/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=NARROWEST --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_1131a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:59:41,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:59:41,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:59:41,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:59:41,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:59:41,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:59:41,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:59:41,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:59:41,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:59:41,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:59:41,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:59:41,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:59:41,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:59:41,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:59:41,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:59:41,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:59:41,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:59:41,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:59:41,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:59:41,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:59:41,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:59:41,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:59:41,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:59:41,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:59:41,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:59:41,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:59:41,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:59:41,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:59:41,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:59:41,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:59:41,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:59:41,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:59:41,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:59:41,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:59:41,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:59:41,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:59:41,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:59:41,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:59:41,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:59:41,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:59:41,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:59:41,716 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 01:59:41,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:59:41,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:59:41,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:59:41,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:59:41,745 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:59:41,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:59:41,746 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:59:41,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:59:41,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:59:41,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:59:41,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:59:41,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:59:41,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:59:41,747 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:59:41,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:59:41,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:59:41,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:59:41,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:59:41,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:59:41,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:59:41,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:59:41,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:59:41,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:59:41,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:59:41,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:59:41,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:59:41,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:59:41,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:59:41,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:59:41,751 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:59:42,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:59:42,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:59:42,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:59:42,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:59:42,261 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:59:42,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 01:59:42,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a348cefa8/0e1521f96fe34469b733d93739482c5b/FLAGbbe20d913 [2020-09-25 01:59:42,976 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:59:42,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131a.c [2020-09-25 01:59:42,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a348cefa8/0e1521f96fe34469b733d93739482c5b/FLAGbbe20d913 [2020-09-25 01:59:43,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a348cefa8/0e1521f96fe34469b733d93739482c5b [2020-09-25 01:59:43,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:59:43,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:59:43,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:59:43,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:59:43,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:59:43,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43, skipping insertion in model container [2020-09-25 01:59:43,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:59:43,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:59:43,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:59:43,621 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:59:43,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:59:43,814 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:59:43,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43 WrapperNode [2020-09-25 01:59:43,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:59:43,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:59:43,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:59:43,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:59:43,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (1/1) ... [2020-09-25 01:59:43,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:59:43,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:59:43,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:59:43,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:59:43,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (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 01:59:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:59:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:59:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-09-25 01:59:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-09-25 01:59:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-09-25 01:59:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:59:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:59:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-09-25 01:59:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-09-25 01:59:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-09-25 01:59:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:59:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-25 01:59:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:59:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:59:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-25 01:59:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:59:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-09-25 01:59:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:59:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:59:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-09-25 01:59:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:59:44,719 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:59:44,720 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-25 01:59:44,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:59:44 BoogieIcfgContainer [2020-09-25 01:59:44,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:59:44,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:59:44,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:59:44,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:59:44,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:59:43" (1/3) ... [2020-09-25 01:59:44,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5ba51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:59:44, skipping insertion in model container [2020-09-25 01:59:44,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:59:43" (2/3) ... [2020-09-25 01:59:44,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c5ba51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:59:44, skipping insertion in model container [2020-09-25 01:59:44,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:59:44" (3/3) ... [2020-09-25 01:59:44,739 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131a.c [2020-09-25 01:59:44,752 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:59:44,763 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:59:44,787 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:59:44,823 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:59:44,824 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:59:44,824 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:59:44,824 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:59:44,824 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:59:44,824 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:59:44,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:59:44,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:59:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2020-09-25 01:59:44,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 01:59:44,867 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:59:44,868 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, 1, 1] [2020-09-25 01:59:44,869 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:59:44,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:59:44,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1076720203, now seen corresponding path program 1 times [2020-09-25 01:59:44,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:59:44,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1636315539] [2020-09-25 01:59:44,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:59:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:45,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:45,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-25 01:59:45,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:59:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 01:59:45,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:45,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-09-25 01:59:45,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:45,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:59:45,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:59:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:45,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:45,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:59:45,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:59:45,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:59:45,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:59:45,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:45,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:59:45,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 01:59:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:45,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:45,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:59:45,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:59:45,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:59:45,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:45,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 01:59:45,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:45,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:45,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 01:59:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:59:45,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:59:45,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:59:45,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-25 01:59:45,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:59:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:59:45,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:59:45,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:59:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:59:45,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:59:45,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:59:45,704 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 01:59:45,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1636315539] [2020-09-25 01:59:45,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:59:45,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:59:45,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003911878] [2020-09-25 01:59:45,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:59:45,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:59:45,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:59:45,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:59:45,737 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2020-09-25 01:59:46,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:59:46,291 INFO L93 Difference]: Finished difference Result 414 states and 503 transitions. [2020-09-25 01:59:46,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:59:46,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-25 01:59:46,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:59:46,310 INFO L225 Difference]: With dead ends: 414 [2020-09-25 01:59:46,310 INFO L226 Difference]: Without dead ends: 209 [2020-09-25 01:59:46,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 01:59:46,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-09-25 01:59:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-09-25 01:59:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-09-25 01:59:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 235 transitions. [2020-09-25 01:59:46,388 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 235 transitions. Word has length 51 [2020-09-25 01:59:46,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:59:46,389 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 235 transitions. [2020-09-25 01:59:46,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:59:46,389 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 235 transitions. [2020-09-25 01:59:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 01:59:46,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:59:46,393 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, 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 01:59:46,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:59:46,394 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:59:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:59:46,395 INFO L82 PathProgramCache]: Analyzing trace with hash -484158952, now seen corresponding path program 1 times [2020-09-25 01:59:46,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:59:46,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516302483] [2020-09-25 01:59:46,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:59:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 01:59:46,527 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 01:59:46,527 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 01:59:46,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:59:46,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:59:46 BoogieIcfgContainer [2020-09-25 01:59:46,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 01:59:46,583 INFO L168 Benchmark]: Toolchain (without parser) took 3309.04 ms. Allocated memory was 147.8 MB in the beginning and 233.8 MB in the end (delta: 86.0 MB). Free memory was 103.9 MB in the beginning and 115.7 MB in the end (delta: -11.7 MB). Peak memory consumption was 74.3 MB. Max. memory is 7.1 GB. [2020-09-25 01:59:46,586 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.8 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 01:59:46,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.81 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 179.7 MB in the end (delta: -76.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:59:46,588 INFO L168 Benchmark]: Boogie Preprocessor took 71.15 ms. Allocated memory is still 204.5 MB. Free memory was 179.7 MB in the beginning and 177.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 01:59:46,590 INFO L168 Benchmark]: RCFGBuilder took 840.92 ms. Allocated memory is still 204.5 MB. Free memory was 177.1 MB in the beginning and 129.3 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-09-25 01:59:46,591 INFO L168 Benchmark]: TraceAbstraction took 1849.99 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 128.7 MB in the beginning and 115.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2020-09-25 01:59:46,602 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.8 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 537.81 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 179.7 MB in the end (delta: -76.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.15 ms. Allocated memory is still 204.5 MB. Free memory was 179.7 MB in the beginning and 177.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 840.92 ms. Allocated memory is still 204.5 MB. Free memory was 177.1 MB in the beginning and 129.3 MB in the end (delta: 47.8 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1849.99 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 128.7 MB in the beginning and 115.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 189]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 188, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L180] double y = 1.0 / 0.0; [L181] double x = __VERIFIER_nondet_double(); [L183] CALL isfinite_double(x) [L164] __int32_t hx; [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L183] RET isfinite_double(x) [L183] COND TRUE isfinite_double(x) [L185] CALL, EXPR fmod_double(x, y) [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); [L185] RET, EXPR fmod_double(x, y) [L185] double res = fmod_double(x, y); [L188] COND TRUE res != x [L189] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 37 SDslu, 182 SDs, 0 SdLazy, 260 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 4750 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...