java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -s config/svcomp-Reach-32bit-Automizer_Default.epf --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i /storage/repos/svcomp/c/array-crafted/bAnd5_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:27:42,251 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:27:42,252 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:27:42,267 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:27:42,267 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:27:42,269 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:27:42,271 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:27:42,273 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:27:42,277 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:27:42,278 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:27:42,279 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:27:42,279 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:27:42,280 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:27:42,281 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:27:42,282 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:27:42,283 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:27:42,284 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:27:42,286 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:27:42,288 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:27:42,289 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:27:42,290 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:27:42,292 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:27:42,294 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:27:42,294 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:27:42,294 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:27:42,295 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:27:42,296 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:27:42,297 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:27:42,297 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:27:42,298 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:27:42,299 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:27:42,302 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:27:42,304 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:27:42,304 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:27:42,305 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:27:42,305 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:27:42,305 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:27:42,308 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:27:42,310 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:27:42,310 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:27:42,327 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:27:42,327 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:27:42,328 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:27:42,328 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:27:42,329 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:27:42,331 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:27:42,331 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:27:42,331 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:27:42,332 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:27:42,332 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:27:42,332 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:27:42,332 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:27:42,332 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:27:42,333 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:27:42,333 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:27:42,333 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:27:42,333 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:27:42,333 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:27:42,334 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:27:42,334 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:27:42,334 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:27:42,334 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:27:42,334 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:27:42,335 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:27:42,335 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:27:42,335 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:27:42,335 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:27:42,335 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:27:42,338 INFO L146 ILogger]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 11:27:42,399 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:27:42,416 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:27:42,422 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:27:42,424 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:27:42,424 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:27:42,425 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-crafted/bAnd5_true-unreach-call.i [2019-05-23 11:27:42,492 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a061d2ff/0538a1dd69ce41e7a743061ef6112e82/FLAG967fb4d2c [2019-05-23 11:27:42,875 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:27:42,876 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-crafted/bAnd5_true-unreach-call.i [2019-05-23 11:27:42,884 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a061d2ff/0538a1dd69ce41e7a743061ef6112e82/FLAG967fb4d2c [2019-05-23 11:27:43,242 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a061d2ff/0538a1dd69ce41e7a743061ef6112e82 [2019-05-23 11:27:43,250 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:27:43,252 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:27:43,253 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:43,253 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:27:43,257 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:27:43,258 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,261 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24d33280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43, skipping insertion in model container [2019-05-23 11:27:43,262 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,270 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:27:43,291 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:27:43,535 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:43,546 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:27:43,576 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:43,592 INFO L146 ILogger]: Completed translation [2019-05-23 11:27:43,593 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43 WrapperNode [2019-05-23 11:27:43,593 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:43,594 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:43,594 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:27:43,594 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:27:43,603 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,613 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,648 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:43,650 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:27:43,651 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:27:43,651 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:27:43,750 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,750 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,760 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,760 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,771 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,776 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,778 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (1/1) ... [2019-05-23 11:27:43,780 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:27:43,781 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:27:43,781 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:27:43,781 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:27:43,782 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (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:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 11:27:43,841 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:27:43,841 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:27:43,841 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:27:43,841 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:27:43,842 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:27:43,842 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:27:44,481 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:27:44,481 INFO L146 ILogger]: Removed 14 assume(true) statements. [2019-05-23 11:27:44,483 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:44 BoogieIcfgContainer [2019-05-23 11:27:44,483 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:27:44,484 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:27:44,484 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:27:44,487 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:27:44,487 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:27:43" (1/3) ... [2019-05-23 11:27:44,488 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7000c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:44, skipping insertion in model container [2019-05-23 11:27:44,488 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:43" (2/3) ... [2019-05-23 11:27:44,488 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f7000c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:44, skipping insertion in model container [2019-05-23 11:27:44,488 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:44" (3/3) ... [2019-05-23 11:27:44,490 INFO L146 ILogger]: Analyzing ICFG bAnd5_true-unreach-call.i [2019-05-23 11:27:44,499 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:27:44,505 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:27:44,520 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:27:44,552 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:27:44,553 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:27:44,553 INFO L146 ILogger]: Hoare is true [2019-05-23 11:27:44,553 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:27:44,554 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:27:44,554 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:27:44,554 INFO L146 ILogger]: Difference is false [2019-05-23 11:27:44,554 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:27:44,555 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:27:44,572 INFO L146 ILogger]: Start isEmpty. Operand 108 states. [2019-05-23 11:27:44,581 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 78 [2019-05-23 11:27:44,581 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:44,582 INFO L146 ILogger]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:44,585 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:44,590 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:44,590 INFO L146 ILogger]: Analyzing trace with hash -688569893, now seen corresponding path program 1 times [2019-05-23 11:27:44,592 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:44,592 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:44,631 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:44,631 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:44,631 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:44,695 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:44,767 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:44,770 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:44,771 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:27:44,776 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:27:44,789 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:27:44,791 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:27:44,793 INFO L146 ILogger]: Start difference. First operand 108 states. Second operand 2 states. [2019-05-23 11:27:44,819 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:44,819 INFO L146 ILogger]: Finished difference Result 185 states and 200 transitions. [2019-05-23 11:27:44,820 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:27:44,821 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 77 [2019-05-23 11:27:44,822 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:44,835 INFO L146 ILogger]: With dead ends: 185 [2019-05-23 11:27:44,835 INFO L146 ILogger]: Without dead ends: 102 [2019-05-23 11:27:44,840 INFO L146 ILogger]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:27:44,857 INFO L146 ILogger]: Start minimizeSevpa. Operand 102 states. [2019-05-23 11:27:44,879 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-05-23 11:27:44,880 INFO L146 ILogger]: Start removeUnreachable. Operand 102 states. [2019-05-23 11:27:44,883 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2019-05-23 11:27:44,884 INFO L146 ILogger]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 77 [2019-05-23 11:27:44,885 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:44,885 INFO L146 ILogger]: Abstraction has 102 states and 105 transitions. [2019-05-23 11:27:44,885 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:27:44,886 INFO L146 ILogger]: Start isEmpty. Operand 102 states and 105 transitions. [2019-05-23 11:27:44,888 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 78 [2019-05-23 11:27:44,889 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:44,889 INFO L146 ILogger]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:44,889 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:44,890 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:44,890 INFO L146 ILogger]: Analyzing trace with hash -610948111, now seen corresponding path program 1 times [2019-05-23 11:27:44,890 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:44,890 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:44,892 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:44,892 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:44,892 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:44,979 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:45,203 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 11:27:45,203 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:45,203 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:27:45,208 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:27:45,208 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:27:45,208 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:45,209 INFO L146 ILogger]: Start difference. First operand 102 states and 105 transitions. Second operand 4 states. [2019-05-23 11:27:45,464 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:45,464 INFO L146 ILogger]: Finished difference Result 191 states and 199 transitions. [2019-05-23 11:27:45,465 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:27:45,465 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 77 [2019-05-23 11:27:45,465 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:45,467 INFO L146 ILogger]: With dead ends: 191 [2019-05-23 11:27:45,467 INFO L146 ILogger]: Without dead ends: 120 [2019-05-23 11:27:45,469 INFO L146 ILogger]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:45,469 INFO L146 ILogger]: Start minimizeSevpa. Operand 120 states. [2019-05-23 11:27:45,478 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 120 to 105. [2019-05-23 11:27:45,479 INFO L146 ILogger]: Start removeUnreachable. Operand 105 states. [2019-05-23 11:27:45,480 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2019-05-23 11:27:45,480 INFO L146 ILogger]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 77 [2019-05-23 11:27:45,481 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:45,481 INFO L146 ILogger]: Abstraction has 105 states and 108 transitions. [2019-05-23 11:27:45,481 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:27:45,481 INFO L146 ILogger]: Start isEmpty. Operand 105 states and 108 transitions. [2019-05-23 11:27:45,483 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:27:45,483 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:45,484 INFO L146 ILogger]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:45,484 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:45,484 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:45,485 INFO L146 ILogger]: Analyzing trace with hash 1965114810, now seen corresponding path program 1 times [2019-05-23 11:27:45,485 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:45,485 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:45,486 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,486 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:45,487 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,520 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:45,689 INFO L146 ILogger]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-05-23 11:27:45,689 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:45,689 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:27:45,690 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:27:45,690 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:27:45,691 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:45,691 INFO L146 ILogger]: Start difference. First operand 105 states and 108 transitions. Second operand 4 states. [2019-05-23 11:27:45,883 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:45,883 INFO L146 ILogger]: Finished difference Result 138 states and 142 transitions. [2019-05-23 11:27:45,885 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:27:45,885 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 98 [2019-05-23 11:27:45,886 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:45,887 INFO L146 ILogger]: With dead ends: 138 [2019-05-23 11:27:45,887 INFO L146 ILogger]: Without dead ends: 111 [2019-05-23 11:27:45,888 INFO L146 ILogger]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:45,888 INFO L146 ILogger]: Start minimizeSevpa. Operand 111 states. [2019-05-23 11:27:45,895 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 111 to 106. [2019-05-23 11:27:45,896 INFO L146 ILogger]: Start removeUnreachable. Operand 106 states. [2019-05-23 11:27:45,897 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 106 states to 106 states and 109 transitions. [2019-05-23 11:27:45,897 INFO L146 ILogger]: Start accepts. Automaton has 106 states and 109 transitions. Word has length 98 [2019-05-23 11:27:45,897 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:45,897 INFO L146 ILogger]: Abstraction has 106 states and 109 transitions. [2019-05-23 11:27:45,898 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:27:45,898 INFO L146 ILogger]: Start isEmpty. Operand 106 states and 109 transitions. [2019-05-23 11:27:45,899 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 106 [2019-05-23 11:27:45,899 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:45,900 INFO L146 ILogger]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 11:27:45,900 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:45,900 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:45,900 INFO L146 ILogger]: Analyzing trace with hash -1270746457, now seen corresponding path program 1 times [2019-05-23 11:27:45,901 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:45,901 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:45,902 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,902 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:45,902 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:45,943 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:27:46,035 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:27:46,100 INFO L146 ILogger]: Counterexample might be feasible [2019-05-23 11:27:46,190 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 11:27:46 BoogieIcfgContainer [2019-05-23 11:27:46,190 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 11:27:46,192 INFO L146 ILogger]: Toolchain (without parser) took 2939.49 ms. Allocated memory was 142.1 MB in the beginning and 232.8 MB in the end (delta: 90.7 MB). Free memory was 89.7 MB in the beginning and 178.4 MB in the end (delta: -88.7 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,194 INFO L146 ILogger]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,195 INFO L146 ILogger]: CACSL2BoogieTranslator took 340.19 ms. Allocated memory is still 142.1 MB. Free memory was 89.5 MB in the beginning and 79.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,195 INFO L146 ILogger]: Boogie Procedure Inliner took 56.31 ms. Allocated memory is still 142.1 MB. Free memory was 79.2 MB in the beginning and 77.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,196 INFO L146 ILogger]: Boogie Preprocessor took 130.09 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 77.2 MB in the beginning and 180.0 MB in the end (delta: -102.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,197 INFO L146 ILogger]: RCFGBuilder took 702.24 ms. Allocated memory is still 202.9 MB. Free memory was 180.0 MB in the beginning and 156.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,198 INFO L146 ILogger]: TraceAbstraction took 1706.21 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 156.4 MB in the beginning and 178.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:46,203 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.19 ms. Allocated memory is still 142.1 MB. Free memory was 89.5 MB in the beginning and 79.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.31 ms. Allocated memory is still 142.1 MB. Free memory was 79.2 MB in the beginning and 77.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.09 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 77.2 MB in the beginning and 180.0 MB in the end (delta: -102.9 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.24 ms. Allocated memory is still 202.9 MB. Free memory was 180.0 MB in the beginning and 156.9 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1706.21 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 156.4 MB in the beginning and 178.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 41]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 14. Possible FailurePath: [L6] int N; VAL [N=0] [L21] N = __VERIFIER_nondet_int() VAL [N=2] [L22] COND TRUE N > 1 VAL [N=2] [L23] int x[N]; VAL [N=2] [L24] int temp; VAL [N=2] [L25] int ret; VAL [N=2] [L26] int ret2; VAL [N=2] [L27] int ret5; VAL [N=2] [L10] int i; VAL [N=2] [L11] long long res; VAL [N=2] [L12] EXPR x[0] VAL [N=2] [L12] res = x[0] VAL [N=2] [L13] i = 1 VAL [N=2] [L13] COND TRUE i < N VAL [N=2] [L14] EXPR x[i] VAL [N=2] [L14] res = res & x[i] VAL [N=2] [L13] i++ VAL [N=2] [L13] COND FALSE !(i < N) VAL [N=2] [L16] return res; VAL [N=2] [L29] ret = bAnd(x) VAL [N=2] [L31] EXPR x[0] VAL [N=2] [L31] temp=x[0] VAL [N=2] [L31] EXPR x[1] VAL [N=2] [L31] x[0] = x[1] VAL [N=2] [L31] x[1] = temp VAL [N=2] [L10] int i; VAL [N=2] [L11] long long res; VAL [N=2] [L12] EXPR x[0] VAL [N=2] [L12] res = x[0] VAL [N=2] [L13] i = 1 VAL [N=2] [L13] COND TRUE i < N VAL [N=2] [L14] EXPR x[i] VAL [N=2] [L14] res = res & x[i] VAL [N=2] [L13] i++ VAL [N=2] [L13] COND FALSE !(i < N) VAL [N=2] [L16] return res; VAL [N=2] [L32] ret2 = bAnd(x) VAL [N=2] [L33] EXPR x[0] VAL [N=2] [L33] temp=x[0] VAL [N=2] [L34] int i =0 ; VAL [N=2] [L34] COND TRUE i