/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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 14:27:57,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:27:57,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:27:57,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:27:57,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:27:57,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:27:57,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:27:57,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:27:57,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:27:57,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:27:57,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:27:57,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:27:57,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:27:57,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:27:57,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:27:57,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:27:57,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:27:57,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:27:57,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:27:57,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:27:57,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:27:57,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:27:57,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:27:57,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:27:57,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:27:57,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:27:57,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:27:57,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:27:57,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:27:57,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:27:57,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:27:57,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:27:57,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:27:57,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:27:57,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:27:57,138 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:27:57,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:27:57,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:27:57,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:27:57,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:27:57,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:27:57,143 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 14:27:57,196 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:27:57,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:27:57,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:27:57,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:27:57,199 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:27:57,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:27:57,200 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:27:57,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:27:57,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:27:57,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:27:57,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:27:57,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:27:57,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:27:57,203 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:27:57,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:27:57,203 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:27:57,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:27:57,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:27:57,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:27:57,204 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:27:57,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:27:57,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:27:57,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:27:57,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:27:57,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:27:57,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:27:57,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:27:57,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:27:57,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:27:57,206 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:27:57,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:27:57,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:27:57,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:27:57,697 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:27:57,698 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:27:57,699 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 14:27:57,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33c723c41/efa08567f11242a6b3e64dbbe7a1674b/FLAG4700d0d7e [2020-09-25 14:27:58,367 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:27:58,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 14:27:58,380 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33c723c41/efa08567f11242a6b3e64dbbe7a1674b/FLAG4700d0d7e [2020-09-25 14:27:58,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33c723c41/efa08567f11242a6b3e64dbbe7a1674b [2020-09-25 14:27:58,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:27:58,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:27:58,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:27:58,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:27:58,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:27:58,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:27:58" (1/1) ... [2020-09-25 14:27:58,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b7bdc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:58, skipping insertion in model container [2020-09-25 14:27:58,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:27:58" (1/1) ... [2020-09-25 14:27:58,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:27:58,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:27:59,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:27:59,032 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:27:59,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:27:59,200 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:27:59,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59 WrapperNode [2020-09-25 14:27:59,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:27:59,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:27:59,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:27:59,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:27:59,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (1/1) ... [2020-09-25 14:27:59,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:27:59,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:27:59,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:27:59,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:27:59,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (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 14:27:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:27:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:27:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-09-25 14:27:59,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 14:27:59,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:27:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:27:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-09-25 14:27:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 14:27:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 14:27:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:27:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:27:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:27:59,852 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:27:59,852 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 14:27:59,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:27:59 BoogieIcfgContainer [2020-09-25 14:27:59,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:27:59,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:27:59,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:27:59,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:27:59,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:27:58" (1/3) ... [2020-09-25 14:27:59,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454a0a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:27:59, skipping insertion in model container [2020-09-25 14:27:59,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:27:59" (2/3) ... [2020-09-25 14:27:59,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454a0a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:27:59, skipping insertion in model container [2020-09-25 14:27:59,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:27:59" (3/3) ... [2020-09-25 14:27:59,869 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-09-25 14:27:59,880 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:27:59,890 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:27:59,914 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:27:59,949 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:27:59,949 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:27:59,950 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:27:59,950 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:27:59,950 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:27:59,950 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:27:59,950 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:27:59,950 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:27:59,978 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-09-25 14:27:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 14:27:59,989 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:27:59,991 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 14:27:59,991 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:00,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:00,000 INFO L82 PathProgramCache]: Analyzing trace with hash -911557548, now seen corresponding path program 1 times [2020-09-25 14:28:00,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:00,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231849985] [2020-09-25 14:28:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:00,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:00,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 14:28:00,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 14:28:00,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:00,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 14:28:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:28:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:00,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:00,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:00,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:28:00,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:00,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:00,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:00,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 14:28:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:00,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:00,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:00,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:28:00,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:00,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:28:00,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:00,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:00,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 14:28:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:00,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 14:28:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:00,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:00,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:28:00,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:00,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:28:00,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:00,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:00,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:28:00,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:28:00,515 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 14:28:00,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231849985] [2020-09-25 14:28:00,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:28:00,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:28:00,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328556092] [2020-09-25 14:28:00,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:28:00,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:00,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:28:00,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:28:00,557 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 4 states. [2020-09-25 14:28:00,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:28:00,872 INFO L93 Difference]: Finished difference Result 181 states and 219 transitions. [2020-09-25 14:28:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 14:28:00,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-25 14:28:00,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:28:00,905 INFO L225 Difference]: With dead ends: 181 [2020-09-25 14:28:00,905 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 14:28:00,910 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 14:28:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 14:28:00,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-25 14:28:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 14:28:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-09-25 14:28:00,971 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 35 [2020-09-25 14:28:00,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:28:00,971 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-09-25 14:28:00,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:28:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-09-25 14:28:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 14:28:00,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:00,975 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 14:28:00,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:28:00,975 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:00,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:00,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2058435850, now seen corresponding path program 1 times [2020-09-25 14:28:00,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:00,977 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152495839] [2020-09-25 14:28:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:28:01,027 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:28:01,027 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:28:01,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:28:01,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:28:01 BoogieIcfgContainer [2020-09-25 14:28:01,058 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:28:01,061 INFO L168 Benchmark]: Toolchain (without parser) took 2356.01 ms. Allocated memory was 141.0 MB in the beginning and 235.4 MB in the end (delta: 94.4 MB). Free memory was 104.2 MB in the beginning and 195.3 MB in the end (delta: -91.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:28:01,063 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:28:01,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.32 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 182.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 14:28:01,065 INFO L168 Benchmark]: Boogie Preprocessor took 55.53 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 179.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 14:28:01,066 INFO L168 Benchmark]: RCFGBuilder took 601.11 ms. Allocated memory is still 204.5 MB. Free memory was 179.9 MB in the beginning and 154.4 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:28:01,066 INFO L168 Benchmark]: TraceAbstraction took 1197.45 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 153.7 MB in the beginning and 195.3 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:28:01,071 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 492.32 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.6 MB in the beginning and 182.5 MB in the end (delta: -79.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.53 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 179.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 601.11 ms. Allocated memory is still 204.5 MB. Free memory was 179.9 MB in the beginning and 154.4 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1197.45 ms. Allocated memory was 204.5 MB in the beginning and 235.4 MB in the end (delta: 30.9 MB). Free memory was 153.7 MB in the beginning and 195.3 MB in the end (delta: -41.6 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...