java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:15:29,620 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:15:29,622 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:15:29,634 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:15:29,634 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:15:29,635 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:15:29,636 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:15:29,638 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:15:29,639 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:15:29,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:15:29,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:15:29,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:15:29,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:15:29,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:15:29,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:15:29,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:15:29,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:15:29,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:15:29,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:15:29,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:15:29,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:15:29,654 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:15:29,654 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:15:29,654 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:15:29,655 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:15:29,656 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:15:29,657 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:15:29,657 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:15:29,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:15:29,658 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:15:29,659 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:15:29,660 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:15:29,660 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:15:29,661 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:15:29,661 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:15:29,662 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 12:15:29,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:15:29,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:15:29,676 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:15:29,676 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:15:29,677 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:15:29,677 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:15:29,678 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:15:29,678 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:15:29,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:15:29,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:15:29,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:15:29,679 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:15:29,679 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:15:29,679 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:15:29,679 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:15:29,679 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:15:29,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:15:29,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:15:29,680 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:15:29,681 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:15:29,682 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:15:29,719 INFO ]: Repository-Root is: /tmp [2018-06-22 12:15:29,731 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:15:29,734 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:15:29,735 INFO ]: Initializing SmtParser... [2018-06-22 12:15:29,736 INFO ]: SmtParser initialized [2018-06-22 12:15:29,737 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 [2018-06-22 12:15:29,738 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -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:1024 -smt2 -in -t:12000 [2018-06-22 12:15:29,830 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@37a577b3 [2018-06-22 12:15:30,513 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/quant/libc__strchr_1.smt2 [2018-06-22 12:15:30,518 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:15:30,523 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:15:30,524 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:15:30,524 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:15:30,524 INFO ]: ChcToBoogie initialized [2018-06-22 12:15:30,529 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,613 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30 Unit [2018-06-22 12:15:30,613 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:15:30,614 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:15:30,614 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:15:30,614 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:15:30,636 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,636 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,664 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,664 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,694 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,698 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,712 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... [2018-06-22 12:15:30,726 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:15:30,727 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:15:30,727 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:15:30,727 INFO ]: RCFGBuilder initialized [2018-06-22 12:15:30,728 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 12:15:30,744 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:15:30,744 INFO ]: Found specification of procedure False [2018-06-22 12:15:30,744 INFO ]: Found implementation of procedure False [2018-06-22 12:15:30,744 INFO ]: Specification and implementation of procedure INV_MAIN_42 given in one single declaration [2018-06-22 12:15:30,744 INFO ]: Found specification of procedure INV_MAIN_42 [2018-06-22 12:15:30,744 INFO ]: Found implementation of procedure INV_MAIN_42 [2018-06-22 12:15:30,744 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:15:30,744 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:15:30,744 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:15:32,046 INFO ]: Using library mode [2018-06-22 12:15:32,047 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:15:32 BoogieIcfgContainer [2018-06-22 12:15:32,047 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:15:32,048 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:15:32,048 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:15:32,051 INFO ]: TraceAbstraction initialized [2018-06-22 12:15:32,051 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:15:30" (1/3) ... [2018-06-22 12:15:32,052 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c2d171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:15:32, skipping insertion in model container [2018-06-22 12:15:32,052 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:15:30" (2/3) ... [2018-06-22 12:15:32,052 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76c2d171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:15:32, skipping insertion in model container [2018-06-22 12:15:32,052 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:15:32" (3/3) ... [2018-06-22 12:15:32,054 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:15:32,063 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:15:32,071 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:15:32,122 INFO ]: Using default assertion order modulation [2018-06-22 12:15:32,123 INFO ]: Interprodecural is true [2018-06-22 12:15:32,123 INFO ]: Hoare is false [2018-06-22 12:15:32,123 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:15:32,123 INFO ]: Backedges is TWOTRACK [2018-06-22 12:15:32,123 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:15:32,123 INFO ]: Difference is false [2018-06-22 12:15:32,123 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:15:32,123 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:15:32,137 INFO ]: Start isEmpty. Operand 77 states. [2018-06-22 12:15:32,159 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:15:32,159 INFO ]: Found error trace [2018-06-22 12:15:32,160 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:15:32,160 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:15:32,164 INFO ]: Analyzing trace with hash 932036384, now seen corresponding path program 1 times [2018-06-22 12:15:32,165 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:15:32,166 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:15:32,197 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:15:32,197 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:15:32,197 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:15:32,216 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:15:32,253 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:15:32,255 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:15:32,255 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 12:15:32,257 INFO ]: Interpolant automaton has 2 states [2018-06-22 12:15:32,272 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 12:15:32,273 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 12:15:32,275 INFO ]: Start difference. First operand 77 states. Second operand 2 states. [2018-06-22 12:15:32,314 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:15:32,315 INFO ]: Finished difference Result 60 states and 159 transitions. [2018-06-22 12:15:32,317 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 12:15:32,318 INFO ]: Start accepts. Automaton has 2 states. Word has length 9 [2018-06-22 12:15:32,318 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:15:32,337 INFO ]: With dead ends: 60 [2018-06-22 12:15:32,337 INFO ]: Without dead ends: 60 [2018-06-22 12:15:32,339 INFO ]: 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 [2018-06-22 12:15:32,367 INFO ]: Start minimizeSevpa. Operand 60 states. [2018-06-22 12:15:32,416 INFO ]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-06-22 12:15:32,417 INFO ]: Start removeUnreachable. Operand 60 states. [2018-06-22 12:15:32,421 INFO ]: Finished removeUnreachable. Reduced from 60 states to 60 states and 159 transitions. [2018-06-22 12:15:32,422 INFO ]: Start accepts. Automaton has 60 states and 159 transitions. Word has length 9 [2018-06-22 12:15:32,430 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:15:32,431 INFO ]: Abstraction has 60 states and 159 transitions. [2018-06-22 12:15:32,431 INFO ]: Interpolant automaton has 2 states. [2018-06-22 12:15:32,431 INFO ]: Start isEmpty. Operand 60 states and 159 transitions. [2018-06-22 12:15:32,436 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:15:32,436 INFO ]: Found error trace [2018-06-22 12:15:32,436 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:15:32,436 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:15:32,436 INFO ]: Analyzing trace with hash 697075965, now seen corresponding path program 1 times [2018-06-22 12:15:32,436 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:15:32,436 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:15:32,437 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:15:32,437 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:15:32,437 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:15:32,469 INFO ]: Conjunction of SSA is sat [2018-06-22 12:15:32,471 INFO ]: Counterexample might be feasible [2018-06-22 12:15:32,489 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:15:32 BoogieIcfgContainer [2018-06-22 12:15:32,489 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 12:15:32,490 INFO ]: Toolchain (without parser) took 1971.25 ms. Allocated memory was 304.1 MB in the beginning and 323.0 MB in the end (delta: 18.9 MB). Free memory was 232.6 MB in the beginning and 272.8 MB in the end (delta: -40.2 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:15:32,491 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.1 MB. Free memory is still 268.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 12:15:32,492 INFO ]: ChcToBoogie took 89.44 ms. Allocated memory is still 304.1 MB. Free memory was 230.6 MB in the beginning and 228.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:15:32,492 INFO ]: Boogie Preprocessor took 112.56 ms. Allocated memory is still 304.1 MB. Free memory was 228.6 MB in the beginning and 224.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:15:32,494 INFO ]: RCFGBuilder took 1319.88 ms. Allocated memory was 304.1 MB in the beginning and 323.0 MB in the end (delta: 18.9 MB). Free memory was 224.6 MB in the beginning and 291.6 MB in the end (delta: -67.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 3.6 GB. [2018-06-22 12:15:32,494 INFO ]: TraceAbstraction took 441.24 ms. Allocated memory is still 323.0 MB. Free memory was 291.6 MB in the beginning and 272.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 3.6 GB. [2018-06-22 12:15:32,498 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 304.1 MB. Free memory is still 268.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 89.44 ms. Allocated memory is still 304.1 MB. Free memory was 230.6 MB in the beginning and 228.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 112.56 ms. Allocated memory is still 304.1 MB. Free memory was 228.6 MB in the beginning and 224.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1319.88 ms. Allocated memory was 304.1 MB in the beginning and 323.0 MB in the end (delta: 18.9 MB). Free memory was 224.6 MB in the beginning and 291.6 MB in the end (delta: -67.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 441.24 ms. Allocated memory is still 323.0 MB. Free memory was 291.6 MB in the beginning and 272.8 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume (((((((((((!(hbv_False_3_Array_Int_Int[hbv_False_4_Int + 1] == hbv_False_6_Int) && !(hbv_False_3_Array_Int_Int[hbv_False_4_Int] == hbv_False_6_Int)) && !(hbv_False_3_Array_Int_Int[hbv_False_4_Int + 1 + 1] != 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int + 1] == 0)) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int + 1 + 1] == hbv_False_7_Int)) && !(hbv_False_3_Array_Int_Int[hbv_False_4_Int] == 0)) && !(0 == 0 && hbv_False_1_Array_Int_Int[hbv_False_5_Int] == hbv_False_3_Array_Int_Int[hbv_False_5_Int])) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int + 1] == hbv_False_7_Int)) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int] == 0)) && !(hbv_False_3_Array_Int_Int[hbv_False_4_Int + 1 + 1] == hbv_False_6_Int)) && hbv_False_1_Array_Int_Int[hbv_False_2_Int + 1 + 1] == 0) && !(hbv_False_1_Array_Int_Int[hbv_False_2_Int] == hbv_False_7_Int)) && !(0 == hbv_False_3_Array_Int_Int[hbv_False_4_Int + 1]); [L0] CALL call INV_MAIN_42(hbv_False_7_Int, hbv_False_2_Int, skolem77(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_1_Array_Int_Int[skolem77(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)], hbv_False_6_Int, hbv_False_4_Int, skolem78(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_3_Array_Int_Int[skolem78(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)]); [L0] assume (((hhv_INV_MAIN_42_3_Int == hbv_INV_MAIN_42_2_Array_Int_Int[hhv_INV_MAIN_42_2_Int] && hhv_INV_MAIN_42_1_Int == hhv_INV_MAIN_42_5_Int) && hhv_INV_MAIN_42_7_Int == hbv_INV_MAIN_42_1_Array_Int_Int[hhv_INV_MAIN_42_6_Int]) && hbv_INV_MAIN_42_2_Array_Int_Int[skolem0(hhv_INV_MAIN_42_1_Int, hhv_INV_MAIN_42_4_Int, hhv_INV_MAIN_42_5_Int, hhv_INV_MAIN_42_2_Int, hhv_INV_MAIN_42_6_Int, hhv_INV_MAIN_42_0_Int, hbv_INV_MAIN_42_2_Array_Int_Int, hbv_INV_MAIN_42_1_Array_Int_Int)] == hbv_INV_MAIN_42_1_Array_Int_Int[skolem0(hhv_INV_MAIN_42_1_Int, hhv_INV_MAIN_42_4_Int, hhv_INV_MAIN_42_5_Int, hhv_INV_MAIN_42_2_Int, hhv_INV_MAIN_42_6_Int, hhv_INV_MAIN_42_0_Int, hbv_INV_MAIN_42_2_Array_Int_Int, hbv_INV_MAIN_42_1_Array_Int_Int)]) && hhv_INV_MAIN_42_0_Int == hhv_INV_MAIN_42_4_Int; [L0] RET call INV_MAIN_42(hbv_False_7_Int, hbv_False_2_Int, skolem77(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_1_Array_Int_Int[skolem77(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)], hbv_False_6_Int, hbv_False_4_Int, skolem78(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int), hbv_False_3_Array_Int_Int[skolem78(hbv_False_6_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_1_Array_Int_Int, hbv_False_3_Array_Int_Int)]); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 77 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 159 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strchr_1.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_12-15-32-514.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/libc__strchr_1.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_12-15-32-514.csv Received shutdown request...