/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:06,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:06,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:06,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:06,647 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:06,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:06,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:06,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:06,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:06,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:06,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:06,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:06,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:06,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:06,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:06,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:06,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:06,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:06,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:06,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:06,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:06,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:06,710 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:06,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:06,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:06,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:06,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:06,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:06,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:06,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:06,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:06,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:06,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:06,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:06,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:06,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:06,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:06,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:06,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:06,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:06,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:06,764 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 19:42:06,817 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:06,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:06,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:06,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:06,824 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:06,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:06,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:06,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:06,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:06,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:06,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:06,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:06,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:06,827 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:06,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:06,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:06,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:06,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:06,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:06,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:06,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:06,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:06,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:06,829 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:06,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:06,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:06,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:06,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:06,830 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:06,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:07,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:07,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:07,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:07,306 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:07,307 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:07,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-27 19:42:07,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e19bbbd45/106da08e06554322ae891d1c6ef6a153/FLAGd75148aec [2020-10-27 19:42:08,050 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:08,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0660b.c [2020-10-27 19:42:08,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e19bbbd45/106da08e06554322ae891d1c6ef6a153/FLAGd75148aec [2020-10-27 19:42:08,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e19bbbd45/106da08e06554322ae891d1c6ef6a153 [2020-10-27 19:42:08,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:08,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:08,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:08,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:08,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:08,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a34070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08, skipping insertion in model container [2020-10-27 19:42:08,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:08,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:08,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:08,750 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:08,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:08,841 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:08,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08 WrapperNode [2020-10-27 19:42:08,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:08,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:08,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:08,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:08,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... [2020-10-27 19:42:08,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:08,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:08,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:08,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:08,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:09,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:09,036 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:09,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:09,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:09,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:09,871 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:09,872 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:09,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:09 BoogieIcfgContainer [2020-10-27 19:42:09,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:09,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:09,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:09,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:08" (1/3) ... [2020-10-27 19:42:09,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db078b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:09, skipping insertion in model container [2020-10-27 19:42:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:08" (2/3) ... [2020-10-27 19:42:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db078b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:09, skipping insertion in model container [2020-10-27 19:42:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:09" (3/3) ... [2020-10-27 19:42:09,885 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0660b.c [2020-10-27 19:42:09,902 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:09,909 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:09,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:09,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:09,958 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:09,958 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:09,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:09,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:09,959 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:09,959 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:09,959 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:09,982 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-27 19:42:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:42:09,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:09,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:42:09,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:09,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:09,999 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-27 19:42:10,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:10,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179816451] [2020-10-27 19:42:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:10,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:10,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:10,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:42:10,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:10,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-10-27 19:42:10,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:10,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 19:42:10,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:42:10,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:10,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:10,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:10,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:10,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:10,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 19:42:10,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:10,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:10,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:10,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:10,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 19:42:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:10,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:10,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:10,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:10,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:10,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:10,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 19:42:10,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:10,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:42:10,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179816451] [2020-10-27 19:42:10,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:10,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:10,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966120667] [2020-10-27 19:42:10,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:10,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:10,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:10,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:10,924 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-27 19:42:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:11,387 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-27 19:42:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:11,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:42:11,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:11,400 INFO L225 Difference]: With dead ends: 205 [2020-10-27 19:42:11,401 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 19:42:11,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:42:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 19:42:11,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-27 19:42:11,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-27 19:42:11,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-27 19:42:11,463 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-27 19:42:11,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:11,464 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-27 19:42:11,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-27 19:42:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 19:42:11,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:11,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:42:11,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:11,466 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:11,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-27 19:42:11,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:11,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580306045] [2020-10-27 19:42:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:11,518 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:11,519 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:11,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:11,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:11 BoogieIcfgContainer [2020-10-27 19:42:11,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:11,544 INFO L168 Benchmark]: Toolchain (without parser) took 3126.41 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 49.8 MB in the end (delta: 76.4 MB). Peak memory consumption was 77.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:11,545 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:11,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.00 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:11,547 INFO L168 Benchmark]: Boogie Preprocessor took 110.76 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:11,548 INFO L168 Benchmark]: RCFGBuilder took 920.26 ms. Allocated memory is still 151.0 MB. Free memory was 108.2 MB in the beginning and 97.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:11,549 INFO L168 Benchmark]: TraceAbstraction took 1665.81 ms. Allocated memory is still 151.0 MB. Free memory was 97.1 MB in the beginning and 49.8 MB in the end (delta: 47.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:11,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 413.00 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 111.1 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 110.76 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 920.26 ms. Allocated memory is still 151.0 MB. Free memory was 108.2 MB in the beginning and 97.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1665.81 ms. Allocated memory is still 151.0 MB. Free memory was 97.1 MB in the beginning and 49.8 MB in the end (delta: 47.3 MB). Peak memory consumption was 48.4 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: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...