java -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/chccomp2018/chcToBoogie_automizer.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-55b8104 [2018-06-18 13:53:54,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-18 13:53:54,093 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-18 13:53:54,109 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-18 13:53:54,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-18 13:53:54,113 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-18 13:53:54,114 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-18 13:53:54,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-18 13:53:54,119 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-18 13:53:54,121 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-18 13:53:54,122 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-18 13:53:54,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-18 13:53:54,123 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-18 13:53:54,125 INFO L177 SettingsManager]: ChcToBoogie provides no preferences, ignoring... [2018-06-18 13:53:54,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-18 13:53:54,130 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-18 13:53:54,131 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-18 13:53:54,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-18 13:53:54,146 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-18 13:53:54,147 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-18 13:53:54,148 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-18 13:53:54,150 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-18 13:53:54,151 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-18 13:53:54,152 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-18 13:53:54,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-18 13:53:54,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-18 13:53:54,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-18 13:53:54,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-18 13:53:54,157 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-18 13:53:54,157 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-18 13:53:54,158 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-18 13:53:54,158 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-18 13:53:54,159 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-18 13:53:54,159 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-18 13:53:54,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-18 13:53:54,161 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chccomp2018/chcToBoogie_automizer.epf [2018-06-18 13:53:54,178 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-18 13:53:54,178 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-18 13:53:54,179 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-18 13:53:54,179 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-18 13:53:54,180 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-18 13:53:54,180 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-18 13:53:54,181 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-18 13:53:54,181 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-18 13:53:54,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-18 13:53:54,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-18 13:53:54,181 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-18 13:53:54,182 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-18 13:53:54,182 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-18 13:53:54,182 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-18 13:53:54,182 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-18 13:53:54,182 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-18 13:53:54,183 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-18 13:53:54,184 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-18 13:53:54,184 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-18 13:53:54,237 INFO ]: Repository-Root is: /tmp [2018-06-18 13:53:54,257 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-18 13:53:54,264 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-18 13:53:54,266 INFO ]: Initializing SmtParser... [2018-06-18 13:53:54,266 INFO ]: SmtParser initialized [2018-06-18 13:53:54,267 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 [2018-06-18 13:53:54,268 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 [2018-06-18 13:53:54,433 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 unknown [2018-06-18 13:53:54,796 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 [2018-06-18 13:53:54,801 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-18 13:53:54,813 INFO ]: Walking toolchain with 4 elements. [2018-06-18 13:53:54,813 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-18 13:53:54,813 INFO ]: Initializing ChcToBoogie... [2018-06-18 13:53:54,813 INFO ]: ChcToBoogie initialized [2018-06-18 13:53:54,821 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,908 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54 Unit [2018-06-18 13:53:54,908 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-18 13:53:54,909 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-18 13:53:54,909 INFO ]: Initializing Boogie Preprocessor... [2018-06-18 13:53:54,909 INFO ]: Boogie Preprocessor initialized [2018-06-18 13:53:54,934 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,934 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,945 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,946 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,959 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,961 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,962 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (1/1) ... [2018-06-18 13:53:54,977 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-18 13:53:54,978 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-18 13:53:54,978 INFO ]: Initializing RCFGBuilder... [2018-06-18 13:53:54,978 INFO ]: RCFGBuilder initialized [2018-06-18 13:53:54,979 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (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) [2018-06-18 13:53:55,001 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-18 13:53:55,001 INFO ]: Found specification of procedure False [2018-06-18 13:53:55,001 INFO ]: Found implementation of procedure False [2018-06-18 13:53:55,001 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-18 13:53:55,001 INFO ]: Found specification of procedure state [2018-06-18 13:53:55,001 INFO ]: Found implementation of procedure state [2018-06-18 13:53:55,001 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-18 13:53:55,001 INFO ]: Found specification of procedure Ultimate.START [2018-06-18 13:53:55,001 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 [2018-06-18 13:53:55,455 INFO ]: Using library mode [2018-06-18 13:53:55,456 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 01:53:55 BoogieIcfgContainer [2018-06-18 13:53:55,456 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-18 13:53:55,458 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-18 13:53:55,458 INFO ]: Initializing TraceAbstraction... [2018-06-18 13:53:55,465 INFO ]: TraceAbstraction initialized [2018-06-18 13:53:55,465 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 18.06 01:53:54" (1/3) ... [2018-06-18 13:53:55,466 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c8a6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 18.06 01:53:55, skipping insertion in model container [2018-06-18 13:53:55,466 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 18.06 01:53:54" (2/3) ... [2018-06-18 13:53:55,467 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c8a6bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.06 01:53:55, skipping insertion in model container [2018-06-18 13:53:55,467 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.06 01:53:55" (3/3) ... [2018-06-18 13:53:55,469 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-18 13:53:55,477 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-18 13:53:55,485 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-18 13:53:55,528 INFO ]: Using default assertion order modulation [2018-06-18 13:53:55,529 INFO ]: Interprodecural is true [2018-06-18 13:53:55,529 INFO ]: Hoare is false [2018-06-18 13:53:55,529 INFO ]: Compute interpolants for FPandBP [2018-06-18 13:53:55,529 INFO ]: Backedges is TWOTRACK [2018-06-18 13:53:55,529 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-18 13:53:55,529 INFO ]: Difference is false [2018-06-18 13:53:55,529 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-18 13:53:55,529 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-18 13:53:55,559 INFO ]: Start isEmpty. Operand 13 states. [2018-06-18 13:53:55,575 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-18 13:53:55,575 INFO ]: Found error trace [2018-06-18 13:53:55,576 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:53:55,578 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:53:55,584 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-18 13:53:55,586 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:53:55,587 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:53:55,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:53:55,638 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:53:55,638 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:53:55,730 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:53:55,740 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:53:56,076 WARN ]: Spent 162.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 5 [2018-06-18 13:53:56,078 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-18 13:53:56,080 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-18 13:53:56,080 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-18 13:53:56,082 INFO ]: Interpolant automaton has 4 states [2018-06-18 13:53:56,093 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-18 13:53:56,094 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 13:53:56,096 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-18 13:53:56,278 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:53:56,278 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-18 13:53:56,280 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-18 13:53:56,282 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-18 13:53:56,282 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:53:56,306 INFO ]: With dead ends: 13 [2018-06-18 13:53:56,306 INFO ]: Without dead ends: 13 [2018-06-18 13:53:56,309 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-18 13:53:56,330 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-18 13:53:56,388 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-18 13:53:56,395 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-18 13:53:56,396 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-18 13:53:56,403 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-18 13:53:56,403 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:53:56,403 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-18 13:53:56,403 INFO ]: Interpolant automaton has 4 states. [2018-06-18 13:53:56,403 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-18 13:53:56,405 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-18 13:53:56,405 INFO ]: Found error trace [2018-06-18 13:53:56,405 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-18 13:53:56,405 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-18 13:53:56,405 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-18 13:53:56,405 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-18 13:53:56,405 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-18 13:53:56,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:53:56,406 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:53:56,406 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-18 13:53:56,505 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:53:56,506 WARN ]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-06-18 13:53:57,306 WARN ]: Spent 655.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-06-18 13:53:57,608 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 13:53:57,608 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-18 13:53:57,608 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 [2018-06-18 13:53:57,626 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-18 13:53:57,744 INFO ]: Conjunction of SSA is unsat [2018-06-18 13:53:57,754 INFO ]: Computing forward predicates... [2018-06-18 13:53:58,166 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-18 13:53:58,207 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-18 13:53:58,207 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-18 13:53:58,208 INFO ]: Interpolant automaton has 8 states [2018-06-18 13:53:58,208 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-18 13:53:58,208 INFO ]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-06-18 13:53:58,208 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-18 13:53:58,778 WARN ]: Spent 337.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2018-06-18 13:53:58,972 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-18 13:53:58,972 INFO ]: Finished difference Result 9 states and 10 transitions. [2018-06-18 13:53:58,973 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-18 13:53:58,973 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-18 13:53:58,973 INFO ]: Finished accepts. some prefix is accepted. [2018-06-18 13:53:58,973 INFO ]: With dead ends: 9 [2018-06-18 13:53:58,973 INFO ]: Without dead ends: 0 [2018-06-18 13:53:58,974 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-06-18 13:53:58,974 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-18 13:53:58,974 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-18 13:53:58,974 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-18 13:53:58,974 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-18 13:53:58,974 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-18 13:53:58,974 INFO ]: Finished accepts. word is rejected. [2018-06-18 13:53:58,974 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-18 13:53:58,974 INFO ]: Interpolant automaton has 8 states. [2018-06-18 13:53:58,974 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-18 13:53:58,974 INFO ]: Finished isEmpty. No accepting run. [2018-06-18 13:53:58,982 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.06 01:53:58 BoogieIcfgContainer [2018-06-18 13:53:58,982 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-18 13:53:58,984 INFO ]: Toolchain (without parser) took 4182.17 ms. Allocated memory is still 303.6 MB. Free memory was 253.1 MB in the beginning and 237.7 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 3.6 GB. [2018-06-18 13:53:58,985 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.6 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 13:53:58,985 INFO ]: ChcToBoogie took 94.87 ms. Allocated memory is still 303.6 MB. Free memory was 252.1 MB in the beginning and 249.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-18 13:53:58,986 INFO ]: Boogie Preprocessor took 68.73 ms. Allocated memory is still 303.6 MB. Free memory was 249.1 MB in the beginning and 248.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-18 13:53:58,986 INFO ]: RCFGBuilder took 478.25 ms. Allocated memory is still 303.6 MB. Free memory was 248.1 MB in the beginning and 232.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 3.6 GB. [2018-06-18 13:53:58,990 INFO ]: TraceAbstraction took 3524.63 ms. Allocated memory is still 303.6 MB. Free memory was 232.0 MB in the beginning and 237.7 MB in the end (delta: -5.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-18 13:53:58,992 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 303.6 MB. Free memory is still 269.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.87 ms. Allocated memory is still 303.6 MB. Free memory was 252.1 MB in the beginning and 249.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 68.73 ms. Allocated memory is still 303.6 MB. Free memory was 249.1 MB in the beginning and 248.1 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 478.25 ms. Allocated memory is still 303.6 MB. Free memory was 248.1 MB in the beginning and 232.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3524.63 ms. Allocated memory is still 303.6 MB. Free memory was 232.0 MB in the beginning and 237.7 MB in the end (delta: -5.7 MB). There was no memory consumed. 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, 3.4s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 4 SDslu, 29 SDs, 0 SdLazy, 21 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 SizeOfPredicates, 12 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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/car_3_e2_695.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-18_13-53-59-010.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_3_e2_695.smt2_chcToBoogie_automizer.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-18_13-53-59-010.csv Received shutdown request...