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/cav12/diskperf_simpl1.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 14:02:21,601 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 14:02:21,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 14:02:21,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 14:02:21,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 14:02:21,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 14:02:21,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 14:02:21,624 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 14:02:21,625 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 14:02:21,627 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 14:02:21,628 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 14:02:21,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 14:02:21,629 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 14:02:21,630 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 14:02:21,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 14:02:21,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 14:02:21,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 14:02:21,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 14:02:21,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 14:02:21,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 14:02:21,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 14:02:21,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 14:02:21,653 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 14:02:21,654 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 14:02:21,654 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 14:02:21,655 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 14:02:21,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 14:02:21,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 14:02:21,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 14:02:21,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 14:02:21,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 14:02:21,666 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 14:02:21,667 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 14:02:21,667 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 14:02:21,668 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 14:02:21,668 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 14:02:21,691 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 14:02:21,691 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 14:02:21,692 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 14:02:21,692 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 14:02:21,693 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 14:02:21,693 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 14:02:21,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 14:02:21,693 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 14:02:21,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 14:02:21,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 14:02:21,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 14:02:21,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 14:02:21,694 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 14:02:21,695 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 14:02:21,695 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 14:02:21,695 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 14:02:21,696 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 14:02:21,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 14:02:21,696 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 14:02:21,698 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 14:02:21,698 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 14:02:21,736 INFO ]: Repository-Root is: /tmp [2018-06-22 14:02:21,753 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 14:02:21,758 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 14:02:21,759 INFO ]: Initializing SmtParser... [2018-06-22 14:02:21,760 INFO ]: SmtParser initialized [2018-06-22 14:02:21,760 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 [2018-06-22 14:02:21,762 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 14:02:21,857 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 unknown [2018-06-22 14:02:23,226 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 [2018-06-22 14:02:23,231 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 14:02:23,237 INFO ]: Walking toolchain with 4 elements. [2018-06-22 14:02:23,238 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 14:02:23,238 INFO ]: Initializing ChcToBoogie... [2018-06-22 14:02:23,238 INFO ]: ChcToBoogie initialized [2018-06-22 14:02:23,241 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,341 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23 Unit [2018-06-22 14:02:23,341 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 14:02:23,342 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 14:02:23,342 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 14:02:23,342 INFO ]: Boogie Preprocessor initialized [2018-06-22 14:02:23,364 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,364 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,403 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,404 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,446 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,447 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,457 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (1/1) ... [2018-06-22 14:02:23,468 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 14:02:23,469 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 14:02:23,469 INFO ]: Initializing RCFGBuilder... [2018-06-22 14:02:23,469 INFO ]: RCFGBuilder initialized [2018-06-22 14:02:23,470 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (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 14:02:23,483 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 14:02:23,483 INFO ]: Found specification of procedure False [2018-06-22 14:02:23,483 INFO ]: Found implementation of procedure False [2018-06-22 14:02:23,483 INFO ]: Specification and implementation of procedure state given in one single declaration [2018-06-22 14:02:23,483 INFO ]: Found specification of procedure state [2018-06-22 14:02:23,483 INFO ]: Found implementation of procedure state [2018-06-22 14:02:23,483 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 14:02:23,483 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 14:02:23,483 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 14:02:24,811 INFO ]: Using library mode [2018-06-22 14:02:24,812 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:02:24 BoogieIcfgContainer [2018-06-22 14:02:24,812 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 14:02:24,813 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 14:02:24,813 INFO ]: Initializing TraceAbstraction... [2018-06-22 14:02:24,820 INFO ]: TraceAbstraction initialized [2018-06-22 14:02:24,820 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 02:02:23" (1/3) ... [2018-06-22 14:02:24,821 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b6376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 02:02:24, skipping insertion in model container [2018-06-22 14:02:24,821 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 02:02:23" (2/3) ... [2018-06-22 14:02:24,821 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707b6376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:02:24, skipping insertion in model container [2018-06-22 14:02:24,821 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:02:24" (3/3) ... [2018-06-22 14:02:24,823 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 14:02:24,833 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 14:02:24,843 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 14:02:24,889 INFO ]: Using default assertion order modulation [2018-06-22 14:02:24,889 INFO ]: Interprodecural is true [2018-06-22 14:02:24,890 INFO ]: Hoare is false [2018-06-22 14:02:24,890 INFO ]: Compute interpolants for FPandBP [2018-06-22 14:02:24,890 INFO ]: Backedges is TWOTRACK [2018-06-22 14:02:24,890 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 14:02:24,890 INFO ]: Difference is false [2018-06-22 14:02:24,890 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 14:02:24,890 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 14:02:24,907 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 14:02:24,923 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 14:02:24,923 INFO ]: Found error trace [2018-06-22 14:02:24,924 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:02:24,924 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:02:24,930 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 14:02:24,932 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:02:24,932 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:02:24,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:24,981 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:02:24,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:25,033 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:02:25,185 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 14:02:25,187 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 14:02:25,188 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 14:02:25,189 INFO ]: Interpolant automaton has 4 states [2018-06-22 14:02:25,228 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 14:02:25,228 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 14:02:25,231 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 14:02:25,474 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:02:25,474 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 14:02:25,475 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 14:02:25,476 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 14:02:25,476 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:02:25,488 INFO ]: With dead ends: 13 [2018-06-22 14:02:25,488 INFO ]: Without dead ends: 13 [2018-06-22 14:02:25,490 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 14:02:25,506 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 14:02:25,529 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 14:02:25,530 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 14:02:25,531 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 14:02:25,532 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 14:02:25,532 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:02:25,532 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 14:02:25,532 INFO ]: Interpolant automaton has 4 states. [2018-06-22 14:02:25,532 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 14:02:25,533 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 14:02:25,533 INFO ]: Found error trace [2018-06-22 14:02:25,533 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:02:25,533 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:02:25,533 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 14:02:25,533 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:02:25,533 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:02:25,534 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:25,534 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:02:25,534 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:25,921 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:02:26,464 WARN ]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-06-22 14:02:26,758 WARN ]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-06-22 14:02:26,971 WARN ]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-22 14:02:27,132 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:02:27,132 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 14:02:27,132 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) [2018-06-22 14:02:27,148 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 14:02:27,414 INFO ]: Conjunction of SSA is unsat [2018-06-22 14:02:27,440 INFO ]: Computing forward predicates... [2018-06-22 14:02:30,171 WARN ]: Spent 1.05 s on a formula simplification. DAG size of input: 55 DAG size of output: 34 [2018-06-22 14:02:30,314 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 14:02:30,338 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 14:02:30,338 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2018-06-22 14:02:30,339 INFO ]: Interpolant automaton has 8 states [2018-06-22 14:02:30,339 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 14:02:30,339 INFO ]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-06-22 14:02:30,339 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 8 states. [2018-06-22 14:02:30,688 WARN ]: Spent 196.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2018-06-22 14:02:30,711 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 14:02:30,711 INFO ]: Finished difference Result 15 states and 16 transitions. [2018-06-22 14:02:30,714 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 14:02:30,714 INFO ]: Start accepts. Automaton has 8 states. Word has length 13 [2018-06-22 14:02:30,714 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 14:02:30,714 INFO ]: With dead ends: 15 [2018-06-22 14:02:30,714 INFO ]: Without dead ends: 15 [2018-06-22 14:02:30,715 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-06-22 14:02:30,715 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 14:02:30,718 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 14:02:30,718 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 14:02:30,718 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-06-22 14:02:30,718 INFO ]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2018-06-22 14:02:30,718 INFO ]: Finished accepts. word is rejected. [2018-06-22 14:02:30,718 INFO ]: Abstraction has 15 states and 16 transitions. [2018-06-22 14:02:30,718 INFO ]: Interpolant automaton has 8 states. [2018-06-22 14:02:30,718 INFO ]: Start isEmpty. Operand 15 states and 16 transitions. [2018-06-22 14:02:30,719 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 14:02:30,719 INFO ]: Found error trace [2018-06-22 14:02:30,719 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 14:02:30,719 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 14:02:30,719 INFO ]: Analyzing trace with hash -1649658231, now seen corresponding path program 2 times [2018-06-22 14:02:30,719 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 14:02:30,719 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 14:02:30,720 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:30,720 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 14:02:30,720 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 14:02:31,478 INFO ]: Conjunction of SSA is sat [2018-06-22 14:02:31,502 INFO ]: Counterexample might be feasible [2018-06-22 14:02:37,054 FATAL]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Arrays.java:3332) at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:124) at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:448) at java.lang.StringBuilder.append(StringBuilder.java:136) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:390) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:292) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:259) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:259) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:259) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:259) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:257) at de.uni_freiburg.informatik.ultimate.boogie.output.BoogieOutput.appendExpression(BoogieOutput.java:259) [2018-06-22 14:02:37,057 INFO ]: Toolchain (without parser) took 13825.30 ms. Allocated memory was 335.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 195.0 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.6 GB. Max. memory is 3.6 GB. [2018-06-22 14:02:37,058 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 14:02:37,058 INFO ]: ChcToBoogie took 103.55 ms. Allocated memory is still 335.0 MB. Free memory was 193.4 MB in the beginning and 188.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. [2018-06-22 14:02:37,058 INFO ]: Boogie Preprocessor took 126.29 ms. Allocated memory is still 335.0 MB. Free memory was 188.6 MB in the beginning and 183.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. [2018-06-22 14:02:37,058 INFO ]: RCFGBuilder took 1342.98 ms. Allocated memory was 335.0 MB in the beginning and 371.7 MB in the end (delta: 36.7 MB). Free memory was 183.8 MB in the beginning and 186.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 37.3 MB. Max. memory is 3.6 GB. [2018-06-22 14:02:37,059 INFO ]: TraceAbstraction took 12242.58 ms. Allocated memory was 371.7 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 186.7 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 3.6 GB. [2018-06-22 14:02:37,062 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 103.55 ms. Allocated memory is still 335.0 MB. Free memory was 193.4 MB in the beginning and 188.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 126.29 ms. Allocated memory is still 335.0 MB. Free memory was 188.6 MB in the beginning and 183.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1342.98 ms. Allocated memory was 335.0 MB in the beginning and 371.7 MB in the end (delta: 36.7 MB). Free memory was 183.8 MB in the beginning and 186.7 MB in the end (delta: -3.0 MB). Peak memory consumption was 37.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 12242.58 ms. Allocated memory was 371.7 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 186.7 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.5 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Java heap space de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Java heap space: java.util.Arrays.copyOf(Arrays.java:3332) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/diskperf_simpl1.cil.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_14-02-37-082.csv Received shutdown request...