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_Goto.epf -i /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:53:37,301 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:53:37,305 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:53:37,315 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:53:37,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:53:37,317 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:53:37,318 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:53:37,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:53:37,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:53:37,322 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:53:37,323 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:53:37,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:53:37,324 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:53:37,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:53:37,326 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:53:37,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:53:37,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:53:37,330 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:53:37,332 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:53:37,333 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:53:37,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:53:37,337 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:53:37,337 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:53:37,337 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:53:37,338 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:53:37,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:53:37,340 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:53:37,341 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:53:37,342 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:53:37,342 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:53:37,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:53:37,344 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:53:37,344 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:53:37,353 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:53:37,354 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:53:37,354 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:53:37,375 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:53:37,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:53:37,377 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:53:37,377 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:53:37,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:53:37,379 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:53:37,379 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:53:37,379 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:53:37,379 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:53:37,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:53:37,380 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:53:37,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:53:37,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:53:37,380 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:53:37,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:53:37,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:53:37,382 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:53:37,384 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:53:37,384 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:53:37,439 INFO ]: Repository-Root is: /tmp [2018-06-22 01:53:37,456 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:53:37,461 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:53:37,463 INFO ]: Initializing SmtParser... [2018-06-22 01:53:37,463 INFO ]: SmtParser initialized [2018-06-22 01:53:37,464 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 [2018-06-22 01:53:37,465 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 01:53:37,561 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 unknown [2018-06-22 01:53:37,836 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/termination/alias_partial00.smt2 [2018-06-22 01:53:37,841 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:53:37,846 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:53:37,846 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:53:37,846 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:53:37,847 INFO ]: ChcToBoogie initialized [2018-06-22 01:53:37,850 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,908 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37 Unit [2018-06-22 01:53:37,908 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:53:37,909 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:53:37,909 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:53:37,909 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:53:37,932 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,932 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,941 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,941 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,944 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,947 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,950 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (1/1) ... [2018-06-22 01:53:37,951 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:53:37,952 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:53:37,952 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:53:37,952 INFO ]: RCFGBuilder initialized [2018-06-22 01:53:37,953 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (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 01:53:37,971 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:53:37,971 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:53:37,971 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:53:37,972 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:53:37,972 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:53:37,972 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 01:53:38,307 INFO ]: Using library mode [2018-06-22 01:53:38,308 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:38 BoogieIcfgContainer [2018-06-22 01:53:38,308 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:53:38,309 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:53:38,309 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:53:38,316 INFO ]: TraceAbstraction initialized [2018-06-22 01:53:38,316 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:53:37" (1/3) ... [2018-06-22 01:53:38,317 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ad658c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:53:38, skipping insertion in model container [2018-06-22 01:53:38,317 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:53:37" (2/3) ... [2018-06-22 01:53:38,317 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ad658c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:53:38, skipping insertion in model container [2018-06-22 01:53:38,317 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:53:38" (3/3) ... [2018-06-22 01:53:38,321 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:53:38,331 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:53:38,340 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:53:38,377 INFO ]: Using default assertion order modulation [2018-06-22 01:53:38,378 INFO ]: Interprodecural is true [2018-06-22 01:53:38,378 INFO ]: Hoare is false [2018-06-22 01:53:38,378 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:53:38,378 INFO ]: Backedges is TWOTRACK [2018-06-22 01:53:38,378 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:53:38,378 INFO ]: Difference is false [2018-06-22 01:53:38,378 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:53:38,378 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:53:38,393 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 01:53:38,404 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-22 01:53:38,404 INFO ]: Found error trace [2018-06-22 01:53:38,405 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-22 01:53:38,406 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:38,410 INFO ]: Analyzing trace with hash -943369384, now seen corresponding path program 1 times [2018-06-22 01:53:38,411 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:38,412 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:38,449 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,449 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:38,449 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,480 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:38,520 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:38,522 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:38,522 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 01:53:38,523 INFO ]: Interpolant automaton has 2 states [2018-06-22 01:53:38,537 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 01:53:38,537 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:53:38,539 INFO ]: Start difference. First operand 13 states. Second operand 2 states. [2018-06-22 01:53:38,558 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:38,558 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 01:53:38,558 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 01:53:38,559 INFO ]: Start accepts. Automaton has 2 states. Word has length 6 [2018-06-22 01:53:38,559 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:38,565 INFO ]: With dead ends: 11 [2018-06-22 01:53:38,566 INFO ]: Without dead ends: 11 [2018-06-22 01:53:38,567 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 01:53:38,581 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 01:53:38,594 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 01:53:38,594 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 01:53:38,595 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 01:53:38,596 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2018-06-22 01:53:38,596 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:38,596 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 01:53:38,596 INFO ]: Interpolant automaton has 2 states. [2018-06-22 01:53:38,596 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 01:53:38,597 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 01:53:38,597 INFO ]: Found error trace [2018-06-22 01:53:38,597 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:38,597 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:38,597 INFO ]: Analyzing trace with hash 864440782, now seen corresponding path program 1 times [2018-06-22 01:53:38,597 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:38,597 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:38,598 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,598 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:38,598 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,616 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:38,688 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:53:38,688 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:38,688 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:53:38,690 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:53:38,690 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:53:38,690 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:53:38,690 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2018-06-22 01:53:38,743 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:38,744 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 01:53:38,744 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:53:38,744 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-22 01:53:38,745 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:38,745 INFO ]: With dead ends: 12 [2018-06-22 01:53:38,745 INFO ]: Without dead ends: 12 [2018-06-22 01:53:38,746 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:53:38,746 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 01:53:38,748 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 01:53:38,748 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 01:53:38,748 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 01:53:38,748 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 01:53:38,748 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:38,748 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 01:53:38,749 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:53:38,749 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 01:53:38,750 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 01:53:38,751 INFO ]: Found error trace [2018-06-22 01:53:38,751 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:53:38,751 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:53:38,751 INFO ]: Analyzing trace with hash 1081389334, now seen corresponding path program 1 times [2018-06-22 01:53:38,751 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:53:38,751 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:53:38,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,752 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:53:38,752 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:53:38,777 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:53:39,065 INFO ]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 01:53:39,065 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:53:39,065 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 01:53:39,065 INFO ]: Interpolant automaton has 5 states [2018-06-22 01:53:39,066 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 01:53:39,066 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:53:39,066 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-06-22 01:53:39,274 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:53:39,274 INFO ]: Finished difference Result 8 states and 8 transitions. [2018-06-22 01:53:39,274 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:53:39,274 INFO ]: Start accepts. Automaton has 5 states. Word has length 11 [2018-06-22 01:53:39,274 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:53:39,274 INFO ]: With dead ends: 8 [2018-06-22 01:53:39,274 INFO ]: Without dead ends: 0 [2018-06-22 01:53:39,275 INFO ]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-22 01:53:39,275 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:53:39,275 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:53:39,275 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:53:39,275 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:53:39,275 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-06-22 01:53:39,275 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:53:39,275 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:53:39,275 INFO ]: Interpolant automaton has 5 states. [2018-06-22 01:53:39,275 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:53:39,275 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:53:39,280 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:53:39 BoogieIcfgContainer [2018-06-22 01:53:39,280 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:53:39,281 INFO ]: Toolchain (without parser) took 1439.60 ms. Allocated memory is still 308.8 MB. Free memory was 262.3 MB in the beginning and 222.2 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:39,283 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:53:39,283 INFO ]: ChcToBoogie took 62.39 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:39,284 INFO ]: Boogie Preprocessor took 42.04 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 258.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 01:53:39,284 INFO ]: RCFGBuilder took 356.13 ms. Allocated memory is still 308.8 MB. Free memory was 258.4 MB in the beginning and 248.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:39,285 INFO ]: TraceAbstraction took 970.51 ms. Allocated memory is still 308.8 MB. Free memory was 248.4 MB in the beginning and 222.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 3.6 GB. [2018-06-22 01:53:39,288 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.39 ms. Allocated memory is still 308.8 MB. Free memory was 261.3 MB in the beginning and 259.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.04 ms. Allocated memory is still 308.8 MB. Free memory was 259.4 MB in the beginning and 258.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 356.13 ms. Allocated memory is still 308.8 MB. Free memory was 258.4 MB in the beginning and 248.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 970.51 ms. Allocated memory is still 308.8 MB. Free memory was 248.4 MB in the beginning and 222.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 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 2 procedures, 13 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 3 SDslu, 19 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 553 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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/alias_partial00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-53-39-306.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/alias_partial00.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-53-39-306.csv Received shutdown request...