25:56,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:25:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:25:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:25:56,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:25:56,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:25:56,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:25:56,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:25:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 14:25:56,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:25:56,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:25:56,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:25:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:25:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:25:56,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:25:56,712 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 14:25:56,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141823282] [2020-10-28 14:25:56,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:25:56,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:25:56,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325317201] [2020-10-28 14:25:56,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:25:56,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:25:56,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:25:56,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:25:56,740 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-28 14:25:56,949 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 14:25:57,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:25:57,514 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-28 14:25:57,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:25:57,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-28 14:25:57,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:25:57,528 INFO L225 Difference]: With dead ends: 205 [2020-10-28 14:25:57,528 INFO L226 Difference]: Without dead ends: 99 [2020-10-28 14:25:57,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:25:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-28 14:25:57,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-28 14:25:57,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-28 14:25:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-28 14:25:57,591 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-28 14:25:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:25:57,591 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-28 14:25:57,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:25:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-28 14:25:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 14:25:57,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:25:57,593 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] [2020-10-28 14:25:57,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:25:57,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:25:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:25:57,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-28 14:25:57,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:25:57,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1867239237] [2020-10-28 14:25:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:25:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:25:57,671 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:25:57,671 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:25:57,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:25:57,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:25:57 BoogieIcfgContainer [2020-10-28 14:25:57,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:25:57,717 INFO L168 Benchmark]: Toolchain (without parser) took 3606.61 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 134.2 MB in the beginning and 99.5 MB in the end (delta: 34.7 MB). Peak memory consumption was 68.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:25:57,717 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 159.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:25:57,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 547.15 ms. Allocated memory is still 159.4 MB. Free memory was 133.5 MB in the beginning and 119.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:25:57,720 INFO L168 Benchmark]: Boogie Preprocessor took 92.78 ms. Allocated memory is still 159.4 MB. Free memory was 119.2 MB in the beginning and 116.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:25:57,721 INFO L168 Benchmark]: RCFGBuilder took 887.54 ms. Allocated memory is still 159.4 MB. Free memory was 116.1 MB in the beginning and 110.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:25:57,723 INFO L168 Benchmark]: TraceAbstraction took 2063.39 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 109.5 MB in the beginning and 99.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:25:57,733 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 159.4 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 547.15 ms. Allocated memory is still 159.4 MB. Free memory was 133.5 MB in the beginning and 119.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 92.78 ms. Allocated memory is still 159.4 MB. Free memory was 119.2 MB in the beginning and 116.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 887.54 ms. Allocated memory is still 159.4 MB. Free memory was 116.1 MB in the beginning and 110.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2063.39 ms. Allocated memory was 159.4 MB in the beginning and 191.9 MB in the end (delta: 32.5 MB). Free memory was 109.5 MB in the beginning and 99.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 43.1 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: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.8s, 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, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s 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, 0.1s SatisfiabilityAnalysisTime, 0.7s 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...