java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:43:24,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:43:24,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:43:24,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 01:43:24,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:43:24,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:43:24,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:43:24,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:43:24,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:43:24,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:43:24,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:43:24,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:43:24,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:43:24,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:43:24,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:43:24,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 01:43:24,229 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:43:24,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:43:24,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:43:24,230 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:43:24,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:43:24,231 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:43:24,231 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:43:24,231 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:43:24,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:43:24,232 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:43:24,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:43:24,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:43:24,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:43:24,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:43:24,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:43:24,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:43:24,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:43:24,236 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:43:24,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:43:24,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:43:24,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:43:24,236 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:43:24,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:43:24,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:43:24,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:43:24,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:43:24,238 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:43:24,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:43:24,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:43:24,238 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:43:24,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:43:24,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:43:24,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:43:24,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:43:24,310 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:43:24,311 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2019-09-10 01:43:24,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7322d69/ed9e334d48e6482dacb797284f620593/FLAGe00af31f2 [2019-09-10 01:43:24,762 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:43:24,762 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1052c.c [2019-09-10 01:43:24,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7322d69/ed9e334d48e6482dacb797284f620593/FLAGe00af31f2 [2019-09-10 01:43:25,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d7322d69/ed9e334d48e6482dacb797284f620593 [2019-09-10 01:43:25,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:43:25,180 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:43:25,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:25,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:43:25,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:43:25,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bcedc3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25, skipping insertion in model container [2019-09-10 01:43:25,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,195 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:43:25,217 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:43:25,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:25,433 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:43:25,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:43:25,584 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:43:25,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25 WrapperNode [2019-09-10 01:43:25,585 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:43:25,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:43:25,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:43:25,586 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:43:25,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (1/1) ... [2019-09-10 01:43:25,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:43:25,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:43:25,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:43:25,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:43:25,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (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 [2019-09-10 01:43:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:43:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:43:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2019-09-10 01:43:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-10 01:43:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:43:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:43:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2019-09-10 01:43:25,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:43:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:43:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:43:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:43:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:43:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:43:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-10 01:43:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:43:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:43:25,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:43:26,094 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:43:26,094 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-10 01:43:26,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:26 BoogieIcfgContainer [2019-09-10 01:43:26,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:43:26,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:43:26,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:43:26,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:43:26,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:43:25" (1/3) ... [2019-09-10 01:43:26,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4689e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:26, skipping insertion in model container [2019-09-10 01:43:26,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:43:25" (2/3) ... [2019-09-10 01:43:26,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4689e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:43:26, skipping insertion in model container [2019-09-10 01:43:26,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:43:26" (3/3) ... [2019-09-10 01:43:26,101 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2019-09-10 01:43:26,110 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:43:26,118 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:43:26,134 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:43:26,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:43:26,160 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:43:26,160 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:43:26,161 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:43:26,161 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:43:26,161 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:43:26,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:43:26,161 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:43:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2019-09-10 01:43:26,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:43:26,186 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:26,187 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:43:26,189 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:26,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:26,193 INFO L82 PathProgramCache]: Analyzing trace with hash -2012883666, now seen corresponding path program 1 times [2019-09-10 01:43:26,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:26,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:26,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:26,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:26,238 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:43:26,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:26,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 01:43:26,496 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:26,501 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:43:26,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:43:26,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:43:26,517 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 7 states. [2019-09-10 01:43:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:26,726 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2019-09-10 01:43:26,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:43:26,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-09-10 01:43:26,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:26,742 INFO L225 Difference]: With dead ends: 54 [2019-09-10 01:43:26,742 INFO L226 Difference]: Without dead ends: 50 [2019-09-10 01:43:26,744 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:43:26,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-09-10 01:43:26,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-09-10 01:43:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-09-10 01:43:26,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2019-09-10 01:43:26,787 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 63 transitions. Word has length 19 [2019-09-10 01:43:26,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:26,787 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 63 transitions. [2019-09-10 01:43:26,787 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:43:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2019-09-10 01:43:26,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:43:26,790 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:26,790 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:43:26,791 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:26,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1071739113, now seen corresponding path program 1 times [2019-09-10 01:43:26,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:26,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:26,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:26,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:26,793 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:26,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:43:26,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:26,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 01:43:26,946 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:26,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 01:43:26,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 01:43:26,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:43:26,949 INFO L87 Difference]: Start difference. First operand 48 states and 63 transitions. Second operand 7 states. [2019-09-10 01:43:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:27,103 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2019-09-10 01:43:27,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:43:27,104 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-09-10 01:43:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:27,106 INFO L225 Difference]: With dead ends: 52 [2019-09-10 01:43:27,106 INFO L226 Difference]: Without dead ends: 52 [2019-09-10 01:43:27,107 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:43:27,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-09-10 01:43:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2019-09-10 01:43:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-09-10 01:43:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2019-09-10 01:43:27,132 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 63 transitions. Word has length 19 [2019-09-10 01:43:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:27,132 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 63 transitions. [2019-09-10 01:43:27,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 01:43:27,132 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2019-09-10 01:43:27,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-10 01:43:27,134 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:27,134 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:43:27,134 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:27,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:27,135 INFO L82 PathProgramCache]: Analyzing trace with hash 2079678311, now seen corresponding path program 1 times [2019-09-10 01:43:27,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:27,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:27,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:27,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:27,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:43:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:43:27,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:43:27,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 01:43:27,237 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:43:27,238 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:43:27,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:43:27,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:43:27,239 INFO L87 Difference]: Start difference. First operand 48 states and 63 transitions. Second operand 6 states. [2019-09-10 01:43:27,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:43:27,388 INFO L93 Difference]: Finished difference Result 52 states and 66 transitions. [2019-09-10 01:43:27,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 01:43:27,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-09-10 01:43:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:43:27,392 INFO L225 Difference]: With dead ends: 52 [2019-09-10 01:43:27,392 INFO L226 Difference]: Without dead ends: 48 [2019-09-10 01:43:27,392 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:43:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-09-10 01:43:27,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-09-10 01:43:27,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-09-10 01:43:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2019-09-10 01:43:27,406 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 21 [2019-09-10 01:43:27,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:43:27,407 INFO L475 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2019-09-10 01:43:27,407 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:43:27,407 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2019-09-10 01:43:27,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-10 01:43:27,410 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:43:27,410 INFO L399 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] [2019-09-10 01:43:27,410 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:43:27,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:43:27,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1884852507, now seen corresponding path program 1 times [2019-09-10 01:43:27,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:43:27,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:27,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:43:27,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:43:27,413 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:43:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 01:43:27,557 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 01:43:27,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:43:27 BoogieIcfgContainer [2019-09-10 01:43:27,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:43:27,609 INFO L168 Benchmark]: Toolchain (without parser) took 2427.96 ms. Allocated memory was 142.6 MB in the beginning and 232.3 MB in the end (delta: 89.7 MB). Free memory was 90.3 MB in the beginning and 171.5 MB in the end (delta: -81.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,611 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.71 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 178.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,614 INFO L168 Benchmark]: Boogie Preprocessor took 54.37 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 176.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,616 INFO L168 Benchmark]: RCFGBuilder took 455.06 ms. Allocated memory is still 201.9 MB. Free memory was 176.2 MB in the beginning and 153.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,617 INFO L168 Benchmark]: TraceAbstraction took 1510.31 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 153.1 MB in the beginning and 171.5 MB in the end (delta: -18.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:43:27,628 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 404.71 ms. Allocated memory was 142.6 MB in the beginning and 201.9 MB in the end (delta: 59.2 MB). Free memory was 89.9 MB in the beginning and 178.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.37 ms. Allocated memory is still 201.9 MB. Free memory was 178.4 MB in the beginning and 176.2 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.06 ms. Allocated memory is still 201.9 MB. Free memory was 176.2 MB in the beginning and 153.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1510.31 ms. Allocated memory was 201.9 MB in the beginning and 232.3 MB in the end (delta: 30.4 MB). Free memory was 153.1 MB in the beginning and 171.5 MB in the end (delta: -18.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 25. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=4294967305, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1, i1=-1, x=0] [L26] COND TRUE j0 < 20 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1, i1=-1, j0=-1, x=0] [L27] COND TRUE j0 < 0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1, i1=-1, j0=-1, x=0] [L28] COND TRUE huge_floor + x > 0.0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=1, i1=-1, j0=-1, x=0] [L29] COND TRUE i0 >= 0 [L30] EXPR i1 = 0 [L30] i0 = i1 = 0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, j0=-1, x=0] [L71] ieee_double_shape_type iw_u; [L72] iw_u.parts.msw = (i0) [L73] iw_u.parts.lsw = (i1) [L74] EXPR iw_u.value [L74] (x) = iw_u.value [L76] return x; VAL [\old(x)=0, \result=4294967302, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=0, i1=0, j0=-1, x=4294967302] [L99] RET, EXPR floor_double(x) VAL [floor_double(x)=4294967302, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=4294967302, res == -0.0 && __signbit_double(res) == 1=0, x=0] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=4294967302, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 1.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 175 SDslu, 497 SDs, 0 SdLazy, 195 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 3896 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...