/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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 language data_model -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:27:05,680 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:27:05,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:27:05,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:27:05,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:27:05,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:27:05,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:27:05,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:27:05,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:27:05,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:27:05,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:27:05,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:27:05,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:27:05,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:27:05,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:27:05,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:27:05,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:27:05,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:27:05,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:27:05,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:27:05,789 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:27:05,791 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:27:05,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:27:05,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:27:05,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 14:27:05,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 14:27:05,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 14:27:05,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 14:27:05,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 14:27:05,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 14:27:05,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 14:27:05,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 14:27:05,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 14:27:05,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 14:27:05,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 14:27:05,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 14:27:05,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 14:27:05,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 14:27:05,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:27:05,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:27:05,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:27:05,844 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 [2020-10-28 14:27:05,897 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:27:05,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:27:05,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:27:05,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:27:05,903 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:27:05,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:27:05,904 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:27:05,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:27:05,904 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:27:05,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:27:05,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:27:05,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:27:05,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:27:05,907 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:27:05,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:27:05,907 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:27:05,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:27:05,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:27:05,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:27:05,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:27:05,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:27:05,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:27:05,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:27:05,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:27:05,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:27:05,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:27:05,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:27:05,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:27:05,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:27:05,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:27:06,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:27:06,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:27:06,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:27:06,389 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:27:06,392 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:27:06,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-10-28 14:27:06,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137459729/f61031108535441c94f98d0c4617be8f/FLAG97e536255 [2020-10-28 14:27:07,192 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:27:07,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1130a.c [2020-10-28 14:27:07,207 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137459729/f61031108535441c94f98d0c4617be8f/FLAG97e536255 [2020-10-28 14:27:07,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/137459729/f61031108535441c94f98d0c4617be8f [2020-10-28 14:27:07,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:27:07,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:27:07,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:07,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:27:07,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:27:07,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f8a761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07, skipping insertion in model container [2020-10-28 14:27:07,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:27:07,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:27:07,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:07,834 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 14:27:07,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 14:27:07,908 INFO L208 MainTranslator]: Completed translation [2020-10-28 14:27:07,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07 WrapperNode [2020-10-28 14:27:07,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:27:07,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 14:27:07,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 14:27:07,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 14:27:07,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (1/1) ... [2020-10-28 14:27:07,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 14:27:07,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 14:27:07,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 14:27:07,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 14:27:07,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (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 [2020-10-28 14:27:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 14:27:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 14:27:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 14:27:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-28 14:27:08,096 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-28 14:27:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-28 14:27:08,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 14:27:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 14:27:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 14:27:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 14:27:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 14:27:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-28 14:27:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-28 14:27:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-28 14:27:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 14:27:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 14:27:08,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 14:27:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 14:27:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 14:27:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-28 14:27:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 14:27:08,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 14:27:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 14:27:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-28 14:27:08,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 14:27:09,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 14:27:09,196 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-28 14:27:09,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:09 BoogieIcfgContainer [2020-10-28 14:27:09,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 14:27:09,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 14:27:09,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 14:27:09,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 14:27:09,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:27:07" (1/3) ... [2020-10-28 14:27:09,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec417d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:09, skipping insertion in model container [2020-10-28 14:27:09,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:27:07" (2/3) ... [2020-10-28 14:27:09,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec417d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:27:09, skipping insertion in model container [2020-10-28 14:27:09,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:27:09" (3/3) ... [2020-10-28 14:27:09,208 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-10-28 14:27:09,221 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 14:27:09,227 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 14:27:09,242 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 14:27:09,272 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 14:27:09,273 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 14:27:09,273 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 14:27:09,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 14:27:09,273 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 14:27:09,273 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 14:27:09,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 14:27:09,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 14:27:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2020-10-28 14:27:09,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-28 14:27:09,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:09,301 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] [2020-10-28 14:27:09,301 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:09,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1874786986, now seen corresponding path program 1 times [2020-10-28 14:27:09,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:09,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [516233740] [2020-10-28 14:27:09,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 14:27:09,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:27:09,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 14:27:09,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 14:27:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 14:27:09,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 14:27:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:09,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:09,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:09,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 14:27:09,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 14:27:09,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 14:27:09,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:09,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 14:27:09,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:09,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:10,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 14:27:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 14:27:10,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:10,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 14:27:10,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 14:27:10,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 14:27:10,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 14:27:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 14:27:10,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 14:27:10,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 14:27:10,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 14:27:10,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-28 14:27:10,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 14:27:10,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 14:27:10,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 14:27:10,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [516233740] [2020-10-28 14:27:10,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 14:27:10,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 14:27:10,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481473325] [2020-10-28 14:27:10,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 14:27:10,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 14:27:10,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 14:27:10,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 14:27:10,079 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 4 states. [2020-10-28 14:27:10,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 14:27:10,594 INFO L93 Difference]: Finished difference Result 147 states and 238 transitions. [2020-10-28 14:27:10,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 14:27:10,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-28 14:27:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 14:27:10,605 INFO L225 Difference]: With dead ends: 147 [2020-10-28 14:27:10,606 INFO L226 Difference]: Without dead ends: 70 [2020-10-28 14:27:10,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 14:27:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-28 14:27:10,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-10-28 14:27:10,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-28 14:27:10,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2020-10-28 14:27:10,657 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 20 [2020-10-28 14:27:10,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 14:27:10,658 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2020-10-28 14:27:10,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 14:27:10,658 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2020-10-28 14:27:10,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 14:27:10,660 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 14:27:10,660 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] [2020-10-28 14:27:10,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 14:27:10,660 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 14:27:10,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 14:27:10,661 INFO L82 PathProgramCache]: Analyzing trace with hash -83505235, now seen corresponding path program 1 times [2020-10-28 14:27:10,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 14:27:10,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741985890] [2020-10-28 14:27:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 14:27:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 14:27:10,707 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 14:27:10,707 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 14:27:10,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 14:27:10,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 02:27:10 BoogieIcfgContainer [2020-10-28 14:27:10,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 14:27:10,732 INFO L168 Benchmark]: Toolchain (without parser) took 3227.89 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 104.5 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,733 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:27:10,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 111.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,735 INFO L168 Benchmark]: Boogie Preprocessor took 71.78 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,736 INFO L168 Benchmark]: RCFGBuilder took 1212.99 ms. Allocated memory is still 151.0 MB. Free memory was 108.6 MB in the beginning and 105.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,737 INFO L168 Benchmark]: TraceAbstraction took 1529.38 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 104.5 MB in the end (delta: 825.5 kB). Peak memory consumption was 825.5 kB. Max. memory is 8.0 GB. [2020-10-28 14:27:10,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 395.06 ms. Allocated memory is still 151.0 MB. Free memory was 124.5 MB in the beginning and 111.1 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 71.78 ms. Allocated memory is still 151.0 MB. Free memory was 111.1 MB in the beginning and 108.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1212.99 ms. Allocated memory is still 151.0 MB. Free memory was 108.6 MB in the beginning and 105.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1529.38 ms. Allocated memory is still 151.0 MB. Free memory was 105.3 MB in the beginning and 104.5 MB in the end (delta: 825.5 kB). Peak memory consumption was 825.5 kB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1130a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 16 SDslu, 84 SDs, 0 SdLazy, 103 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1330 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...