/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 SequenceOfStatements --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 --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:18:57,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:18:57,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:18:57,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:18:57,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:18:57,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:18:57,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:18:57,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:18:57,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:18:57,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:18:57,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:18:57,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:18:57,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:18:57,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:18:57,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:18:57,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:18:57,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:18:57,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:18:57,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:18:57,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:18:57,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:18:57,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:18:57,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:18:57,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:18:57,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:18:57,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:18:57,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:18:57,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:18:57,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:18:57,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:18:57,794 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:18:57,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:18:57,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:18:57,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:18:57,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:18:57,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:18:57,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:18:57,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:18:57,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:18:57,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:18:57,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:18:57,801 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 [2020-10-13 10:18:57,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:18:57,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:18:57,826 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:18:57,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:18:57,827 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:18:57,827 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:18:57,827 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:18:57,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:18:57,829 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:18:57,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:18:57,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:18:57,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:18:57,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:18:57,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:18:57,830 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:18:57,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:18:57,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:18:57,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:18:57,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:18:57,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:18:57,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:18:57,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:18:57,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:18:57,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:18:57,832 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 -> SequenceOfStatements 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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=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;unknown-allowed=true; [2020-10-13 10:18:58,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:18:58,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:18:58,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:18:58,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:18:58,165 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:18:58,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-10-13 10:18:58,239 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ed045d46/442a24d15a794a908fc96809b730744d/FLAGef350f862 [2020-10-13 10:18:58,734 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:18:58,735 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1122a.c [2020-10-13 10:18:58,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ed045d46/442a24d15a794a908fc96809b730744d/FLAGef350f862 [2020-10-13 10:18:59,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3ed045d46/442a24d15a794a908fc96809b730744d [2020-10-13 10:18:59,047 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:18:59,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:18:59,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:18:59,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:18:59,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:18:59,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb81a5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59, skipping insertion in model container [2020-10-13 10:18:59,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:18:59,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:18:59,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:18:59,341 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:18:59,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:18:59,519 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:18:59,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59 WrapperNode [2020-10-13 10:18:59,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:18:59,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:18:59,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:18:59,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:18:59,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,545 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (1/1) ... [2020-10-13 10:18:59,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:18:59,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:18:59,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:18:59,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:18:59,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (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 [2020-10-13 10:18:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:18:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:18:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-13 10:18:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-13 10:18:59,647 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:18:59,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:18:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-13 10:18:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:19:00,201 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:19:00,201 INFO L295 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-13 10:19:00,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:00 BoogieIcfgContainer [2020-10-13 10:19:00,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:19:00,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:19:00,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:19:00,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:19:00,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:18:59" (1/3) ... [2020-10-13 10:19:00,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734029b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:00, skipping insertion in model container [2020-10-13 10:19:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:18:59" (2/3) ... [2020-10-13 10:19:00,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734029b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:19:00, skipping insertion in model container [2020-10-13 10:19:00,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:19:00" (3/3) ... [2020-10-13 10:19:00,223 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2020-10-13 10:19:00,232 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:19:00,240 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:19:00,255 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:19:00,282 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:19:00,283 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:19:00,283 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:19:00,283 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:19:00,283 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:19:00,283 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:19:00,284 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:19:00,284 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:19:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-13 10:19:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-13 10:19:00,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:00,311 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] [2020-10-13 10:19:00,312 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:00,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:00,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1778081115, now seen corresponding path program 1 times [2020-10-13 10:19:00,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:00,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286775795] [2020-10-13 10:19:00,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:00,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:00,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-13 10:19:00,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:19:00,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-13 10:19:00,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 10:19:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 10:19:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:19:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:00,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:00,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:00,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:00,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 10:19:00,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:00,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:19:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:00,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:19:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:19:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:00,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 10:19:00,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 10:19:00,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 10:19:00,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:00,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-13 10:19:00,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:00,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:19:00,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 10:19:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:19:00,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:19:00,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:19:00,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:19:00,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:19:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 10:19:00,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:19:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 10:19:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:19:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 10:19:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:19:00,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:19:00,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286775795] [2020-10-13 10:19:01,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:19:01,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 10:19:01,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815774720] [2020-10-13 10:19:01,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 10:19:01,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:19:01,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 10:19:01,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 10:19:01,029 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 4 states. [2020-10-13 10:19:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:19:01,367 INFO L93 Difference]: Finished difference Result 128 states and 210 transitions. [2020-10-13 10:19:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 10:19:01,370 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-10-13 10:19:01,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:19:01,382 INFO L225 Difference]: With dead ends: 128 [2020-10-13 10:19:01,383 INFO L226 Difference]: Without dead ends: 64 [2020-10-13 10:19:01,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 10:19:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-13 10:19:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-13 10:19:01,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-13 10:19:01,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2020-10-13 10:19:01,438 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 22 [2020-10-13 10:19:01,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:19:01,438 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2020-10-13 10:19:01,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 10:19:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2020-10-13 10:19:01,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-13 10:19:01,440 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:19:01,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:19:01,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:19:01,441 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:19:01,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:19:01,442 INFO L82 PathProgramCache]: Analyzing trace with hash -943917416, now seen corresponding path program 1 times [2020-10-13 10:19:01,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:19:01,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664009108] [2020-10-13 10:19:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:19:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 10:19:01,485 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 10:19:01,485 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 10:19:01,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 10:19:01,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:19:01 BoogieIcfgContainer [2020-10-13 10:19:01,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:19:01,513 INFO L168 Benchmark]: Toolchain (without parser) took 2463.41 ms. Allocated memory was 145.8 MB in the beginning and 233.3 MB in the end (delta: 87.6 MB). Free memory was 101.6 MB in the beginning and 180.5 MB in the end (delta: -78.8 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:01,514 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:19:01,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.54 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 101.4 MB in the beginning and 176.0 MB in the end (delta: -74.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:01,516 INFO L168 Benchmark]: Boogie Preprocessor took 61.46 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:01,517 INFO L168 Benchmark]: RCFGBuilder took 627.14 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 139.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-10-13 10:19:01,518 INFO L168 Benchmark]: TraceAbstraction took 1299.48 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 138.7 MB in the beginning and 180.5 MB in the end (delta: -41.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 10:19:01,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 465.54 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 101.4 MB in the beginning and 176.0 MB in the end (delta: -74.6 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.46 ms. Allocated memory is still 200.8 MB. Free memory was 176.0 MB in the beginning and 173.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 627.14 ms. Allocated memory is still 200.8 MB. Free memory was 173.3 MB in the beginning and 139.4 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1299.48 ms. Allocated memory was 200.8 MB in the beginning and 233.3 MB in the end (delta: 32.5 MB). Free memory was 138.7 MB in the beginning and 180.5 MB in the end (delta: -41.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 176]: 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 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L170] double x = 1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L172] 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); [L172] RET, EXPR fmod_double(x, y) [L172] double res = fmod_double(x, y); [L175] CALL, EXPR isnan_double(res) [L16] return x != x; [L175] RET, EXPR isnan_double(res) [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 8 SDslu, 79 SDs, 0 SdLazy, 95 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 1134 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...