/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/loop-simple/nested_1b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:08:44,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:08:44,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:08:44,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:08:44,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:08:44,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:08:44,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:08:44,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:08:44,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:08:44,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:08:44,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:08:44,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:08:44,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:08:44,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:08:44,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:08:44,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:08:44,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:08:44,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:08:44,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:08:44,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:08:44,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:08:44,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:08:44,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:08:44,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:08:44,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 17:08:44,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 17:08:44,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 17:08:44,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 17:08:44,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 17:08:44,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 17:08:44,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 17:08:44,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 17:08:44,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 17:08:44,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 17:08:44,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 17:08:44,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 17:08:44,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 17:08:44,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 17:08:44,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:08:44,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:08:44,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:08:44,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 17:08:44,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:08:44,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:08:44,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:08:44,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:08:44,587 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:08:44,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:08:44,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:08:44,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:08:44,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:08:44,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:08:44,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:08:44,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:08:44,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:08:44,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:08:44,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:08:44,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:08:44,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:08:44,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:08:44,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:08:44,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:08:44,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:08:44,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:08:44,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:08:44,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:08:44,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:08:44,592 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:08:44,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:08:45,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:08:45,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:08:45,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:08:45,008 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:08:45,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-simple/nested_1b.c [2021-01-06 17:08:45,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c2d876515/540c9deb0be143cdb71f9d5e7176168f/FLAG1a5de66e2 [2021-01-06 17:08:45,738 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:08:45,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_1b.c [2021-01-06 17:08:45,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c2d876515/540c9deb0be143cdb71f9d5e7176168f/FLAG1a5de66e2 [2021-01-06 17:08:45,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/c2d876515/540c9deb0be143cdb71f9d5e7176168f [2021-01-06 17:08:45,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:08:45,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:08:45,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:08:45,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:08:45,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:08:45,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:08:45" (1/1) ... [2021-01-06 17:08:45,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f62cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:45, skipping insertion in model container [2021-01-06 17:08:45,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:08:45" (1/1) ... [2021-01-06 17:08:45,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:08:45,812 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~a~0,] [2021-01-06 17:08:46,016 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2021-01-06 17:08:46,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:08:46,032 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~a~0,] [2021-01-06 17:08:46,048 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2021-01-06 17:08:46,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:08:46,065 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:08:46,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46 WrapperNode [2021-01-06 17:08:46,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:08:46,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:08:46,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:08:46,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:08:46,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:08:46,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:08:46,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:08:46,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:08:46,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... [2021-01-06 17:08:46,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:08:46,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:08:46,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:08:46,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:08:46,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:08:46,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:08:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:08:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:08:46,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:08:46,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:08:46,470 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-01-06 17:08:46,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:08:46 BoogieIcfgContainer [2021-01-06 17:08:46,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:08:46,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:08:46,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:08:46,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:08:46,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:08:45" (1/3) ... [2021-01-06 17:08:46,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745d8af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:08:46, skipping insertion in model container [2021-01-06 17:08:46,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:08:46" (2/3) ... [2021-01-06 17:08:46,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745d8af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:08:46, skipping insertion in model container [2021-01-06 17:08:46,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:08:46" (3/3) ... [2021-01-06 17:08:46,486 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_1b.c [2021-01-06 17:08:46,494 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:08:46,499 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 17:08:46,520 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 17:08:46,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:08:46,560 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:08:46,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:08:46,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:08:46,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:08:46,561 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:08:46,561 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:08:46,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:08:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-01-06 17:08:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-06 17:08:46,586 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:46,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-06 17:08:46,587 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:46,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:46,595 INFO L82 PathProgramCache]: Analyzing trace with hash 28696998, now seen corresponding path program 1 times [2021-01-06 17:08:46,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:46,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043417416] [2021-01-06 17:08:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:46,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043417416] [2021-01-06 17:08:46,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:08:46,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 17:08:46,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178646657] [2021-01-06 17:08:46,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 17:08:46,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:46,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 17:08:46,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 17:08:46,912 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2021-01-06 17:08:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:46,951 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2021-01-06 17:08:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 17:08:46,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-01-06 17:08:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:46,963 INFO L225 Difference]: With dead ends: 20 [2021-01-06 17:08:46,964 INFO L226 Difference]: Without dead ends: 9 [2021-01-06 17:08:46,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 17:08:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-01-06 17:08:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-01-06 17:08:47,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-01-06 17:08:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-01-06 17:08:47,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2021-01-06 17:08:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:47,033 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-01-06 17:08:47,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 17:08:47,033 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-01-06 17:08:47,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 17:08:47,033 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:47,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:08:47,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:08:47,035 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:47,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:47,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1809669604, now seen corresponding path program 1 times [2021-01-06 17:08:47,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:47,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334023417] [2021-01-06 17:08:47,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:47,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334023417] [2021-01-06 17:08:47,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649772436] [2021-01-06 17:08:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:47,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 17:08:47,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:08:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:47,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 17:08:47,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-01-06 17:08:47,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53743507] [2021-01-06 17:08:47,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 17:08:47,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:47,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 17:08:47,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:08:47,246 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2021-01-06 17:08:47,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:47,276 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-01-06 17:08:47,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 17:08:47,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-01-06 17:08:47,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:47,277 INFO L225 Difference]: With dead ends: 14 [2021-01-06 17:08:47,278 INFO L226 Difference]: Without dead ends: 11 [2021-01-06 17:08:47,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:08:47,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-01-06 17:08:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-01-06 17:08:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-01-06 17:08:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-01-06 17:08:47,282 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2021-01-06 17:08:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:47,282 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-01-06 17:08:47,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 17:08:47,282 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-01-06 17:08:47,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 17:08:47,283 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:47,283 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-01-06 17:08:47,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 17:08:47,498 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:47,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:47,499 INFO L82 PathProgramCache]: Analyzing trace with hash -367607134, now seen corresponding path program 2 times [2021-01-06 17:08:47,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:47,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358113481] [2021-01-06 17:08:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:47,557 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:47,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358113481] [2021-01-06 17:08:47,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516762286] [2021-01-06 17:08:47,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:47,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 17:08:47,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:08:47,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-01-06 17:08:47,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:08:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:47,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 17:08:47,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-01-06 17:08:47,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228700273] [2021-01-06 17:08:47,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 17:08:47,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:47,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 17:08:47,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 17:08:47,658 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2021-01-06 17:08:47,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:47,689 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-01-06 17:08:47,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:08:47,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2021-01-06 17:08:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:47,691 INFO L225 Difference]: With dead ends: 16 [2021-01-06 17:08:47,691 INFO L226 Difference]: Without dead ends: 13 [2021-01-06 17:08:47,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-01-06 17:08:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-01-06 17:08:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-01-06 17:08:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-01-06 17:08:47,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-01-06 17:08:47,695 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2021-01-06 17:08:47,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:47,696 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-01-06 17:08:47,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 17:08:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-01-06 17:08:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-01-06 17:08:47,697 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:47,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2021-01-06 17:08:47,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:47,912 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:47,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:47,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1081479200, now seen corresponding path program 3 times [2021-01-06 17:08:47,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:47,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124197723] [2021-01-06 17:08:47,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:47,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124197723] [2021-01-06 17:08:47,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756403604] [2021-01-06 17:08:47,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:48,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-01-06 17:08:48,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:08:48,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 17:08:48,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:08:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:48,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 17:08:48,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-01-06 17:08:48,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792754098] [2021-01-06 17:08:48,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 17:08:48,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:48,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 17:08:48,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:08:48,081 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 7 states. [2021-01-06 17:08:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:48,119 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-01-06 17:08:48,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 17:08:48,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2021-01-06 17:08:48,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:48,121 INFO L225 Difference]: With dead ends: 18 [2021-01-06 17:08:48,121 INFO L226 Difference]: Without dead ends: 15 [2021-01-06 17:08:48,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-06 17:08:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-01-06 17:08:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-01-06 17:08:48,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-01-06 17:08:48,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-01-06 17:08:48,126 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-01-06 17:08:48,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:48,126 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-01-06 17:08:48,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 17:08:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-01-06 17:08:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:08:48,127 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:48,127 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1] [2021-01-06 17:08:48,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:48,343 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:48,343 INFO L82 PathProgramCache]: Analyzing trace with hash 82232734, now seen corresponding path program 4 times [2021-01-06 17:08:48,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:48,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300175353] [2021-01-06 17:08:48,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:48,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300175353] [2021-01-06 17:08:48,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203356174] [2021-01-06 17:08:48,423 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:48,467 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-01-06 17:08:48,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:08:48,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-01-06 17:08:48,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:08:48,520 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:48,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 17:08:48,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-01-06 17:08:48,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094542166] [2021-01-06 17:08:48,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-06 17:08:48,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:48,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-06 17:08:48,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:08:48,523 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 8 states. [2021-01-06 17:08:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:48,564 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-01-06 17:08:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 17:08:48,565 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2021-01-06 17:08:48,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:48,566 INFO L225 Difference]: With dead ends: 20 [2021-01-06 17:08:48,566 INFO L226 Difference]: Without dead ends: 17 [2021-01-06 17:08:48,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-01-06 17:08:48,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-01-06 17:08:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-01-06 17:08:48,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-01-06 17:08:48,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-01-06 17:08:48,571 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-01-06 17:08:48,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:48,571 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-01-06 17:08:48,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-01-06 17:08:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-01-06 17:08:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 17:08:48,572 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:48,572 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1] [2021-01-06 17:08:48,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:48,786 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:48,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:48,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1717904348, now seen corresponding path program 5 times [2021-01-06 17:08:48,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:48,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313316858] [2021-01-06 17:08:48,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:08:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:48,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313316858] [2021-01-06 17:08:48,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35937890] [2021-01-06 17:08:48,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:08:48,967 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-01-06 17:08:48,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 17:08:48,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 17:08:48,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:08:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:08:49,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-06 17:08:49,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-01-06 17:08:49,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122660006] [2021-01-06 17:08:49,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-01-06 17:08:49,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:08:49,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-01-06 17:08:49,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:08:49,029 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2021-01-06 17:08:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:08:49,102 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-01-06 17:08:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 17:08:49,103 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2021-01-06 17:08:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:08:49,104 INFO L225 Difference]: With dead ends: 21 [2021-01-06 17:08:49,104 INFO L226 Difference]: Without dead ends: 18 [2021-01-06 17:08:49,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-01-06 17:08:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-01-06 17:08:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-01-06 17:08:49,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-01-06 17:08:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-01-06 17:08:49,115 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-01-06 17:08:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:08:49,115 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-01-06 17:08:49,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-01-06 17:08:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-01-06 17:08:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-01-06 17:08:49,117 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:08:49,117 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1] [2021-01-06 17:08:49,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-01-06 17:08:49,333 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:08:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:08:49,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1640295066, now seen corresponding path program 6 times [2021-01-06 17:08:49,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:08:49,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580373379] [2021-01-06 17:08:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:08:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 17:08:49,351 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 17:08:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 17:08:49,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 17:08:49,382 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 17:08:49,382 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 17:08:49,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 17:08:49,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:08:49 BoogieIcfgContainer [2021-01-06 17:08:49,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:08:49,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:08:49,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:08:49,414 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:08:49,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:08:46" (3/4) ... [2021-01-06 17:08:49,417 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 17:08:49,465 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-simple/nested_1b.c-witness.graphml [2021-01-06 17:08:49,465 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:08:49,467 INFO L168 Benchmark]: Toolchain (without parser) took 3688.87 ms. Allocated memory was 177.2 MB in the beginning and 230.7 MB in the end (delta: 53.5 MB). Free memory was 152.7 MB in the beginning and 203.4 MB in the end (delta: -50.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,468 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 177.2 MB. Free memory is still 148.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:08:49,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.58 ms. Allocated memory is still 177.2 MB. Free memory was 152.5 MB in the beginning and 143.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.32 ms. Allocated memory is still 177.2 MB. Free memory was 143.3 MB in the beginning and 142.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,470 INFO L168 Benchmark]: Boogie Preprocessor took 21.65 ms. Allocated memory is still 177.2 MB. Free memory was 142.0 MB in the beginning and 141.1 MB in the end (delta: 961.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,471 INFO L168 Benchmark]: RCFGBuilder took 347.08 ms. Allocated memory is still 177.2 MB. Free memory was 141.0 MB in the beginning and 130.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,472 INFO L168 Benchmark]: TraceAbstraction took 2937.52 ms. Allocated memory was 177.2 MB in the beginning and 230.7 MB in the end (delta: 53.5 MB). Free memory was 130.0 MB in the beginning and 205.5 MB in the end (delta: -75.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:08:49,473 INFO L168 Benchmark]: Witness Printer took 52.14 ms. Allocated memory is still 230.7 MB. Free memory was 205.5 MB in the beginning and 203.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:08:49,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 177.2 MB. Free memory is still 148.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 286.58 ms. Allocated memory is still 177.2 MB. Free memory was 152.5 MB in the beginning and 143.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.32 ms. Allocated memory is still 177.2 MB. Free memory was 143.3 MB in the beginning and 142.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.65 ms. Allocated memory is still 177.2 MB. Free memory was 142.0 MB in the beginning and 141.1 MB in the end (delta: 961.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 347.08 ms. Allocated memory is still 177.2 MB. Free memory was 141.0 MB in the beginning and 130.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2937.52 ms. Allocated memory was 177.2 MB in the beginning and 230.7 MB in the end (delta: 53.5 MB). Free memory was 130.0 MB in the beginning and 205.5 MB in the end (delta: -75.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 52.14 ms. Allocated memory is still 230.7 MB. Free memory was 205.5 MB in the beginning and 203.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int a = 6; [L19] a = 0 [L19] COND TRUE a < 6 [L19] ++a [L19] COND TRUE a < 6 [L19] ++a [L19] COND TRUE a < 6 [L19] ++a [L19] COND TRUE a < 6 [L19] ++a [L19] COND TRUE a < 6 [L19] ++a [L19] COND TRUE a < 6 [L19] ++a [L19] COND FALSE !(a < 6) [L22] COND TRUE a == 6 [L23] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 21 SDslu, 45 SDs, 0 SdLazy, 98 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=6, 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 2664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 0/110 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 proved your program to be incorrect! Received shutdown request...