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_Goto.epf -i /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 06:25:53,652 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 06:25:53,654 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 06:25:53,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 06:25:53,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 06:25:53,670 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 06:25:53,671 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 06:25:53,674 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 06:25:53,675 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 06:25:53,676 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 06:25:53,677 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 06:25:53,677 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 06:25:53,678 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 06:25:53,679 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 06:25:53,682 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 06:25:53,683 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 06:25:53,684 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 06:25:53,691 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 06:25:53,692 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 06:25:53,693 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 06:25:53,703 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 06:25:53,705 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 06:25:53,705 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 06:25:53,705 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 06:25:53,710 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 06:25:53,711 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 06:25:53,711 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 06:25:53,712 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 06:25:53,713 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 06:25:53,713 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 06:25:53,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 06:25:53,717 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 06:25:53,717 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 06:25:53,718 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 06:25:53,718 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 06:25:53,718 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 06:25:53,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 06:25:53,734 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 06:25:53,735 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 06:25:53,735 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 06:25:53,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 06:25:53,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 06:25:53,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 06:25:53,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 06:25:53,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 06:25:53,737 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 06:25:53,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 06:25:53,739 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 06:25:53,743 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 06:25:53,743 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 06:25:53,796 INFO ]: Repository-Root is: /tmp [2018-06-22 06:25:53,812 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 06:25:53,815 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 06:25:53,817 INFO ]: Initializing SmtParser... [2018-06-22 06:25:53,817 INFO ]: SmtParser initialized [2018-06-22 06:25:53,818 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all.smt2 [2018-06-22 06:25:53,819 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 06:25:53,907 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all.smt2 unknown [2018-06-22 06:25:54,258 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/car_all.smt2 [2018-06-22 06:25:54,263 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 06:25:54,268 INFO ]: Walking toolchain with 4 elements. [2018-06-22 06:25:54,268 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 06:25:54,268 INFO ]: Initializing ChcToBoogie... [2018-06-22 06:25:54,269 INFO ]: ChcToBoogie initialized [2018-06-22 06:25:54,272 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,350 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54 Unit [2018-06-22 06:25:54,350 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 06:25:54,351 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 06:25:54,351 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 06:25:54,351 INFO ]: Boogie Preprocessor initialized [2018-06-22 06:25:54,371 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,371 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,377 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,378 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,387 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,389 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,391 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (1/1) ... [2018-06-22 06:25:54,393 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 06:25:54,394 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 06:25:54,394 INFO ]: Initializing RCFGBuilder... [2018-06-22 06:25:54,394 INFO ]: RCFGBuilder initialized [2018-06-22 06:25:54,395 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (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 06:25:54,410 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 06:25:54,410 INFO ]: Found specification of procedure gotoProc [2018-06-22 06:25:54,410 INFO ]: Found implementation of procedure gotoProc [2018-06-22 06:25:54,410 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 06:25:54,410 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 06:25:54,410 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 06:25:54,763 INFO ]: Using library mode [2018-06-22 06:25:54,763 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:25:54 BoogieIcfgContainer [2018-06-22 06:25:54,764 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 06:25:54,768 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 06:25:54,768 INFO ]: Initializing TraceAbstraction... [2018-06-22 06:25:54,771 INFO ]: TraceAbstraction initialized [2018-06-22 06:25:54,772 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:25:54" (1/3) ... [2018-06-22 06:25:54,772 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f637bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 06:25:54, skipping insertion in model container [2018-06-22 06:25:54,773 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:25:54" (2/3) ... [2018-06-22 06:25:54,773 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f637bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:25:54, skipping insertion in model container [2018-06-22 06:25:54,773 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:25:54" (3/3) ... [2018-06-22 06:25:54,775 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 06:25:54,785 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 06:25:54,793 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 06:25:54,837 INFO ]: Using default assertion order modulation [2018-06-22 06:25:54,837 INFO ]: Interprodecural is true [2018-06-22 06:25:54,837 INFO ]: Hoare is false [2018-06-22 06:25:54,837 INFO ]: Compute interpolants for FPandBP [2018-06-22 06:25:54,838 INFO ]: Backedges is TWOTRACK [2018-06-22 06:25:54,838 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 06:25:54,838 INFO ]: Difference is false [2018-06-22 06:25:54,838 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 06:25:54,838 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 06:25:54,856 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 06:25:54,874 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 06:25:54,874 INFO ]: Found error trace [2018-06-22 06:25:54,875 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:25:54,875 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:25:54,881 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 06:25:54,883 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:25:54,884 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:25:54,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:25:54,920 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:25:54,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:25:55,047 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:25:55,356 WARN ]: Spent 151.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2018-06-22 06:25:55,360 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:25:55,363 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 06:25:55,363 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 06:25:55,365 INFO ]: Interpolant automaton has 3 states [2018-06-22 06:25:55,378 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 06:25:55,379 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 06:25:55,380 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 06:25:55,459 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:25:55,459 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 06:25:55,461 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 06:25:55,462 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 06:25:55,462 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:25:55,478 INFO ]: With dead ends: 9 [2018-06-22 06:25:55,478 INFO ]: Without dead ends: 9 [2018-06-22 06:25:55,480 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 [2018-06-22 06:25:55,502 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 06:25:55,538 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 06:25:55,540 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 06:25:55,540 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 06:25:55,542 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 06:25:55,542 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:25:55,542 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 06:25:55,542 INFO ]: Interpolant automaton has 3 states. [2018-06-22 06:25:55,542 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 06:25:55,542 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 06:25:55,542 INFO ]: Found error trace [2018-06-22 06:25:55,542 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:25:55,542 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:25:55,543 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 06:25:55,543 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:25:55,543 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:25:55,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:25:55,544 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:25:55,544 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:25:55,664 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:25:55,878 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:25:55,878 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:25:55,878 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 06:25:55,887 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:25:56,035 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:25:56,046 INFO ]: Computing forward predicates... [2018-06-22 06:25:56,652 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 06:25:56,766 WARN ]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2018-06-22 06:25:59,962 INFO ]: Simplified to disjunction of 4608 conjuctions. [2018-06-22 06:26:00,037 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,063 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,067 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:00,083 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:00,094 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:00,106 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,140 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,169 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,206 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:00,215 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,225 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:00,254 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:00,271 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 06:26:01,174 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:01,203 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:01,214 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:01,242 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:01,265 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 06:26:02,170 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:02,211 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:02,240 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:02,278 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:02,289 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:02,298 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 06:26:02,406 WARN ]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2018-06-22 06:26:06,660 INFO ]: Simplified to disjunction of 4608 conjuctions. [2018-06-22 06:26:06,699 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:06,723 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 06:26:06,893 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 06:26:07,870 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 06:26:09,045 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:09,049 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:09,055 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 06:26:10,055 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:10,060 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:10,067 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:26:10,071 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 06:26:10,103 WARN ]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2018-06-22 06:26:16,485 INFO ]: Simplified to disjunction of 4608 conjuctions. [2018-06-22 06:26:16,526 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 06:26:16,554 WARN ]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2018-06-22 06:26:21,448 INFO ]: Simplified to disjunction of 4608 conjuctions. [2018-06-22 06:26:21,462 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:21,482 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 06:26:26,068 WARN ]: Spent 338.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 29 [2018-06-22 06:26:26,071 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:26:26,108 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:26:26,108 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 06:26:26,109 INFO ]: Interpolant automaton has 6 states [2018-06-22 06:26:26,109 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 06:26:26,109 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 06:26:26,109 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 06:26:26,181 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:26:26,181 INFO ]: Finished difference Result 5 states and 5 transitions. [2018-06-22 06:26:26,181 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 06:26:26,181 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 06:26:26,182 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:26:26,182 INFO ]: With dead ends: 5 [2018-06-22 06:26:26,182 INFO ]: Without dead ends: 0 [2018-06-22 06:26:26,182 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-22 06:26:26,183 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 06:26:26,183 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 06:26:26,183 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 06:26:26,183 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 06:26:26,183 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-06-22 06:26:26,183 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:26:26,183 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 06:26:26,183 INFO ]: Interpolant automaton has 6 states. [2018-06-22 06:26:26,183 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 06:26:26,183 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 06:26:26,187 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:26:26 BoogieIcfgContainer [2018-06-22 06:26:26,187 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 06:26:26,188 INFO ]: Toolchain (without parser) took 31925.25 ms. Allocated memory was 303.0 MB in the beginning and 668.5 MB in the end (delta: 365.4 MB). Free memory was 251.4 MB in the beginning and 525.8 MB in the end (delta: -274.3 MB). Peak memory consumption was 91.1 MB. Max. memory is 3.6 GB. [2018-06-22 06:26:26,190 INFO ]: SmtParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 06:26:26,190 INFO ]: ChcToBoogie took 81.75 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 248.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:26:26,191 INFO ]: Boogie Preprocessor took 42.94 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 247.4 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-22 06:26:26,191 INFO ]: RCFGBuilder took 369.54 ms. Allocated memory is still 303.0 MB. Free memory was 247.4 MB in the beginning and 227.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:26:26,192 INFO ]: TraceAbstraction took 31419.91 ms. Allocated memory was 303.0 MB in the beginning and 668.5 MB in the end (delta: 365.4 MB). Free memory was 227.4 MB in the beginning and 525.8 MB in the end (delta: -298.3 MB). Peak memory consumption was 67.1 MB. Max. memory is 3.6 GB. [2018-06-22 06:26:26,200 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.11 ms. Allocated memory is still 303.0 MB. Free memory is still 268.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 81.75 ms. Allocated memory is still 303.0 MB. Free memory was 251.4 MB in the beginning and 248.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 42.94 ms. Allocated memory is still 303.0 MB. Free memory was 248.4 MB in the beginning and 247.4 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 369.54 ms. Allocated memory is still 303.0 MB. Free memory was 247.4 MB in the beginning and 227.4 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 31419.91 ms. Allocated memory was 303.0 MB in the beginning and 668.5 MB in the end (delta: 365.4 MB). Free memory was 227.4 MB in the beginning and 525.8 MB in the end (delta: -298.3 MB). Peak memory consumption was 67.1 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, 31.3s 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, 0.8s 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, 0.3s SatisfiabilityAnalysisTime, 30.5s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 10 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 54 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_all.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_06-26-26-218.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/car_all.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_06-26-26-218.csv Received shutdown request...