/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:43:20,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:43:20,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:43:20,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:43:20,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:43:20,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:43:20,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:43:20,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:43:20,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:43:20,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:43:20,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:43:20,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:43:20,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:43:20,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:43:20,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:43:20,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:43:20,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:43:20,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:43:20,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:43:20,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:43:20,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:43:20,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:43:20,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:43:20,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:43:20,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 11:43:20,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:43:20,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:43:20,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:43:20,579 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:43:20,593 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:43:20,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:43:20,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:43:20,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:43:20,595 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:43:20,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:43:20,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:43:20,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:43:20,597 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:43:20,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:43:20,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:43:20,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:43:20,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:43:20,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:43:20,598 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:43:20,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:43:20,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:43:20,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:43:20,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:43:20,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:43:20,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:43:20,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:43:20,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:43:20,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:43:20,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:43:20,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:43:20,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:43:20,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:43:20,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:43:20,886 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:43:20,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-17 11:43:20,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8876946ed/eb42b2ccf0b14e5fb11bf7eb1edc4d1a/FLAGaeb5c03ed [2020-07-17 11:43:21,418 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:43:21,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1230.c [2020-07-17 11:43:21,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8876946ed/eb42b2ccf0b14e5fb11bf7eb1edc4d1a/FLAGaeb5c03ed [2020-07-17 11:43:21,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8876946ed/eb42b2ccf0b14e5fb11bf7eb1edc4d1a [2020-07-17 11:43:21,817 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:43:21,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:43:21,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:21,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:43:21,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:43:21,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221ba80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:21, skipping insertion in model container [2020-07-17 11:43:21,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:43:21" (1/1) ... [2020-07-17 11:43:21,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:43:21,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:43:22,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:22,075 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:43:22,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:43:22,129 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:43:22,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22 WrapperNode [2020-07-17 11:43:22,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:43:22,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:43:22,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:43:22,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:43:22,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (1/1) ... [2020-07-17 11:43:22,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:43:22,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:43:22,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:43:22,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:43:22,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (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 [2020-07-17 11:43:22,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2020-07-17 11:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2020-07-17 11:43:22,332 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_double [2020-07-17 11:43:22,333 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:43:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:43:22,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2020-07-17 11:43:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2020-07-17 11:43:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2020-07-17 11:43:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:43:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 11:43:22,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:43:22,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:43:22,336 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_double [2020-07-17 11:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 11:43:22,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:43:22,656 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:43:22,657 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 11:43:22,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:22 BoogieIcfgContainer [2020-07-17 11:43:22,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:43:22,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:43:22,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:43:22,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:43:22,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:43:21" (1/3) ... [2020-07-17 11:43:22,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b837996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:22, skipping insertion in model container [2020-07-17 11:43:22,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:43:22" (2/3) ... [2020-07-17 11:43:22,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b837996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:43:22, skipping insertion in model container [2020-07-17 11:43:22,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:43:22" (3/3) ... [2020-07-17 11:43:22,670 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1230.c [2020-07-17 11:43:22,682 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:43:22,690 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:43:22,723 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:43:22,756 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:43:22,756 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:43:22,756 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:43:22,756 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:43:22,757 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:43:22,757 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:43:22,757 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:43:22,757 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:43:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-17 11:43:22,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 11:43:22,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:22,785 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:43:22,785 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:22,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:22,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1251720270, now seen corresponding path program 1 times [2020-07-17 11:43:22,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:22,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107670475] [2020-07-17 11:43:22,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:22,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:43:23,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107670475] [2020-07-17 11:43:23,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:43:23,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:43:23,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533553339] [2020-07-17 11:43:23,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:43:23,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:43:23,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:43:23,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:43:23,088 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 4 states. [2020-07-17 11:43:23,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:43:23,332 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2020-07-17 11:43:23,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 11:43:23,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-07-17 11:43:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:43:23,346 INFO L225 Difference]: With dead ends: 71 [2020-07-17 11:43:23,346 INFO L226 Difference]: Without dead ends: 36 [2020-07-17 11:43:23,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:43:23,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-17 11:43:23,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-17 11:43:23,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-17 11:43:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2020-07-17 11:43:23,444 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2020-07-17 11:43:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:43:23,445 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2020-07-17 11:43:23,445 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:43:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2020-07-17 11:43:23,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 11:43:23,450 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:23,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:43:23,451 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:43:23,451 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:23,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:23,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1491407075, now seen corresponding path program 1 times [2020-07-17 11:43:23,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:23,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376000320] [2020-07-17 11:43:23,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:23,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:43:23,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376000320] [2020-07-17 11:43:23,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:43:23,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:43:23,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629316388] [2020-07-17 11:43:23,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:43:23,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:43:23,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:43:23,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:43:23,795 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 6 states. [2020-07-17 11:43:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:43:24,081 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2020-07-17 11:43:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:43:24,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-17 11:43:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:43:24,086 INFO L225 Difference]: With dead ends: 51 [2020-07-17 11:43:24,086 INFO L226 Difference]: Without dead ends: 40 [2020-07-17 11:43:24,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:43:24,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-07-17 11:43:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-07-17 11:43:24,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-17 11:43:24,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-17 11:43:24,099 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2020-07-17 11:43:24,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:43:24,100 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-17 11:43:24,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:43:24,100 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-17 11:43:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 11:43:24,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:24,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:43:24,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:43:24,102 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:24,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:24,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1711130393, now seen corresponding path program 1 times [2020-07-17 11:43:24,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:24,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544488259] [2020-07-17 11:43:24,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:24,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:43:24,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:43:24,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544488259] [2020-07-17 11:43:24,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:43:24,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:43:24,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973665466] [2020-07-17 11:43:24,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:43:24,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:43:24,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:43:24,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:43:24,282 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 6 states. [2020-07-17 11:43:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:43:24,479 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2020-07-17 11:43:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:43:24,480 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-17 11:43:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:43:24,482 INFO L225 Difference]: With dead ends: 55 [2020-07-17 11:43:24,482 INFO L226 Difference]: Without dead ends: 44 [2020-07-17 11:43:24,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-17 11:43:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-17 11:43:24,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-07-17 11:43:24,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-07-17 11:43:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2020-07-17 11:43:24,492 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2020-07-17 11:43:24,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:43:24,492 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2020-07-17 11:43:24,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:43:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2020-07-17 11:43:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 11:43:24,494 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:43:24,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:43:24,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:43:24,495 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:43:24,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:43:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1076285094, now seen corresponding path program 1 times [2020-07-17 11:43:24,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:43:24,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265797917] [2020-07-17 11:43:24,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:43:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:43:24,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:43:24,666 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:43:24,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:43:24,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:43:24 BoogieIcfgContainer [2020-07-17 11:43:24,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:43:24,704 INFO L168 Benchmark]: Toolchain (without parser) took 2884.69 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 103.3 MB in the beginning and 130.6 MB in the end (delta: -27.3 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,705 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.56 ms. Allocated memory is still 145.2 MB. Free memory was 102.8 MB in the beginning and 92.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,708 INFO L168 Benchmark]: Boogie Preprocessor took 131.81 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.1 MB in the beginning and 180.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,709 INFO L168 Benchmark]: RCFGBuilder took 398.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 160.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,710 INFO L168 Benchmark]: TraceAbstraction took 2038.41 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 160.2 MB in the beginning and 130.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:43:24,714 INFO L336 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 145.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.56 ms. Allocated memory is still 145.2 MB. Free memory was 102.8 MB in the beginning and 92.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.81 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 92.1 MB in the beginning and 180.0 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 398.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 160.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2038.41 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 160.2 MB in the beginning and 130.6 MB in the end (delta: 29.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 61. Possible FailurePath: [L61] double x = 0.0 / 0.0; [L62] double y = 0.0 / 0.0; [L63] CALL, EXPR fmin_double(x, y) VAL [\old(x)=4293918726, \old(y)=4293918727] [L45] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=4293918726] [L18] __uint32_t msw, lsw; VAL [\old(x)=4293918726, x=4293918726] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L27-L28] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) VAL [\old(x)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L30-L31] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) VAL [\old(x)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L33-L34] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) VAL [\old(x)=4293918726, lsw=1, msw=4293918721, x=4293918726] [L37-L38] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L41] return 0; VAL [\old(x)=4293918726, \result=0, lsw=1, msw=4293918721, x=4293918726] [L45] RET, EXPR __fpclassify_double(x) VAL [\old(x)=4293918726, \old(y)=4293918727, __fpclassify_double(x)=0, x=4293918726, y=4293918727] [L45] COND TRUE __fpclassify_double(x) == 0 [L46] return y; VAL [\old(x)=4293918726, \old(y)=4293918727, \result=4293918727, x=4293918726, y=4293918727] [L63] RET, EXPR fmin_double(x, y) VAL [fmin_double(x, y)=4293918727, x=4293918726, y=4293918727] [L63] double res = fmin_double(x, y); [L65] CALL, EXPR isnan_double(res) VAL [\old(x)=4293918727] [L16] return x != x; VAL [\old(x)=4293918727, \result=0, x=4293918727] [L65] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=4293918727, x=4293918726, y=4293918727] [L65] COND TRUE !isnan_double(res) [L66] __VERIFIER_error() VAL [res=4293918727, x=4293918726, y=4293918727] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 108 SDslu, 43 SDs, 0 SdLazy, 255 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 5222 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...