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/vmt-chc-benchmarks/cav12/s3_srvr_8.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 14:22:44,650 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 14:22:44,652 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 14:22:44,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 14:22:44,665 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 14:22:44,668 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 14:22:44,669 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 14:22:44,671 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 14:22:44,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 14:22:44,674 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 14:22:44,675 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 14:22:44,675 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 14:22:44,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 14:22:44,677 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 14:22:44,679 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 14:22:44,680 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 14:22:44,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 14:22:44,690 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 14:22:44,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 14:22:44,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 14:22:44,695 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 14:22:44,697 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 14:22:44,698 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 14:22:44,698 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 14:22:44,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 14:22:44,702 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 14:22:44,702 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 14:22:44,703 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 14:22:44,704 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 14:22:44,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 14:22:44,705 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 14:22:44,709 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 14:22:44,709 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 14:22:44,710 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 14:22:44,710 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 14:22:44,710 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 14:22:44,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 14:22:44,732 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 14:22:44,732 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 14:22:44,732 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 14:22:44,733 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 14:22:44,733 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 14:22:44,733 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 14:22:44,734 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 14:22:44,734 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 14:22:44,734 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 14:22:44,734 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 14:22:44,734 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 14:22:44,735 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 14:22:44,735 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 14:22:44,735 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 14:22:44,735 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 14:22:44,735 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 14:22:44,736 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 14:22:44,736 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 14:22:44,737 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 14:22:44,737 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 14:22:44,785 INFO ]: Repository-Root is: /tmp [2018-06-22 14:22:44,799 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 14:22:44,804 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 14:22:44,805 INFO ]: Initializing SmtParser... [2018-06-22 14:22:44,806 INFO ]: SmtParser initialized [2018-06-22 14:22:44,806 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_8.cil.smt2 [2018-06-22 14:22:44,808 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 14:22:44,881 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_8.cil.smt2 unknown [2018-06-22 14:22:45,320 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_8.cil.smt2 [2018-06-22 14:22:45,325 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 14:22:45,337 INFO ]: Walking toolchain with 4 elements. [2018-06-22 14:22:45,338 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 14:22:45,338 INFO ]: Initializing ChcToBoogie... [2018-06-22 14:22:45,346 INFO ]: ChcToBoogie initialized [2018-06-22 14:22:45,349 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,445 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45 Unit [2018-06-22 14:22:45,445 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 14:22:45,446 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 14:22:45,446 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 14:22:45,446 INFO ]: Boogie Preprocessor initialized [2018-06-22 14:22:45,471 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,471 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,485 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,486 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,515 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,516 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,528 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (1/1) ... [2018-06-22 14:22:45,532 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 14:22:45,532 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 14:22:45,532 INFO ]: Initializing RCFGBuilder... [2018-06-22 14:22:45,532 INFO ]: RCFGBuilder initialized [2018-06-22 14:22:45,533 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (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 14:22:45,559 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 14:22:45,559 INFO ]: Found specification of procedure False [2018-06-22 14:22:45,559 INFO ]: Found implementation of procedure False [2018-06-22 14:22:45,560 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 14:22:45,560 INFO ]: Found specification of procedure state [2018-06-22 14:22:45,560 INFO ]: Found implementation of procedure state [2018-06-22 14:22:45,560 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 14:22:45,560 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 14:22:45,560 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 14:22:45,987 INFO ]: Using library mode [2018-06-22 14:22:45,988 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:22:45 BoogieIcfgContainer [2018-06-22 14:22:45,988 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 14:22:45,990 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 14:22:45,990 INFO ]: Initializing TraceAbstraction... [2018-06-22 14:22:45,994 INFO ]: TraceAbstraction initialized [2018-06-22 14:22:45,994 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:22:45" (1/3) ... [2018-06-22 14:22:45,995 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:22:45, skipping insertion in model container [2018-06-22 14:22:45,995 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:22:45" (2/3) ... [2018-06-22 14:22:45,995 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f99e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:22:45, skipping insertion in model container [2018-06-22 14:22:45,996 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:22:45" (3/3) ... [2018-06-22 14:22:45,997 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 14:22:46,007 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 14:22:46,018 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 14:22:46,067 INFO ]: Using default assertion order modulation [2018-06-22 14:22:46,067 INFO ]: Interprodecural is true [2018-06-22 14:22:46,067 INFO ]: Hoare is false [2018-06-22 14:22:46,067 INFO ]: Compute interpolants for FPandBP [2018-06-22 14:22:46,067 INFO ]: Backedges is TWOTRACK [2018-06-22 14:22:46,067 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 14:22:46,068 INFO ]: Difference is false [2018-06-22 14:22:46,068 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 14:22:46,068 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 14:22:46,083 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 14:22:46,097 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 14:22:46,097 INFO ]: Found error trace [2018-06-22 14:22:46,098 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:22:46,098 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:22:46,104 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 14:22:46,106 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:22:46,106 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:22:46,146 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:46,146 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:22:46,146 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:46,180 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:46,288 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 14:22:46,290 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 14:22:46,290 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 14:22:46,292 INFO ]: Interpolant automaton has 4 states [2018-06-22 14:22:46,309 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 14:22:46,309 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:22:46,312 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 14:22:46,445 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:22:46,445 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 14:22:46,446 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 14:22:46,447 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 14:22:46,447 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:22:46,456 INFO ]: With dead ends: 13 [2018-06-22 14:22:46,457 INFO ]: Without dead ends: 13 [2018-06-22 14:22:46,460 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 14:22:46,478 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 14:22:46,539 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 14:22:46,540 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 14:22:46,541 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 14:22:46,542 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 14:22:46,542 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:22:46,542 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 14:22:46,542 INFO ]: Interpolant automaton has 4 states. [2018-06-22 14:22:46,542 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 14:22:46,543 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 14:22:46,543 INFO ]: Found error trace [2018-06-22 14:22:46,543 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:22:46,543 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:22:46,544 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 14:22:46,544 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:22:46,544 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:22:46,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:46,545 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:22:46,545 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:46,741 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:47,111 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:22:47,111 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:22:47,111 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 14:22:47,120 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:22:47,222 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:47,235 INFO ]: Computing forward predicates... [2018-06-22 14:22:48,230 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:22:48,255 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:22:48,255 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-06-22 14:22:48,256 INFO ]: Interpolant automaton has 10 states [2018-06-22 14:22:48,256 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 14:22:48,256 INFO ]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-06-22 14:22:48,256 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 10 states. [2018-06-22 14:22:48,447 WARN ]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-22 14:22:48,779 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:22:48,779 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 14:22:48,780 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 14:22:48,780 INFO ]: Start accepts. Automaton has 10 states. Word has length 13 [2018-06-22 14:22:48,780 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:22:48,781 INFO ]: With dead ends: 15 [2018-06-22 14:22:48,781 INFO ]: Without dead ends: 15 [2018-06-22 14:22:48,782 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-06-22 14:22:48,782 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 14:22:48,784 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 14:22:48,784 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 14:22:48,784 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 14:22:48,784 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 14:22:48,784 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:22:48,785 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 14:22:48,785 INFO ]: Interpolant automaton has 10 states. [2018-06-22 14:22:48,785 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 14:22:48,786 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 14:22:48,786 INFO ]: Found error trace [2018-06-22 14:22:48,786 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:22:48,786 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:22:48,787 INFO ]: Analyzing trace with hash -1486246934, now seen corresponding path program 2 times [2018-06-22 14:22:48,787 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:22:48,787 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:22:48,788 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:48,788 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:22:48,788 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:48,899 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:49,331 WARN ]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 14:22:49,507 WARN ]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 14:22:49,533 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:22:49,533 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:22:49,533 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 14:22:49,542 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 14:22:49,645 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 14:22:49,645 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:49,653 INFO ]: Computing forward predicates... [2018-06-22 14:22:50,577 WARN ]: Spent 114.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-06-22 14:22:50,674 INFO ]: Checked inductivity of 10 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 14:22:50,694 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:22:50,694 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-06-22 14:22:50,694 INFO ]: Interpolant automaton has 14 states [2018-06-22 14:22:50,694 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 14:22:50,695 INFO ]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-06-22 14:22:50,695 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 14 states. [2018-06-22 14:22:50,856 WARN ]: Spent 131.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 19 [2018-06-22 14:22:51,018 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:22:51,018 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 14:22:51,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 14:22:51,019 INFO ]: Start accepts. Automaton has 14 states. Word has length 17 [2018-06-22 14:22:51,019 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:22:51,019 INFO ]: With dead ends: 17 [2018-06-22 14:22:51,019 INFO ]: Without dead ends: 17 [2018-06-22 14:22:51,020 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2018-06-22 14:22:51,020 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 14:22:51,023 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 14:22:51,023 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 14:22:51,023 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 14:22:51,023 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 14:22:51,024 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:22:51,024 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 14:22:51,024 INFO ]: Interpolant automaton has 14 states. [2018-06-22 14:22:51,025 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 14:22:51,025 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 14:22:51,025 INFO ]: Found error trace [2018-06-22 14:22:51,025 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:22:51,025 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:22:51,026 INFO ]: Analyzing trace with hash -2056434034, now seen corresponding path program 3 times [2018-06-22 14:22:51,026 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:22:51,026 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:22:51,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:51,027 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:22:51,027 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:51,136 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:51,716 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 14:22:51,717 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:22:51,717 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 14:22:51,723 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 14:22:51,895 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 14:22:51,895 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:51,905 INFO ]: Computing forward predicates... [2018-06-22 14:22:53,495 WARN ]: Spent 248.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2018-06-22 14:22:53,867 INFO ]: Checked inductivity of 21 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 14:22:53,901 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:22:53,901 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-06-22 14:22:53,902 INFO ]: Interpolant automaton has 18 states [2018-06-22 14:22:53,902 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 14:22:53,902 INFO ]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-06-22 14:22:53,902 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 18 states. [2018-06-22 14:22:54,245 WARN ]: Spent 306.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2018-06-22 14:22:54,703 WARN ]: Spent 199.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-06-22 14:22:54,867 WARN ]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2018-06-22 14:22:54,905 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:22:54,905 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-22 14:22:54,907 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 14:22:54,907 INFO ]: Start accepts. Automaton has 18 states. Word has length 21 [2018-06-22 14:22:54,907 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:22:54,907 INFO ]: With dead ends: 21 [2018-06-22 14:22:54,907 INFO ]: Without dead ends: 21 [2018-06-22 14:22:54,908 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2018-06-22 14:22:54,908 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 14:22:54,910 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-22 14:22:54,910 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 14:22:54,911 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-06-22 14:22:54,911 INFO ]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 21 [2018-06-22 14:22:54,912 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:22:54,912 INFO ]: Abstraction has 21 states and 22 transitions. [2018-06-22 14:22:54,912 INFO ]: Interpolant automaton has 18 states. [2018-06-22 14:22:54,912 INFO ]: Start isEmpty. Operand 21 states and 22 transitions. [2018-06-22 14:22:54,913 INFO ]: Finished isEmpty. Found accepting run of length 30 [2018-06-22 14:22:54,913 INFO ]: Found error trace [2018-06-22 14:22:54,913 INFO ]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:22:54,913 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:22:54,913 INFO ]: Analyzing trace with hash 1986427350, now seen corresponding path program 4 times [2018-06-22 14:22:54,913 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:22:54,913 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:22:54,914 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:54,914 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:22:54,914 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:22:55,176 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:55,946 WARN ]: Spent 343.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 9 [2018-06-22 14:22:56,289 INFO ]: Checked inductivity of 55 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 14:22:56,289 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:22:56,289 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 14:22:56,295 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 14:22:56,473 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 14:22:56,473 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:22:56,488 INFO ]: Computing forward predicates... [2018-06-22 14:22:57,878 WARN ]: Spent 257.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2018-06-22 14:23:05,595 WARN ]: Spent 6.79 s on a formula simplification. DAG size of input: 410 DAG size of output: 192 [2018-06-22 14:23:06,390 WARN ]: Spent 216.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 32 [2018-06-22 14:23:06,742 INFO ]: Checked inductivity of 55 backedges. 7 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 14:23:06,771 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:23:06,771 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2018-06-22 14:23:06,771 INFO ]: Interpolant automaton has 26 states [2018-06-22 14:23:06,771 INFO ]: Constructing interpolant automaton starting with 26 interpolants. [2018-06-22 14:23:06,771 INFO ]: CoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2018-06-22 14:23:06,772 INFO ]: Start difference. First operand 21 states and 22 transitions. Second operand 26 states. [2018-06-22 14:23:08,505 WARN ]: Spent 1.68 s on a formula simplification. DAG size of input: 212 DAG size of output: 212 [2018-06-22 14:23:09,429 WARN ]: Spent 755.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 119 [2018-06-22 14:23:10,830 WARN ]: Spent 1.25 s on a formula simplification. DAG size of input: 204 DAG size of output: 126 [2018-06-22 14:23:11,827 WARN ]: Spent 932.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 147 [2018-06-22 14:23:13,308 WARN ]: Spent 1.41 s on a formula simplification. DAG size of input: 213 DAG size of output: 197 [2018-06-22 14:23:14,851 WARN ]: Spent 1.42 s on a formula simplification. DAG size of input: 212 DAG size of output: 200 [2018-06-22 14:23:16,467 WARN ]: Spent 1.54 s on a formula simplification. DAG size of input: 212 DAG size of output: 208 [2018-06-22 14:23:16,547 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:23:16,547 INFO ]: Finished difference Result 25 states and 26 transitions. [2018-06-22 14:23:16,548 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 14:23:16,548 INFO ]: Start accepts. Automaton has 26 states. Word has length 29 [2018-06-22 14:23:16,548 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:23:16,548 INFO ]: With dead ends: 25 [2018-06-22 14:23:16,549 INFO ]: Without dead ends: 25 [2018-06-22 14:23:16,549 INFO ]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 14:23:16,549 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 14:23:16,554 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-06-22 14:23:16,554 INFO ]: Start removeUnreachable. Operand 25 states. [2018-06-22 14:23:16,555 INFO ]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-06-22 14:23:16,555 INFO ]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 29 [2018-06-22 14:23:16,555 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:23:16,555 INFO ]: Abstraction has 25 states and 26 transitions. [2018-06-22 14:23:16,555 INFO ]: Interpolant automaton has 26 states. [2018-06-22 14:23:16,555 INFO ]: Start isEmpty. Operand 25 states and 26 transitions. [2018-06-22 14:23:16,556 INFO ]: Finished isEmpty. Found accepting run of length 38 [2018-06-22 14:23:16,556 INFO ]: Found error trace [2018-06-22 14:23:16,556 INFO ]: trace histogram [8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:23:16,556 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:23:16,557 INFO ]: Analyzing trace with hash -411423458, now seen corresponding path program 5 times [2018-06-22 14:23:16,557 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:23:16,557 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:23:16,559 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:23:16,559 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 14:23:16,559 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:23:16,828 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:23:17,685 INFO ]: Checked inductivity of 105 backedges. 1 proven. 76 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-06-22 14:23:17,685 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:23:17,685 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:23:17,691 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 14:23:18,045 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2018-06-22 14:23:18,045 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:23:18,068 INFO ]: Computing forward predicates... [2018-06-22 14:23:24,179 WARN ]: Spent 4.96 s on a formula simplification. DAG size of input: 355 DAG size of output: 187 [2018-06-22 14:23:27,161 WARN ]: Spent 2.21 s on a formula simplification. DAG size of input: 398 DAG size of output: 88 [2018-06-22 14:23:37,416 WARN ]: Spent 8.78 s on a formula simplification. DAG size of input: 530 DAG size of output: 192 Received shutdown request... [2018-06-22 14:23:47,945 WARN ]: Removed 16 from assertion stack [2018-06-22 14:23:47,945 INFO ]: Timeout while computing interpolants [2018-06-22 14:23:48,146 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:23:48,146 WARN ]: Verification canceled [2018-06-22 14:23:48,150 WARN ]: Timeout [2018-06-22 14:23:48,150 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:23:48 BoogieIcfgContainer [2018-06-22 14:23:48,150 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 14:23:48,151 INFO ]: Toolchain (without parser) took 62825.18 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 981.5 MB). Free memory was 239.6 MB in the beginning and 749.9 MB in the end (delta: -510.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 3.6 GB. [2018-06-22 14:23:48,152 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 14:23:48,152 INFO ]: ChcToBoogie took 107.83 ms. Allocated memory is still 306.2 MB. Free memory was 239.6 MB in the beginning and 236.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:23:48,152 INFO ]: Boogie Preprocessor took 85.97 ms. Allocated memory is still 306.2 MB. Free memory was 236.6 MB in the beginning and 234.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:23:48,153 INFO ]: RCFGBuilder took 456.01 ms. Allocated memory is still 306.2 MB. Free memory was 234.6 MB in the beginning and 206.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 3.6 GB. [2018-06-22 14:23:48,153 INFO ]: TraceAbstraction took 62160.11 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 981.5 MB). Free memory was 206.6 MB in the beginning and 749.9 MB in the end (delta: -543.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. [2018-06-22 14:23:48,161 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 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 107.83 ms. Allocated memory is still 306.2 MB. Free memory was 239.6 MB in the beginning and 236.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 85.97 ms. Allocated memory is still 306.2 MB. Free memory was 236.6 MB in the beginning and 234.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 456.01 ms. Allocated memory is still 306.2 MB. Free memory was 234.6 MB in the beginning and 206.6 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 62160.11 ms. Allocated memory was 306.2 MB in the beginning and 1.3 GB in the end (delta: 981.5 MB). Free memory was 206.6 MB in the beginning and 749.9 MB in the end (delta: -543.3 MB). Peak memory consumption was 1.0 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 38 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 535. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 62.0s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 11.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 108 SDslu, 230 SDs, 0 SdLazy, 174 SolverSat, 137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 22.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=5, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 17.0s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 63816 SizeOfPredicates, 1523 NumberOfNonLiveVariables, 1462 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 60/178 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_8.cil.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_14-23-48-172.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_8.cil.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_14-23-48-172.csv Completed graceful shutdown