java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/llreve-bench/smt2/arrays/heap__propagate.array.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 11:42:53,837 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 11:42:53,839 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 11:42:53,855 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 11:42:53,856 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 11:42:53,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 11:42:53,859 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 11:42:53,861 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 11:42:53,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 11:42:53,863 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 11:42:53,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 11:42:53,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 11:42:53,866 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 11:42:53,868 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 11:42:53,868 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 11:42:53,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 11:42:53,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 11:42:53,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 11:42:53,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 11:42:53,876 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 11:42:53,877 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 11:42:53,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 11:42:53,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 11:42:53,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 11:42:53,881 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 11:42:53,881 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 11:42:53,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 11:42:53,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 11:42:53,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 11:42:53,884 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 11:42:53,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 11:42:53,886 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 11:42:53,886 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 11:42:53,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 11:42:53,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 11:42:53,888 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 11:42:53,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 11:42:53,901 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 11:42:53,902 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 11:42:53,902 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 11:42:53,903 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 11:42:53,904 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 11:42:53,904 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 11:42:53,904 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 11:42:53,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 11:42:53,905 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 11:42:53,905 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 11:42:53,905 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 11:42:53,905 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 11:42:53,906 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 11:42:53,906 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 11:42:53,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 11:42:53,906 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 11:42:53,908 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 11:42:53,908 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 11:42:53,951 INFO ]: Repository-Root is: /tmp [2018-06-18 11:42:53,971 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 11:42:53,978 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 11:42:53,980 INFO ]: Initializing SmtParser... [2018-06-18 11:42:53,980 INFO ]: SmtParser initialized [2018-06-18 11:42:53,981 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/arrays/heap__propagate.array.smt2 [2018-06-18 11:42:53,982 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 [2018-06-18 11:42:54,080 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__propagate.array.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@537e658c [2018-06-18 11:42:54,264 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__propagate.array.smt2 [2018-06-18 11:42:54,269 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 11:42:54,275 INFO ]: Walking toolchain with 4 elements. [2018-06-18 11:42:54,276 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 11:42:54,276 INFO ]: Initializing ChcToBoogie... [2018-06-18 11:42:54,276 INFO ]: ChcToBoogie initialized [2018-06-18 11:42:54,284 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,334 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54 Unit [2018-06-18 11:42:54,334 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 11:42:54,338 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 11:42:54,338 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 11:42:54,338 INFO ]: Boogie Preprocessor initialized [2018-06-18 11:42:54,362 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,362 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,373 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,374 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,376 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,380 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,380 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (1/1) ... [2018-06-18 11:42:54,388 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 11:42:54,389 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 11:42:54,389 INFO ]: Initializing RCFGBuilder... [2018-06-18 11:42:54,389 INFO ]: RCFGBuilder initialized [2018-06-18 11:42:54,390 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (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) [2018-06-18 11:42:54,406 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 11:42:54,406 INFO ]: Found specification of procedure False [2018-06-18 11:42:54,406 INFO ]: Found implementation of procedure False [2018-06-18 11:42:54,406 INFO ]: Specification and implementation of procedure INV_MAIN_42 given in one single declaration [2018-06-18 11:42:54,407 INFO ]: Found specification of procedure INV_MAIN_42 [2018-06-18 11:42:54,407 INFO ]: Found implementation of procedure INV_MAIN_42 [2018-06-18 11:42:54,407 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 11:42:54,407 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 11:42:54,407 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 [2018-06-18 11:42:54,743 INFO ]: Using library mode [2018-06-18 11:42:54,744 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 11:42:54 BoogieIcfgContainer [2018-06-18 11:42:54,744 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 11:42:54,748 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 11:42:54,748 INFO ]: Initializing TraceAbstraction... [2018-06-18 11:42:54,754 INFO ]: TraceAbstraction initialized [2018-06-18 11:42:54,754 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 11:42:54" (1/3) ... [2018-06-18 11:42:54,755 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec6256a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 11:42:54, skipping insertion in model container [2018-06-18 11:42:54,756 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 11:42:54" (2/3) ... [2018-06-18 11:42:54,756 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ec6256a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 11:42:54, skipping insertion in model container [2018-06-18 11:42:54,756 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 11:42:54" (3/3) ... [2018-06-18 11:42:54,758 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 11:42:54,769 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 11:42:54,778 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 11:42:54,822 INFO ]: Using default assertion order modulation [2018-06-18 11:42:54,822 INFO ]: Interprodecural is true [2018-06-18 11:42:54,822 INFO ]: Hoare is false [2018-06-18 11:42:54,822 INFO ]: Compute interpolants for FPandBP [2018-06-18 11:42:54,822 INFO ]: Backedges is TWOTRACK [2018-06-18 11:42:54,822 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 11:42:54,822 INFO ]: Difference is false [2018-06-18 11:42:54,822 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 11:42:54,823 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 11:42:54,837 INFO ]: Start isEmpty. Operand 15 states. [2018-06-18 11:42:54,849 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 11:42:54,849 INFO ]: Found error trace [2018-06-18 11:42:54,850 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 11:42:54,851 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 11:42:54,857 INFO ]: Analyzing trace with hash -997173371, now seen corresponding path program 1 times [2018-06-18 11:42:54,859 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 11:42:54,861 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 11:42:54,909 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:54,910 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 11:42:54,910 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:54,952 INFO ]: Conjunction of SSA is unsat [2018-06-18 11:42:54,959 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 11:42:55,133 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 11:42:55,136 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 11:42:55,136 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 11:42:55,138 INFO ]: Interpolant automaton has 4 states [2018-06-18 11:42:55,154 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 11:42:55,155 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 11:42:55,157 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-18 11:42:55,306 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 11:42:55,306 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-18 11:42:55,307 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 11:42:55,308 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 11:42:55,308 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 11:42:55,317 INFO ]: With dead ends: 15 [2018-06-18 11:42:55,317 INFO ]: Without dead ends: 15 [2018-06-18 11:42:55,319 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 11:42:55,334 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-18 11:42:55,353 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-18 11:42:55,354 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-18 11:42:55,355 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-18 11:42:55,356 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-18 11:42:55,357 INFO ]: Finished accepts. word is rejected. [2018-06-18 11:42:55,357 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-18 11:42:55,357 INFO ]: Interpolant automaton has 4 states. [2018-06-18 11:42:55,358 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-18 11:42:55,359 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 11:42:55,359 INFO ]: Found error trace [2018-06-18 11:42:55,359 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 11:42:55,359 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 11:42:55,360 INFO ]: Analyzing trace with hash 219620007, now seen corresponding path program 1 times [2018-06-18 11:42:55,360 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 11:42:55,360 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 11:42:55,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:55,361 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 11:42:55,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:55,379 INFO ]: Conjunction of SSA is unsat [2018-06-18 11:42:55,380 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 11:42:55,531 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 11:42:55,532 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 11:42:55,532 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 11:42:55,533 INFO ]: Interpolant automaton has 4 states [2018-06-18 11:42:55,533 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 11:42:55,533 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 11:42:55,536 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-18 11:42:55,976 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 11:42:55,977 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-18 11:42:55,977 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 11:42:55,977 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-18 11:42:55,978 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 11:42:55,978 INFO ]: With dead ends: 19 [2018-06-18 11:42:55,978 INFO ]: Without dead ends: 19 [2018-06-18 11:42:55,979 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 11:42:55,979 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-18 11:42:55,989 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-18 11:42:55,989 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-18 11:42:55,990 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-06-18 11:42:55,990 INFO ]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 13 [2018-06-18 11:42:55,991 INFO ]: Finished accepts. word is rejected. [2018-06-18 11:42:55,991 INFO ]: Abstraction has 17 states and 25 transitions. [2018-06-18 11:42:55,991 INFO ]: Interpolant automaton has 4 states. [2018-06-18 11:42:55,993 INFO ]: Start isEmpty. Operand 17 states and 25 transitions. [2018-06-18 11:42:55,994 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 11:42:55,994 INFO ]: Found error trace [2018-06-18 11:42:55,994 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 11:42:55,994 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 11:42:55,994 INFO ]: Analyzing trace with hash 1103148723, now seen corresponding path program 1 times [2018-06-18 11:42:55,994 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 11:42:55,994 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 11:42:55,995 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:55,995 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 11:42:55,995 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 11:42:56,022 INFO ]: Conjunction of SSA is unsat [2018-06-18 11:42:56,022 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 11:42:56,219 WARN ]: Spent 120.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2018-06-18 11:42:56,480 WARN ]: Spent 197.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-06-18 11:42:56,617 WARN ]: Spent 126.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-06-18 11:42:56,685 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 11:42:56,685 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 11:42:56,685 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-18 11:42:56,692 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 11:42:56,715 INFO ]: Conjunction of SSA is unsat [2018-06-18 11:42:56,725 INFO ]: Computing forward predicates... [2018-06-18 11:42:56,996 INFO ]: detected equality via solver [2018-06-18 11:42:57,000 INFO ]: detected not equals via solver [2018-06-18 11:42:57,002 INFO ]: detected not equals via solver [2018-06-18 11:42:57,004 INFO ]: detected equality via solver [2018-06-18 11:42:57,013 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 78 [2018-06-18 11:42:57,014 INFO ]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-06-18 11:42:57,078 INFO ]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-06-18 11:42:57,078 INFO ]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:52 [2018-06-18 11:42:57,203 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 11:42:57,229 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 11:42:57,229 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-06-18 11:42:57,229 INFO ]: Interpolant automaton has 8 states [2018-06-18 11:42:57,229 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-18 11:42:57,229 INFO ]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-06-18 11:42:57,230 INFO ]: Start difference. First operand 17 states and 25 transitions. Second operand 8 states. [2018-06-18 11:42:57,952 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 11:42:57,952 INFO ]: Finished difference Result 26 states and 46 transitions. [2018-06-18 11:42:57,952 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-18 11:42:57,952 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-18 11:42:57,953 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 11:42:57,953 INFO ]: With dead ends: 26 [2018-06-18 11:42:57,953 INFO ]: Without dead ends: 0 [2018-06-18 11:42:57,953 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-06-18 11:42:57,953 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-18 11:42:57,953 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-18 11:42:57,953 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-18 11:42:57,953 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-18 11:42:57,953 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-18 11:42:57,953 INFO ]: Finished accepts. word is rejected. [2018-06-18 11:42:57,953 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-18 11:42:57,953 INFO ]: Interpolant automaton has 8 states. [2018-06-18 11:42:57,954 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-18 11:42:57,954 INFO ]: Finished isEmpty. No accepting run. [2018-06-18 11:42:57,959 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 11:42:57 BoogieIcfgContainer [2018-06-18 11:42:57,959 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 11:42:57,960 INFO ]: Toolchain (without parser) took 3690.22 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 233.1 MB in the end (delta: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 3.6 GB. [2018-06-18 11:42:57,961 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 11:42:57,961 INFO ]: ChcToBoogie took 58.69 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 263.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-18 11:42:57,962 INFO ]: Boogie Preprocessor took 50.26 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-18 11:42:57,962 INFO ]: RCFGBuilder took 354.92 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-18 11:42:57,963 INFO ]: TraceAbstraction took 3210.70 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 233.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 3.6 GB. [2018-06-18 11:42:57,966 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.69 ms. Allocated memory is still 308.8 MB. Free memory was 264.2 MB in the beginning and 263.2 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * Boogie Preprocessor took 50.26 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 354.92 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3210.70 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 233.1 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 7 SDslu, 80 SDs, 0 SdLazy, 130 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 2 QuantifiedInterpolants, 4648 SizeOfPredicates, 10 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 5/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/heap__propagate.array.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_11-42-57-978.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/heap__propagate.array.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_11-42-57-978.csv Received shutdown request...