/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-eb0fd7c [2020-09-21 12:20:30,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:20:30,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:20:30,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:20:30,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:20:30,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:20:30,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:20:30,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:20:30,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:20:30,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:20:30,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:20:30,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:20:30,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:20:30,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:20:30,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:20:30,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:20:30,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:20:30,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:20:30,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:20:30,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:20:30,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:20:30,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:20:30,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:20:30,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:20:30,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:20:30,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:20:30,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:20:30,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:20:30,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:20:30,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:20:30,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:20:30,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:20:30,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:20:30,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:20:30,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:20:30,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:20:30,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:20:30,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:20:30,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:20:30,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:20:30,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:20:30,327 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 [2020-09-21 12:20:30,374 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:20:30,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:20:30,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:20:30,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:20:30,376 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:20:30,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:20:30,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:20:30,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:20:30,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:20:30,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:20:30,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:20:30,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:20:30,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:20:30,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:20:30,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:20:30,380 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:20:30,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:20:30,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:20:30,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:20:30,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:20:30,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:20:30,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:20:30,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:20:30,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:20:30,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:20:30,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:20:30,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:20:30,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:20:30,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:20:30,383 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:20:30,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:20:30,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:20:30,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:20:30,882 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:20:30,883 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:20:30,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-21 12:20:30,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a099e321/c98e2c0ed4e04cbdac9f353bfa765bed/FLAGda9437e23 [2020-09-21 12:20:31,538 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:20:31,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-21 12:20:31,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a099e321/c98e2c0ed4e04cbdac9f353bfa765bed/FLAGda9437e23 [2020-09-21 12:20:31,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a099e321/c98e2c0ed4e04cbdac9f353bfa765bed [2020-09-21 12:20:31,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:20:31,886 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:20:31,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:20:31,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:20:31,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:20:31,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:20:31" (1/1) ... [2020-09-21 12:20:31,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779392b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:31, skipping insertion in model container [2020-09-21 12:20:31,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:20:31" (1/1) ... [2020-09-21 12:20:31,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:20:31,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:20:32,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:20:32,208 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:20:32,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:20:32,269 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:20:32,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32 WrapperNode [2020-09-21 12:20:32,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:20:32,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:20:32,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:20:32,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:20:32,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (1/1) ... [2020-09-21 12:20:32,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:20:32,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:20:32,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:20:32,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:20:32,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (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 [2020-09-21 12:20:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:20:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:20:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-09-21 12:20:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-21 12:20:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:20:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:20:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-09-21 12:20:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 12:20:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-21 12:20:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 12:20:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 12:20:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 12:20:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-21 12:20:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-21 12:20:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:20:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:20:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:20:32,860 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:20:32,861 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-21 12:20:32,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:20:32 BoogieIcfgContainer [2020-09-21 12:20:32,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:20:32,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:20:32,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:20:32,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:20:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:20:31" (1/3) ... [2020-09-21 12:20:32,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123fd23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:20:32, skipping insertion in model container [2020-09-21 12:20:32,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:20:32" (2/3) ... [2020-09-21 12:20:32,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123fd23f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:20:32, skipping insertion in model container [2020-09-21 12:20:32,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:20:32" (3/3) ... [2020-09-21 12:20:32,877 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-09-21 12:20:32,891 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:20:32,901 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:20:32,925 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:20:32,970 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:20:32,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:20:32,971 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:20:32,971 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:20:32,971 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:20:32,971 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:20:32,971 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:20:32,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:20:32,993 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-09-21 12:20:33,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-21 12:20:33,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:20:33,002 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] [2020-09-21 12:20:33,003 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:20:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:20:33,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2020-09-21 12:20:33,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:20:33,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995214023] [2020-09-21 12:20:33,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:20:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:20:33,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:20:33,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:20:33,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 12:20:33,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:20:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-21 12:20:33,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:20:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:20:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:20:33,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:20:33,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-21 12:20:33,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:20:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:20:33,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:20:33,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:20:33,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:20:33,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:20:33,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:20:33,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:20:33,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:20:33,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:20:33,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:20:33,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:20:33,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 12:20:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:20:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:20:33,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:20:33,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-21 12:20:33,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:20:33,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:20:33,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:20:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:20:33,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:20:33,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:20:33,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:20:33,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 12:20:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:20:33,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:20:33,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:20:33,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 12:20:33,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:20:33,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:20:33,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:20:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:20:33,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 12:20:33,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:20:33,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:20:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:20:33,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995214023] [2020-09-21 12:20:33,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:20:33,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 12:20:33,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643993708] [2020-09-21 12:20:33,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 12:20:33,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:20:33,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 12:20:33,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 12:20:33,482 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-09-21 12:20:33,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:20:33,745 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2020-09-21 12:20:33,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-21 12:20:33,748 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-21 12:20:33,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:20:33,764 INFO L225 Difference]: With dead ends: 86 [2020-09-21 12:20:33,764 INFO L226 Difference]: Without dead ends: 43 [2020-09-21 12:20:33,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:20:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-21 12:20:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-21 12:20:33,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-21 12:20:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2020-09-21 12:20:33,827 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2020-09-21 12:20:33,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:20:33,828 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2020-09-21 12:20:33,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 12:20:33,829 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2020-09-21 12:20:33,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-21 12:20:33,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:20:33,830 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] [2020-09-21 12:20:33,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:20:33,831 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:20:33,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:20:33,832 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2020-09-21 12:20:33,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:20:33,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [363320562] [2020-09-21 12:20:33,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:20:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:20:33,881 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:20:33,881 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:20:33,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:20:33,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:20:33 BoogieIcfgContainer [2020-09-21 12:20:33,911 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:20:33,918 INFO L168 Benchmark]: Toolchain (without parser) took 2030.78 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 103.7 MB in the beginning and 99.4 MB in the end (delta: 4.3 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,919 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.78 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 91.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,921 INFO L168 Benchmark]: Boogie Preprocessor took 130.54 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 180.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,924 INFO L168 Benchmark]: RCFGBuilder took 465.94 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 157.6 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,925 INFO L168 Benchmark]: TraceAbstraction took 1042.92 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 99.4 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2020-09-21 12:20:33,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 382.78 ms. Allocated memory is still 140.5 MB. Free memory was 103.1 MB in the beginning and 91.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.54 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 91.7 MB in the beginning and 180.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 465.94 ms. Allocated memory is still 203.4 MB. Free memory was 180.7 MB in the beginning and 157.6 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1042.92 ms. Allocated memory is still 203.4 MB. Free memory was 157.0 MB in the beginning and 99.4 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. 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 shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. 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 TRUE j0 < 20 [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return 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, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 52 SDslu, 5 SDs, 0 SdLazy, 58 SolverSat, 9 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1012 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...