/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=SHALLOWEST --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_0680a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:01:32,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:01:32,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:01:32,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:01:32,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:01:32,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:01:32,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:01:32,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:01:32,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:01:33,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:01:33,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:01:33,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:01:33,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:01:33,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:01:33,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:01:33,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:01:33,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:01:33,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:01:33,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:01:33,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:01:33,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:01:33,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:01:33,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:01:33,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:01:33,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:01:33,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:01:33,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:01:33,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:01:33,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:01:33,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:01:33,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:01:33,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:01:33,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:01:33,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:01:33,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:01:33,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:01:33,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:01:33,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:01:33,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:01:33,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:01:33,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:01:33,100 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 01:01:33,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:01:33,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:01:33,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:01:33,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:01:33,166 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:01:33,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:01:33,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:01:33,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:01:33,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:01:33,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:01:33,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:01:33,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:01:33,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:01:33,170 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:01:33,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:01:33,170 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:01:33,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:01:33,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:01:33,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:01:33,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:01:33,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:01:33,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:01:33,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:01:33,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:01:33,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:01:33,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:01:33,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:01:33,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:01:33,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:01:33,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:01:33,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:01:33,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:01:33,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:01:33,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:01:33,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:01:33,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2020-10-27 01:01:33,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818c7cc49/f909cf2c0316459eacf4e88f9dcade0e/FLAG1bdaef514 [2020-10-27 01:01:34,472 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:01:34,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_0680a.c [2020-10-27 01:01:34,482 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818c7cc49/f909cf2c0316459eacf4e88f9dcade0e/FLAG1bdaef514 [2020-10-27 01:01:34,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/818c7cc49/f909cf2c0316459eacf4e88f9dcade0e [2020-10-27 01:01:34,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:01:34,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:01:34,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:34,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:01:34,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:01:34,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:34" (1/1) ... [2020-10-27 01:01:34,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dab0d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:34, skipping insertion in model container [2020-10-27 01:01:34,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:01:34" (1/1) ... [2020-10-27 01:01:34,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:01:34,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:01:35,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:35,157 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:01:35,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:01:35,290 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:01:35,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35 WrapperNode [2020-10-27 01:01:35,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:01:35,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:01:35,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:01:35,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:01:35,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (1/1) ... [2020-10-27 01:01:35,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:01:35,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:01:35,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:01:35,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:01:35,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (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 01:01:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2020-10-27 01:01:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2020-10-27 01:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2020-10-27 01:01:35,493 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:01:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:01:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:01:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:01:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2020-10-27 01:01:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2020-10-27 01:01:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:01:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:01:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:01:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:01:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:01:36,341 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:01:36,342 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 01:01:36,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:36 BoogieIcfgContainer [2020-10-27 01:01:36,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:01:36,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:01:36,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:01:36,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:01:36,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:01:34" (1/3) ... [2020-10-27 01:01:36,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783fc9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:36, skipping insertion in model container [2020-10-27 01:01:36,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:01:35" (2/3) ... [2020-10-27 01:01:36,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@783fc9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:01:36, skipping insertion in model container [2020-10-27 01:01:36,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:01:36" (3/3) ... [2020-10-27 01:01:36,353 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0680a.c [2020-10-27 01:01:36,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:01:36,371 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:01:36,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:01:36,413 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:01:36,413 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:01:36,414 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:01:36,414 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:01:36,414 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:01:36,414 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:01:36,414 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:01:36,414 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:01:36,435 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-10-27 01:01:36,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:01:36,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:36,442 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 01:01:36,443 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:36,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:36,450 INFO L82 PathProgramCache]: Analyzing trace with hash -7339331, now seen corresponding path program 1 times [2020-10-27 01:01:36,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:36,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251760590] [2020-10-27 01:01:36,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:36,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:37,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:37,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:01:37,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:37,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-27 01:01:37,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:01:37,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:37,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 01:01:37,212 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-27 01:01:37,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:01:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:37,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:37,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:37,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:01:37,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:01:37,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 01:01:37,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:01:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:37,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:01:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:01:37,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:37,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:01:37,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:01:37,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 01:01:37,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 01:01:37,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 01:01:37,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:01:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:01:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:01:37,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:01:37,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:01:37,359 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 01:01:37,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251760590] [2020-10-27 01:01:37,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:01:37,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:01:37,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582223566] [2020-10-27 01:01:37,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:01:37,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:01:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:01:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:01:37,388 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 4 states. [2020-10-27 01:01:37,556 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2020-10-27 01:01:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:01:38,139 INFO L93 Difference]: Finished difference Result 199 states and 316 transitions. [2020-10-27 01:01:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:01:38,142 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 01:01:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:01:38,153 INFO L225 Difference]: With dead ends: 199 [2020-10-27 01:01:38,154 INFO L226 Difference]: Without dead ends: 98 [2020-10-27 01:01:38,159 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 [2020-10-27 01:01:38,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-27 01:01:38,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-27 01:01:38,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-27 01:01:38,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 137 transitions. [2020-10-27 01:01:38,217 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 137 transitions. Word has length 19 [2020-10-27 01:01:38,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:01:38,218 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 137 transitions. [2020-10-27 01:01:38,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:01:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 137 transitions. [2020-10-27 01:01:38,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 01:01:38,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:01:38,220 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 01:01:38,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:01:38,220 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:01:38,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:01:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1887591124, now seen corresponding path program 1 times [2020-10-27 01:01:38,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:01:38,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59691734] [2020-10-27 01:01:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:01:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:01:38,279 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:01:38,279 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:01:38,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:01:38,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:01:38 BoogieIcfgContainer [2020-10-27 01:01:38,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:01:38,305 INFO L168 Benchmark]: Toolchain (without parser) took 3464.90 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 59.4 MB in the end (delta: 71.9 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:38,306 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 129.3 MB in the beginning and 129.2 MB in the end (delta: 79.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:01:38,307 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.87 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 116.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:38,308 INFO L168 Benchmark]: Boogie Preprocessor took 105.10 ms. Allocated memory is still 156.2 MB. Free memory was 116.1 MB in the beginning and 113.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:38,309 INFO L168 Benchmark]: RCFGBuilder took 945.72 ms. Allocated memory is still 156.2 MB. Free memory was 113.2 MB in the beginning and 103.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:38,310 INFO L168 Benchmark]: TraceAbstraction took 1957.44 ms. Allocated memory is still 156.2 MB. Free memory was 103.1 MB in the beginning and 59.4 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 MB. Max. memory is 8.0 GB. [2020-10-27 01:01:38,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 129.3 MB in the beginning and 129.2 MB in the end (delta: 79.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 445.87 ms. Allocated memory is still 156.2 MB. Free memory was 130.6 MB in the beginning and 116.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 105.10 ms. Allocated memory is still 156.2 MB. Free memory was 116.1 MB in the beginning and 113.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 945.72 ms. Allocated memory is still 156.2 MB. Free memory was 113.2 MB in the beginning and 103.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1957.44 ms. Allocated memory is still 156.2 MB. Free memory was 103.1 MB in the beginning and 59.4 MB in the end (delta: 43.8 MB). Peak memory consumption was 43.8 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 258. 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; [L256] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L256] RET, EXPR __ieee754_atan2(y, x) [L256] double res = __ieee754_atan2(y, x); [L258] COND TRUE res != -pi [L259] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_0680a.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: 1.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 10 SDslu, 125 SDs, 0 SdLazy, 135 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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...