/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_0680b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:42:21,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:42:21,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:42:21,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:42:21,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:42:21,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:42:21,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:42:21,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:42:21,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:42:21,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:42:21,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:42:21,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:42:21,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:42:21,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:42:21,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:42:21,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:42:21,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:42:21,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:42:21,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:42:21,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:42:21,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:42:21,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:42:21,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:42:22,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:42:22,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:42:22,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:42:22,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:42:22,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:42:22,011 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:42:22,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:42:22,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:42:22,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:42:22,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:42:22,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:42:22,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:42:22,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:42:22,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:42:22,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:42:22,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:42:22,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:42:22,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:42:22,030 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 19:42:22,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:42:22,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:42:22,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:42:22,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:42:22,083 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:42:22,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:42:22,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:42:22,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:42:22,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:42:22,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:42:22,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:42:22,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:42:22,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:42:22,086 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:42:22,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:42:22,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:42:22,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:42:22,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:42:22,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:42:22,087 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:42:22,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:42:22,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:42:22,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:42:22,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:42:22,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:42:22,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:42:22,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:42:22,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:42:22,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:42:22,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:42:22,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:42:22,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:42:22,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:42:22,580 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:42:22,581 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:42:22,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-27 19:42:22,677 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2d8508f0/86180647e04943e0aad51da92857c09e/FLAGe14cb67a3 [2020-10-27 19:42:23,404 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:42:23,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0680b.c [2020-10-27 19:42:23,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2d8508f0/86180647e04943e0aad51da92857c09e/FLAGe14cb67a3 [2020-10-27 19:42:23,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e2d8508f0/86180647e04943e0aad51da92857c09e [2020-10-27 19:42:23,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:42:23,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:42:23,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:23,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:42:23,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:42:23,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f1e49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:23, skipping insertion in model container [2020-10-27 19:42:23,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:42:23" (1/1) ... [2020-10-27 19:42:23,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:42:23,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:42:24,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:24,128 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:42:24,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:42:24,293 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:42:24,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24 WrapperNode [2020-10-27 19:42:24,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:42:24,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:42:24,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:42:24,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:42:24,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (1/1) ... [2020-10-27 19:42:24,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:42:24,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:42:24,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:42:24,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:42:24,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (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 19:42:24,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:42:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:42:24,553 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:42:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 19:42:24,554 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 19:42:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 19:42:24,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:42:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:42:24,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:42:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:42:24,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 19:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:42:24,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:42:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:42:24,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:42:24,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:42:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:42:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:42:25,382 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:42:25,383 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:42:25,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:25 BoogieIcfgContainer [2020-10-27 19:42:25,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:42:25,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:42:25,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:42:25,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:42:25,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:42:23" (1/3) ... [2020-10-27 19:42:25,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4baee794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:25, skipping insertion in model container [2020-10-27 19:42:25,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:42:24" (2/3) ... [2020-10-27 19:42:25,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4baee794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:42:25, skipping insertion in model container [2020-10-27 19:42:25,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:42:25" (3/3) ... [2020-10-27 19:42:25,394 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680b.c [2020-10-27 19:42:25,406 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:42:25,412 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:42:25,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:42:25,467 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:42:25,467 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:42:25,468 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:42:25,468 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:42:25,468 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:42:25,468 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:42:25,468 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:42:25,468 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:42:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 19:42:25,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 19:42:25,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:25,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:42:25,508 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:25,518 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 19:42:25,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:25,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [337841683] [2020-10-27 19:42:25,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:25,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:25,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:26,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:26,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 19:42:26,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 381 [2020-10-27 19:42:26,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:26,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 19:42:26,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:26,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 19:42:26,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:42:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:26,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:26,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:26,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:42:26,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:42:26,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 19:42:26,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:42:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:26,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:42:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:42:26,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:26,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:42:26,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:42:26,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:42:26,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:42:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:42:26,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:42:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:42:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:42:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:42:26,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:42:26,436 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 19:42:26,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [337841683] [2020-10-27 19:42:26,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:42:26,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:42:26,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901986742] [2020-10-27 19:42:26,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:42:26,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:42:26,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:42:26,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:42:26,464 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 19:42:26,594 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 19:42:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:42:26,997 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 19:42:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:42:26,998 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 19:42:26,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:42:27,010 INFO L225 Difference]: With dead ends: 199 [2020-10-27 19:42:27,010 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 19:42:27,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:42:27,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 19:42:27,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 19:42:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 19:42:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 19:42:27,071 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 19:42:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:42:27,071 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 19:42:27,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:42:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 19:42:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:42:27,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:42:27,073 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] [2020-10-27 19:42:27,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:42:27,073 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:42:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:42:27,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 19:42:27,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:42:27,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237450329] [2020-10-27 19:42:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:42:27,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:42:27,130 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:42:27,131 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:42:27,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:42:27,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:42:27 BoogieIcfgContainer [2020-10-27 19:42:27,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:42:27,156 INFO L168 Benchmark]: Toolchain (without parser) took 3394.82 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 54.6 MB in the end (delta: 71.9 MB). Peak memory consumption was 73.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:27,157 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:42:27,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 110.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:27,159 INFO L168 Benchmark]: Boogie Preprocessor took 164.78 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 108.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:27,160 INFO L168 Benchmark]: RCFGBuilder took 922.56 ms. Allocated memory is still 151.0 MB. Free memory was 108.0 MB in the beginning and 101.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:27,161 INFO L168 Benchmark]: TraceAbstraction took 1768.15 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 54.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:42:27,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 151.0 MB. Free memory is still 123.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 524.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 110.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.78 ms. Allocated memory is still 151.0 MB. Free memory was 110.9 MB in the beginning and 108.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 922.56 ms. Allocated memory is still 151.0 MB. Free memory was 108.0 MB in the beginning and 101.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1768.15 ms. Allocated memory is still 151.0 MB. Free memory was 100.9 MB in the beginning and 54.6 MB in the end (delta: 46.2 MB). Peak memory consumption was 46.7 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 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. 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 = 0.0; [L255] 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; [L255] RET, EXPR __ieee754_atan2(y, x) [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi [L258] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0680b.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: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, 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, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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...