/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:07:27,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:07:27,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:07:27,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:07:27,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:07:27,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:07:27,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:07:27,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:07:27,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:07:27,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:07:27,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:07:27,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:07:27,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:07:27,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:07:27,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:07:27,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:07:27,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:07:27,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:07:27,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:07:27,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:07:27,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:07:27,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:07:27,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:07:27,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:07:27,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:07:27,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:07:27,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:07:27,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:07:27,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:07:27,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:07:27,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:07:27,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:07:27,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:07:27,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:07:27,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:07:27,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:07:27,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:07:27,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:07:27,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:07:27,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:07:27,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:07:27,405 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 [2020-09-25 03:07:27,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:07:27,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:07:27,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:07:27,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:07:27,432 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:07:27,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:07:27,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:07:27,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:07:27,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:07:27,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:07:27,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:07:27,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:07:27,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:07:27,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:07:27,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:07:27,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:07:27,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:07:27,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:07:27,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:07:27,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:07:27,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:07:27,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:07:27,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:07:27,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:07:27,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:07:27,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:07:27,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:07:27,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:07:27,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:07:27,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=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=WIDEST;log-additional-information=true; [2020-09-25 03:07:27,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:07:27,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:07:27,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:07:27,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:07:27,970 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:07:27,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 03:07:28,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad/FLAGda84216f8 [2020-09-25 03:07:28,658 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:07:28,659 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 03:07:28,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad/FLAGda84216f8 [2020-09-25 03:07:28,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/64f2c3095/f18d4a1737764583a8dd85343fd25fad [2020-09-25 03:07:28,990 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:07:28,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:07:28,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:07:28,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:07:29,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:07:29,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:28" (1/1) ... [2020-09-25 03:07:29,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514343ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29, skipping insertion in model container [2020-09-25 03:07:29,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:07:28" (1/1) ... [2020-09-25 03:07:29,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:07:29,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:07:29,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:07:29,294 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:07:29,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:07:29,455 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:07:29,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29 WrapperNode [2020-09-25 03:07:29,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:07:29,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:07:29,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:07:29,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:07:29,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... [2020-09-25 03:07:29,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:07:29,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:07:29,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:07:29,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:07:29,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:07:29,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:07:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:07:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-09-25 03:07:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 03:07:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:07:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:07:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-09-25 03:07:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:07:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 03:07:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:07:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:07:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:07:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 03:07:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 03:07:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:07:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:07:29,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:07:30,090 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:07:30,091 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 03:07:30,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:30 BoogieIcfgContainer [2020-09-25 03:07:30,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:07:30,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:07:30,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:07:30,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:07:30,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:07:28" (1/3) ... [2020-09-25 03:07:30,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:30, skipping insertion in model container [2020-09-25 03:07:30,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:07:29" (2/3) ... [2020-09-25 03:07:30,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:07:30, skipping insertion in model container [2020-09-25 03:07:30,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:07:30" (3/3) ... [2020-09-25 03:07:30,107 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-09-25 03:07:30,117 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:07:30,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:07:30,151 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:07:30,181 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:07:30,181 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:07:30,181 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:07:30,181 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:07:30,181 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:07:30,181 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:07:30,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:07:30,182 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:07:30,204 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-09-25 03:07:30,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 03:07:30,214 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:07:30,215 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, 1, 1, 1, 1, 1, 1] [2020-09-25 03:07:30,215 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:07:30,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:07:30,223 INFO L82 PathProgramCache]: Analyzing trace with hash -911557548, now seen corresponding path program 1 times [2020-09-25 03:07:30,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:07:30,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025014773] [2020-09-25 03:07:30,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:07:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:07:30,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:07:30,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:07:30,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 03:07:30,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:07:30,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 03:07:30,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:07:30,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:07:30,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 03:07:30,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:07:30,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 03:07:30,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:07:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:07:30,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:07:30,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:07:30,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:07:30,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:07:30,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:07:30,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:07:30,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:07:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:07:30,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:07:30,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:07:30,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 03:07:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:07:30,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:07:30,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:07:30,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 03:07:30,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:07:30,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 03:07:30,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:07:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:07:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 03:07:30,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:07:30,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:07:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:07:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:07:30,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:07:30,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:07:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 03:07:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:07:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:07:30,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:07:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:07:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 03:07:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:07:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:07:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 03:07:30,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025014773] [2020-09-25 03:07:30,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:07:30,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 03:07:30,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696531882] [2020-09-25 03:07:30,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 03:07:30,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:07:30,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 03:07:30,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 03:07:30,751 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 4 states. [2020-09-25 03:07:31,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:07:31,044 INFO L93 Difference]: Finished difference Result 181 states and 219 transitions. [2020-09-25 03:07:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 03:07:31,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-25 03:07:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:07:31,064 INFO L225 Difference]: With dead ends: 181 [2020-09-25 03:07:31,065 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 03:07:31,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 03:07:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 03:07:31,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-25 03:07:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 03:07:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-09-25 03:07:31,135 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 35 [2020-09-25 03:07:31,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:07:31,150 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-09-25 03:07:31,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 03:07:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-09-25 03:07:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 03:07:31,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:07:31,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:07:31,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:07:31,154 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:07:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:07:31,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2058435850, now seen corresponding path program 1 times [2020-09-25 03:07:31,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:07:31,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20187446] [2020-09-25 03:07:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:07:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 03:07:31,211 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 03:07:31,211 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 03:07:31,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:07:31,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:07:31 BoogieIcfgContainer [2020-09-25 03:07:31,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 03:07:31,249 INFO L168 Benchmark]: Toolchain (without parser) took 2254.87 ms. Allocated memory was 141.6 MB in the beginning and 233.3 MB in the end (delta: 91.8 MB). Free memory was 102.1 MB in the beginning and 196.9 MB in the end (delta: -94.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:07:31,252 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-09-25 03:07:31,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.81 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:31,263 INFO L168 Benchmark]: Boogie Preprocessor took 61.33 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:31,264 INFO L168 Benchmark]: RCFGBuilder took 578.96 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 151.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-09-25 03:07:31,265 INFO L168 Benchmark]: TraceAbstraction took 1145.32 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 151.2 MB in the beginning and 196.9 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 03:07:31,276 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 459.81 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.33 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 178.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 578.96 ms. Allocated memory is still 201.9 MB. Free memory was 178.1 MB in the beginning and 151.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1145.32 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 151.2 MB in the beginning and 196.9 MB in the end (delta: -45.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 80, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; [L88] double x = 0.0 / 0.0; [L89] CALL, EXPR floor_double(x) [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L26] COND FALSE !(j0 < 20) [L47] COND TRUE j0 > 51 [L48] COND TRUE j0 == 0x400 [L49] return x + x; [L89] RET, EXPR floor_double(x) [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) [L80] return x != x; [L92] RET, EXPR isnan_double(res) [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 110 SDtfs, 21 SDslu, 82 SDs, 0 SdLazy, 115 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=99occurred 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, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 1972 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...