/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:46:18,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:46:18,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:46:18,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 03:46:18,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 03:46:18,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 03:46:18,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 03:46:18,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 03:46:18,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 03:46:18,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 03:46:18,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 03:46:18,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 03:46:18,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 03:46:18,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 03:46:18,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 03:46:18,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 03:46:18,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 03:46:18,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:46:18,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:46:18,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:46:18,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:46:18,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:46:18,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:46:18,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:46:18,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:46:18,972 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:46:18,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:46:18,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:46:18,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:46:18,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:46:18,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:46:18,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:46:18,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:46:18,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:46:18,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:46:18,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:46:18,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:46:18,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:46:18,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:46:18,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:46:18,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:46:18,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:46:18,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:46:18,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:46:18,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:46:18,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:46:18,979 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:46:19,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:46:19,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:46:19,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:46:19,452 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:46:19,453 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:46:19,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-12-22 03:46:19,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa47ef803/6de1ec2cbdca4d77af4d9815524f017e/FLAG79ea4e432 [2020-12-22 03:46:20,263 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:46:20,263 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2020-12-22 03:46:20,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa47ef803/6de1ec2cbdca4d77af4d9815524f017e/FLAG79ea4e432 [2020-12-22 03:46:20,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa47ef803/6de1ec2cbdca4d77af4d9815524f017e [2020-12-22 03:46:20,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:46:20,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:46:20,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:46:20,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:46:20,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:46:20,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:46:20" (1/1) ... [2020-12-22 03:46:20,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71943c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:20, skipping insertion in model container [2020-12-22 03:46:20,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:46:20" (1/1) ... [2020-12-22 03:46:20,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:46:20,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:46:21,021 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2020-12-22 03:46:21,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:46:21,047 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:46:21,123 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2020-12-22 03:46:21,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:46:21,144 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:46:21,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21 WrapperNode [2020-12-22 03:46:21,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:46:21,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:46:21,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:46:21,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:46:21,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:46:21,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:46:21,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:46:21,241 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:46:21,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2020-12-22 03:46:21,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:46:21,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:46:21,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:46:21,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:46:21,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-22 03:46:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:46:21,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:46:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 03:46:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-22 03:46:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-22 03:46:21,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:46:21,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:46:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 03:46:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-22 03:46:21,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 03:46:22,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:46:22,104 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-22 03:46:22,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:22 BoogieIcfgContainer [2020-12-22 03:46:22,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:46:22,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:46:22,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:46:22,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:46:22,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:46:20" (1/3) ... [2020-12-22 03:46:22,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6355ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:22, skipping insertion in model container [2020-12-22 03:46:22,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (2/3) ... [2020-12-22 03:46:22,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6355ec76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:22, skipping insertion in model container [2020-12-22 03:46:22,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:22" (3/3) ... [2020-12-22 03:46:22,119 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2020-12-22 03:46:22,126 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:46:22,134 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:46:22,153 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:46:22,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:46:22,183 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:46:22,183 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:46:22,183 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:46:22,183 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:46:22,184 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:46:22,184 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:46:22,184 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:46:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-12-22 03:46:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 03:46:22,233 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:46:22,234 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:46:22,234 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:46:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:46:22,240 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2020-12-22 03:46:22,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:46:22,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883500284] [2020-12-22 03:46:22,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:46:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:46:22,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:46:22,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883500284] [2020-12-22 03:46:22,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:46:22,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 03:46:22,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334036175] [2020-12-22 03:46:22,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 03:46:22,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:46:22,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 03:46:22,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:46:22,417 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-12-22 03:46:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:46:22,443 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2020-12-22 03:46:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 03:46:22,445 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-22 03:46:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:46:22,456 INFO L225 Difference]: With dead ends: 119 [2020-12-22 03:46:22,456 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 03:46:22,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 03:46:22,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 03:46:22,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-22 03:46:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 03:46:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2020-12-22 03:46:22,503 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2020-12-22 03:46:22,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:46:22,504 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2020-12-22 03:46:22,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 03:46:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2020-12-22 03:46:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-22 03:46:22,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:46:22,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 03:46:22,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:46:22,506 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:46:22,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:46:22,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2020-12-22 03:46:22,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:46:22,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540622171] [2020-12-22 03:46:22,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:46:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:46:22,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:46:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 03:46:22,651 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 03:46:22,710 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 03:46:22,711 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 03:46:22,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 03:46:22,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:46:22 BoogieIcfgContainer [2020-12-22 03:46:22,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:46:22,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:46:22,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:46:22,777 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:46:22,777 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:22" (3/4) ... [2020-12-22 03:46:22,782 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 03:46:22,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:46:22,785 INFO L168 Benchmark]: Toolchain (without parser) took 2187.89 ms. Allocated memory is still 163.6 MB. Free memory was 137.3 MB in the beginning and 121.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 8.0 GB. [2020-12-22 03:46:22,786 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:46:22,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.65 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 124.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-22 03:46:22,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.89 ms. Allocated memory is still 163.6 MB. Free memory was 123.7 MB in the beginning and 121.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:46:22,788 INFO L168 Benchmark]: Boogie Preprocessor took 79.98 ms. Allocated memory is still 163.6 MB. Free memory was 121.3 MB in the beginning and 119.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:46:22,789 INFO L168 Benchmark]: RCFGBuilder took 786.82 ms. Allocated memory is still 163.6 MB. Free memory was 119.2 MB in the beginning and 87.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-12-22 03:46:22,790 INFO L168 Benchmark]: TraceAbstraction took 664.32 ms. Allocated memory is still 163.6 MB. Free memory was 86.7 MB in the beginning and 121.2 MB in the end (delta: -34.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:46:22,791 INFO L168 Benchmark]: Witness Printer took 5.73 ms. Allocated memory is still 163.6 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:46:22,795 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 163.6 MB. Free memory was 136.6 MB in the beginning and 136.5 MB in the end (delta: 102.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 544.65 ms. Allocated memory is still 163.6 MB. Free memory was 137.0 MB in the beginning and 124.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.89 ms. Allocated memory is still 163.6 MB. Free memory was 123.7 MB in the beginning and 121.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 79.98 ms. Allocated memory is still 163.6 MB. Free memory was 121.3 MB in the beginning and 119.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 786.82 ms. Allocated memory is still 163.6 MB. Free memory was 119.2 MB in the beginning and 87.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 664.32 ms. Allocated memory is still 163.6 MB. Free memory was 86.7 MB in the beginning and 121.2 MB in the end (delta: -34.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 5.73 ms. Allocated memory is still 163.6 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 193]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [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 VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, Zero_fmod={9:0}] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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...