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/car_2.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 13:49:10,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 13:49:10,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 13:49:10,033 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 13:49:10,034 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 13:49:10,035 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 13:49:10,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 13:49:10,037 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 13:49:10,043 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 13:49:10,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 13:49:10,046 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 13:49:10,046 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 13:49:10,047 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 13:49:10,048 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 13:49:10,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 13:49:10,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 13:49:10,053 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 13:49:10,055 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 13:49:10,057 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 13:49:10,058 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 13:49:10,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 13:49:10,061 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 13:49:10,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 13:49:10,062 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 13:49:10,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 13:49:10,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 13:49:10,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 13:49:10,065 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 13:49:10,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 13:49:10,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 13:49:10,067 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 13:49:10,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 13:49:10,068 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 13:49:10,068 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 13:49:10,069 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 13:49:10,069 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 13:49:10,083 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 13:49:10,083 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 13:49:10,083 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 13:49:10,084 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 13:49:10,085 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 13:49:10,085 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 13:49:10,085 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 13:49:10,085 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 13:49:10,085 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 13:49:10,086 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 13:49:10,086 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 13:49:10,086 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 13:49:10,086 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 13:49:10,086 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 13:49:10,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 13:49:10,088 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 13:49:10,089 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 13:49:10,089 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 13:49:10,127 INFO ]: Repository-Root is: /tmp [2018-06-25 13:49:10,147 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 13:49:10,155 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 13:49:10,157 INFO ]: Initializing SmtParser... [2018-06-25 13:49:10,157 INFO ]: SmtParser initialized [2018-06-25 13:49:10,158 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_2.smt2 [2018-06-25 13:49:10,159 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 13:49:10,254 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_2.smt2 unknown [2018-06-25 13:49:10,547 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_2.smt2 [2018-06-25 13:49:10,551 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 13:49:10,558 INFO ]: Walking toolchain with 4 elements. [2018-06-25 13:49:10,559 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 13:49:10,559 INFO ]: Initializing ChcToBoogie... [2018-06-25 13:49:10,559 INFO ]: ChcToBoogie initialized [2018-06-25 13:49:10,562 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,623 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10 Unit [2018-06-25 13:49:10,623 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 13:49:10,623 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 13:49:10,623 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 13:49:10,623 INFO ]: Boogie Preprocessor initialized [2018-06-25 13:49:10,639 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,639 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,645 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,645 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,650 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,651 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,653 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (1/1) ... [2018-06-25 13:49:10,655 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 13:49:10,656 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 13:49:10,656 INFO ]: Initializing RCFGBuilder... [2018-06-25 13:49:10,656 INFO ]: RCFGBuilder initialized [2018-06-25 13:49:10,657 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 13:49:10,669 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 13:49:10,670 INFO ]: Found specification of procedure gotoProc [2018-06-25 13:49:10,670 INFO ]: Found implementation of procedure gotoProc [2018-06-25 13:49:10,670 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 13:49:10,670 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 13:49:10,670 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 13:49:11,021 INFO ]: Using library mode [2018-06-25 13:49:11,022 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:49:11 BoogieIcfgContainer [2018-06-25 13:49:11,022 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 13:49:11,023 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 13:49:11,023 INFO ]: Initializing TraceAbstraction... [2018-06-25 13:49:11,026 INFO ]: TraceAbstraction initialized [2018-06-25 13:49:11,027 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:49:10" (1/3) ... [2018-06-25 13:49:11,027 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ef23a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 01:49:11, skipping insertion in model container [2018-06-25 13:49:11,028 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:49:10" (2/3) ... [2018-06-25 13:49:11,035 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ef23a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 01:49:11, skipping insertion in model container [2018-06-25 13:49:11,035 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:49:11" (3/3) ... [2018-06-25 13:49:11,037 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 13:49:11,052 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 13:49:11,061 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 13:49:11,111 INFO ]: Using default assertion order modulation [2018-06-25 13:49:11,112 INFO ]: Interprodecural is true [2018-06-25 13:49:11,112 INFO ]: Hoare is false [2018-06-25 13:49:11,112 INFO ]: Compute interpolants for FPandBP [2018-06-25 13:49:11,112 INFO ]: Backedges is TWOTRACK [2018-06-25 13:49:11,112 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 13:49:11,112 INFO ]: Difference is false [2018-06-25 13:49:11,112 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 13:49:11,112 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 13:49:11,129 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 13:49:11,143 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 13:49:11,143 INFO ]: Found error trace [2018-06-25 13:49:11,146 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 13:49:11,146 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 13:49:11,151 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 13:49:11,152 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 13:49:11,153 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 13:49:11,187 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 13:49:11,187 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 13:49:11,187 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 13:49:11,257 INFO ]: Conjunction of SSA is unsat [2018-06-25 13:49:11,539 WARN ]: Spent 139.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2018-06-25 13:49:11,541 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 13:49:11,543 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 13:49:11,543 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 13:49:11,544 INFO ]: Interpolant automaton has 3 states [2018-06-25 13:49:11,558 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 13:49:11,558 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 13:49:11,560 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 13:49:11,613 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 13:49:11,613 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 13:49:11,614 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 13:49:11,615 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 13:49:11,615 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 13:49:11,621 INFO ]: With dead ends: 9 [2018-06-25 13:49:11,621 INFO ]: Without dead ends: 9 [2018-06-25 13:49:11,622 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 13:49:11,635 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 13:49:11,667 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 13:49:11,668 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 13:49:11,669 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 13:49:11,670 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 13:49:11,670 INFO ]: Finished accepts. word is rejected. [2018-06-25 13:49:11,670 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 13:49:11,670 INFO ]: Interpolant automaton has 3 states. [2018-06-25 13:49:11,670 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 13:49:11,670 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 13:49:11,670 INFO ]: Found error trace [2018-06-25 13:49:11,670 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 13:49:11,671 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 13:49:11,671 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 13:49:11,671 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 13:49:11,671 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 13:49:11,672 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 13:49:11,672 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 13:49:11,677 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 13:49:11,772 INFO ]: Conjunction of SSA is unsat [2018-06-25 13:49:12,066 WARN ]: Spent 115.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-06-25 13:49:12,067 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 13:49:12,067 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 13:49:12,067 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 13:49:12,076 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 13:49:12,195 INFO ]: Conjunction of SSA is unsat [2018-06-25 13:49:12,207 INFO ]: Computing forward predicates... [2018-06-25 13:49:13,462 WARN ]: Spent 583.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2018-06-25 13:49:13,480 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 13:49:13,503 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 13:49:13,503 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 13:49:13,506 INFO ]: Interpolant automaton has 6 states [2018-06-25 13:49:13,506 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 13:49:13,506 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-25 13:49:13,507 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 13:49:13,611 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 13:49:13,612 INFO ]: Finished difference Result 5 states and 5 transitions. [2018-06-25 13:49:13,612 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 13:49:13,612 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 13:49:13,612 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 13:49:13,612 INFO ]: With dead ends: 5 [2018-06-25 13:49:13,612 INFO ]: Without dead ends: 0 [2018-06-25 13:49:13,613 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-06-25 13:49:13,613 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 13:49:13,613 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 13:49:13,613 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 13:49:13,613 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 13:49:13,613 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-25 13:49:13,613 INFO ]: Finished accepts. word is rejected. [2018-06-25 13:49:13,613 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 13:49:13,613 INFO ]: Interpolant automaton has 6 states. [2018-06-25 13:49:13,613 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 13:49:13,613 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 13:49:13,618 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:49:13 BoogieIcfgContainer [2018-06-25 13:49:13,618 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 13:49:13,619 INFO ]: Toolchain (without parser) took 3066.60 ms. Allocated memory was 300.9 MB in the beginning and 326.6 MB in the end (delta: 25.7 MB). Free memory was 249.3 MB in the beginning and 241.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 3.6 GB. [2018-06-25 13:49:13,620 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 300.9 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 13:49:13,625 INFO ]: ChcToBoogie took 64.43 ms. Allocated memory is still 300.9 MB. Free memory was 249.3 MB in the beginning and 246.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 13:49:13,625 INFO ]: Boogie Preprocessor took 32.05 ms. Allocated memory is still 300.9 MB. Free memory was 246.3 MB in the beginning and 245.3 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-25 13:49:13,626 INFO ]: RCFGBuilder took 366.13 ms. Allocated memory is still 300.9 MB. Free memory was 245.3 MB in the beginning and 225.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-25 13:49:13,626 INFO ]: TraceAbstraction took 2594.42 ms. Allocated memory was 300.9 MB in the beginning and 326.6 MB in the end (delta: 25.7 MB). Free memory was 225.4 MB in the beginning and 241.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 3.6 GB. [2018-06-25 13:49:13,629 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 300.9 MB. Free memory is still 266.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.43 ms. Allocated memory is still 300.9 MB. Free memory was 249.3 MB in the beginning and 246.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 32.05 ms. Allocated memory is still 300.9 MB. Free memory was 246.3 MB in the beginning and 245.3 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 366.13 ms. Allocated memory is still 300.9 MB. Free memory was 245.3 MB in the beginning and 225.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2594.42 ms. Allocated memory was 300.9 MB in the beginning and 326.6 MB in the end (delta: 25.7 MB). Free memory was 225.4 MB in the beginning and 241.8 MB in the end (delta: -16.5 MB). Peak memory consumption was 9.2 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, 2.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s 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, 1.8s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 10 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 26 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/car_2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_13-49-13-647.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_13-49-13-647.csv Received shutdown request...