/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_1052d.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 19:43:11,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 19:43:11,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 19:43:11,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 19:43:11,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 19:43:11,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 19:43:11,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 19:43:11,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 19:43:11,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 19:43:11,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 19:43:11,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 19:43:11,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 19:43:11,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 19:43:11,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 19:43:11,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 19:43:11,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 19:43:11,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 19:43:11,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 19:43:11,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 19:43:11,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 19:43:11,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 19:43:11,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 19:43:11,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 19:43:11,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 19:43:11,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 19:43:11,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 19:43:11,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 19:43:11,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 19:43:11,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 19:43:11,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 19:43:11,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 19:43:11,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 19:43:11,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 19:43:11,977 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 19:43:12,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 19:43:12,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 19:43:12,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 19:43:12,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 19:43:12,031 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 19:43:12,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 19:43:12,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 19:43:12,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 19:43:12,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 19:43:12,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 19:43:12,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 19:43:12,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 19:43:12,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 19:43:12,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 19:43:12,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 19:43:12,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 19:43:12,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 19:43:12,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 19:43:12,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 19:43:12,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 19:43:12,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 19:43:12,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 19:43:12,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 19:43:12,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 19:43:12,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 19:43:12,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 19:43:12,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 19:43:12,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 19:43:12,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 19:43:12,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 19:43:12,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 19:43:12,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 19:43:12,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 19:43:12,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 19:43:12,520 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 19:43:12,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052d.c [2020-10-27 19:43:12,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc56de060/6680e0b3e84a4fcd8caba0cf28199c46/FLAGc2f818afd [2020-10-27 19:43:13,253 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 19:43:13,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/double_req_bl_1052d.c [2020-10-27 19:43:13,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc56de060/6680e0b3e84a4fcd8caba0cf28199c46/FLAGc2f818afd [2020-10-27 19:43:13,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc56de060/6680e0b3e84a4fcd8caba0cf28199c46 [2020-10-27 19:43:13,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 19:43:13,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 19:43:13,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:13,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 19:43:13,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 19:43:13,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4b6276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13, skipping insertion in model container [2020-10-27 19:43:13,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 19:43:13,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 19:43:13,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:13,847 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 19:43:13,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 19:43:13,908 INFO L208 MainTranslator]: Completed translation [2020-10-27 19:43:13,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13 WrapperNode [2020-10-27 19:43:13,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 19:43:13,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 19:43:13,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 19:43:13,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 19:43:13,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (1/1) ... [2020-10-27 19:43:13,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 19:43:13,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 19:43:13,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 19:43:13,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 19:43:13,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (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 19:43:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 19:43:14,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 19:43:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 19:43:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2020-10-27 19:43:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2020-10-27 19:43:14,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 19:43:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 19:43:14,036 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 19:43:14,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 19:43:14,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 19:43:14,542 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 19:43:14,543 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-27 19:43:14,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:14 BoogieIcfgContainer [2020-10-27 19:43:14,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 19:43:14,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 19:43:14,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 19:43:14,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 19:43:14,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:43:13" (1/3) ... [2020-10-27 19:43:14,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fbdf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:14, skipping insertion in model container [2020-10-27 19:43:14,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:43:13" (2/3) ... [2020-10-27 19:43:14,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fbdf5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:43:14, skipping insertion in model container [2020-10-27 19:43:14,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:43:14" (3/3) ... [2020-10-27 19:43:14,556 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d.c [2020-10-27 19:43:14,571 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 19:43:14,577 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 19:43:14,594 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 19:43:14,627 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 19:43:14,627 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 19:43:14,627 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 19:43:14,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 19:43:14,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 19:43:14,628 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 19:43:14,628 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 19:43:14,628 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 19:43:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-10-27 19:43:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 19:43:14,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:14,660 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] [2020-10-27 19:43:14,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:14,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:14,668 INFO L82 PathProgramCache]: Analyzing trace with hash 387147781, now seen corresponding path program 1 times [2020-10-27 19:43:14,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:14,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451251483] [2020-10-27 19:43:14,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:14,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:14,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:14,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-27 19:43:14,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:14,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-27 19:43:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 19:43:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 19:43:15,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 19:43:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:15,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:15,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:15,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 19:43:15,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:15,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 19:43:15,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 19:43:15,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:15,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 19:43:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 19:43:15,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 19:43:15,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 19:43:15,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 19:43:15,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 19:43:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 19:43:15,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 19:43:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 19:43:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 19:43:15,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 19:43:15,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 19:43:15,258 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 19:43:15,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451251483] [2020-10-27 19:43:15,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 19:43:15,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 19:43:15,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150379383] [2020-10-27 19:43:15,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 19:43:15,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 19:43:15,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 19:43:15,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 19:43:15,286 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-10-27 19:43:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 19:43:15,536 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2020-10-27 19:43:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 19:43:15,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-27 19:43:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 19:43:15,548 INFO L225 Difference]: With dead ends: 99 [2020-10-27 19:43:15,548 INFO L226 Difference]: Without dead ends: 48 [2020-10-27 19:43:15,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 19:43:15,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-27 19:43:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-27 19:43:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-27 19:43:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2020-10-27 19:43:15,600 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 63 transitions. Word has length 20 [2020-10-27 19:43:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 19:43:15,600 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 63 transitions. [2020-10-27 19:43:15,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 19:43:15,601 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2020-10-27 19:43:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 19:43:15,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 19:43:15,602 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] [2020-10-27 19:43:15,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 19:43:15,603 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 19:43:15,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 19:43:15,604 INFO L82 PathProgramCache]: Analyzing trace with hash -496280214, now seen corresponding path program 1 times [2020-10-27 19:43:15,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 19:43:15,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [57692303] [2020-10-27 19:43:15,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 19:43:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 19:43:15,661 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 19:43:15,662 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 19:43:15,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 19:43:15,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:43:15 BoogieIcfgContainer [2020-10-27 19:43:15,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 19:43:15,696 INFO L168 Benchmark]: Toolchain (without parser) took 2076.89 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 101.7 MB in the beginning and 112.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 21.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:15,696 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 19:43:15,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.04 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 90.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:15,700 INFO L168 Benchmark]: Boogie Preprocessor took 46.34 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:15,702 INFO L168 Benchmark]: RCFGBuilder took 587.74 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.3 MB in the beginning and 127.9 MB in the end (delta: -39.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:15,703 INFO L168 Benchmark]: TraceAbstraction took 1142.95 ms. Allocated memory is still 156.2 MB. Free memory was 127.3 MB in the beginning and 112.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 8.0 GB. [2020-10-27 19:43:15,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 125.8 MB. Free memory is still 100.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 289.04 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 90.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 46.34 ms. Allocated memory is still 125.8 MB. Free memory was 90.2 MB in the beginning and 88.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 587.74 ms. Allocated memory was 125.8 MB in the beginning and 156.2 MB in the end (delta: 30.4 MB). Free memory was 88.3 MB in the beginning and 127.9 MB in the end (delta: -39.6 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1142.95 ms. Allocated memory is still 156.2 MB. Free memory was 127.3 MB in the beginning and 112.1 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.2 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 shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L100] double x = 0.0; [L101] CALL, EXPR floor_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff [L28] COND TRUE j0 < 20 [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; [L101] RET, EXPR floor_double(x) [L101] double res = floor_double(x); [L104] EXPR res == 0.0 && __signbit_double(res) == 0 [L104] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L105] CALL reach_error() [L3] __assert_fail("0", "double_req_bl_1052d.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 8 SDslu, 57 SDs, 0 SdLazy, 62 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred 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, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 1216 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...