/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=DEEPEST --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_1131b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:25,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:25,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:25,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:25,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:25,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:25,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:25,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:25,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:25,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:25,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:25,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:25,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:25,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:25,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:25,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:25,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:25,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:25,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:25,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:25,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:25,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:25,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:25,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:25,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:25,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:25,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:25,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:25,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:25,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:25,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:25,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:26,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:26,002 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:26,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:26,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:26,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:26,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:26,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:26,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:26,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:26,015 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 [2020-10-27 19:43:26,066 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:26,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:26,071 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:26,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:26,072 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:26,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:26,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:26,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:26,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:26,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:26,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:26,074 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:26,074 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:26,075 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:26,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:26,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:26,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:26,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:26,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:26,076 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:26,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:26,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:26,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:26,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:26,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:26,077 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:26,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:26,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:26,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:26,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:26,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:26,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:26,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:26,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:26,521 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:26,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-27 19:43:26,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1e42233a/1937d2908207451e94bd440b94aa62fb/FLAG927664969 [2020-10-27 19:43:27,456 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:27,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1131b.c [2020-10-27 19:43:27,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1e42233a/1937d2908207451e94bd440b94aa62fb/FLAG927664969 [2020-10-27 19:43:27,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d1e42233a/1937d2908207451e94bd440b94aa62fb [2020-10-27 19:43:27,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:27,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:27,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:27,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:27,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:27,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b603a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:27, skipping insertion in model container [2020-10-27 19:43:27,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:27" (1/1) ... [2020-10-27 19:43:27,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:27,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:28,095 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:28,104 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:28,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:28,197 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:28,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28 WrapperNode [2020-10-27 19:43:28,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:28,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:28,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:28,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:28,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (1/1) ... [2020-10-27 19:43:28,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:28,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:28,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:28,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:28,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (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 [2020-10-27 19:43:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 19:43:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2020-10-27 19:43:28,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2020-10-27 19:43:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:29,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:29,326 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-27 19:43:29,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:29 BoogieIcfgContainer [2020-10-27 19:43:29,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:29,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:29,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:29,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:29,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:27" (1/3) ... [2020-10-27 19:43:29,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:29, skipping insertion in model container [2020-10-27 19:43:29,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:28" (2/3) ... [2020-10-27 19:43:29,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c62177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:29, skipping insertion in model container [2020-10-27 19:43:29,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:29" (3/3) ... [2020-10-27 19:43:29,338 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1131b.c [2020-10-27 19:43:29,351 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:29,357 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:29,372 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:29,402 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:29,403 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:29,403 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:29,403 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:29,403 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:29,403 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:29,403 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:29,403 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:29,423 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-10-27 19:43:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-27 19:43:29,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:29,431 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] [2020-10-27 19:43:29,431 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:29,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:29,438 INFO L82 PathProgramCache]: Analyzing trace with hash 376373771, now seen corresponding path program 1 times [2020-10-27 19:43:29,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:29,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [84968577] [2020-10-27 19:43:29,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:29,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:29,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:30,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-27 19:43:30,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 19:43:30,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 440 [2020-10-27 19:43:30,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 19:43:30,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:30,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:30,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:30,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:30,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:30,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:30,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:30,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 19:43:30,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:30,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:30,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:30,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 19:43:30,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 19:43:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:30,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-27 19:43:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:30,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:30,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:30,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:30,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:30,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 19:43:30,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:30,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:43:30,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:30,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 19:43:30,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [84968577] [2020-10-27 19:43:30,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:30,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:30,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383204903] [2020-10-27 19:43:30,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:30,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:30,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:30,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:30,287 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 4 states. [2020-10-27 19:43:30,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:30,692 INFO L93 Difference]: Finished difference Result 143 states and 233 transitions. [2020-10-27 19:43:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:30,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-27 19:43:30,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:30,703 INFO L225 Difference]: With dead ends: 143 [2020-10-27 19:43:30,703 INFO L226 Difference]: Without dead ends: 69 [2020-10-27 19:43:30,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 19:43:30,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-27 19:43:30,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-27 19:43:30,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 19:43:30,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2020-10-27 19:43:30,754 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 26 [2020-10-27 19:43:30,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:30,755 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2020-10-27 19:43:30,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:30,755 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2020-10-27 19:43:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-27 19:43:30,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:30,757 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] [2020-10-27 19:43:30,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:30,757 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:30,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1407820190, now seen corresponding path program 1 times [2020-10-27 19:43:30,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:30,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [313785694] [2020-10-27 19:43:30,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:30,807 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:30,807 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:30,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:30,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:30 BoogieIcfgContainer [2020-10-27 19:43:30,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:30,842 INFO L168 Benchmark]: Toolchain (without parser) took 3078.22 ms. Allocated memory is still 155.2 MB. Free memory was 130.1 MB in the beginning and 99.8 MB in the end (delta: 30.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:30,843 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 128.3 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:30,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.22 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 116.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:30,846 INFO L168 Benchmark]: Boogie Preprocessor took 65.60 ms. Allocated memory is still 155.2 MB. Free memory was 116.3 MB in the beginning and 113.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:30,846 INFO L168 Benchmark]: RCFGBuilder took 1063.01 ms. Allocated memory is still 155.2 MB. Free memory was 113.8 MB in the beginning and 111.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:30,848 INFO L168 Benchmark]: TraceAbstraction took 1506.69 ms. Allocated memory is still 155.2 MB. Free memory was 111.0 MB in the beginning and 99.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:30,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory was 128.4 MB in the beginning and 128.3 MB in the end (delta: 102.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 426.22 ms. Allocated memory is still 155.2 MB. Free memory was 129.5 MB in the beginning and 116.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.60 ms. Allocated memory is still 155.2 MB. Free memory was 116.3 MB in the beginning and 113.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1063.01 ms. Allocated memory is still 155.2 MB. Free memory was 113.8 MB in the beginning and 111.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1506.69 ms. Allocated memory is still 155.2 MB. Free memory was 111.0 MB in the beginning and 99.8 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. 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 43, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 38, overapproximation of someBinaryDOUBLEComparisonOperation at line 187, overapproximation of bitwiseXor at line 39. Possible FailurePath: [L17-L20] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L179] double y = -1.0 / 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] CALL isfinite_double(x) [L163] __int32_t hx; [L165] ieee_double_shape_type gh_u; [L166] gh_u.value = (x) [L167] EXPR gh_u.parts.msw [L167] (hx) = gh_u.parts.msw [L169] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] RET isfinite_double(x) [L182] COND TRUE isfinite_double(x) [L184] CALL, EXPR fmod_double(x, y) [L23] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L24] __uint32_t lx, ly, lz; [L27] ieee_double_shape_type ew_u; [L28] ew_u.value = (x) [L29] EXPR ew_u.parts.msw [L29] (hx) = ew_u.parts.msw [L30] EXPR ew_u.parts.lsw [L30] (lx) = ew_u.parts.lsw [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (y) [L35] EXPR ew_u.parts.msw [L35] (hy) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (ly) = ew_u.parts.lsw [L38] sx = hx & 0x80000000 [L39] hx ^= sx [L40] hy &= 0x7fffffff [L42-L43] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L44] return (x * y) / (x * y); [L184] RET, EXPR fmod_double(x, y) [L184] double res = fmod_double(x, y); [L187] COND TRUE res != x [L188] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1131b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 8 SDslu, 86 SDs, 0 SdLazy, 101 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2200 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...