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/car_3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 15:53:32,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 15:53:32,357 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 15:53:32,372 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 15:53:32,372 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 15:53:32,373 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 15:53:32,374 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 15:53:32,377 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 15:53:32,378 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 15:53:32,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 15:53:32,381 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 15:53:32,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 15:53:32,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 15:53:32,383 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 15:53:32,386 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 15:53:32,387 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 15:53:32,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 15:53:32,397 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 15:53:32,398 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 15:53:32,399 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 15:53:32,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 15:53:32,405 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 15:53:32,406 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 15:53:32,406 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 15:53:32,407 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 15:53:32,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 15:53:32,411 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 15:53:32,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 15:53:32,412 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 15:53:32,416 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 15:53:32,417 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 15:53:32,417 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 15:53:32,418 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 15:53:32,418 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 15:53:32,419 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 15:53:32,419 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 15:53:32,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 15:53:32,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 15:53:32,441 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 15:53:32,441 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 15:53:32,442 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 15:53:32,442 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 15:53:32,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 15:53:32,443 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 15:53:32,444 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 15:53:32,444 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 15:53:32,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 15:53:32,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 15:53:32,444 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 15:53:32,444 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 15:53:32,445 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 15:53:32,445 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 15:53:32,445 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 15:53:32,445 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 15:53:32,445 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 15:53:32,447 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 15:53:32,447 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 15:53:32,494 INFO ]: Repository-Root is: /tmp [2018-06-22 15:53:32,510 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 15:53:32,514 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 15:53:32,516 INFO ]: Initializing SmtParser... [2018-06-22 15:53:32,516 INFO ]: SmtParser initialized [2018-06-22 15:53:32,517 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3.smt2 [2018-06-22 15:53:32,518 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 15:53:32,610 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3.smt2 unknown [2018-06-22 15:53:32,942 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3.smt2 [2018-06-22 15:53:32,946 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 15:53:32,952 INFO ]: Walking toolchain with 4 elements. [2018-06-22 15:53:32,952 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 15:53:32,952 INFO ]: Initializing ChcToBoogie... [2018-06-22 15:53:32,952 INFO ]: ChcToBoogie initialized [2018-06-22 15:53:32,956 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:53:32" (1/1) ... [2018-06-22 15:53:33,009 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33 Unit [2018-06-22 15:53:33,009 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 15:53:33,009 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 15:53:33,010 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 15:53:33,010 INFO ]: Boogie Preprocessor initialized [2018-06-22 15:53:33,032 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,032 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,041 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,041 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,053 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,055 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,065 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (1/1) ... [2018-06-22 15:53:33,067 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 15:53:33,067 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 15:53:33,067 INFO ]: Initializing RCFGBuilder... [2018-06-22 15:53:33,067 INFO ]: RCFGBuilder initialized [2018-06-22 15:53:33,068 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (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 15:53:33,086 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 15:53:33,086 INFO ]: Found specification of procedure False [2018-06-22 15:53:33,086 INFO ]: Found implementation of procedure False [2018-06-22 15:53:33,086 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 15:53:33,086 INFO ]: Found specification of procedure state [2018-06-22 15:53:33,086 INFO ]: Found implementation of procedure state [2018-06-22 15:53:33,086 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 15:53:33,086 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 15:53:33,086 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 15:53:33,456 INFO ]: Using library mode [2018-06-22 15:53:33,456 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:53:33 BoogieIcfgContainer [2018-06-22 15:53:33,456 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 15:53:33,459 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 15:53:33,459 INFO ]: Initializing TraceAbstraction... [2018-06-22 15:53:33,462 INFO ]: TraceAbstraction initialized [2018-06-22 15:53:33,462 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:53:32" (1/3) ... [2018-06-22 15:53:33,463 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a5df2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:53:33, skipping insertion in model container [2018-06-22 15:53:33,463 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:53:33" (2/3) ... [2018-06-22 15:53:33,464 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a5df2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:53:33, skipping insertion in model container [2018-06-22 15:53:33,464 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:53:33" (3/3) ... [2018-06-22 15:53:33,465 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 15:53:33,474 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 15:53:33,485 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 15:53:33,533 INFO ]: Using default assertion order modulation [2018-06-22 15:53:33,534 INFO ]: Interprodecural is true [2018-06-22 15:53:33,534 INFO ]: Hoare is false [2018-06-22 15:53:33,534 INFO ]: Compute interpolants for FPandBP [2018-06-22 15:53:33,534 INFO ]: Backedges is TWOTRACK [2018-06-22 15:53:33,534 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 15:53:33,534 INFO ]: Difference is false [2018-06-22 15:53:33,534 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 15:53:33,534 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 15:53:33,551 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 15:53:33,570 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 15:53:33,570 INFO ]: Found error trace [2018-06-22 15:53:33,571 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:53:33,571 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:53:33,577 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 15:53:33,579 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:53:33,579 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:53:33,619 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:53:33,619 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:53:33,619 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:53:33,687 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:53:33,862 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 15:53:33,863 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 15:53:33,864 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 15:53:33,865 INFO ]: Interpolant automaton has 4 states [2018-06-22 15:53:33,875 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 15:53:33,875 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:53:33,877 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 15:53:33,986 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:53:33,987 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 15:53:33,988 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 15:53:33,989 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 15:53:33,989 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:53:34,001 INFO ]: With dead ends: 13 [2018-06-22 15:53:34,001 INFO ]: Without dead ends: 13 [2018-06-22 15:53:34,004 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 15:53:34,022 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 15:53:34,044 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 15:53:34,045 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 15:53:34,046 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 15:53:34,047 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 15:53:34,047 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:53:34,047 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 15:53:34,047 INFO ]: Interpolant automaton has 4 states. [2018-06-22 15:53:34,047 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 15:53:34,048 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 15:53:34,048 INFO ]: Found error trace [2018-06-22 15:53:34,049 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:53:34,049 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:53:34,049 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 15:53:34,049 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:53:34,049 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:53:34,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:53:34,050 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:53:34,050 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:53:34,112 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:53:34,604 WARN ]: Spent 314.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2018-06-22 15:53:34,791 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:53:34,792 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:53:34,792 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 15:53:34,800 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:53:34,908 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:53:34,918 INFO ]: Computing forward predicates... [2018-06-22 15:53:35,504 WARN ]: Spent 211.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 6 [2018-06-22 15:53:35,536 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:53:35,569 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:53:35,569 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 15:53:35,570 INFO ]: Interpolant automaton has 8 states [2018-06-22 15:53:35,570 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 15:53:35,570 INFO ]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-06-22 15:53:35,570 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 15:53:35,990 WARN ]: Spent 268.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 11 [2018-06-22 15:53:36,272 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:53:36,272 INFO ]: Finished difference Result 9 states and 10 transitions. [2018-06-22 15:53:36,273 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 15:53:36,273 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 15:53:36,273 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:53:36,273 INFO ]: With dead ends: 9 [2018-06-22 15:53:36,273 INFO ]: Without dead ends: 0 [2018-06-22 15:53:36,274 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-06-22 15:53:36,274 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 15:53:36,274 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 15:53:36,274 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 15:53:36,274 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 15:53:36,274 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-22 15:53:36,274 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:53:36,274 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 15:53:36,274 INFO ]: Interpolant automaton has 8 states. [2018-06-22 15:53:36,274 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 15:53:36,274 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 15:53:36,281 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:53:36 BoogieIcfgContainer [2018-06-22 15:53:36,281 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 15:53:36,282 INFO ]: Toolchain (without parser) took 3336.09 ms. Allocated memory was 308.8 MB in the beginning and 327.7 MB in the end (delta: 18.9 MB). Free memory was 257.2 MB in the beginning and 253.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 3.6 GB. [2018-06-22 15:53:36,283 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 15:53:36,284 INFO ]: ChcToBoogie took 56.85 ms. Allocated memory is still 308.8 MB. Free memory was 257.2 MB in the beginning and 255.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:53:36,284 INFO ]: Boogie Preprocessor took 57.44 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:53:36,285 INFO ]: RCFGBuilder took 388.97 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 237.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:53:36,285 INFO ]: TraceAbstraction took 2822.31 ms. Allocated memory was 308.8 MB in the beginning and 327.7 MB in the end (delta: 18.9 MB). Free memory was 237.2 MB in the beginning and 253.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 3.6 GB. [2018-06-22 15:53:36,290 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.85 ms. Allocated memory is still 308.8 MB. Free memory was 257.2 MB in the beginning and 255.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 57.44 ms. Allocated memory is still 308.8 MB. Free memory was 255.2 MB in the beginning and 253.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 388.97 ms. Allocated memory is still 308.8 MB. Free memory was 253.2 MB in the beginning and 237.2 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2822.31 ms. Allocated memory was 308.8 MB in the beginning and 327.7 MB in the end (delta: 18.9 MB). Free memory was 237.2 MB in the beginning and 253.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 2.9 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, 2.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 4 SDslu, 32 SDs, 0 SdLazy, 26 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 964 SizeOfPredicates, 14 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 20 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.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_15-53-36-311.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_3.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_15-53-36-311.csv Received shutdown request...