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/lustre/stalmark_e7_27_e7_31.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 19:54:38,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 19:54:38,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 19:54:38,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 19:54:38,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 19:54:38,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 19:54:38,604 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 19:54:38,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 19:54:38,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 19:54:38,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 19:54:38,610 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 19:54:38,611 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 19:54:38,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 19:54:38,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 19:54:38,615 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 19:54:38,616 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 19:54:38,618 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 19:54:38,631 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 19:54:38,632 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 19:54:38,633 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 19:54:38,634 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 19:54:38,636 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 19:54:38,636 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 19:54:38,637 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 19:54:38,638 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 19:54:38,638 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 19:54:38,644 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 19:54:38,644 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 19:54:38,645 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 19:54:38,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 19:54:38,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 19:54:38,651 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 19:54:38,652 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 19:54:38,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 19:54:38,653 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 19:54:38,653 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 19:54:38,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 19:54:38,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 19:54:38,676 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 19:54:38,676 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 19:54:38,677 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 19:54:38,677 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 19:54:38,678 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 19:54:38,678 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 19:54:38,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 19:54:38,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 19:54:38,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 19:54:38,679 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 19:54:38,679 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 19:54:38,679 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 19:54:38,679 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 19:54:38,679 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 19:54:38,679 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 19:54:38,680 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 19:54:38,682 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 19:54:38,684 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 19:54:38,684 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 19:54:38,730 INFO ]: Repository-Root is: /tmp [2018-06-22 19:54:38,744 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 19:54:38,749 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 19:54:38,752 INFO ]: Initializing SmtParser... [2018-06-22 19:54:38,752 INFO ]: SmtParser initialized [2018-06-22 19:54:38,753 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e7_27_e7_31.smt2 [2018-06-22 19:54:38,754 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 19:54:38,841 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e7_27_e7_31.smt2 unknown [2018-06-22 19:54:39,037 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/stalmark_e7_27_e7_31.smt2 [2018-06-22 19:54:39,041 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 19:54:39,047 INFO ]: Walking toolchain with 4 elements. [2018-06-22 19:54:39,047 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 19:54:39,047 INFO ]: Initializing ChcToBoogie... [2018-06-22 19:54:39,047 INFO ]: ChcToBoogie initialized [2018-06-22 19:54:39,051 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,096 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39 Unit [2018-06-22 19:54:39,096 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 19:54:39,096 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 19:54:39,096 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 19:54:39,096 INFO ]: Boogie Preprocessor initialized [2018-06-22 19:54:39,116 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,116 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,123 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,123 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,125 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,127 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,129 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (1/1) ... [2018-06-22 19:54:39,131 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 19:54:39,131 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 19:54:39,131 INFO ]: Initializing RCFGBuilder... [2018-06-22 19:54:39,131 INFO ]: RCFGBuilder initialized [2018-06-22 19:54:39,139 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (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 19:54:39,156 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 19:54:39,156 INFO ]: Found specification of procedure False [2018-06-22 19:54:39,156 INFO ]: Found implementation of procedure False [2018-06-22 19:54:39,157 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 19:54:39,157 INFO ]: Found specification of procedure state [2018-06-22 19:54:39,157 INFO ]: Found implementation of procedure state [2018-06-22 19:54:39,157 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 19:54:39,157 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 19:54:39,157 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 19:54:39,458 INFO ]: Using library mode [2018-06-22 19:54:39,458 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:54:39 BoogieIcfgContainer [2018-06-22 19:54:39,458 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 19:54:39,460 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 19:54:39,460 INFO ]: Initializing TraceAbstraction... [2018-06-22 19:54:39,465 INFO ]: TraceAbstraction initialized [2018-06-22 19:54:39,466 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 07:54:39" (1/3) ... [2018-06-22 19:54:39,466 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eddcf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 07:54:39, skipping insertion in model container [2018-06-22 19:54:39,467 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 07:54:39" (2/3) ... [2018-06-22 19:54:39,467 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eddcf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:54:39, skipping insertion in model container [2018-06-22 19:54:39,467 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:54:39" (3/3) ... [2018-06-22 19:54:39,469 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 19:54:39,479 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 19:54:39,486 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 19:54:39,523 INFO ]: Using default assertion order modulation [2018-06-22 19:54:39,523 INFO ]: Interprodecural is true [2018-06-22 19:54:39,523 INFO ]: Hoare is false [2018-06-22 19:54:39,523 INFO ]: Compute interpolants for FPandBP [2018-06-22 19:54:39,523 INFO ]: Backedges is TWOTRACK [2018-06-22 19:54:39,523 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 19:54:39,523 INFO ]: Difference is false [2018-06-22 19:54:39,523 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 19:54:39,523 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 19:54:39,537 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 19:54:39,547 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 19:54:39,547 INFO ]: Found error trace [2018-06-22 19:54:39,548 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:39,548 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:39,554 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 19:54:39,556 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:39,556 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:39,597 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:39,597 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:39,597 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:39,627 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:39,737 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 19:54:39,739 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 19:54:39,739 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 19:54:39,740 INFO ]: Interpolant automaton has 4 states [2018-06-22 19:54:39,750 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 19:54:39,750 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 19:54:39,753 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 19:54:39,807 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:39,807 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 19:54:39,807 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 19:54:39,808 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 19:54:39,809 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:39,822 INFO ]: With dead ends: 13 [2018-06-22 19:54:39,822 INFO ]: Without dead ends: 13 [2018-06-22 19:54:39,827 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 19:54:39,843 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 19:54:39,862 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 19:54:39,863 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 19:54:39,863 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 19:54:39,864 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 19:54:39,864 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:39,864 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 19:54:39,864 INFO ]: Interpolant automaton has 4 states. [2018-06-22 19:54:39,864 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 19:54:39,865 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 19:54:39,865 INFO ]: Found error trace [2018-06-22 19:54:39,865 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:39,865 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:39,866 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 19:54:39,866 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:39,866 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:39,866 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:39,866 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:39,866 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:39,887 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:40,144 WARN ]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-06-22 19:54:40,230 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:54:40,230 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:54:40,230 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 19:54:40,239 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:40,271 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:40,279 INFO ]: Computing forward predicates... [2018-06-22 19:54:40,542 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 19:54:40,563 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:54:40,563 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 19:54:40,564 INFO ]: Interpolant automaton has 9 states [2018-06-22 19:54:40,564 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 19:54:40,564 INFO ]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-06-22 19:54:40,564 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 19:54:41,050 WARN ]: Spent 412.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2018-06-22 19:54:41,099 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:41,099 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:54:41,100 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 19:54:41,100 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 19:54:41,100 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:41,101 INFO ]: With dead ends: 15 [2018-06-22 19:54:41,101 INFO ]: Without dead ends: 15 [2018-06-22 19:54:41,102 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-06-22 19:54:41,102 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 19:54:41,104 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 19:54:41,104 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 19:54:41,104 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 19:54:41,104 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 19:54:41,104 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:41,104 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 19:54:41,105 INFO ]: Interpolant automaton has 9 states. [2018-06-22 19:54:41,105 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 19:54:41,105 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 19:54:41,105 INFO ]: Found error trace [2018-06-22 19:54:41,105 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:41,105 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:41,105 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 19:54:41,105 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:41,105 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:41,106 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:41,106 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 19:54:41,106 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:41,127 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:41,542 WARN ]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 19:54:41,634 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:54:41,634 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:54:41,634 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 19:54:41,640 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 19:54:41,678 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 19:54:41,678 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:41,681 INFO ]: Computing forward predicates... [2018-06-22 19:54:41,899 INFO ]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 19:54:41,933 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:54:41,933 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2018-06-22 19:54:41,933 INFO ]: Interpolant automaton has 12 states [2018-06-22 19:54:41,933 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 19:54:41,934 INFO ]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-06-22 19:54:41,934 INFO ]: Start difference. First operand 15 states and 16 transitions. Second operand 12 states. [2018-06-22 19:54:42,233 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:42,233 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 19:54:42,234 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 19:54:42,234 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 19:54:42,234 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:42,235 INFO ]: With dead ends: 17 [2018-06-22 19:54:42,235 INFO ]: Without dead ends: 17 [2018-06-22 19:54:42,235 INFO ]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-06-22 19:54:42,235 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 19:54:42,238 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 19:54:42,239 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 19:54:42,239 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 19:54:42,239 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 17 [2018-06-22 19:54:42,239 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:42,239 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 19:54:42,239 INFO ]: Interpolant automaton has 12 states. [2018-06-22 19:54:42,239 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 19:54:42,240 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 19:54:42,240 INFO ]: Found error trace [2018-06-22 19:54:42,240 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:42,240 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:42,240 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 3 times [2018-06-22 19:54:42,240 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:42,240 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:42,241 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:42,241 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:54:42,241 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:42,262 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:42,426 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:54:42,427 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:54:42,427 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 19:54:42,436 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 19:54:42,460 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 19:54:42,460 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:42,463 INFO ]: Computing forward predicates... [2018-06-22 19:54:42,986 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 19:54:43,017 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:54:43,017 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-06-22 19:54:43,017 INFO ]: Interpolant automaton has 17 states [2018-06-22 19:54:43,017 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 19:54:43,017 INFO ]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2018-06-22 19:54:43,018 INFO ]: Start difference. First operand 17 states and 18 transitions. Second operand 17 states. [2018-06-22 19:54:43,205 WARN ]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2018-06-22 19:54:43,479 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:43,479 INFO ]: Finished difference Result 21 states and 22 transitions. [2018-06-22 19:54:43,481 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 19:54:43,481 INFO ]: Start accepts. Automaton has 17 states. Word has length 21 [2018-06-22 19:54:43,481 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:43,481 INFO ]: With dead ends: 21 [2018-06-22 19:54:43,481 INFO ]: Without dead ends: 21 [2018-06-22 19:54:43,482 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2018-06-22 19:54:43,482 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 19:54:43,485 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-06-22 19:54:43,485 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 19:54:43,486 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-06-22 19:54:43,486 INFO ]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 21 [2018-06-22 19:54:43,486 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:43,486 INFO ]: Abstraction has 19 states and 20 transitions. [2018-06-22 19:54:43,486 INFO ]: Interpolant automaton has 17 states. [2018-06-22 19:54:43,486 INFO ]: Start isEmpty. Operand 19 states and 20 transitions. [2018-06-22 19:54:43,487 INFO ]: Finished isEmpty. Found accepting run of length 26 [2018-06-22 19:54:43,487 INFO ]: Found error trace [2018-06-22 19:54:43,487 INFO ]: trace histogram [5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 19:54:43,487 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 19:54:43,487 INFO ]: Analyzing trace with hash 1762711629, now seen corresponding path program 4 times [2018-06-22 19:54:43,487 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 19:54:43,487 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 19:54:43,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:43,488 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 19:54:43,488 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 19:54:43,505 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:43,686 INFO ]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-06-22 19:54:43,686 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 19:54:43,687 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 19:54:43,694 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 19:54:43,726 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 19:54:43,726 INFO ]: Conjunction of SSA is unsat [2018-06-22 19:54:43,729 INFO ]: Computing forward predicates... [2018-06-22 19:54:44,278 INFO ]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-06-22 19:54:44,298 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 19:54:44,299 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-06-22 19:54:44,299 INFO ]: Interpolant automaton has 19 states [2018-06-22 19:54:44,299 INFO ]: Constructing interpolant automaton starting with 19 interpolants. [2018-06-22 19:54:44,299 INFO ]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-06-22 19:54:44,299 INFO ]: Start difference. First operand 19 states and 20 transitions. Second operand 19 states. [2018-06-22 19:54:44,535 WARN ]: Spent 198.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-06-22 19:54:44,742 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 19:54:44,742 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 19:54:44,743 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 19:54:44,743 INFO ]: Start accepts. Automaton has 19 states. Word has length 25 [2018-06-22 19:54:44,743 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 19:54:44,743 INFO ]: With dead ends: 15 [2018-06-22 19:54:44,743 INFO ]: Without dead ends: 0 [2018-06-22 19:54:44,743 INFO ]: 0 DeclaredPredicates, 41 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2018-06-22 19:54:44,743 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 19:54:44,743 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 19:54:44,743 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 19:54:44,743 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 19:54:44,743 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-06-22 19:54:44,743 INFO ]: Finished accepts. word is rejected. [2018-06-22 19:54:44,744 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 19:54:44,744 INFO ]: Interpolant automaton has 19 states. [2018-06-22 19:54:44,744 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 19:54:44,744 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 19:54:44,748 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:54:44 BoogieIcfgContainer [2018-06-22 19:54:44,748 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 19:54:44,748 INFO ]: Toolchain (without parser) took 5706.80 ms. Allocated memory was 308.8 MB in the beginning and 370.7 MB in the end (delta: 61.9 MB). Free memory was 263.2 MB in the beginning and 181.7 MB in the end (delta: 81.5 MB). Peak memory consumption was 143.4 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:44,749 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 19:54:44,750 INFO ]: ChcToBoogie took 48.91 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:44,750 INFO ]: Boogie Preprocessor took 34.35 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 259.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:44,751 INFO ]: RCFGBuilder took 327.22 ms. Allocated memory is still 308.8 MB. Free memory was 259.2 MB in the beginning and 251.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:44,751 INFO ]: TraceAbstraction took 5287.94 ms. Allocated memory was 308.8 MB in the beginning and 370.7 MB in the end (delta: 61.9 MB). Free memory was 251.2 MB in the beginning and 181.7 MB in the end (delta: 69.5 MB). Peak memory consumption was 131.4 MB. Max. memory is 3.6 GB. [2018-06-22 19:54:44,754 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 48.91 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 34.35 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 259.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 327.22 ms. Allocated memory is still 308.8 MB. Free memory was 259.2 MB in the beginning and 251.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 5287.94 ms. Allocated memory was 308.8 MB in the beginning and 370.7 MB in the end (delta: 61.9 MB). Free memory was 251.2 MB in the beginning and 181.7 MB in the end (delta: 69.5 MB). Peak memory consumption was 131.4 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, 13 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 SDtfs, 69 SDslu, 232 SDs, 0 SdLazy, 209 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 11916 SizeOfPredicates, 47 NumberOfNonLiveVariables, 342 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 44/140 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/stalmark_e7_27_e7_31.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_19-54-44-765.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/stalmark_e7_27_e7_31.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_19-54-44-765.csv Received shutdown request...