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-tiling/skippedu_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:24:57,025 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:24:57,027 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:24:57,039 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:24:57,039 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:24:57,040 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:24:57,042 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:24:57,043 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:24:57,045 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:24:57,046 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:24:57,047 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:24:57,047 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:24:57,048 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:24:57,049 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:24:57,050 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:24:57,051 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:24:57,052 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:24:57,054 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:24:57,056 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:24:57,058 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:24:57,059 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:24:57,060 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:24:57,062 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:24:57,063 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:24:57,063 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:24:57,064 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:24:57,064 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:24:57,065 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:24:57,066 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:24:57,067 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:24:57,067 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:24:57,068 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:24:57,069 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:24:57,070 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:24:57,070 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:24:57,070 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:24:57,071 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:24:57,072 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:24:57,072 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:24:57,073 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:24:57,088 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:24:57,088 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:24:57,089 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:24:57,089 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:24:57,089 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:24:57,090 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:24:57,090 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:24:57,090 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:24:57,090 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:24:57,090 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:24:57,091 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:24:57,091 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:24:57,091 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:24:57,091 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:24:57,091 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:24:57,092 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:24:57,092 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:24:57,092 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:24:57,092 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:24:57,092 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:24:57,093 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:24:57,093 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:24:57,093 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:24:57,093 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:24:57,093 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:24:57,094 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:24:57,094 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:24:57,094 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:24:57,094 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 11:24:57,132 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:24:57,149 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:24:57,154 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:24:57,156 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:24:57,156 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:24:57,157 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-tiling/skippedu_false-unreach-call.i [2019-05-23 11:24:57,221 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb647ce94/71dcb5dba6484f62bd916ce1497a46e9/FLAGdfe663b79 [2019-05-23 11:24:57,668 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:24:57,672 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-tiling/skippedu_false-unreach-call.i [2019-05-23 11:24:57,678 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb647ce94/71dcb5dba6484f62bd916ce1497a46e9/FLAGdfe663b79 [2019-05-23 11:24:58,052 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb647ce94/71dcb5dba6484f62bd916ce1497a46e9 [2019-05-23 11:24:58,061 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:24:58,063 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:24:58,064 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:58,064 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:24:58,068 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:24:58,069 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,072 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b7c04c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58, skipping insertion in model container [2019-05-23 11:24:58,072 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,080 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:24:58,102 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:24:58,269 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:58,274 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:24:58,302 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:24:58,324 INFO L146 ILogger]: Completed translation [2019-05-23 11:24:58,324 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58 WrapperNode [2019-05-23 11:24:58,325 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:24:58,326 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:58,326 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:24:58,326 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:24:58,337 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,348 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,372 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:24:58,372 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:24:58,373 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:24:58,373 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:24:58,384 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,385 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,387 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,387 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,393 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,511 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,515 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (1/1) ... [2019-05-23 11:24:58,517 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:24:58,521 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:24:58,521 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:24:58,521 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:24:58,522 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (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 11:24:58,589 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:24:58,590 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:24:58,590 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:24:58,590 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:24:58,590 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:24:58,590 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:24:59,122 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:24:59,122 INFO L146 ILogger]: Removed 8 assume(true) statements. [2019-05-23 11:24:59,124 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:59 BoogieIcfgContainer [2019-05-23 11:24:59,124 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:24:59,125 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:24:59,125 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:24:59,129 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:24:59,129 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:24:58" (1/3) ... [2019-05-23 11:24:59,130 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cac520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:59, skipping insertion in model container [2019-05-23 11:24:59,131 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:24:58" (2/3) ... [2019-05-23 11:24:59,131 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cac520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:24:59, skipping insertion in model container [2019-05-23 11:24:59,131 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:24:59" (3/3) ... [2019-05-23 11:24:59,133 INFO L146 ILogger]: Analyzing ICFG skippedu_false-unreach-call.i [2019-05-23 11:24:59,140 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:24:59,147 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:24:59,164 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:24:59,194 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:24:59,194 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:24:59,195 INFO L146 ILogger]: Hoare is true [2019-05-23 11:24:59,195 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:24:59,195 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:24:59,195 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:24:59,195 INFO L146 ILogger]: Difference is false [2019-05-23 11:24:59,196 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:24:59,196 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:24:59,210 INFO L146 ILogger]: Start isEmpty. Operand 50 states. [2019-05-23 11:24:59,217 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:24:59,218 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:59,219 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] [2019-05-23 11:24:59,221 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:59,227 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:59,227 INFO L146 ILogger]: Analyzing trace with hash 470567764, now seen corresponding path program 1 times [2019-05-23 11:24:59,229 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:59,230 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:59,273 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,273 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:59,273 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,321 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:59,364 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 11:24:59,367 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:24:59,368 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:24:59,374 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:24:59,384 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:24:59,385 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:24:59,387 INFO L146 ILogger]: Start difference. First operand 50 states. Second operand 2 states. [2019-05-23 11:24:59,406 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:24:59,407 INFO L146 ILogger]: Finished difference Result 69 states and 79 transitions. [2019-05-23 11:24:59,407 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:24:59,409 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 23 [2019-05-23 11:24:59,409 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:24:59,418 INFO L146 ILogger]: With dead ends: 69 [2019-05-23 11:24:59,419 INFO L146 ILogger]: Without dead ends: 41 [2019-05-23 11:24:59,422 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 11:24:59,440 INFO L146 ILogger]: Start minimizeSevpa. Operand 41 states. [2019-05-23 11:24:59,457 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-05-23 11:24:59,459 INFO L146 ILogger]: Start removeUnreachable. Operand 41 states. [2019-05-23 11:24:59,460 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2019-05-23 11:24:59,462 INFO L146 ILogger]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 23 [2019-05-23 11:24:59,462 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:24:59,463 INFO L146 ILogger]: Abstraction has 41 states and 44 transitions. [2019-05-23 11:24:59,463 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:24:59,463 INFO L146 ILogger]: Start isEmpty. Operand 41 states and 44 transitions. [2019-05-23 11:24:59,464 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 24 [2019-05-23 11:24:59,464 INFO L146 ILogger]: Found error trace [2019-05-23 11:24:59,464 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] [2019-05-23 11:24:59,465 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:24:59,465 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:24:59,465 INFO L146 ILogger]: Analyzing trace with hash 2027198009, now seen corresponding path program 1 times [2019-05-23 11:24:59,465 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:24:59,466 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:24:59,467 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,467 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:24:59,467 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:24:59,492 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:24:59,722 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 11:24:59,723 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:24:59,723 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:24:59,724 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:24:59,725 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:24:59,725 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:24:59,726 INFO L146 ILogger]: Start difference. First operand 41 states and 44 transitions. Second operand 4 states. [2019-05-23 11:25:00,032 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:25:00,033 INFO L146 ILogger]: Finished difference Result 67 states and 73 transitions. [2019-05-23 11:25:00,033 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:25:00,033 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 23 [2019-05-23 11:25:00,034 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:25:00,035 INFO L146 ILogger]: With dead ends: 67 [2019-05-23 11:25:00,035 INFO L146 ILogger]: Without dead ends: 54 [2019-05-23 11:25:00,037 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 11:25:00,038 INFO L146 ILogger]: Start minimizeSevpa. Operand 54 states. [2019-05-23 11:25:00,048 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-05-23 11:25:00,049 INFO L146 ILogger]: Start removeUnreachable. Operand 42 states. [2019-05-23 11:25:00,050 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2019-05-23 11:25:00,051 INFO L146 ILogger]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 23 [2019-05-23 11:25:00,051 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:25:00,051 INFO L146 ILogger]: Abstraction has 42 states and 45 transitions. [2019-05-23 11:25:00,052 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:25:00,053 INFO L146 ILogger]: Start isEmpty. Operand 42 states and 45 transitions. [2019-05-23 11:25:00,054 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 34 [2019-05-23 11:25:00,054 INFO L146 ILogger]: Found error trace [2019-05-23 11:25:00,054 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] [2019-05-23 11:25:00,054 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:25:00,056 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:25:00,056 INFO L146 ILogger]: Analyzing trace with hash 544350861, now seen corresponding path program 1 times [2019-05-23 11:25:00,056 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:25:00,056 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:25:00,058 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:00,058 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:25:00,058 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:25:00,119 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:25:00,150 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:25:00,177 INFO L146 ILogger]: Counterexample might be feasible [2019-05-23 11:25:00,216 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 11:25:00 BoogieIcfgContainer [2019-05-23 11:25:00,216 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 11:25:00,218 INFO L146 ILogger]: Toolchain (without parser) took 2154.45 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 89.0 MB in the beginning and 124.6 MB in the end (delta: -35.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,220 INFO L146 ILogger]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,221 INFO L146 ILogger]: CACSL2BoogieTranslator took 261.31 ms. Allocated memory is still 141.0 MB. Free memory was 88.8 MB in the beginning and 78.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,222 INFO L146 ILogger]: Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 141.0 MB. Free memory was 78.7 MB in the beginning and 76.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,223 INFO L146 ILogger]: Boogie Preprocessor took 145.11 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 76.9 MB in the beginning and 181.5 MB in the end (delta: -104.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,224 INFO L146 ILogger]: RCFGBuilder took 603.05 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 165.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,225 INFO L146 ILogger]: TraceAbstraction took 1091.32 ms. Allocated memory is still 203.4 MB. Free memory was 164.7 MB in the beginning and 124.6 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. [2019-05-23 11:25:00,230 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 107.3 MB in the beginning and 107.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 261.31 ms. Allocated memory is still 141.0 MB. Free memory was 88.8 MB in the beginning and 78.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.26 ms. Allocated memory is still 141.0 MB. Free memory was 78.7 MB in the beginning and 76.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 145.11 ms. Allocated memory was 141.0 MB in the beginning and 203.4 MB in the end (delta: 62.4 MB). Free memory was 76.9 MB in the beginning and 181.5 MB in the end (delta: -104.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 603.05 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 165.3 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1091.32 ms. Allocated memory is still 203.4 MB. Free memory was 164.7 MB in the beginning and 124.6 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L8] int SIZE; VAL [SIZE=0] [L12] SIZE = __VERIFIER_nondet_int() VAL [SIZE=2] [L13] COND TRUE SIZE > 1 VAL [SIZE=2] [L15] int i; VAL [SIZE=2] [L16] int a[SIZE]; VAL [SIZE=2] [L18] COND FALSE !(SIZE % 2 != 0) VAL [SIZE=2] [L21] i = 1 VAL [SIZE=2] [L21] COND TRUE i <= SIZE/2 VAL [SIZE=2] [L23] EXPR a[2*i-2] VAL [SIZE=2] [L23] COND FALSE !(a[2*i-2] > i) VAL [SIZE=2] [L27] EXPR a[2*i-1] VAL [SIZE=2] [L27] COND FALSE !(a[2*i-1] > i) VAL [SIZE=2] [L21] i++ VAL [SIZE=2] [L21] COND FALSE !(i <= SIZE/2) VAL [SIZE=2] [L33] i = 0 VAL [SIZE=2] [L33] COND TRUE i < SIZE VAL [SIZE=2] [L35] a[i] VAL [SIZE=2] [L5] COND TRUE !(cond) VAL [SIZE=2] [L5] __VERIFIER_error() VAL [SIZE=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 60 SDslu, 18 SDs, 0 SdLazy, 40 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1364 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...