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_e2_695.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 15:52:53,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 15:52:53,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 15:52:53,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 15:52:53,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 15:52:53,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 15:52:53,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 15:52:53,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 15:52:53,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 15:52:53,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 15:52:53,785 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 15:52:53,785 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 15:52:53,786 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 15:52:53,787 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 15:52:53,790 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 15:52:53,791 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 15:52:53,792 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 15:52:53,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 15:52:53,803 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 15:52:53,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 15:52:53,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 15:52:53,810 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 15:52:53,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 15:52:53,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 15:52:53,811 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 15:52:53,811 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 15:52:53,812 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 15:52:53,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 15:52:53,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 15:52:53,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 15:52:53,816 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 15:52:53,817 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 15:52:53,817 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 15:52:53,818 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 15:52:53,823 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 15:52:53,823 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 15:52:53,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 15:52:53,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 15:52:53,844 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 15:52:53,844 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 15:52:53,845 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 15:52:53,846 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 15:52:53,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 15:52:53,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 15:52:53,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 15:52:53,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 15:52:53,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 15:52:53,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 15:52:53,847 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 15:52:53,847 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 15:52:53,847 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 15:52:53,848 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 15:52:53,850 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 15:52:53,851 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 15:52:53,851 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 15:52:53,852 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 15:52:53,852 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 15:52:53,894 INFO ]: Repository-Root is: /tmp [2018-06-22 15:52:53,906 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 15:52:53,910 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 15:52:53,911 INFO ]: Initializing SmtParser... [2018-06-22 15:52:53,912 INFO ]: SmtParser initialized [2018-06-22 15:52:53,912 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 [2018-06-22 15:52:53,913 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 15:52:54,000 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 unknown [2018-06-22 15:52:54,384 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_3_e2_695.smt2 [2018-06-22 15:52:54,388 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 15:52:54,394 INFO ]: Walking toolchain with 4 elements. [2018-06-22 15:52:54,395 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 15:52:54,395 INFO ]: Initializing ChcToBoogie... [2018-06-22 15:52:54,395 INFO ]: ChcToBoogie initialized [2018-06-22 15:52:54,398 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,447 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54 Unit [2018-06-22 15:52:54,447 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 15:52:54,448 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 15:52:54,448 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 15:52:54,448 INFO ]: Boogie Preprocessor initialized [2018-06-22 15:52:54,471 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,471 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,481 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,482 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,498 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,499 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,500 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (1/1) ... [2018-06-22 15:52:54,503 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 15:52:54,503 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 15:52:54,503 INFO ]: Initializing RCFGBuilder... [2018-06-22 15:52:54,503 INFO ]: RCFGBuilder initialized [2018-06-22 15:52:54,504 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (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) [2018-06-22 15:52:54,515 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 15:52:54,515 INFO ]: Found specification of procedure False [2018-06-22 15:52:54,515 INFO ]: Found implementation of procedure False [2018-06-22 15:52:54,515 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 15:52:54,515 INFO ]: Found specification of procedure state [2018-06-22 15:52:54,515 INFO ]: Found implementation of procedure state [2018-06-22 15:52:54,515 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 15:52:54,515 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 15:52:54,515 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 15:52:54,852 INFO ]: Using library mode [2018-06-22 15:52:54,853 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:52:54 BoogieIcfgContainer [2018-06-22 15:52:54,853 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 15:52:54,854 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 15:52:54,854 INFO ]: Initializing TraceAbstraction... [2018-06-22 15:52:54,857 INFO ]: TraceAbstraction initialized [2018-06-22 15:52:54,863 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 03:52:54" (1/3) ... [2018-06-22 15:52:54,864 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2581af86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 03:52:54, skipping insertion in model container [2018-06-22 15:52:54,864 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 03:52:54" (2/3) ... [2018-06-22 15:52:54,864 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2581af86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 03:52:54, skipping insertion in model container [2018-06-22 15:52:54,864 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 03:52:54" (3/3) ... [2018-06-22 15:52:54,866 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 15:52:54,885 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 15:52:54,893 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 15:52:54,925 INFO ]: Using default assertion order modulation [2018-06-22 15:52:54,925 INFO ]: Interprodecural is true [2018-06-22 15:52:54,925 INFO ]: Hoare is false [2018-06-22 15:52:54,925 INFO ]: Compute interpolants for FPandBP [2018-06-22 15:52:54,925 INFO ]: Backedges is TWOTRACK [2018-06-22 15:52:54,925 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 15:52:54,925 INFO ]: Difference is false [2018-06-22 15:52:54,925 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 15:52:54,925 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 15:52:54,941 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 15:52:54,958 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 15:52:54,958 INFO ]: Found error trace [2018-06-22 15:52:54,960 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:52:54,961 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:52:54,967 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 15:52:54,969 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:52:54,970 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:52:55,005 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:52:55,005 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:52:55,005 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:52:55,081 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:52:55,296 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 15:52:55,299 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 15:52:55,299 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 15:52:55,301 INFO ]: Interpolant automaton has 4 states [2018-06-22 15:52:55,313 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 15:52:55,313 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:52:55,315 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 15:52:55,410 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:52:55,410 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 15:52:55,411 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 15:52:55,412 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 15:52:55,413 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:52:55,423 INFO ]: With dead ends: 13 [2018-06-22 15:52:55,423 INFO ]: Without dead ends: 13 [2018-06-22 15:52:55,424 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 15:52:55,437 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 15:52:55,476 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 15:52:55,477 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 15:52:55,478 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 15:52:55,479 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 15:52:55,480 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:52:55,480 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 15:52:55,480 INFO ]: Interpolant automaton has 4 states. [2018-06-22 15:52:55,480 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 15:52:55,481 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 15:52:55,481 INFO ]: Found error trace [2018-06-22 15:52:55,481 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 15:52:55,481 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 15:52:55,481 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 15:52:55,481 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 15:52:55,481 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 15:52:55,483 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:52:55,483 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:52:55,483 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 15:52:55,551 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:52:55,964 WARN ]: Spent 286.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2018-06-22 15:52:56,315 WARN ]: Spent 176.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-06-22 15:52:56,318 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:52:56,318 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 15:52:56,318 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 15:52:56,352 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 15:52:56,427 INFO ]: Conjunction of SSA is unsat [2018-06-22 15:52:56,435 INFO ]: Computing forward predicates... [2018-06-22 15:52:57,020 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 15:52:57,054 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 15:52:57,055 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 15:52:57,055 INFO ]: Interpolant automaton has 9 states [2018-06-22 15:52:57,055 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 15:52:57,055 INFO ]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-06-22 15:52:57,056 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 15:52:57,357 WARN ]: Spent 198.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2018-06-22 15:52:57,563 WARN ]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-06-22 15:52:57,660 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 15:52:57,660 INFO ]: Finished difference Result 9 states and 10 transitions. [2018-06-22 15:52:57,661 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 15:52:57,661 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 15:52:57,661 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 15:52:57,661 INFO ]: With dead ends: 9 [2018-06-22 15:52:57,661 INFO ]: Without dead ends: 0 [2018-06-22 15:52:57,662 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2018-06-22 15:52:57,662 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 15:52:57,662 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 15:52:57,662 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 15:52:57,662 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 15:52:57,663 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-22 15:52:57,663 INFO ]: Finished accepts. word is rejected. [2018-06-22 15:52:57,663 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 15:52:57,663 INFO ]: Interpolant automaton has 9 states. [2018-06-22 15:52:57,663 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 15:52:57,663 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 15:52:57,667 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 03:52:57 BoogieIcfgContainer [2018-06-22 15:52:57,667 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 15:52:57,668 INFO ]: Toolchain (without parser) took 3279.17 ms. Allocated memory was 304.6 MB in the beginning and 325.1 MB in the end (delta: 20.4 MB). Free memory was 251.0 MB in the beginning and 255.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 3.6 GB. [2018-06-22 15:52:57,669 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 304.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 15:52:57,669 INFO ]: ChcToBoogie took 52.94 ms. Allocated memory is still 304.6 MB. Free memory was 251.0 MB in the beginning and 249.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:52:57,670 INFO ]: Boogie Preprocessor took 54.66 ms. Allocated memory is still 304.6 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:52:57,670 INFO ]: RCFGBuilder took 349.63 ms. Allocated memory is still 304.6 MB. Free memory was 247.0 MB in the beginning and 232.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 3.6 GB. [2018-06-22 15:52:57,671 INFO ]: TraceAbstraction took 2812.79 ms. Allocated memory was 304.6 MB in the beginning and 325.1 MB in the end (delta: 20.4 MB). Free memory was 231.0 MB in the beginning and 255.8 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 15:52:57,673 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 304.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 52.94 ms. Allocated memory is still 304.6 MB. Free memory was 251.0 MB in the beginning and 249.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.66 ms. Allocated memory is still 304.6 MB. Free memory was 249.0 MB in the beginning and 247.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 349.63 ms. Allocated memory is still 304.6 MB. Free memory was 247.0 MB in the beginning and 232.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2812.79 ms. Allocated memory was 304.6 MB in the beginning and 325.1 MB in the end (delta: 20.4 MB). Free memory was 231.0 MB in the beginning and 255.8 MB in the end (delta: -24.8 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, 2.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 4 SDslu, 32 SDs, 0 SdLazy, 26 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 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, 1.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1180 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_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_15-52-57-683.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_3_e2_695.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_15-52-57-683.csv Received shutdown request...