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_a.array.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:42:42,049 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:42:42,051 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:42:42,066 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:42:42,066 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:42:42,067 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:42:42,069 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:42:42,071 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:42:42,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:42:42,074 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:42:42,074 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:42:42,075 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:42:42,076 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:42:42,077 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:42:42,081 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:42:42,082 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:42:42,093 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:42:42,095 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:42:42,096 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:42:42,097 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:42:42,098 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:42:42,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:42:42,100 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:42:42,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:42:42,105 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:42:42,106 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:42:42,107 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:42:42,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:42:42,113 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:42:42,114 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:42:42,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:42:42,115 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:42:42,115 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:42:42,116 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:42:42,116 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:42:42,117 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 11:42:42,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:42:42,137 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:42:42,137 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:42:42,137 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:42:42,139 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:42:42,140 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:42:42,140 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:42:42,140 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:42:42,140 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:42:42,141 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:42:42,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:42:42,141 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:42:42,141 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:42:42,141 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:42:42,142 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:42:42,142 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:42:42,142 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:42:42,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:42:42,142 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:42:42,145 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:42:42,145 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:42:42,190 INFO ]: Repository-Root is: /tmp [2018-06-22 11:42:42,204 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:42:42,209 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:42:42,210 INFO ]: Initializing SmtParser... [2018-06-22 11:42:42,210 INFO ]: SmtParser initialized [2018-06-22 11:42:42,211 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_a.array.smt2 [2018-06-22 11:42:42,213 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 11:42:42,298 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_a.array.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@5a56e7f1 [2018-06-22 11:42:42,557 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/arrays/heap__memcpy_a.array.smt2 [2018-06-22 11:42:42,561 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:42:42,568 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:42:42,568 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:42:42,568 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:42:42,569 INFO ]: ChcToBoogie initialized [2018-06-22 11:42:42,572 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,619 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42 Unit [2018-06-22 11:42:42,619 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:42:42,620 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:42:42,620 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:42:42,620 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:42:42,641 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,642 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,651 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,651 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,653 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,655 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,656 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (1/1) ... [2018-06-22 11:42:42,657 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:42:42,660 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:42:42,660 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:42:42,660 INFO ]: RCFGBuilder initialized [2018-06-22 11:42:42,661 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (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 11:42:42,673 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:42:42,673 INFO ]: Found specification of procedure False [2018-06-22 11:42:42,673 INFO ]: Found implementation of procedure False [2018-06-22 11:42:42,673 INFO ]: Specification and implementation of procedure INV_MAIN_42 given in one single declaration [2018-06-22 11:42:42,673 INFO ]: Found specification of procedure INV_MAIN_42 [2018-06-22 11:42:42,673 INFO ]: Found implementation of procedure INV_MAIN_42 [2018-06-22 11:42:42,673 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:42:42,673 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:42:42,673 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 11:42:42,920 INFO ]: Using library mode [2018-06-22 11:42:42,945 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:42:42 BoogieIcfgContainer [2018-06-22 11:42:42,945 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:42:42,946 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:42:42,946 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:42:42,949 INFO ]: TraceAbstraction initialized [2018-06-22 11:42:42,950 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:42:42" (1/3) ... [2018-06-22 11:42:42,951 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328dfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:42:42, skipping insertion in model container [2018-06-22 11:42:42,951 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:42:42" (2/3) ... [2018-06-22 11:42:42,951 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@328dfba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:42:42, skipping insertion in model container [2018-06-22 11:42:42,951 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:42:42" (3/3) ... [2018-06-22 11:42:42,953 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:42:42,962 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:42:42,970 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:42:43,017 INFO ]: Using default assertion order modulation [2018-06-22 11:42:43,017 INFO ]: Interprodecural is true [2018-06-22 11:42:43,018 INFO ]: Hoare is false [2018-06-22 11:42:43,018 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:42:43,018 INFO ]: Backedges is TWOTRACK [2018-06-22 11:42:43,018 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:42:43,018 INFO ]: Difference is false [2018-06-22 11:42:43,018 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:42:43,018 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:42:43,036 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:42:43,048 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:42:43,048 INFO ]: Found error trace [2018-06-22 11:42:43,049 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:43,049 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:43,055 INFO ]: Analyzing trace with hash -1283464881, now seen corresponding path program 1 times [2018-06-22 11:42:43,096 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:43,096 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:43,129 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,129 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:43,129 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,167 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:43,230 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:42:43,232 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:43,232 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:43,234 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:43,289 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:43,289 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:43,291 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:42:43,421 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:43,423 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:42:43,424 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:43,425 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:42:43,425 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:43,438 INFO ]: With dead ends: 15 [2018-06-22 11:42:43,438 INFO ]: Without dead ends: 15 [2018-06-22 11:42:43,440 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 11:42:43,461 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:42:43,483 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:42:43,485 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:42:43,486 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:42:43,487 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:42:43,489 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:43,489 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:42:43,489 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:43,489 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:42:43,491 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:43,491 INFO ]: Found error trace [2018-06-22 11:42:43,491 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:43,491 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:43,491 INFO ]: Analyzing trace with hash -176390316, now seen corresponding path program 1 times [2018-06-22 11:42:43,492 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:43,492 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:43,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,493 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:43,493 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,517 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:43,621 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:43,651 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:43,651 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:43,652 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:43,653 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:43,653 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:43,653 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-22 11:42:43,849 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:43,849 INFO ]: Finished difference Result 17 states and 26 transitions. [2018-06-22 11:42:43,849 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:43,849 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:42:43,849 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:43,850 INFO ]: With dead ends: 17 [2018-06-22 11:42:43,850 INFO ]: Without dead ends: 17 [2018-06-22 11:42:43,850 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 11:42:43,851 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 11:42:43,855 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-06-22 11:42:43,855 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:42:43,856 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2018-06-22 11:42:43,856 INFO ]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 13 [2018-06-22 11:42:43,856 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:43,856 INFO ]: Abstraction has 15 states and 21 transitions. [2018-06-22 11:42:43,856 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:43,856 INFO ]: Start isEmpty. Operand 15 states and 21 transitions. [2018-06-22 11:42:43,857 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:43,857 INFO ]: Found error trace [2018-06-22 11:42:43,857 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:43,857 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:43,857 INFO ]: Analyzing trace with hash -28614159, now seen corresponding path program 1 times [2018-06-22 11:42:43,857 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:43,858 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:43,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,858 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:43,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:43,882 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:44,118 WARN ]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 11:42:44,222 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:44,222 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:42:44,222 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 11:42:44,231 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:44,260 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:44,267 INFO ]: Computing forward predicates... [2018-06-22 11:42:44,653 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 14 [2018-06-22 11:42:44,654 INFO ]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-06-22 11:42:44,671 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. [2018-06-22 11:42:44,724 INFO ]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:11 [2018-06-22 11:42:44,746 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:44,770 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:42:44,770 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 11:42:44,770 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:42:44,770 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:42:44,770 INFO ]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:42:44,770 INFO ]: Start difference. First operand 15 states and 21 transitions. Second operand 8 states. [2018-06-22 11:42:45,491 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:45,491 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:42:45,494 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:42:45,494 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 11:42:45,494 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:45,495 INFO ]: With dead ends: 19 [2018-06-22 11:42:45,495 INFO ]: Without dead ends: 19 [2018-06-22 11:42:45,495 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:42:45,495 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:42:45,502 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:42:45,502 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:42:45,503 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-06-22 11:42:45,503 INFO ]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 13 [2018-06-22 11:42:45,503 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:45,503 INFO ]: Abstraction has 17 states and 25 transitions. [2018-06-22 11:42:45,503 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:42:45,503 INFO ]: Start isEmpty. Operand 17 states and 25 transitions. [2018-06-22 11:42:45,504 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:42:45,504 INFO ]: Found error trace [2018-06-22 11:42:45,504 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:45,504 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:45,504 INFO ]: Analyzing trace with hash 68860537, now seen corresponding path program 1 times [2018-06-22 11:42:45,504 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:45,504 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:45,505 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:45,505 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:45,505 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:45,532 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:45,700 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:42:45,700 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:42:45,700 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:42:45,700 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:42:45,700 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:42:45,701 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:42:45,701 INFO ]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2018-06-22 11:42:45,973 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:45,973 INFO ]: Finished difference Result 19 states and 29 transitions. [2018-06-22 11:42:45,974 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:42:45,974 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:42:45,975 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:45,975 INFO ]: With dead ends: 19 [2018-06-22 11:42:45,975 INFO ]: Without dead ends: 19 [2018-06-22 11:42:45,975 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 [2018-06-22 11:42:45,976 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:42:45,982 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:42:45,982 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:42:45,983 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 24 transitions. [2018-06-22 11:42:45,983 INFO ]: Start accepts. Automaton has 17 states and 24 transitions. Word has length 13 [2018-06-22 11:42:45,983 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:45,983 INFO ]: Abstraction has 17 states and 24 transitions. [2018-06-22 11:42:45,983 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:42:45,983 INFO ]: Start isEmpty. Operand 17 states and 24 transitions. [2018-06-22 11:42:45,984 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:42:45,984 INFO ]: Found error trace [2018-06-22 11:42:45,984 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:45,984 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:45,984 INFO ]: Analyzing trace with hash 1758077595, now seen corresponding path program 1 times [2018-06-22 11:42:45,984 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:45,984 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:45,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:45,987 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:45,987 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:46,021 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:46,235 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:46,235 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:42:46,235 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:42:46,243 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:46,271 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:46,274 INFO ]: Computing forward predicates... [2018-06-22 11:42:46,661 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:46,693 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:42:46,693 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2018-06-22 11:42:46,693 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:42:46,693 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:42:46,693 INFO ]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:42:46,693 INFO ]: Start difference. First operand 17 states and 24 transitions. Second operand 12 states. [2018-06-22 11:42:47,051 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:47,051 INFO ]: Finished difference Result 23 states and 37 transitions. [2018-06-22 11:42:47,051 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:42:47,051 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:42:47,052 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:47,053 INFO ]: With dead ends: 23 [2018-06-22 11:42:47,053 INFO ]: Without dead ends: 23 [2018-06-22 11:42:47,054 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:42:47,054 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 11:42:47,061 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 19. [2018-06-22 11:42:47,061 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:42:47,062 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 27 transitions. [2018-06-22 11:42:47,062 INFO ]: Start accepts. Automaton has 19 states and 27 transitions. Word has length 17 [2018-06-22 11:42:47,062 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:47,062 INFO ]: Abstraction has 19 states and 27 transitions. [2018-06-22 11:42:47,062 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:42:47,062 INFO ]: Start isEmpty. Operand 19 states and 27 transitions. [2018-06-22 11:42:47,063 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:42:47,063 INFO ]: Found error trace [2018-06-22 11:42:47,063 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:47,063 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:47,063 INFO ]: Analyzing trace with hash -1299263242, now seen corresponding path program 1 times [2018-06-22 11:42:47,063 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:47,063 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:47,064 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:47,064 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:47,064 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:47,079 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:47,212 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:47,213 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:42:47,213 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:42:47,227 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:47,247 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:47,250 INFO ]: Computing forward predicates... [2018-06-22 11:42:47,472 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:47,491 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:42:47,491 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 11:42:47,491 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:42:47,492 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:42:47,492 INFO ]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:42:47,492 INFO ]: Start difference. First operand 19 states and 27 transitions. Second operand 12 states. [2018-06-22 11:42:48,048 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:48,048 INFO ]: Finished difference Result 29 states and 50 transitions. [2018-06-22 11:42:48,048 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 11:42:48,048 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:42:48,048 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:48,050 INFO ]: With dead ends: 29 [2018-06-22 11:42:48,050 INFO ]: Without dead ends: 29 [2018-06-22 11:42:48,050 INFO ]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-06-22 11:42:48,050 INFO ]: Start minimizeSevpa. Operand 29 states. [2018-06-22 11:42:48,058 INFO ]: Finished minimizeSevpa. Reduced states from 29 to 23. [2018-06-22 11:42:48,058 INFO ]: Start removeUnreachable. Operand 23 states. [2018-06-22 11:42:48,059 INFO ]: Finished removeUnreachable. Reduced from 23 states to 23 states and 36 transitions. [2018-06-22 11:42:48,059 INFO ]: Start accepts. Automaton has 23 states and 36 transitions. Word has length 17 [2018-06-22 11:42:48,059 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:48,059 INFO ]: Abstraction has 23 states and 36 transitions. [2018-06-22 11:42:48,059 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:42:48,059 INFO ]: Start isEmpty. Operand 23 states and 36 transitions. [2018-06-22 11:42:48,061 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:42:48,061 INFO ]: Found error trace [2018-06-22 11:42:48,061 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:42:48,061 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:42:48,061 INFO ]: Analyzing trace with hash 949480467, now seen corresponding path program 2 times [2018-06-22 11:42:48,061 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:42:48,061 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:42:48,062 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:48,062 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:42:48,062 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:42:48,109 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:48,308 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:48,308 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:42:48,308 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:42:48,318 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:42:48,360 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:42:48,360 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:42:48,363 INFO ]: Computing forward predicates... [2018-06-22 11:42:48,428 INFO ]: detected equality via solver [2018-06-22 11:42:48,432 INFO ]: detected equality via solver [2018-06-22 11:42:48,433 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 27 treesize of output 57 [2018-06-22 11:42:48,434 INFO ]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-06-22 11:42:48,447 INFO ]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-06-22 11:42:48,447 INFO ]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:68 [2018-06-22 11:42:48,491 INFO ]: detected not equals via solver [2018-06-22 11:42:48,496 INFO ]: detected not equals via solver [2018-06-22 11:42:48,513 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 109 [2018-06-22 11:42:48,515 INFO ]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-06-22 11:42:48,559 INFO ]: detected not equals via solver [2018-06-22 11:42:48,572 INFO ]: detected not equals via solver [2018-06-22 11:42:48,592 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 114 [2018-06-22 11:42:48,593 INFO ]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-06-22 11:42:48,598 INFO ]: detected not equals via solver [2018-06-22 11:42:48,599 INFO ]: detected not equals via solver [2018-06-22 11:42:48,600 INFO ]: detected not equals via solver [2018-06-22 11:42:48,600 INFO ]: detected not equals via solver [2018-06-22 11:42:48,601 INFO ]: detected equality via solver [2018-06-22 11:42:48,607 INFO ]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 113 [2018-06-22 11:42:48,608 INFO ]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-06-22 11:42:48,648 INFO ]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-06-22 11:42:48,648 INFO ]: Needed 4 recursive calls to eliminate 5 variables, input treesize:86, output treesize:139 [2018-06-22 11:42:50,754 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:42:50,775 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:42:50,775 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2018-06-22 11:42:50,775 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:42:50,775 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:42:50,776 INFO ]: CoverageRelationStatistics Valid=33, Invalid=98, Unknown=1, NotChecked=0, Total=132 [2018-06-22 11:42:50,776 INFO ]: Start difference. First operand 23 states and 36 transitions. Second operand 12 states. [2018-06-22 11:42:51,095 WARN ]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2018-06-22 11:42:51,206 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:42:51,246 INFO ]: Finished difference Result 26 states and 44 transitions. [2018-06-22 11:42:51,247 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:42:51,247 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:42:51,247 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:42:51,247 INFO ]: With dead ends: 26 [2018-06-22 11:42:51,247 INFO ]: Without dead ends: 0 [2018-06-22 11:42:51,247 INFO ]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=53, Invalid=128, Unknown=1, NotChecked=0, Total=182 [2018-06-22 11:42:51,247 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:42:51,247 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:42:51,247 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:42:51,247 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:42:51,247 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:42:51,247 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:42:51,247 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:42:51,247 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:42:51,247 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:42:51,247 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:42:51,251 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:42:51 BoogieIcfgContainer [2018-06-22 11:42:51,251 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:42:51,252 INFO ]: Toolchain (without parser) took 8690.77 ms. Allocated memory was 303.0 MB in the beginning and 343.4 MB in the end (delta: 40.4 MB). Free memory was 258.6 MB in the beginning and 174.4 MB in the end (delta: 84.2 MB). Peak memory consumption was 124.6 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:51,253 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:42:51,253 INFO ]: ChcToBoogie took 51.28 ms. Allocated memory is still 303.0 MB. Free memory was 258.6 MB in the beginning and 256.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:51,254 INFO ]: Boogie Preprocessor took 37.28 ms. Allocated memory is still 303.0 MB. Free memory was 256.6 MB in the beginning and 255.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:51,254 INFO ]: RCFGBuilder took 284.83 ms. Allocated memory is still 303.0 MB. Free memory was 255.5 MB in the beginning and 246.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:51,255 INFO ]: TraceAbstraction took 8305.16 ms. Allocated memory was 303.0 MB in the beginning and 343.4 MB in the end (delta: 40.4 MB). Free memory was 246.5 MB in the beginning and 174.4 MB in the end (delta: 72.2 MB). Peak memory consumption was 112.5 MB. Max. memory is 3.6 GB. [2018-06-22 11:42:51,258 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 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 51.28 ms. Allocated memory is still 303.0 MB. Free memory was 258.6 MB in the beginning and 256.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 37.28 ms. Allocated memory is still 303.0 MB. Free memory was 256.6 MB in the beginning and 255.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 284.83 ms. Allocated memory is still 303.0 MB. Free memory was 255.5 MB in the beginning and 246.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 8305.16 ms. Allocated memory was 303.0 MB in the beginning and 343.4 MB in the end (delta: 40.4 MB). Free memory was 246.5 MB in the beginning and 174.4 MB in the end (delta: 72.2 MB). Peak memory consumption was 112.5 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, 8.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 116 SDtfs, 38 SDslu, 300 SDs, 0 SdLazy, 518 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=6, 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, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 152 ConstructedInterpolants, 4 QuantifiedInterpolants, 19220 SizeOfPredicates, 36 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 32/68 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_a.array.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-42-51-270.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/heap__memcpy_a.array.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-42-51-270.csv Received shutdown request...