/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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:25,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:25,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:25,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:25,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:25,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:25,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:25,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:25,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:25,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:25,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:25,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:25,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:25,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:25,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:25,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:25,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:25,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:25,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:25,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:25,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:25,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:25,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:25,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:25,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:25,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:25,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:25,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:25,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:25,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:25,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:25,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:25,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:25,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:25,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:25,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:25,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:25,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:25,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:25,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:25,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:25,360 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 19:43:25,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:25,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:25,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:25,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:25,419 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:25,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:25,420 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:25,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:25,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:25,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:25,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:25,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:25,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:25,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:25,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:25,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:25,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:25,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:25,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:25,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:25,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:25,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:25,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:25,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:25,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:25,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:25,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:25,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:25,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:25,907 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:25,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-27 19:43:25,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0933c0d2f/faaccf77dc58494ca3d22e184afb721d/FLAGe7d4630a1 [2020-10-27 19:43:26,655 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:26,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-10-27 19:43:26,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0933c0d2f/faaccf77dc58494ca3d22e184afb721d/FLAGe7d4630a1 [2020-10-27 19:43:26,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0933c0d2f/faaccf77dc58494ca3d22e184afb721d [2020-10-27 19:43:26,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:26,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:26,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:26,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:26,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:26,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:26" (1/1) ... [2020-10-27 19:43:26,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56597449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:26, skipping insertion in model container [2020-10-27 19:43:26,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:26" (1/1) ... [2020-10-27 19:43:26,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:27,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:27,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:27,233 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:27,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:27,349 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27 WrapperNode [2020-10-27 19:43:27,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:27,353 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:27,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:27,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:27,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:27,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:27,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:27,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:27,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (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 19:43:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:27,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 19:43:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 19:43:27,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:27,558 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:27,559 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 19:43:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:28,274 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:28,274 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:43:28,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:28 BoogieIcfgContainer [2020-10-27 19:43:28,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:28,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:28,278 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:28,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:28,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:26" (1/3) ... [2020-10-27 19:43:28,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2facd688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:28, skipping insertion in model container [2020-10-27 19:43:28,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27" (2/3) ... [2020-10-27 19:43:28,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2facd688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:28, skipping insertion in model container [2020-10-27 19:43:28,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:28" (3/3) ... [2020-10-27 19:43:28,285 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-10-27 19:43:28,298 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:28,306 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:28,320 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:28,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:28,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:28,347 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:28,347 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:28,347 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:28,347 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:28,347 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:28,347 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:28,366 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-27 19:43:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 19:43:28,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:28,374 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, 1, 1, 1, 1] [2020-10-27 19:43:28,375 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:28,382 INFO L82 PathProgramCache]: Analyzing trace with hash 154150217, now seen corresponding path program 1 times [2020-10-27 19:43:28,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:28,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513808481] [2020-10-27 19:43:28,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:28,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:28,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:28,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:28,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 19:43:28,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:43:28,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-27 19:43:28,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 19:43:28,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:28,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:29,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:29,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:29,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:29,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 19:43:29,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:29,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:29,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:29,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:29,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:29,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 19:43:29,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:29,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:29,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:29,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 19:43:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:29,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:29,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:29,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 19:43:29,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:29,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:43:29,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:29,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:29,165 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 19:43:29,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513808481] [2020-10-27 19:43:29,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:29,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:29,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732031808] [2020-10-27 19:43:29,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:29,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:29,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:29,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:29,199 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-27 19:43:29,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:29,719 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-27 19:43:29,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:29,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 19:43:29,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:29,732 INFO L225 Difference]: With dead ends: 143 [2020-10-27 19:43:29,732 INFO L226 Difference]: Without dead ends: 69 [2020-10-27 19:43:29,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-27 19:43:29,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-27 19:43:29,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 19:43:29,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-27 19:43:29,811 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-27 19:43:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:29,812 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-27 19:43:29,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:29,812 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-27 19:43:29,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:43:29,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:29,814 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 19:43:29,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:29,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:29,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1169914594, now seen corresponding path program 1 times [2020-10-27 19:43:29,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:29,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1136135968] [2020-10-27 19:43:29,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:29,874 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:29,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:29,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:29,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:29 BoogieIcfgContainer [2020-10-27 19:43:29,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:29,901 INFO L168 Benchmark]: Toolchain (without parser) took 2952.09 ms. Allocated memory was 166.7 MB in the beginning and 210.8 MB in the end (delta: 44.0 MB). Free memory was 141.1 MB in the beginning and 181.4 MB in the end (delta: -40.3 MB). Peak memory consumption was 4.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:29,902 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 140.7 MB in the end (delta: 213.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:29,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.70 ms. Allocated memory is still 166.7 MB. Free memory was 140.5 MB in the beginning and 127.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:29,904 INFO L168 Benchmark]: Boogie Preprocessor took 106.29 ms. Allocated memory is still 166.7 MB. Free memory was 127.2 MB in the beginning and 124.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:29,905 INFO L168 Benchmark]: RCFGBuilder took 816.58 ms. Allocated memory is still 166.7 MB. Free memory was 124.8 MB in the beginning and 143.1 MB in the end (delta: -18.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:29,906 INFO L168 Benchmark]: TraceAbstraction took 1620.33 ms. Allocated memory was 166.7 MB in the beginning and 210.8 MB in the end (delta: 44.0 MB). Free memory was 143.1 MB in the beginning and 181.4 MB in the end (delta: -38.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:29,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 166.7 MB. Free memory was 140.9 MB in the beginning and 140.7 MB in the end (delta: 213.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 394.70 ms. Allocated memory is still 166.7 MB. Free memory was 140.5 MB in the beginning and 127.2 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 106.29 ms. Allocated memory is still 166.7 MB. Free memory was 127.2 MB in the beginning and 124.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 816.58 ms. Allocated memory is still 166.7 MB. Free memory was 124.8 MB in the beginning and 143.1 MB in the end (delta: -18.3 MB). Peak memory consumption was 34.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1620.33 ms. Allocated memory was 166.7 MB in the beginning and 210.8 MB in the end (delta: 44.0 MB). Free memory was 143.1 MB in the beginning and 181.4 MB in the end (delta: -38.3 MB). Peak memory consumption was 5.7 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 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L182] double y = 1.0 / 0.0; [L183] double x = __VERIFIER_nondet_double(); [L185] CALL isfinite_double(x) [L166] __int32_t hx; [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L185] RET isfinite_double(x) [L185] COND TRUE isfinite_double(x) [L187] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L187] RET, EXPR fmod_double(x, y) [L187] double res = fmod_double(x, y); [L190] COND TRUE res != x [L191] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 80 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: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...