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/bor5_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 11:27:50,184 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 11:27:50,187 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 11:27:50,199 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 11:27:50,199 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 11:27:50,200 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 11:27:50,202 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 11:27:50,204 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 11:27:50,205 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 11:27:50,206 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 11:27:50,207 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 11:27:50,208 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 11:27:50,209 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 11:27:50,210 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 11:27:50,211 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 11:27:50,212 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 11:27:50,212 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 11:27:50,214 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 11:27:50,217 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 11:27:50,218 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 11:27:50,219 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 11:27:50,221 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 11:27:50,225 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 11:27:50,226 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 11:27:50,226 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 11:27:50,227 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 11:27:50,228 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 11:27:50,229 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 11:27:50,229 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 11:27:50,230 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 11:27:50,230 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 11:27:50,231 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 11:27:50,232 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 11:27:50,233 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 11:27:50,233 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 11:27:50,234 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 11:27:50,234 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 11:27:50,235 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 11:27:50,236 INFO L146 ILogger]: Finished resetting all preferences to default values... [2019-05-23 11:27:50,236 INFO L146 ILogger]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-05-23 11:27:50,255 INFO L146 ILogger]: Loading preferences was successful [2019-05-23 11:27:50,255 INFO L146 ILogger]: Preferences different from defaults after loading the file: [2019-05-23 11:27:50,257 INFO L146 ILogger]: Preferences of BlockEncodingV2 differ from their defaults: [2019-05-23 11:27:50,258 INFO L146 ILogger]: * Create parallel compositions if possible=false [2019-05-23 11:27:50,258 INFO L146 ILogger]: * Use SBE=true [2019-05-23 11:27:50,258 INFO L146 ILogger]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-05-23 11:27:50,258 INFO L146 ILogger]: * sizeof long=4 [2019-05-23 11:27:50,259 INFO L146 ILogger]: * Overapproximate operations on floating types=true [2019-05-23 11:27:50,259 INFO L146 ILogger]: * sizeof POINTER=4 [2019-05-23 11:27:50,259 INFO L146 ILogger]: * Check division by zero=IGNORE [2019-05-23 11:27:50,259 INFO L146 ILogger]: * Pointer to allocated memory at dereference=IGNORE [2019-05-23 11:27:50,259 INFO L146 ILogger]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-05-23 11:27:50,260 INFO L146 ILogger]: * Check array bounds for arrays that are off heap=IGNORE [2019-05-23 11:27:50,260 INFO L146 ILogger]: * sizeof long double=12 [2019-05-23 11:27:50,260 INFO L146 ILogger]: * Check if freed pointer was valid=false [2019-05-23 11:27:50,260 INFO L146 ILogger]: * Use constant arrays=true [2019-05-23 11:27:50,260 INFO L146 ILogger]: * Pointer base address is valid at dereference=IGNORE [2019-05-23 11:27:50,261 INFO L146 ILogger]: Preferences of RCFGBuilder differ from their defaults: [2019-05-23 11:27:50,262 INFO L146 ILogger]: * Size of a code block=SequenceOfStatements [2019-05-23 11:27:50,262 INFO L146 ILogger]: * To the following directory=./dump/ [2019-05-23 11:27:50,262 INFO L146 ILogger]: * SMT solver=External_DefaultMode [2019-05-23 11:27:50,263 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-05-23 11:27:50,263 INFO L146 ILogger]: Preferences of TraceAbstraction differ from their defaults: [2019-05-23 11:27:50,263 INFO L146 ILogger]: * Compute Interpolants along a Counterexample=FPandBP [2019-05-23 11:27:50,263 INFO L146 ILogger]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-05-23 11:27:50,263 INFO L146 ILogger]: * Trace refinement strategy=CAMEL [2019-05-23 11:27:50,264 INFO L146 ILogger]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-05-23 11:27:50,264 INFO L146 ILogger]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-05-23 11:27:50,264 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 11:27:50,305 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 11:27:50,318 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 11:27:50,321 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 11:27:50,323 INFO L146 ILogger]: Initializing CDTParser... [2019-05-23 11:27:50,323 INFO L146 ILogger]: CDTParser initialized [2019-05-23 11:27:50,324 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/array-crafted/bor5_true-unreach-call.i [2019-05-23 11:27:50,379 INFO L146 ILogger]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2012f7d89/e82ab752b86745d9b2a314c08ff6e42f/FLAGfdd8272dd [2019-05-23 11:27:50,847 INFO L146 ILogger]: Found 1 translation units. [2019-05-23 11:27:50,848 INFO L146 ILogger]: Scanning /storage/repos/svcomp/c/array-crafted/bor5_true-unreach-call.i [2019-05-23 11:27:50,853 INFO L146 ILogger]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2012f7d89/e82ab752b86745d9b2a314c08ff6e42f/FLAGfdd8272dd [2019-05-23 11:27:51,194 INFO L146 ILogger]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2012f7d89/e82ab752b86745d9b2a314c08ff6e42f [2019-05-23 11:27:51,203 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 11:27:51,205 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 11:27:51,206 INFO L146 ILogger]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:51,206 INFO L146 ILogger]: Initializing CACSL2BoogieTranslator... [2019-05-23 11:27:51,212 INFO L146 ILogger]: CACSL2BoogieTranslator initialized [2019-05-23 11:27:51,213 INFO L146 ILogger]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,216 INFO L146 ILogger]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc6b3a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51, skipping insertion in model container [2019-05-23 11:27:51,216 INFO L146 ILogger]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,224 INFO L146 ILogger]: Starting translation in SV-COMP mode [2019-05-23 11:27:51,251 INFO L146 ILogger]: Built tables and reachable declarations [2019-05-23 11:27:51,469 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:51,487 INFO L146 ILogger]: Completed pre-run [2019-05-23 11:27:51,522 INFO L146 ILogger]: Analyzing one entry point: main [2019-05-23 11:27:51,542 INFO L146 ILogger]: Completed translation [2019-05-23 11:27:51,543 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51 WrapperNode [2019-05-23 11:27:51,543 INFO L146 ILogger]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-05-23 11:27:51,545 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:51,545 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 11:27:51,545 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 11:27:51,555 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,569 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,607 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 11:27:51,607 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 11:27:51,608 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 11:27:51,608 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 11:27:51,620 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,620 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,624 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,626 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,650 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,758 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,762 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (1/1) ... [2019-05-23 11:27:51,768 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 11:27:51,769 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 11:27:51,769 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 11:27:51,769 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 11:27:51,770 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (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 11:27:51,829 INFO L146 ILogger]: Found specification of procedure write~int [2019-05-23 11:27:51,830 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 11:27:51,830 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 11:27:51,830 INFO L146 ILogger]: Found specification of procedure read~int [2019-05-23 11:27:51,830 INFO L146 ILogger]: Found specification of procedure #Ultimate.allocOnStack [2019-05-23 11:27:51,830 INFO L146 ILogger]: Found specification of procedure ULTIMATE.dealloc [2019-05-23 11:27:52,495 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 11:27:52,496 INFO L146 ILogger]: Removed 14 assume(true) statements. [2019-05-23 11:27:52,497 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:52 BoogieIcfgContainer [2019-05-23 11:27:52,498 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 11:27:52,499 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 11:27:52,499 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 11:27:52,503 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 11:27:52,503 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.05 11:27:51" (1/3) ... [2019-05-23 11:27:52,504 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce86f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:52, skipping insertion in model container [2019-05-23 11:27:52,504 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.05 11:27:51" (2/3) ... [2019-05-23 11:27:52,505 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce86f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 11:27:52, skipping insertion in model container [2019-05-23 11:27:52,505 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 11:27:52" (3/3) ... [2019-05-23 11:27:52,507 INFO L146 ILogger]: Analyzing ICFG bor5_true-unreach-call.i [2019-05-23 11:27:52,518 INFO L146 ILogger]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-05-23 11:27:52,528 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 11:27:52,546 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 11:27:52,579 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 11:27:52,579 INFO L146 ILogger]: Interprodecural is true [2019-05-23 11:27:52,579 INFO L146 ILogger]: Hoare is true [2019-05-23 11:27:52,580 INFO L146 ILogger]: Compute interpolants for FPandBP [2019-05-23 11:27:52,580 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 11:27:52,580 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 11:27:52,580 INFO L146 ILogger]: Difference is false [2019-05-23 11:27:52,580 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 11:27:52,581 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 11:27:52,600 INFO L146 ILogger]: Start isEmpty. Operand 108 states. [2019-05-23 11:27:52,610 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 78 [2019-05-23 11:27:52,611 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:52,612 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 11:27:52,615 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:52,621 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:52,622 INFO L146 ILogger]: Analyzing trace with hash -688569893, now seen corresponding path program 1 times [2019-05-23 11:27:52,624 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:52,624 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:52,678 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:52,678 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:52,678 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:52,745 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:52,818 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 11:27:52,821 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:52,822 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 11:27:52,826 INFO L146 ILogger]: Interpolant automaton has 2 states [2019-05-23 11:27:52,840 INFO L146 ILogger]: Constructing interpolant automaton starting with 2 interpolants. [2019-05-23 11:27:52,841 INFO L146 ILogger]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-05-23 11:27:52,843 INFO L146 ILogger]: Start difference. First operand 108 states. Second operand 2 states. [2019-05-23 11:27:52,879 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:52,879 INFO L146 ILogger]: Finished difference Result 185 states and 200 transitions. [2019-05-23 11:27:52,880 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-05-23 11:27:52,881 INFO L146 ILogger]: Start accepts. Automaton has 2 states. Word has length 77 [2019-05-23 11:27:52,882 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:52,897 INFO L146 ILogger]: With dead ends: 185 [2019-05-23 11:27:52,898 INFO L146 ILogger]: Without dead ends: 102 [2019-05-23 11:27:52,901 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 11:27:52,918 INFO L146 ILogger]: Start minimizeSevpa. Operand 102 states. [2019-05-23 11:27:52,949 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-05-23 11:27:52,951 INFO L146 ILogger]: Start removeUnreachable. Operand 102 states. [2019-05-23 11:27:52,955 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2019-05-23 11:27:52,957 INFO L146 ILogger]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 77 [2019-05-23 11:27:52,958 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:52,958 INFO L146 ILogger]: Abstraction has 102 states and 105 transitions. [2019-05-23 11:27:52,958 INFO L146 ILogger]: Interpolant automaton has 2 states. [2019-05-23 11:27:52,959 INFO L146 ILogger]: Start isEmpty. Operand 102 states and 105 transitions. [2019-05-23 11:27:52,961 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 78 [2019-05-23 11:27:52,962 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:52,962 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 11:27:52,962 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:52,963 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:52,963 INFO L146 ILogger]: Analyzing trace with hash -610948111, now seen corresponding path program 1 times [2019-05-23 11:27:52,963 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:52,963 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:52,965 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:52,965 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:52,965 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:53,030 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:53,167 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 11:27:53,167 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:53,168 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:27:53,169 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:27:53,170 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:27:53,170 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:53,170 INFO L146 ILogger]: Start difference. First operand 102 states and 105 transitions. Second operand 4 states. [2019-05-23 11:27:53,519 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:53,519 INFO L146 ILogger]: Finished difference Result 191 states and 199 transitions. [2019-05-23 11:27:53,520 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:27:53,520 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 77 [2019-05-23 11:27:53,520 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:53,523 INFO L146 ILogger]: With dead ends: 191 [2019-05-23 11:27:53,523 INFO L146 ILogger]: Without dead ends: 120 [2019-05-23 11:27:53,524 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 11:27:53,525 INFO L146 ILogger]: Start minimizeSevpa. Operand 120 states. [2019-05-23 11:27:53,534 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 120 to 105. [2019-05-23 11:27:53,535 INFO L146 ILogger]: Start removeUnreachable. Operand 105 states. [2019-05-23 11:27:53,537 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2019-05-23 11:27:53,537 INFO L146 ILogger]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 77 [2019-05-23 11:27:53,538 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:53,538 INFO L146 ILogger]: Abstraction has 105 states and 108 transitions. [2019-05-23 11:27:53,538 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:27:53,538 INFO L146 ILogger]: Start isEmpty. Operand 105 states and 108 transitions. [2019-05-23 11:27:53,540 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 11:27:53,540 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:53,540 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 11:27:53,541 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:53,541 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:53,541 INFO L146 ILogger]: Analyzing trace with hash 1965114810, now seen corresponding path program 1 times [2019-05-23 11:27:53,541 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:53,541 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:53,542 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:53,543 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:53,543 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:53,575 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 11:27:53,715 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 11:27:53,715 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 11:27:53,715 INFO L146 ILogger]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-05-23 11:27:53,716 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 11:27:53,716 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 11:27:53,717 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 11:27:53,717 INFO L146 ILogger]: Start difference. First operand 105 states and 108 transitions. Second operand 4 states. [2019-05-23 11:27:53,835 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 11:27:53,835 INFO L146 ILogger]: Finished difference Result 138 states and 142 transitions. [2019-05-23 11:27:53,836 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 11:27:53,837 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 98 [2019-05-23 11:27:53,837 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 11:27:53,838 INFO L146 ILogger]: With dead ends: 138 [2019-05-23 11:27:53,838 INFO L146 ILogger]: Without dead ends: 111 [2019-05-23 11:27:53,839 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 11:27:53,840 INFO L146 ILogger]: Start minimizeSevpa. Operand 111 states. [2019-05-23 11:27:53,847 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 111 to 106. [2019-05-23 11:27:53,847 INFO L146 ILogger]: Start removeUnreachable. Operand 106 states. [2019-05-23 11:27:53,849 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 106 states to 106 states and 109 transitions. [2019-05-23 11:27:53,849 INFO L146 ILogger]: Start accepts. Automaton has 106 states and 109 transitions. Word has length 98 [2019-05-23 11:27:53,849 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 11:27:53,850 INFO L146 ILogger]: Abstraction has 106 states and 109 transitions. [2019-05-23 11:27:53,850 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 11:27:53,850 INFO L146 ILogger]: Start isEmpty. Operand 106 states and 109 transitions. [2019-05-23 11:27:53,851 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 106 [2019-05-23 11:27:53,851 INFO L146 ILogger]: Found error trace [2019-05-23 11:27:53,852 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 11:27:53,852 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-05-23 11:27:53,852 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 11:27:53,853 INFO L146 ILogger]: Analyzing trace with hash -1270746457, now seen corresponding path program 1 times [2019-05-23 11:27:53,853 INFO L146 ILogger]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-05-23 11:27:53,853 INFO L146 ILogger]: Using refinement strategy CamelRefinementStrategy [2019-05-23 11:27:53,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:53,854 INFO L146 ILogger]: Keeping assertion order NOT_INCREMENTALLY [2019-05-23 11:27:53,854 INFO L146 ILogger]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-05-23 11:27:53,930 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:27:54,010 INFO L146 ILogger]: Conjunction of SSA is sat [2019-05-23 11:27:54,060 INFO L146 ILogger]: Counterexample might be feasible [2019-05-23 11:27:54,133 INFO L146 ILogger]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 11:27:54 BoogieIcfgContainer [2019-05-23 11:27:54,133 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 11:27:54,137 INFO L146 ILogger]: Toolchain (without parser) took 2930.25 ms. Allocated memory was 133.7 MB in the beginning and 228.1 MB in the end (delta: 94.4 MB). Free memory was 89.4 MB in the beginning and 176.8 MB in the end (delta: -87.4 MB). Peak memory consumption was 7.0 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,138 INFO L146 ILogger]: CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,140 INFO L146 ILogger]: CACSL2BoogieTranslator took 338.16 ms. Allocated memory is still 133.7 MB. Free memory was 89.2 MB in the beginning and 78.9 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,140 INFO L146 ILogger]: Boogie Procedure Inliner took 62.39 ms. Allocated memory is still 133.7 MB. Free memory was 78.9 MB in the beginning and 77.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,141 INFO L146 ILogger]: Boogie Preprocessor took 161.00 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 76.8 MB in the beginning and 178.3 MB in the end (delta: -101.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,143 INFO L146 ILogger]: RCFGBuilder took 729.28 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 155.1 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,145 INFO L146 ILogger]: TraceAbstraction took 1634.68 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 154.5 MB in the beginning and 176.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-05-23 11:27:54,150 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 133.7 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 338.16 ms. Allocated memory is still 133.7 MB. Free memory was 89.2 MB in the beginning and 78.9 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 62.39 ms. Allocated memory is still 133.7 MB. Free memory was 78.9 MB in the beginning and 77.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.00 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 76.8 MB in the beginning and 178.3 MB in the end (delta: -101.6 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 729.28 ms. Allocated memory is still 201.9 MB. Free memory was 178.3 MB in the beginning and 155.1 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1634.68 ms. Allocated memory was 201.9 MB in the beginning and 228.1 MB in the end (delta: 26.2 MB). Free memory was 154.5 MB in the beginning and 176.8 MB in the end (delta: -22.3 MB). Peak memory consumption was 3.9 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 bitwiseOr 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 = bor(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 = bor(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