/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_1122b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:22,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:22,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:22,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:22,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:22,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:22,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:22,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:22,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:22,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:22,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:22,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:22,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:22,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:22,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:22,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:22,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:22,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:22,998 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:23,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:23,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:23,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:23,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:23,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:23,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:23,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:23,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:23,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:23,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:23,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 19:43:23,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 19:43:23,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 19:43:23,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 19:43:23,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 19:43:23,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 19:43:23,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 19:43:23,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 19:43:23,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 19:43:23,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:23,029 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:23,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:23,031 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 19:43:23,058 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:23,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:23,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:23,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:23,061 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:23,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:23,062 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:23,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:23,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:23,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:23,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:23,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:23,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:23,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:23,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:23,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:23,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:23,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:23,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:23,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:23,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:23,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:23,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:23,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:23,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:23,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:23,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:23,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:23,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:23,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:23,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:23,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:23,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:23,490 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:23,491 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:23,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-10-27 19:43:23,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f26fe4d/757e359b284d49ca800f56a07e13b785/FLAG7e415f63d [2020-10-27 19:43:24,278 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:24,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-10-27 19:43:24,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f26fe4d/757e359b284d49ca800f56a07e13b785/FLAG7e415f63d [2020-10-27 19:43:24,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/02f26fe4d/757e359b284d49ca800f56a07e13b785 [2020-10-27 19:43:24,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:24,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:24,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:24,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:24,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:24,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310577ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:24, skipping insertion in model container [2020-10-27 19:43:24,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:24" (1/1) ... [2020-10-27 19:43:24,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:24,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:24,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:24,997 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:25,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:25,075 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:25,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25 WrapperNode [2020-10-27 19:43:25,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:25,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:25,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:25,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:25,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (1/1) ... [2020-10-27 19:43:25,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:25,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:25,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:25,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:25,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (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 19:43:25,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-10-27 19:43:25,296 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2020-10-27 19:43:25,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 19:43:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:26,000 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:26,000 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-27 19:43:26,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:26 BoogieIcfgContainer [2020-10-27 19:43:26,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:26,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:26,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:26,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:26,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:24" (1/3) ... [2020-10-27 19:43:26,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5300c59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:26, skipping insertion in model container [2020-10-27 19:43:26,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:25" (2/3) ... [2020-10-27 19:43:26,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5300c59e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:26, skipping insertion in model container [2020-10-27 19:43:26,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:26" (3/3) ... [2020-10-27 19:43:26,013 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-10-27 19:43:26,029 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:26,035 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:26,052 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:26,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:26,086 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:26,086 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:26,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:26,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:26,087 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:26,087 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:26,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:26,110 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-27 19:43:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-27 19:43:26,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:26,119 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] [2020-10-27 19:43:26,120 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:26,127 INFO L82 PathProgramCache]: Analyzing trace with hash 980170601, now seen corresponding path program 1 times [2020-10-27 19:43:26,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:26,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024476092] [2020-10-27 19:43:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 19:43:26,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 19:43:26,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 19:43:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:26,725 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-27 19:43:26,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:26,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:26,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 19:43:26,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:26,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 19:43:26,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 19:43:26,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 19:43:26,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-27 19:43:26,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 19:43:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:43:26,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-27 19:43:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:26,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:26,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:26,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:26,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:26,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 19:43:26,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 19:43:26,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:26,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 19:43:26,932 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 19:43:26,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024476092] [2020-10-27 19:43:26,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:26,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:26,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570094738] [2020-10-27 19:43:26,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:26,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:26,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:26,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:26,970 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2020-10-27 19:43:27,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:27,336 INFO L93 Difference]: Finished difference Result 133 states and 216 transitions. [2020-10-27 19:43:27,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:27,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-10-27 19:43:27,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:27,348 INFO L225 Difference]: With dead ends: 133 [2020-10-27 19:43:27,348 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 19:43:27,352 INFO L677 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 [2020-10-27 19:43:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 19:43:27,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 19:43:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 19:43:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 91 transitions. [2020-10-27 19:43:27,403 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 91 transitions. Word has length 23 [2020-10-27 19:43:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:27,404 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 91 transitions. [2020-10-27 19:43:27,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 91 transitions. [2020-10-27 19:43:27,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 19:43:27,406 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:27,406 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] [2020-10-27 19:43:27,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:27,406 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:27,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:27,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1159049452, now seen corresponding path program 1 times [2020-10-27 19:43:27,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:27,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733265813] [2020-10-27 19:43:27,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:27,475 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:27,475 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:27,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:27,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:27 BoogieIcfgContainer [2020-10-27 19:43:27,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:27,512 INFO L168 Benchmark]: Toolchain (without parser) took 2864.87 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 73.2 MB in the end (delta: 55.2 MB). Peak memory consumption was 56.7 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,513 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:27,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.60 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 114.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,516 INFO L168 Benchmark]: Boogie Preprocessor took 130.58 ms. Allocated memory is still 153.1 MB. Free memory was 114.5 MB in the beginning and 112.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,517 INFO L168 Benchmark]: RCFGBuilder took 794.34 ms. Allocated memory is still 153.1 MB. Free memory was 112.2 MB in the beginning and 113.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,517 INFO L168 Benchmark]: TraceAbstraction took 1503.71 ms. Allocated memory is still 153.1 MB. Free memory was 112.9 MB in the beginning and 73.2 MB in the end (delta: 39.7 MB). Peak memory consumption was 41.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:27,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 125.8 MB. Free memory is still 100.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 423.60 ms. Allocated memory is still 153.1 MB. Free memory was 127.8 MB in the beginning and 114.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 130.58 ms. Allocated memory is still 153.1 MB. Free memory was 114.5 MB in the beginning and 112.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 794.34 ms. Allocated memory is still 153.1 MB. Free memory was 112.2 MB in the beginning and 113.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1503.71 ms. Allocated memory is still 153.1 MB. Free memory was 112.9 MB in the beginning and 73.2 MB in the end (delta: 39.7 MB). Peak memory consumption was 41.2 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 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] 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); [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1122b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 72 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: 93 SDtfs, 10 SDslu, 78 SDs, 0 SdLazy, 94 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=72occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1606 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...