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/arrays/heap__memcpy_b.array.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:42:54,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:42:54,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:42:54,262 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:42:54,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:42:54,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:42:54,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:42:54,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:42:54,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:42:54,270 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:42:54,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:42:54,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:42:54,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:42:54,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:42:54,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:42:54,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:42:54,279 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:42:54,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:42:54,291 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:42:54,292 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:42:54,293 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:42:54,300 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:42:54,300 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:42:54,300 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:42:54,301 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:42:54,302 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:42:54,303 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:42:54,303 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:42:54,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:42:54,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:42:54,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:42:54,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:42:54,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:42:54,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:42:54,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:42:54,312 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 11:42:54,345 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:42:54,345 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:42:54,346 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:42:54,346 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:42:54,347 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:42:54,347 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:42:54,347 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:42:54,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:42:54,348 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:42:54,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:42:54,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:42:54,348 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:42:54,349 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:42:54,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:42:54,349 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:42:54,349 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:42:54,349 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:42:54,350 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:42:54,353 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:42:54,354 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:42:54,354 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:42:54,415 INFO ]: Repository-Root is: /tmp [2018-06-22 11:42:54,430 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:42:54,434 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:42:54,435 INFO ]: Initializing SmtParser... [2018-06-22 11:42:54,435 INFO ]: SmtParser initialized [2018-06-22 11:42:54,436 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_b.array.smt2 [2018-06-22 11:42:54,437 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 11:42:54,528 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_b.array.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@23944910 [2018-06-22 11:42:54,771 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_b.array.smt2 [2018-06-22 11:42:54,776 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:42:54,782 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:42:54,782 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:42:54,782 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:42:54,783 INFO ]: ChcToBoogie initialized [2018-06-22 11:42:54,786 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,824 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54 Unit [2018-06-22 11:42:54,848 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:42:54,849 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:42:54,849 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:42:54,849 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:42:54,869 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,870 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,878 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,878 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,882 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,884 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,884 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (1/1) ... [2018-06-22 11:42:54,886 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:42:54,887 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:42:54,887 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:42:54,887 INFO ]: RCFGBuilder initialized [2018-06-22 11:42:54,888 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 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) [2018-06-22 11:42:54,907 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:42:54,907 INFO ]: Found specification of procedure False [2018-06-22 11:42:54,907 INFO ]: Found implementation of procedure False [2018-06-22 11:42:54,907 INFO ]: Specification and implementation of procedure INV_MAIN_42 given in one single declaration [2018-06-22 11:42:54,907 INFO ]: Found specification of procedure INV_MAIN_42 [2018-06-22 11:42:54,908 INFO ]: Found implementation of procedure INV_MAIN_42 [2018-06-22 11:42:54,908 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:42:54,908 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:42:54,908 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 11:42:55,172 INFO ]: Using library mode [2018-06-22 11:42:55,172 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:42:55 BoogieIcfgContainer [2018-06-22 11:42:55,172 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:42:55,174 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:42:55,174 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:42:55,177 INFO ]: TraceAbstraction initialized [2018-06-22 11:42:55,177 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:42:54" (1/3) ... [2018-06-22 11:42:55,178 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc78bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:42:55, skipping insertion in model container [2018-06-22 11:42:55,178 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:54" (2/3) ... [2018-06-22 11:42:55,178 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc78bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:42:55, skipping insertion in model container [2018-06-22 11:42:55,178 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:42:55" (3/3) ... [2018-06-22 11:42:55,180 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:42:55,190 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:42:55,199 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:42:55,240 INFO ]: Using default assertion order modulation [2018-06-22 11:42:55,240 INFO ]: Interprodecural is true [2018-06-22 11:42:55,240 INFO ]: Hoare is false [2018-06-22 11:42:55,240 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:42:55,240 INFO ]: Backedges is TWOTRACK [2018-06-22 11:42:55,240 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:42:55,240 INFO ]: Difference is false [2018-06-22 11:42:55,240 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:42:55,240 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:42:55,253 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:42:55,262 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:42:55,262 INFO ]: Found error trace [2018-06-22 11:42:55,263 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:55,263 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:55,268 INFO ]: Analyzing trace with hash -911285918, now seen corresponding path program 1 times [2018-06-22 11:42:55,270 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:55,270 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:55,304 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:55,304 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:55,304 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:55,339 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:55,408 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:42:55,410 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:55,410 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:55,411 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:55,421 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:55,422 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:55,424 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:42:55,543 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:55,543 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:42:55,544 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:55,545 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:42:55,545 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:55,553 INFO ]: With dead ends: 15 [2018-06-22 11:42:55,553 INFO ]: Without dead ends: 15 [2018-06-22 11:42:55,556 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:55,573 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:42:55,594 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:42:55,595 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:42:55,596 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:42:55,599 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:42:55,600 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:55,600 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:42:55,600 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:55,600 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:42:55,602 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:55,602 INFO ]: Found error trace [2018-06-22 11:42:55,603 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:55,603 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:55,603 INFO ]: Analyzing trace with hash 1546110726, now seen corresponding path program 1 times [2018-06-22 11:42:55,603 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:55,603 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:55,604 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:55,604 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:55,604 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:55,628 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:55,720 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:55,787 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:55,787 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:55,789 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:55,789 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:55,789 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:55,789 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-22 11:42:55,999 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:56,000 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:42:56,001 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:56,001 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:42:56,001 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:56,002 INFO ]: With dead ends: 19 [2018-06-22 11:42:56,002 INFO ]: Without dead ends: 19 [2018-06-22 11:42:56,002 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:56,003 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:42:56,014 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:42:56,014 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:42:56,014 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-06-22 11:42:56,015 INFO ]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 13 [2018-06-22 11:42:56,015 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:56,015 INFO ]: Abstraction has 17 states and 25 transitions. [2018-06-22 11:42:56,015 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:56,015 INFO ]: Start isEmpty. Operand 17 states and 25 transitions. [2018-06-22 11:42:56,019 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:56,019 INFO ]: Found error trace [2018-06-22 11:42:56,019 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:56,019 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:56,019 INFO ]: Analyzing trace with hash 2036612432, now seen corresponding path program 1 times [2018-06-22 11:42:56,019 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:56,019 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:56,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:56,020 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:56,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:56,038 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:56,113 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:56,114 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:56,114 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:56,114 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:56,114 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:56,114 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:56,114 INFO ]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2018-06-22 11:42:56,442 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:56,442 INFO ]: Finished difference Result 19 states and 28 transitions. [2018-06-22 11:42:56,442 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:56,442 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:42:56,442 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:56,443 INFO ]: With dead ends: 19 [2018-06-22 11:42:56,443 INFO ]: Without dead ends: 19 [2018-06-22 11:42:56,443 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:56,443 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:42:56,449 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 11:42:56,449 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:42:56,450 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2018-06-22 11:42:56,450 INFO ]: Start accepts. Automaton has 19 states and 28 transitions. Word has length 13 [2018-06-22 11:42:56,450 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:56,450 INFO ]: Abstraction has 19 states and 28 transitions. [2018-06-22 11:42:56,450 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:56,450 INFO ]: Start isEmpty. Operand 19 states and 28 transitions. [2018-06-22 11:42:56,451 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:56,451 INFO ]: Found error trace [2018-06-22 11:42:56,452 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:56,452 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:56,452 INFO ]: Analyzing trace with hash 1791361579, now seen corresponding path program 1 times [2018-06-22 11:42:56,452 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:56,452 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:56,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:56,453 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:56,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:56,475 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:56,862 WARN ]: Spent 288.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2018-06-22 11:42:57,116 WARN ]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-06-22 11:42:57,129 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:57,129 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:42:57,129 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 [2018-06-22 11:42:57,137 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:57,167 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:57,176 INFO ]: Computing forward predicates... [2018-06-22 11:42:57,567 INFO ]: detected equality via solver [2018-06-22 11:42:57,574 INFO ]: detected equality via solver [2018-06-22 11:42:57,581 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 55 [2018-06-22 11:42:57,582 INFO ]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-06-22 11:42:57,677 INFO ]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-06-22 11:42:57,677 INFO ]: Needed 2 recursive calls to eliminate 5 variables, input treesize:67, output treesize:56 [2018-06-22 11:42:57,809 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:57,869 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:42:57,869 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-06-22 11:42:57,869 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:42:57,870 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:42:57,870 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:42:57,870 INFO ]: Start difference. First operand 19 states and 28 transitions. Second operand 8 states. [2018-06-22 11:42:58,303 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:58,303 INFO ]: Finished difference Result 20 states and 31 transitions. [2018-06-22 11:42:58,304 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:42:58,304 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 11:42:58,304 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:58,304 INFO ]: With dead ends: 20 [2018-06-22 11:42:58,304 INFO ]: Without dead ends: 0 [2018-06-22 11:42:58,304 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:42:58,304 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:42:58,304 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:42:58,304 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:42:58,304 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:42:58,304 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-22 11:42:58,304 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:58,305 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:42:58,305 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:42:58,305 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:42:58,305 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:42:58,309 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:42:58 BoogieIcfgContainer [2018-06-22 11:42:58,309 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:42:58,310 INFO ]: Toolchain (without parser) took 3533.84 ms. Allocated memory was 309.3 MB in the beginning and 328.7 MB in the end (delta: 19.4 MB). Free memory was 265.7 MB in the beginning and 272.3 MB in the end (delta: -6.5 MB). Peak memory consumption was 12.9 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:58,311 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:42:58,311 INFO ]: ChcToBoogie took 66.33 ms. Allocated memory is still 309.3 MB. Free memory was 263.7 MB in the beginning and 261.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:58,312 INFO ]: Boogie Preprocessor took 37.28 ms. Allocated memory is still 309.3 MB. Free memory is still 261.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:42:58,312 INFO ]: RCFGBuilder took 285.60 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 253.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:58,313 INFO ]: TraceAbstraction took 3135.87 ms. Allocated memory was 309.3 MB in the beginning and 328.7 MB in the end (delta: 19.4 MB). Free memory was 251.7 MB in the beginning and 272.3 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:42:58,316 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 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 66.33 ms. Allocated memory is still 309.3 MB. Free memory was 263.7 MB in the beginning and 261.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 37.28 ms. Allocated memory is still 309.3 MB. Free memory is still 261.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * RCFGBuilder took 285.60 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 253.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3135.87 ms. Allocated memory was 309.3 MB in the beginning and 328.7 MB in the end (delta: 19.4 MB). Free memory was 251.7 MB in the beginning and 272.3 MB in the end (delta: -20.5 MB). There was no memory consumed. 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, 3.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 6 SDslu, 78 SDs, 0 SdLazy, 121 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 56 ConstructedInterpolants, 2 QuantifiedInterpolants, 5376 SizeOfPredicates, 12 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 8/12 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__memcpy_b.array.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-42-58-326.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/heap__memcpy_b.array.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-42-58-326.csv Received shutdown request...