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/loop__barthe.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:57:29,293 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:57:29,295 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:57:29,309 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:57:29,309 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:57:29,311 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:57:29,312 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:57:29,315 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:57:29,317 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:57:29,318 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:57:29,319 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:57:29,320 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:57:29,320 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:57:29,321 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:57:29,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:57:29,325 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:57:29,327 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:57:29,336 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:57:29,337 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:57:29,338 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:57:29,339 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:57:29,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:57:29,344 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:57:29,344 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:57:29,344 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:57:29,345 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:57:29,346 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:57:29,346 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:57:29,350 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:57:29,351 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:57:29,351 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:57:29,352 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:57:29,352 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:57:29,353 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:57:29,353 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:57:29,353 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 11:57:29,373 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:57:29,373 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:57:29,374 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:57:29,374 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:57:29,375 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:57:29,375 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:57:29,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:57:29,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:57:29,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:57:29,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:57:29,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:57:29,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:57:29,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:57:29,378 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:57:29,379 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:57:29,379 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:57:29,428 INFO ]: Repository-Root is: /tmp [2018-06-22 11:57:29,443 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:57:29,448 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:57:29,449 INFO ]: Initializing SmtParser... [2018-06-22 11:57:29,449 INFO ]: SmtParser initialized [2018-06-22 11:57:29,450 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/loop__barthe.smt2 [2018-06-22 11:57:29,451 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 11:57:29,528 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/loop__barthe.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@45c2db6c [2018-06-22 11:57:29,678 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/loop__barthe.smt2 [2018-06-22 11:57:29,682 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:57:29,686 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:57:29,686 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:57:29,687 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:57:29,687 INFO ]: ChcToBoogie initialized [2018-06-22 11:57:29,693 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,741 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29 Unit [2018-06-22 11:57:29,741 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:57:29,741 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:57:29,741 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:57:29,742 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:57:29,764 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,764 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,772 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,772 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,774 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,776 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,778 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (1/1) ... [2018-06-22 11:57:29,780 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:57:29,780 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:57:29,780 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:57:29,780 INFO ]: RCFGBuilder initialized [2018-06-22 11:57:29,784 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (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 11:57:29,799 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:57:29,800 INFO ]: Found specification of procedure False [2018-06-22 11:57:29,800 INFO ]: Found implementation of procedure False [2018-06-22 11:57:29,800 INFO ]: Specification and implementation of procedure INV_MAIN_42 given in one single declaration [2018-06-22 11:57:29,800 INFO ]: Found specification of procedure INV_MAIN_42 [2018-06-22 11:57:29,800 INFO ]: Found implementation of procedure INV_MAIN_42 [2018-06-22 11:57:29,800 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:57:29,800 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:57:29,800 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 11:57:30,116 INFO ]: Using library mode [2018-06-22 11:57:30,117 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:57:30 BoogieIcfgContainer [2018-06-22 11:57:30,117 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:57:30,118 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:57:30,118 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:57:30,121 INFO ]: TraceAbstraction initialized [2018-06-22 11:57:30,121 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:57:29" (1/3) ... [2018-06-22 11:57:30,122 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d2da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:57:30, skipping insertion in model container [2018-06-22 11:57:30,122 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:57:29" (2/3) ... [2018-06-22 11:57:30,122 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d2da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:57:30, skipping insertion in model container [2018-06-22 11:57:30,123 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:57:30" (3/3) ... [2018-06-22 11:57:30,124 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:57:30,134 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:57:30,144 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:57:30,194 INFO ]: Using default assertion order modulation [2018-06-22 11:57:30,194 INFO ]: Interprodecural is true [2018-06-22 11:57:30,194 INFO ]: Hoare is false [2018-06-22 11:57:30,194 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:57:30,194 INFO ]: Backedges is TWOTRACK [2018-06-22 11:57:30,195 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:57:30,195 INFO ]: Difference is false [2018-06-22 11:57:30,195 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:57:30,195 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:57:30,212 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:57:30,226 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:57:30,227 INFO ]: Found error trace [2018-06-22 11:57:30,227 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:30,228 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:30,234 INFO ]: Analyzing trace with hash -997173371, now seen corresponding path program 1 times [2018-06-22 11:57:30,236 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:30,237 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:30,276 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:30,276 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:30,276 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:30,314 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:30,420 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:57:30,423 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:57:30,423 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:57:30,425 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:57:30,436 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:57:30,436 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:57:30,438 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:57:30,562 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:30,562 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:57:30,562 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:57:30,564 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:57:30,564 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:30,578 INFO ]: With dead ends: 15 [2018-06-22 11:57:30,578 INFO ]: Without dead ends: 15 [2018-06-22 11:57:30,583 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 11:57:30,595 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:57:30,630 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:57:30,631 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:57:30,632 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:57:30,633 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:57:30,634 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:30,634 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:57:30,634 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:57:30,634 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:57:30,636 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:57:30,636 INFO ]: Found error trace [2018-06-22 11:57:30,636 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:30,636 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:30,637 INFO ]: Analyzing trace with hash 219620007, now seen corresponding path program 1 times [2018-06-22 11:57:30,637 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:30,637 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:30,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:30,638 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:30,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:30,672 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:31,077 WARN ]: Spent 215.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-06-22 11:57:31,227 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:57:31,227 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:57:31,227 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 11:57:31,235 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:31,278 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:31,289 INFO ]: Computing forward predicates... [2018-06-22 11:57:31,482 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:57:31,502 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:57:31,503 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 11:57:31,503 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:57:31,503 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:57:31,503 INFO ]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:57:31,503 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 8 states. [2018-06-22 11:57:31,839 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:31,839 INFO ]: Finished difference Result 19 states and 31 transitions. [2018-06-22 11:57:31,839 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:57:31,839 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 11:57:31,839 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:31,840 INFO ]: With dead ends: 19 [2018-06-22 11:57:31,840 INFO ]: Without dead ends: 19 [2018-06-22 11:57:31,841 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:57:31,841 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:57:31,848 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:57:31,848 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:57:31,849 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-06-22 11:57:31,849 INFO ]: Start accepts. Automaton has 17 states and 26 transitions. Word has length 13 [2018-06-22 11:57:31,849 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:31,849 INFO ]: Abstraction has 17 states and 26 transitions. [2018-06-22 11:57:31,849 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:57:31,849 INFO ]: Start isEmpty. Operand 17 states and 26 transitions. [2018-06-22 11:57:31,850 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:57:31,850 INFO ]: Found error trace [2018-06-22 11:57:31,850 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:31,850 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:31,850 INFO ]: Analyzing trace with hash 1103148723, now seen corresponding path program 1 times [2018-06-22 11:57:31,850 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:31,850 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:31,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:31,851 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:31,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:31,861 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:31,895 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:57:31,895 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:57:31,895 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:57:31,895 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:57:31,896 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:57:31,896 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:57:31,896 INFO ]: Start difference. First operand 17 states and 26 transitions. Second operand 4 states. [2018-06-22 11:57:32,013 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:32,013 INFO ]: Finished difference Result 21 states and 34 transitions. [2018-06-22 11:57:32,013 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:57:32,013 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:57:32,013 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:32,014 INFO ]: With dead ends: 21 [2018-06-22 11:57:32,014 INFO ]: Without dead ends: 21 [2018-06-22 11:57:32,015 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 11:57:32,015 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 11:57:32,039 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-06-22 11:57:32,039 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:57:32,040 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 29 transitions. [2018-06-22 11:57:32,040 INFO ]: Start accepts. Automaton has 19 states and 29 transitions. Word has length 13 [2018-06-22 11:57:32,040 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:32,040 INFO ]: Abstraction has 19 states and 29 transitions. [2018-06-22 11:57:32,040 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:57:32,040 INFO ]: Start isEmpty. Operand 19 states and 29 transitions. [2018-06-22 11:57:32,041 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:57:32,041 INFO ]: Found error trace [2018-06-22 11:57:32,042 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:32,042 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:32,042 INFO ]: Analyzing trace with hash 857897870, now seen corresponding path program 1 times [2018-06-22 11:57:32,042 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:32,042 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:32,043 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,043 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:32,043 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:32,093 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:57:32,093 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:57:32,093 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:57:32,093 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:57:32,094 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:57:32,094 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:57:32,094 INFO ]: Start difference. First operand 19 states and 29 transitions. Second operand 4 states. [2018-06-22 11:57:32,243 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:32,243 INFO ]: Finished difference Result 21 states and 32 transitions. [2018-06-22 11:57:32,243 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:57:32,244 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:57:32,244 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:32,244 INFO ]: With dead ends: 21 [2018-06-22 11:57:32,244 INFO ]: Without dead ends: 21 [2018-06-22 11:57:32,245 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 11:57:32,245 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 11:57:32,250 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-22 11:57:32,250 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 11:57:32,251 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2018-06-22 11:57:32,251 INFO ]: Start accepts. Automaton has 21 states and 32 transitions. Word has length 13 [2018-06-22 11:57:32,251 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:32,251 INFO ]: Abstraction has 21 states and 32 transitions. [2018-06-22 11:57:32,251 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:57:32,251 INFO ]: Start isEmpty. Operand 21 states and 32 transitions. [2018-06-22 11:57:32,252 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:57:32,252 INFO ]: Found error trace [2018-06-22 11:57:32,253 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:32,253 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:32,253 INFO ]: Analyzing trace with hash 1815177045, now seen corresponding path program 1 times [2018-06-22 11:57:32,253 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:32,253 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:32,253 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,253 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:32,254 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,266 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:32,505 INFO ]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:57:32,505 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:57:32,505 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:57:32,505 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:57:32,505 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:57:32,505 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:57:32,505 INFO ]: Start difference. First operand 21 states and 32 transitions. Second operand 5 states. [2018-06-22 11:57:32,688 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:32,688 INFO ]: Finished difference Result 19 states and 26 transitions. [2018-06-22 11:57:32,689 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:57:32,689 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:57:32,689 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:32,690 INFO ]: With dead ends: 19 [2018-06-22 11:57:32,690 INFO ]: Without dead ends: 18 [2018-06-22 11:57:32,690 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:57:32,690 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:57:32,693 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-06-22 11:57:32,693 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:57:32,694 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 11:57:32,694 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 17 [2018-06-22 11:57:32,694 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:32,694 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 11:57:32,694 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:57:32,694 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 11:57:32,695 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:57:32,695 INFO ]: Found error trace [2018-06-22 11:57:32,695 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:32,695 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:32,695 INFO ]: Analyzing trace with hash -1015654583, now seen corresponding path program 2 times [2018-06-22 11:57:32,695 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:32,695 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:32,696 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,696 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:57:32,696 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:32,712 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:32,897 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:57:32,897 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:57:32,897 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 11:57:32,906 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:57:32,927 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:57:32,928 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:32,931 INFO ]: Computing forward predicates... [2018-06-22 11:57:33,097 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:57:33,128 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:57:33,128 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-06-22 11:57:33,129 INFO ]: Interpolant automaton has 13 states [2018-06-22 11:57:33,129 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 11:57:33,129 INFO ]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-06-22 11:57:33,129 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 13 states. [2018-06-22 11:57:33,538 WARN ]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-06-22 11:57:33,744 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:33,744 INFO ]: Finished difference Result 22 states and 30 transitions. [2018-06-22 11:57:33,745 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 11:57:33,745 INFO ]: Start accepts. Automaton has 13 states. Word has length 17 [2018-06-22 11:57:33,745 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:33,746 INFO ]: With dead ends: 22 [2018-06-22 11:57:33,746 INFO ]: Without dead ends: 22 [2018-06-22 11:57:33,746 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-06-22 11:57:33,746 INFO ]: Start minimizeSevpa. Operand 22 states. [2018-06-22 11:57:33,750 INFO ]: Finished minimizeSevpa. Reduced states from 22 to 16. [2018-06-22 11:57:33,750 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:57:33,750 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 11:57:33,750 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 17 [2018-06-22 11:57:33,750 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:33,750 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 11:57:33,750 INFO ]: Interpolant automaton has 13 states. [2018-06-22 11:57:33,750 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 11:57:33,751 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:57:33,751 INFO ]: Found error trace [2018-06-22 11:57:33,751 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:57:33,751 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:57:33,751 INFO ]: Analyzing trace with hash -1242163792, now seen corresponding path program 1 times [2018-06-22 11:57:33,751 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:57:33,751 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:57:33,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:33,752 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:57:33,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:57:33,773 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:57:33,825 INFO ]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:57:33,826 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:57:33,826 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:57:33,826 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:57:33,826 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:57:33,826 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:57:33,826 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 5 states. [2018-06-22 11:57:33,892 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:57:33,893 INFO ]: Finished difference Result 10 states and 12 transitions. [2018-06-22 11:57:33,893 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:57:33,893 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:57:33,894 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:57:33,894 INFO ]: With dead ends: 10 [2018-06-22 11:57:33,894 INFO ]: Without dead ends: 0 [2018-06-22 11:57:33,894 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:57:33,894 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:57:33,894 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:57:33,894 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:57:33,894 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:57:33,894 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:57:33,894 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:57:33,894 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:57:33,894 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:57:33,894 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:57:33,894 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:57:33,902 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:57:33 BoogieIcfgContainer [2018-06-22 11:57:33,902 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:57:33,903 INFO ]: Toolchain (without parser) took 4220.27 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 262.1 MB in the beginning and 202.0 MB in the end (delta: 60.0 MB). Peak memory consumption was 78.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:57:33,903 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:57:33,904 INFO ]: ChcToBoogie took 54.56 ms. Allocated memory is still 305.7 MB. Free memory was 262.1 MB in the beginning and 260.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:57:33,904 INFO ]: Boogie Preprocessor took 38.20 ms. Allocated memory is still 305.7 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:57:33,905 INFO ]: RCFGBuilder took 336.80 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 251.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:57:33,905 INFO ]: TraceAbstraction took 3783.57 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 250.0 MB in the beginning and 202.0 MB in the end (delta: 48.0 MB). Peak memory consumption was 66.4 MB. Max. memory is 3.6 GB. [2018-06-22 11:57:33,909 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 305.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 54.56 ms. Allocated memory is still 305.7 MB. Free memory was 262.1 MB in the beginning and 260.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 38.20 ms. Allocated memory is still 305.7 MB. Free memory was 260.1 MB in the beginning and 258.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 336.80 ms. Allocated memory is still 305.7 MB. Free memory was 258.1 MB in the beginning and 251.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3783.57 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 250.0 MB in the beginning and 202.0 MB in the end (delta: 48.0 MB). Peak memory consumption was 66.4 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, 3.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 105 SDtfs, 15 SDslu, 171 SDs, 0 SdLazy, 258 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, 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, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 120 ConstructedInterpolants, 2 QuantifiedInterpolants, 8796 SizeOfPredicates, 16 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 33/50 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/loop__barthe.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-57-33-920.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/loop__barthe.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-57-33-920.csv Received shutdown request...