/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_0663a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 09:06:26,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 09:06:26,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 09:06:26,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 09:06:26,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 09:06:26,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 09:06:26,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 09:06:26,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 09:06:26,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 09:06:26,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 09:06:26,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 09:06:26,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 09:06:26,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 09:06:26,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 09:06:26,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 09:06:26,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 09:06:26,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 09:06:26,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 09:06:26,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 09:06:26,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 09:06:26,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 09:06:26,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 09:06:26,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 09:06:26,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 09:06:26,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 09:06:26,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 09:06:26,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 09:06:26,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 09:06:26,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 09:06:26,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 09:06:26,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 09:06:26,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 09:06:26,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 09:06:26,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 09:06:26,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 09:06:26,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 09:06:26,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 09:06:26,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 09:06:26,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 09:06:26,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 09:06:26,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 09:06:27,007 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 09:06:27,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 09:06:27,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 09:06:27,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 09:06:27,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 09:06:27,071 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 09:06:27,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 09:06:27,071 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 09:06:27,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 09:06:27,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 09:06:27,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 09:06:27,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 09:06:27,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 09:06:27,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 09:06:27,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 09:06:27,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 09:06:27,074 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 09:06:27,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 09:06:27,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 09:06:27,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 09:06:27,075 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 09:06:27,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 09:06:27,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 09:06:27,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 09:06:27,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 09:06:27,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 09:06:27,076 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 09:06:27,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 09:06:27,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 09:06:27,077 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 09:06:27,077 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 09:06:27,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 09:06:27,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 09:06:27,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 09:06:27,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 09:06:27,559 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 09:06:27,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-29 09:06:27,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73751ec8/bd46d9e9a3554eb38d8647bc01a000c3/FLAG446fd6e63 [2020-10-29 09:06:28,413 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 09:06:28,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0663a.c [2020-10-29 09:06:28,430 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73751ec8/bd46d9e9a3554eb38d8647bc01a000c3/FLAG446fd6e63 [2020-10-29 09:06:28,744 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f73751ec8/bd46d9e9a3554eb38d8647bc01a000c3 [2020-10-29 09:06:28,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 09:06:28,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 09:06:28,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:28,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 09:06:28,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 09:06:28,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:28" (1/1) ... [2020-10-29 09:06:28,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cbff4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:28, skipping insertion in model container [2020-10-29 09:06:28,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 09:06:28" (1/1) ... [2020-10-29 09:06:28,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 09:06:28,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 09:06:29,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:29,112 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 09:06:29,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 09:06:29,282 INFO L208 MainTranslator]: Completed translation [2020-10-29 09:06:29,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29 WrapperNode [2020-10-29 09:06:29,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 09:06:29,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 09:06:29,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 09:06:29,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 09:06:29,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,355 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (1/1) ... [2020-10-29 09:06:29,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 09:06:29,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 09:06:29,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 09:06:29,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 09:06:29,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (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 09:06:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 09:06:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 09:06:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 09:06:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-29 09:06:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-29 09:06:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-29 09:06:29,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 09:06:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 09:06:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 09:06:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 09:06:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 09:06:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-29 09:06:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-29 09:06:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-29 09:06:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-29 09:06:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 09:06:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 09:06:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 09:06:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-29 09:06:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 09:06:30,322 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 09:06:30,323 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-29 09:06:30,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:30 BoogieIcfgContainer [2020-10-29 09:06:30,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 09:06:30,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 09:06:30,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 09:06:30,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 09:06:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 09:06:28" (1/3) ... [2020-10-29 09:06:30,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a11846c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:30, skipping insertion in model container [2020-10-29 09:06:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 09:06:29" (2/3) ... [2020-10-29 09:06:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a11846c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 09:06:30, skipping insertion in model container [2020-10-29 09:06:30,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 09:06:30" (3/3) ... [2020-10-29 09:06:30,335 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663a.c [2020-10-29 09:06:30,348 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 09:06:30,353 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 09:06:30,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 09:06:30,397 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 09:06:30,397 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 09:06:30,398 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 09:06:30,398 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 09:06:30,398 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 09:06:30,398 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 09:06:30,398 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 09:06:30,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 09:06:30,420 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-29 09:06:30,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 09:06:30,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:30,428 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 09:06:30,428 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:30,435 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-29 09:06:30,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:30,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10432993] [2020-10-29 09:06:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:30,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:31,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:31,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 09:06:31,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:31,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 387 [2020-10-29 09:06:31,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:31,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 09:06:31,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:31,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 09:06:31,299 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-29 09:06:31,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 09:06:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:31,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:31,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:31,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 09:06:31,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 09:06:31,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 09:06:31,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:31,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 09:06:31,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:31,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:31,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-29 09:06:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 09:06:31,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:31,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 09:06:31,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 09:06:31,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 09:06:31,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 09:06:31,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 09:06:31,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 09:06:31,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 09:06:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 09:06:31,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 09:06:31,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 09:06:31,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 09:06:31,460 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 09:06:31,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10432993] [2020-10-29 09:06:31,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 09:06:31,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 09:06:31,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714718126] [2020-10-29 09:06:31,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 09:06:31,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 09:06:31,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 09:06:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 09:06:31,490 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-29 09:06:31,634 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-29 09:06:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 09:06:32,087 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-29 09:06:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 09:06:32,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-29 09:06:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 09:06:32,100 INFO L225 Difference]: With dead ends: 205 [2020-10-29 09:06:32,101 INFO L226 Difference]: Without dead ends: 99 [2020-10-29 09:06:32,105 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 09:06:32,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-29 09:06:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-29 09:06:32,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-29 09:06:32,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-29 09:06:32,184 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-29 09:06:32,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 09:06:32,185 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-29 09:06:32,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 09:06:32,185 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-29 09:06:32,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 09:06:32,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 09:06:32,187 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 09:06:32,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 09:06:32,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 09:06:32,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 09:06:32,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-29 09:06:32,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 09:06:32,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678096168] [2020-10-29 09:06:32,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 09:06:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 09:06:32,248 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 09:06:32,248 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 09:06:32,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 09:06:32,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 09:06:32 BoogieIcfgContainer [2020-10-29 09:06:32,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 09:06:32,275 INFO L168 Benchmark]: Toolchain (without parser) took 3522.53 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 134.4 MB in the beginning and 156.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:32,276 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 112.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:32,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.46 ms. Allocated memory is still 151.0 MB. Free memory was 133.4 MB in the beginning and 132.7 MB in the end (delta: 704.4 kB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:32,277 INFO L168 Benchmark]: Boogie Preprocessor took 93.69 ms. Allocated memory is still 151.0 MB. Free memory was 132.7 MB in the beginning and 129.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:32,278 INFO L168 Benchmark]: RCFGBuilder took 943.18 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 86.5 MB in the end (delta: 42.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. [2020-10-29 09:06:32,279 INFO L168 Benchmark]: TraceAbstraction took 1945.47 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 86.5 MB in the beginning and 156.3 MB in the end (delta: -69.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 09:06:32,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 124.6 MB in the end (delta: 112.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 521.46 ms. Allocated memory is still 151.0 MB. Free memory was 133.4 MB in the beginning and 132.7 MB in the end (delta: 704.4 kB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 93.69 ms. Allocated memory is still 151.0 MB. Free memory was 132.7 MB in the beginning and 129.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 943.18 ms. Allocated memory is still 151.0 MB. Free memory was 129.4 MB in the beginning and 86.5 MB in the end (delta: 42.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1945.47 ms. Allocated memory was 151.0 MB in the beginning and 186.6 MB in the end (delta: 35.7 MB). Free memory was 86.5 MB in the beginning and 156.3 MB in the end (delta: -69.7 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 253, 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_0663a.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: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, 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, 0.3s 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...