java -Xss4m -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/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 18:05:33,986 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 18:05:33,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 18:05:34,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 18:05:34,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 18:05:34,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 18:05:34,005 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 18:05:34,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 18:05:34,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 18:05:34,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 18:05:34,013 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 18:05:34,013 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 18:05:34,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 18:05:34,015 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 18:05:34,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 18:05:34,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 18:05:34,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 18:05:34,037 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 18:05:34,038 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 18:05:34,039 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 18:05:34,040 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 18:05:34,046 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 18:05:34,046 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 18:05:34,046 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 18:05:34,047 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 18:05:34,052 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 18:05:34,053 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 18:05:34,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 18:05:34,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 18:05:34,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 18:05:34,056 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 18:05:34,056 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 18:05:34,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 18:05:34,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 18:05:34,064 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 18:05:34,065 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 18:05:34,089 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 18:05:34,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 18:05:34,090 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 18:05:34,090 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 18:05:34,091 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 18:05:34,091 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 18:05:34,092 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 18:05:34,092 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 18:05:34,092 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 18:05:34,092 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 18:05:34,093 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 18:05:34,093 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 18:05:34,093 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 18:05:34,093 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 18:05:34,093 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 18:05:34,093 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 18:05:34,095 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 18:05:34,095 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 18:05:34,095 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 18:05:34,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 18:05:34,096 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 18:05:34,097 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 18:05:34,097 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 18:05:34,146 INFO ]: Repository-Root is: /tmp [2018-06-25 18:05:34,166 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 18:05:34,170 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 18:05:34,171 INFO ]: Initializing SmtParser... [2018-06-25 18:05:34,172 INFO ]: SmtParser initialized [2018-06-25 18:05:34,172 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 [2018-06-25 18:05:34,174 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 [2018-06-25 18:05:34,303 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 unknown [2018-06-25 18:05:34,600 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 [2018-06-25 18:05:34,605 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 18:05:34,610 INFO ]: Walking toolchain with 4 elements. [2018-06-25 18:05:34,611 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 18:05:34,611 INFO ]: Initializing ChcToBoogie... [2018-06-25 18:05:34,611 INFO ]: ChcToBoogie initialized [2018-06-25 18:05:34,614 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,699 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34 Unit [2018-06-25 18:05:34,701 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 18:05:34,702 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 18:05:34,702 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 18:05:34,702 INFO ]: Boogie Preprocessor initialized [2018-06-25 18:05:34,724 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,724 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,731 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,731 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,737 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,739 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,740 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (1/1) ... [2018-06-25 18:05:34,742 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 18:05:34,743 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 18:05:34,743 INFO ]: Initializing RCFGBuilder... [2018-06-25 18:05:34,743 INFO ]: RCFGBuilder initialized [2018-06-25 18:05:34,744 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (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) [2018-06-25 18:05:34,762 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 18:05:34,762 INFO ]: Found specification of procedure gotoProc [2018-06-25 18:05:34,762 INFO ]: Found implementation of procedure gotoProc [2018-06-25 18:05:34,762 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 18:05:34,762 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 18:05:34,762 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 [2018-06-25 18:05:35,073 INFO ]: Using library mode [2018-06-25 18:05:35,074 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 06:05:35 BoogieIcfgContainer [2018-06-25 18:05:35,074 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 18:05:35,075 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 18:05:35,075 INFO ]: Initializing TraceAbstraction... [2018-06-25 18:05:35,086 INFO ]: TraceAbstraction initialized [2018-06-25 18:05:35,086 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 06:05:34" (1/3) ... [2018-06-25 18:05:35,087 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af81fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 06:05:35, skipping insertion in model container [2018-06-25 18:05:35,087 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 06:05:34" (2/3) ... [2018-06-25 18:05:35,087 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44af81fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 06:05:35, skipping insertion in model container [2018-06-25 18:05:35,088 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 06:05:35" (3/3) ... [2018-06-25 18:05:35,089 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 18:05:35,108 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 18:05:35,124 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 18:05:35,178 INFO ]: Using default assertion order modulation [2018-06-25 18:05:35,191 INFO ]: Interprodecural is true [2018-06-25 18:05:35,191 INFO ]: Hoare is false [2018-06-25 18:05:35,191 INFO ]: Compute interpolants for FPandBP [2018-06-25 18:05:35,191 INFO ]: Backedges is TWOTRACK [2018-06-25 18:05:35,191 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 18:05:35,191 INFO ]: Difference is false [2018-06-25 18:05:35,191 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 18:05:35,191 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 18:05:35,206 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 18:05:35,238 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 18:05:35,239 INFO ]: Found error trace [2018-06-25 18:05:35,242 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 18:05:35,242 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 18:05:35,248 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 18:05:35,251 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 18:05:35,251 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 18:05:35,309 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 18:05:35,329 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 18:05:35,329 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 18:05:35,421 INFO ]: Conjunction of SSA is unsat [2018-06-25 18:05:35,603 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 18:05:35,606 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 18:05:35,606 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 18:05:35,613 INFO ]: Interpolant automaton has 3 states [2018-06-25 18:05:35,630 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 18:05:35,630 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 18:05:35,635 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 18:05:35,718 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 18:05:35,718 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 18:05:35,723 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 18:05:35,725 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 18:05:35,725 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 18:05:35,749 INFO ]: With dead ends: 9 [2018-06-25 18:05:35,749 INFO ]: Without dead ends: 9 [2018-06-25 18:05:35,760 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 [2018-06-25 18:05:35,793 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 18:05:35,833 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 18:05:35,862 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 18:05:35,862 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 18:05:35,868 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 18:05:35,868 INFO ]: Finished accepts. word is rejected. [2018-06-25 18:05:35,868 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 18:05:35,868 INFO ]: Interpolant automaton has 3 states. [2018-06-25 18:05:35,868 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 18:05:35,868 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 18:05:35,868 INFO ]: Found error trace [2018-06-25 18:05:35,869 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 18:05:35,869 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 18:05:35,869 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 18:05:35,869 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 18:05:35,869 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 18:05:35,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 18:05:35,870 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 18:05:35,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 18:05:35,964 INFO ]: Conjunction of SSA is unsat [2018-06-25 18:05:36,391 WARN ]: Spent 304.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-06-25 18:05:36,468 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 18:05:36,468 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 18:05:36,468 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 [2018-06-25 18:05:36,493 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 18:05:36,583 INFO ]: Conjunction of SSA is unsat [2018-06-25 18:05:36,605 INFO ]: Computing forward predicates... [2018-06-25 18:05:36,929 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 18:05:36,957 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 18:05:36,957 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2] total 5 [2018-06-25 18:05:36,958 INFO ]: Interpolant automaton has 5 states [2018-06-25 18:05:36,958 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 18:05:36,958 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 18:05:36,958 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-25 18:05:37,001 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 18:05:37,001 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 18:05:37,002 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 18:05:37,002 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 18:05:37,002 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 18:05:37,002 INFO ]: With dead ends: 9 [2018-06-25 18:05:37,002 INFO ]: Without dead ends: 0 [2018-06-25 18:05:37,003 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 18:05:37,003 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 18:05:37,003 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 18:05:37,003 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 18:05:37,003 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 18:05:37,004 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-25 18:05:37,004 INFO ]: Finished accepts. word is rejected. [2018-06-25 18:05:37,004 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 18:05:37,004 INFO ]: Interpolant automaton has 5 states. [2018-06-25 18:05:37,004 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 18:05:37,004 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 18:05:37,008 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 06:05:37 BoogieIcfgContainer [2018-06-25 18:05:37,008 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 18:05:37,009 INFO ]: Toolchain (without parser) took 2403.94 ms. Allocated memory is still 310.4 MB. Free memory was 264.9 MB in the beginning and 208.3 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 3.6 GB. [2018-06-25 18:05:37,010 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 310.4 MB. Free memory is still 276.0 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 18:05:37,011 INFO ]: ChcToBoogie took 90.46 ms. Allocated memory is still 310.4 MB. Free memory was 264.9 MB in the beginning and 262.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 18:05:37,011 INFO ]: Boogie Preprocessor took 40.67 ms. Allocated memory is still 310.4 MB. Free memory was 262.9 MB in the beginning and 260.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 18:05:37,012 INFO ]: RCFGBuilder took 331.36 ms. Allocated memory is still 310.4 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-25 18:05:37,012 INFO ]: TraceAbstraction took 1933.12 ms. Allocated memory is still 310.4 MB. Free memory was 249.9 MB in the beginning and 208.3 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 3.6 GB. [2018-06-25 18:05:37,016 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 310.4 MB. Free memory is still 276.0 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 90.46 ms. Allocated memory is still 310.4 MB. Free memory was 264.9 MB in the beginning and 262.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 40.67 ms. Allocated memory is still 310.4 MB. Free memory was 262.9 MB in the beginning and 260.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 331.36 ms. Allocated memory is still 310.4 MB. Free memory was 260.9 MB in the beginning and 250.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1933.12 ms. Allocated memory is still 310.4 MB. Free memory was 249.9 MB in the beginning and 208.3 MB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 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, 10 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 0 SDslu, 13 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 3 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/two_counters_e3_325.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_18-05-37-028.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/two_counters_e3_325.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_18-05-37-028.csv Received shutdown request...