/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --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 08:51:22,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:51:22,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:51:22,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:51:22,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:51:22,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:51:22,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:51:22,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:51:22,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:51:22,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:51:22,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:51:22,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:51:22,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:51:22,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:51:22,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:51:22,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:51:22,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:51:22,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:51:22,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:51:22,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:51:22,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:51:22,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:51:22,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:51:22,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:51:22,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:51:22,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:51:22,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:51:22,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:51:22,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:51:22,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:51:22,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:51:22,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:51:22,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:51:22,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:51:22,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:51:22,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:51:22,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:51:22,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:51:22,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:51:22,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:51:22,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:51:22,163 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 08:51:22,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:51:22,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:51:22,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:51:22,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:51:22,218 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:51:22,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:51:22,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:51:22,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:51:22,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:51:22,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:51:22,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:51:22,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:51:22,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:51:22,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:51:22,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:51:22,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:51:22,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:51:22,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:51:22,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:51:22,223 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:51:22,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:51:22,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:51:22,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:51:22,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:51:22,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:51:22,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:51:22,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:51:22,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:51:22,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:51:22,225 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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;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=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 08:51:22,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:51:22,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:51:22,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:51:22,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:51:22,787 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:51:22,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 08:51:22,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470dcdb9a/d7c4ac8e38ca4c748507dfd6c2e2463b/FLAG1f48a596c [2020-09-25 08:51:23,438 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:51:23,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-09-25 08:51:23,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470dcdb9a/d7c4ac8e38ca4c748507dfd6c2e2463b/FLAG1f48a596c [2020-09-25 08:51:23,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/470dcdb9a/d7c4ac8e38ca4c748507dfd6c2e2463b [2020-09-25 08:51:23,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:51:23,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:51:23,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:51:23,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:51:23,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:51:23,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:51:23" (1/1) ... [2020-09-25 08:51:23,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1097ec73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:23, skipping insertion in model container [2020-09-25 08:51:23,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:51:23" (1/1) ... [2020-09-25 08:51:23,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:51:23,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:51:24,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:51:24,152 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:51:24,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:51:24,310 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:51:24,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24 WrapperNode [2020-09-25 08:51:24,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:51:24,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:51:24,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:51:24,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:51:24,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (1/1) ... [2020-09-25 08:51:24,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:51:24,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:51:24,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:51:24,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:51:24,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (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 08:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:51:24,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-09-25 08:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 08:51:24,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:51:24,441 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-09-25 08:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 08:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:51:24,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 08:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 08:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:51:24,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:51:24,960 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:51:24,960 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-25 08:51:24,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:51:24 BoogieIcfgContainer [2020-09-25 08:51:24,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:51:24,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:51:24,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:51:24,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:51:24,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:51:23" (1/3) ... [2020-09-25 08:51:24,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@982e0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:51:24, skipping insertion in model container [2020-09-25 08:51:24,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:51:24" (2/3) ... [2020-09-25 08:51:24,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@982e0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:51:24, skipping insertion in model container [2020-09-25 08:51:24,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:51:24" (3/3) ... [2020-09-25 08:51:24,976 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-09-25 08:51:24,988 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:51:24,999 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:51:25,020 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:51:25,048 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:51:25,049 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:51:25,049 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:51:25,049 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:51:25,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:51:25,049 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:51:25,049 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:51:25,049 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:51:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states. [2020-09-25 08:51:25,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 08:51:25,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:51:25,083 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 08:51:25,084 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:51:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:51:25,091 INFO L82 PathProgramCache]: Analyzing trace with hash -911557548, now seen corresponding path program 1 times [2020-09-25 08:51:25,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:51:25,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741719493] [2020-09-25 08:51:25,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:51:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:25,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:25,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 08:51:25,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:25,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-25 08:51:25,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:25,379 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-25 08:51:25,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:25,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:51:25,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:51:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:25,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:25,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:25,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 08:51:25,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:25,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:51:25,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:25,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:51:25,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:25,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:51:25,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-25 08:51:25,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:25,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:25,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:25,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 08:51:25,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:25,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 08:51:25,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:25,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:25,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:25,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 08:51:25,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:25,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:51:25,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 08:51:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:51:25,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:51:25,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:51:25,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:51:25,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:51:25,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 08:51:25,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:51:25,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:51:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:51:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 08:51:25,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:51:25,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:51:25,598 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 08:51:25,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741719493] [2020-09-25 08:51:25,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:51:25,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:51:25,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628489237] [2020-09-25 08:51:25,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:51:25,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:51:25,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:51:25,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:51:25,635 INFO L87 Difference]: Start difference. First operand 99 states. Second operand 4 states. [2020-09-25 08:51:25,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:51:25,927 INFO L93 Difference]: Finished difference Result 181 states and 219 transitions. [2020-09-25 08:51:25,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 08:51:25,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-25 08:51:25,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:51:25,947 INFO L225 Difference]: With dead ends: 181 [2020-09-25 08:51:25,947 INFO L226 Difference]: Without dead ends: 92 [2020-09-25 08:51:25,953 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 08:51:25,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-25 08:51:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-09-25 08:51:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-09-25 08:51:26,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-09-25 08:51:26,042 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 35 [2020-09-25 08:51:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:51:26,042 INFO L479 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-09-25 08:51:26,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:51:26,043 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-09-25 08:51:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-25 08:51:26,045 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:51:26,046 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 08:51:26,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:51:26,046 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:51:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:51:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash 2058435850, now seen corresponding path program 1 times [2020-09-25 08:51:26,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:51:26,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905799488] [2020-09-25 08:51:26,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:51:26,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:51:26,096 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:51:26,096 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:51:26,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:51:26,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:51:26 BoogieIcfgContainer [2020-09-25 08:51:26,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:51:26,130 INFO L168 Benchmark]: Toolchain (without parser) took 2343.80 ms. Allocated memory was 138.9 MB in the beginning and 232.8 MB in the end (delta: 93.8 MB). Free memory was 100.5 MB in the beginning and 196.2 MB in the end (delta: -95.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:51:26,131 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:51:26,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.16 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 99.9 MB in the beginning and 178.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 08:51:26,133 INFO L168 Benchmark]: Boogie Preprocessor took 52.31 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 176.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:51:26,134 INFO L168 Benchmark]: RCFGBuilder took 602.12 ms. Allocated memory is still 200.8 MB. Free memory was 176.8 MB in the beginning and 150.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:51:26,135 INFO L168 Benchmark]: TraceAbstraction took 1158.33 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 149.6 MB in the beginning and 196.2 MB in the end (delta: -46.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 08:51:26,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 138.9 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 521.16 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 99.9 MB in the beginning and 178.8 MB in the end (delta: -78.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.31 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 176.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 602.12 ms. Allocated memory is still 200.8 MB. Free memory was 176.8 MB in the beginning and 150.2 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1158.33 ms. Allocated memory was 200.8 MB in the beginning and 232.8 MB in the end (delta: 32.0 MB). Free memory was 149.6 MB in the beginning and 196.2 MB in the end (delta: -46.6 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...