/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_0685b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:26:16,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:26:16,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:26:16,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:26:16,789 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:26:16,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:26:16,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:26:16,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:26:16,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:26:16,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:26:16,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:26:16,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:26:16,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:26:16,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:26:16,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:26:16,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:26:16,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:26:16,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:26:16,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:26:16,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:26:16,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:26:16,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:26:16,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:26:16,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:26:16,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:26:16,827 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:26:16,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:26:16,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:26:16,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:26:16,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:26:16,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:26:16,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:26:16,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:26:16,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:26:16,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:26:16,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:26:16,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:26:16,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:26:16,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:26:16,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:26:16,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:26:16,844 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 14:26:16,913 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:26:16,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:26:16,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:26:16,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:26:16,916 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:26:16,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:26:16,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:26:16,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:26:16,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:26:16,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:26:16,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:26:16,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:26:16,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:26:16,918 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:26:16,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:26:16,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:26:16,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:26:16,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:26:16,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:26:16,919 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:26:16,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:26:16,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:16,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:26:16,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:26:16,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:26:16,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:26:16,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:26:16,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:26:16,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:26:16,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:26:17,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:26:17,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:26:17,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:26:17,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:26:17,345 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:26:17,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0685b.c [2020-10-28 14:26:17,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5baa44a3c/a984f121d70e42e4a5893638beeb8101/FLAGe3fa1aa96 [2020-10-28 14:26:18,039 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:26:18,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0685b.c [2020-10-28 14:26:18,053 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5baa44a3c/a984f121d70e42e4a5893638beeb8101/FLAGe3fa1aa96 [2020-10-28 14:26:18,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5baa44a3c/a984f121d70e42e4a5893638beeb8101 [2020-10-28 14:26:18,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:26:18,394 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:26:18,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:18,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:26:18,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:26:18,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:18,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fe97eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18, skipping insertion in model container [2020-10-28 14:26:18,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:18,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:26:18,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:18,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:18,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:18,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:18,874 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:18,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18 WrapperNode [2020-10-28 14:26:18,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:18,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:18,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:18,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:18,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:18,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:18,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:18,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:19,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:19,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:19,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... [2020-10-28 14:26:19,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:19,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:19,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:19,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:19,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:26:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:19,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:19,125 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:19,126 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:19,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:19,127 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:19,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:19,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:19,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:19,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:19,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:20,088 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:20,088 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:20,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:20 BoogieIcfgContainer [2020-10-28 14:26:20,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:20,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:20,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:20,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:20,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:26:18" (1/3) ... [2020-10-28 14:26:20,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230bd7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:20, skipping insertion in model container [2020-10-28 14:26:20,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:18" (2/3) ... [2020-10-28 14:26:20,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@230bd7a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:20, skipping insertion in model container [2020-10-28 14:26:20,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:20" (3/3) ... [2020-10-28 14:26:20,105 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0685b.c [2020-10-28 14:26:20,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:20,124 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:20,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:20,176 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:20,176 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:20,176 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:20,177 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:20,177 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:20,177 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:20,177 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:20,177 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:20,196 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-28 14:26:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-28 14:26:20,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:20,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:20,204 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:20,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:20,211 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-28 14:26:20,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:20,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1126337325] [2020-10-28 14:26:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:20,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:20,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:20,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:20,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 14:26:20,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-28 14:26:20,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:20,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:20,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 14:26:20,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:20,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:26:21,012 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-28 14:26:21,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:21,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:21,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:21,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:21,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:21,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 14:26:21,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:21,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:21,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:21,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:21,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:21,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 14:26:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:21,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:21,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:21,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:21,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:21,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 14:26:21,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:21,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-28 14:26:21,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:21,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:26:21,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1126337325] [2020-10-28 14:26:21,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:21,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:21,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467330809] [2020-10-28 14:26:21,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:21,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:21,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:21,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:21,166 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-28 14:26:21,417 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-28 14:26:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:22,093 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-28 14:26:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:22,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-28 14:26:22,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:22,107 INFO L225 Difference]: With dead ends: 199 [2020-10-28 14:26:22,107 INFO L226 Difference]: Without dead ends: 98 [2020-10-28 14:26:22,112 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 14:26:22,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-28 14:26:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-28 14:26:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-28 14:26:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-28 14:26:22,172 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-28 14:26:22,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:22,173 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-28 14:26:22,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:22,173 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-28 14:26:22,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 14:26:22,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:22,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 14:26:22,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:22,175 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:22,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:22,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-28 14:26:22,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:22,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1950938919] [2020-10-28 14:26:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:22,248 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:22,248 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:22,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:22,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:22 BoogieIcfgContainer [2020-10-28 14:26:22,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:22,276 INFO L168 Benchmark]: Toolchain (without parser) took 3886.16 ms. Allocated memory was 156.2 MB in the beginning and 200.3 MB in the end (delta: 44.0 MB). Free memory was 132.1 MB in the beginning and 149.1 MB in the end (delta: -17.0 MB). Peak memory consumption was 28.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:22,276 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:22,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.17 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 117.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:22,278 INFO L168 Benchmark]: Boogie Preprocessor took 157.82 ms. Allocated memory is still 156.2 MB. Free memory was 117.0 MB in the beginning and 113.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:22,279 INFO L168 Benchmark]: RCFGBuilder took 1053.77 ms. Allocated memory is still 156.2 MB. Free memory was 113.9 MB in the beginning and 71.3 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:22,280 INFO L168 Benchmark]: TraceAbstraction took 2179.10 ms. Allocated memory was 156.2 MB in the beginning and 200.3 MB in the end (delta: 44.0 MB). Free memory was 70.9 MB in the beginning and 149.1 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:22,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 131.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 480.17 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 117.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 157.82 ms. Allocated memory is still 156.2 MB. Free memory was 117.0 MB in the beginning and 113.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1053.77 ms. Allocated memory is still 156.2 MB. Free memory was 113.9 MB in the beginning and 71.3 MB in the end (delta: 42.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2179.10 ms. Allocated memory was 156.2 MB in the beginning and 200.3 MB in the end (delta: 44.0 MB). Free memory was 70.9 MB in the beginning and 149.1 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 259. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L253] double x = -1.0 / 0.0; [L254] double y = -1.0 / 0.0; [L256] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L259] COND TRUE res != -3 * pi_o_4 [L260] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0685b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s 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=105occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...