/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_0662b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:06:25,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:06:25,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:06:25,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:06:25,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:06:25,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:06:25,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:06:25,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:06:25,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:06:25,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:06:25,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:06:25,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:06:25,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:06:25,605 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:06:25,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:06:25,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:06:25,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:06:25,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:06:25,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:06:25,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:06:25,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:06:25,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:06:25,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:06:25,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:06:25,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:06:25,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:06:25,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:06:25,652 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:06:25,653 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:06:25,654 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:06:25,654 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:06:25,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:06:25,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:06:25,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:06:25,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:06:25,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:06:25,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:06:25,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:06:25,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:06:25,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:06:25,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:06:25,667 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 [2020-10-29 09:06:25,730 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:06:25,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:06:25,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:06:25,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:06:25,736 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:06:25,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:06:25,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:06:25,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:06:25,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:06:25,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:06:25,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:06:25,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:06:25,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:06:25,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:06:25,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:06:25,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:06:25,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:06:25,741 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:06:25,741 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:06:25,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:06:25,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:06:25,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:06:25,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:06:25,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:06:25,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:06:25,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:06:25,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:06:25,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:06:25,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:06:25,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:06:26,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:06:26,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:06:26,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:06:26,284 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:06:26,285 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:06:26,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-29 09:06:26,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a9a792ef/7db94eea555044228f8474c2230e5455/FLAGb8e1ccb3d [2020-10-29 09:06:26,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:06:26,988 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-10-29 09:06:27,000 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a9a792ef/7db94eea555044228f8474c2230e5455/FLAGb8e1ccb3d [2020-10-29 09:06:27,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1a9a792ef/7db94eea555044228f8474c2230e5455 [2020-10-29 09:06:27,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:06:27,358 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:06:27,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:27,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:06:27,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:06:27,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d9ac3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27, skipping insertion in model container [2020-10-29 09:06:27,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:06:27,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:06:27,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:27,738 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:06:27,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:27,888 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:06:27,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27 WrapperNode [2020-10-29 09:06:27,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:27,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:06:27,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:06:27,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:06:27,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (1/1) ... [2020-10-29 09:06:27,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:06:27,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:06:27,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:06:27,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:06:27,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (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 [2020-10-29 09:06:28,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:06:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:06:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:06:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-29 09:06:28,072 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-29 09:06:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-29 09:06:28,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:06:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:06:28,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:06:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:06:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:06:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:06:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-29 09:06:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:06:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:06:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:06:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:06:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:06:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-29 09:06:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-29 09:06:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:06:28,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:06:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:06:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:06:28,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:06:29,120 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:06:29,120 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-29 09:06:29,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:29 BoogieIcfgContainer [2020-10-29 09:06:29,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:06:29,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:06:29,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:06:29,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:06:29,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:06:27" (1/3) ... [2020-10-29 09:06:29,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180c0911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:29, skipping insertion in model container [2020-10-29 09:06:29,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:27" (2/3) ... [2020-10-29 09:06:29,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180c0911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:29, skipping insertion in model container [2020-10-29 09:06:29,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:29" (3/3) ... [2020-10-29 09:06:29,136 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2020-10-29 09:06:29,149 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:06:29,155 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:06:29,169 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:06:29,199 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:06:29,199 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:06:29,199 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:06:29,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:06:29,200 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:06:29,200 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:06:29,200 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:06:29,200 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:06:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-29 09:06:29,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 09:06:29,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:29,229 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] [2020-10-29 09:06:29,229 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:29,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:29,242 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-29 09:06:29,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:29,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297503873] [2020-10-29 09:06:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:29,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:29,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:29,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 09:06:29,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-29 09:06:29,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:29,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:29,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 09:06:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:06:30,065 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:06:30,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:06:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:30,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:06:30,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:06:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 09:06:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:30,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:30,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:30,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 09:06:30,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 09:06:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:30,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:30,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:30,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:30,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:06:30,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:30,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 09:06:30,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:30,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:30,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:30,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:06:30,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:30,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 09:06:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 09:06:30,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1297503873] [2020-10-29 09:06:30,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:06:30,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:06:30,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179193393] [2020-10-29 09:06:30,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:06:30,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:06:30,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:06:30,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:06:30,263 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-29 09:06:30,439 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 09:06:31,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:06:31,173 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-29 09:06:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:06:31,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-29 09:06:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:06:31,187 INFO L225 Difference]: With dead ends: 205 [2020-10-29 09:06:31,188 INFO L226 Difference]: Without dead ends: 99 [2020-10-29 09:06:31,193 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 [2020-10-29 09:06:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-29 09:06:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-29 09:06:31,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-29 09:06:31,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-29 09:06:31,263 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-29 09:06:31,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:06:31,264 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-29 09:06:31,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:06:31,264 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-29 09:06:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 09:06:31,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:31,265 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] [2020-10-29 09:06:31,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:06:31,266 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:31,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-29 09:06:31,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:31,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526479069] [2020-10-29 09:06:31,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:06:31,359 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:06:31,360 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:06:31,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:06:31,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:06:31 BoogieIcfgContainer [2020-10-29 09:06:31,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:06:31,388 INFO L168 Benchmark]: Toolchain (without parser) took 4036.94 ms. Allocated memory is still 158.3 MB. Free memory was 134.7 MB in the beginning and 90.7 MB in the end (delta: 44.0 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:31,388 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 125.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:31,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.54 ms. Allocated memory is still 158.3 MB. Free memory was 134.1 MB in the beginning and 119.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:31,390 INFO L168 Benchmark]: Boogie Preprocessor took 86.94 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 116.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:31,391 INFO L168 Benchmark]: RCFGBuilder took 1143.47 ms. Allocated memory is still 158.3 MB. Free memory was 116.6 MB in the beginning and 105.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:31,392 INFO L168 Benchmark]: TraceAbstraction took 2261.67 ms. Allocated memory is still 158.3 MB. Free memory was 105.4 MB in the beginning and 90.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:31,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 125.8 MB. Free memory is still 104.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 529.54 ms. Allocated memory is still 158.3 MB. Free memory was 134.1 MB in the beginning and 119.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 86.94 ms. Allocated memory is still 158.3 MB. Free memory was 119.6 MB in the beginning and 116.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1143.47 ms. Allocated memory is still 158.3 MB. Free memory was 116.6 MB in the beginning and 105.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2261.67 ms. Allocated memory is still 158.3 MB. Free memory was 105.4 MB in the beginning and 90.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.2 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 261. 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 = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L258] 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; [L258] RET, EXPR __ieee754_atan2(y, x) [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 [L262] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0662b.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: 2.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.9s, 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, 0.5s 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=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...