/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_0662a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:25:58,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:25:58,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:25:58,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:25:58,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:25:58,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:25:58,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:25:58,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:25:58,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:25:58,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:25:58,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:25:58,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:25:58,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:25:58,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:25:58,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:25:58,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:25:58,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:25:58,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:25:58,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:25:58,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:25:58,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:25:58,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:25:58,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:25:58,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:25:58,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:25:58,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:25:58,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:25:58,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:25:58,336 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:25:58,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:25:58,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:25:58,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:25:58,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:25:58,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:25:58,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:25:58,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:25:58,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:25:58,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:25:58,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:25:58,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:25:58,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:25:58,345 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 14:25:58,370 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:25:58,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:25:58,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:25:58,372 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:25:58,373 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:25:58,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:25:58,373 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:25:58,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:25:58,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:25:58,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:25:58,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:25:58,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:25:58,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:25:58,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:25:58,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:25:58,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:25:58,375 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:25:58,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:25:58,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:25:58,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:25:58,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:25:58,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:25:58,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:25:58,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:25:58,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:25:58,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:25:58,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:25:58,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:25:58,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:25:58,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:25:58,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:25:58,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:25:58,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:25:58,812 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:25:58,813 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:25:58,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662a.c [2020-10-28 14:25:58,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b545e6718/2689e8d826c34d6da30e2cbfd8c69b49/FLAG6d131e7ed [2020-10-28 14:25:59,618 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:25:59,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0662a.c [2020-10-28 14:25:59,641 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b545e6718/2689e8d826c34d6da30e2cbfd8c69b49/FLAG6d131e7ed [2020-10-28 14:25:59,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b545e6718/2689e8d826c34d6da30e2cbfd8c69b49 [2020-10-28 14:25:59,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:25:59,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:25:59,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:25:59,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:25:59,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:25:59,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:25:59" (1/1) ... [2020-10-28 14:25:59,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70591157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:25:59, skipping insertion in model container [2020-10-28 14:25:59,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:25:59" (1/1) ... [2020-10-28 14:25:59,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:25:59,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:26:00,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:00,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:26:00,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:26:00,336 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:26:00,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00 WrapperNode [2020-10-28 14:26:00,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:26:00,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:26:00,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:26:00,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:26:00,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (1/1) ... [2020-10-28 14:26:00,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:26:00,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:26:00,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:26:00,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:26:00,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (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 14:26:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:26:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:26:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:26:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-28 14:26:00,530 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-28 14:26:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-28 14:26:00,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:26:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:26:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:26:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:26:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:26:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:26:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:26:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:26:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:26:01,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:26:01,551 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:26:01,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:01 BoogieIcfgContainer [2020-10-28 14:26:01,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:26:01,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:26:01,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:26:01,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:26:01,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:25:59" (1/3) ... [2020-10-28 14:26:01,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a17745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:01, skipping insertion in model container [2020-10-28 14:26:01,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:26:00" (2/3) ... [2020-10-28 14:26:01,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a17745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:26:01, skipping insertion in model container [2020-10-28 14:26:01,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:26:01" (3/3) ... [2020-10-28 14:26:01,566 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2020-10-28 14:26:01,580 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:26:01,585 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:26:01,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:26:01,642 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:26:01,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:26:01,642 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:26:01,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:26:01,642 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:26:01,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:26:01,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:26:01,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:26:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-10-28 14:26:01,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:26:01,681 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:01,683 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] [2020-10-28 14:26:01,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:01,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:01,692 INFO L82 PathProgramCache]: Analyzing trace with hash 199039736, now seen corresponding path program 1 times [2020-10-28 14:26:01,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:01,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642972289] [2020-10-28 14:26:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:01,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:02,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:02,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:02,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 14:26:02,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 362 [2020-10-28 14:26:02,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:02,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:02,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-28 14:26:02,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 14:26:02,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:26:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:02,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:02,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:02,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:26:02,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:26:02,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 14:26:02,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:02,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:26:02,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:02,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:02,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:26:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:26:02,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:02,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:26:02,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:26:02,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 14:26:02,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:26:02,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 14:26:02,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:26:02,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:26:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:26:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 14:26:02,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:26:02,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:26:02,513 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 14:26:02,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642972289] [2020-10-28 14:26:02,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:26:02,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:26:02,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565296924] [2020-10-28 14:26:02,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:26:02,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:26:02,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:26:02,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:26:02,541 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 4 states. [2020-10-28 14:26:03,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:26:03,018 INFO L93 Difference]: Finished difference Result 205 states and 323 transitions. [2020-10-28 14:26:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:26:03,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-28 14:26:03,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:26:03,031 INFO L225 Difference]: With dead ends: 205 [2020-10-28 14:26:03,032 INFO L226 Difference]: Without dead ends: 99 [2020-10-28 14:26:03,036 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 [2020-10-28 14:26:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-28 14:26:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2020-10-28 14:26:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-28 14:26:03,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2020-10-28 14:26:03,100 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 20 [2020-10-28 14:26:03,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:26:03,100 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2020-10-28 14:26:03,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:26:03,101 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2020-10-28 14:26:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 14:26:03,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:26:03,102 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] [2020-10-28 14:26:03,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:26:03,103 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:26:03,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:26:03,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1527493777, now seen corresponding path program 1 times [2020-10-28 14:26:03,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:26:03,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318708289] [2020-10-28 14:26:03,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:26:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:26:03,160 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:26:03,160 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:26:03,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:26:03,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:26:03 BoogieIcfgContainer [2020-10-28 14:26:03,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:26:03,186 INFO L168 Benchmark]: Toolchain (without parser) took 3251.61 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 127.9 MB in the beginning and 89.8 MB in the end (delta: 38.0 MB). Peak memory consumption was 70.8 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:03,187 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 153.1 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:26:03,188 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.44 ms. Allocated memory is still 153.1 MB. Free memory was 127.2 MB in the beginning and 112.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:03,188 INFO L168 Benchmark]: Boogie Preprocessor took 106.98 ms. Allocated memory is still 153.1 MB. Free memory was 112.6 MB in the beginning and 109.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:03,189 INFO L168 Benchmark]: RCFGBuilder took 1104.67 ms. Allocated memory is still 153.1 MB. Free memory was 109.6 MB in the beginning and 104.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:03,190 INFO L168 Benchmark]: TraceAbstraction took 1625.96 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 104.0 MB in the beginning and 89.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 8.0 GB. [2020-10-28 14:26:03,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 153.1 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 397.44 ms. Allocated memory is still 153.1 MB. Free memory was 127.2 MB in the beginning and 112.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.98 ms. Allocated memory is still 153.1 MB. Free memory was 112.6 MB in the beginning and 109.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1104.67 ms. Allocated memory is still 153.1 MB. Free memory was 109.6 MB in the beginning and 104.5 MB in the end (delta: 5.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1625.96 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 104.0 MB in the beginning and 89.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 46.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 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_0662a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 18 SDslu, 124 SDs, 0 SdLazy, 138 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...