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/cav12/diskperf_simpl1.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:20:47,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:20:47,469 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:20:47,483 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:20:47,484 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:20:47,485 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:20:47,486 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:20:47,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:20:47,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:20:47,492 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:20:47,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:20:47,495 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:20:47,495 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:20:47,496 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:20:47,499 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:20:47,500 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:20:47,502 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:20:47,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:20:47,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:20:47,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:20:47,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:20:47,520 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:20:47,521 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:20:47,527 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:20:47,528 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:20:47,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:20:47,529 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:20:47,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:20:47,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:20:47,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:20:47,532 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:20:47,538 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:20:47,538 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:20:47,539 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:20:47,540 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:20:47,540 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:20:47,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:20:47,564 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:20:47,564 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:20:47,564 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:20:47,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:20:47,565 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:20:47,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:20:47,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:20:47,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:20:47,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:20:47,567 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:20:47,570 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:20:47,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:20:47,571 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:20:47,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:20:47,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:20:47,571 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:20:47,573 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:20:47,573 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:20:47,623 INFO ]: Repository-Root is: /tmp [2018-06-22 04:20:47,633 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:20:47,636 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:20:47,637 INFO ]: Initializing SmtParser... [2018-06-22 04:20:47,637 INFO ]: SmtParser initialized [2018-06-22 04:20:47,638 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 [2018-06-22 04:20:47,639 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 04:20:47,730 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 unknown [2018-06-22 04:20:49,439 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/diskperf_simpl1.cil.smt2 [2018-06-22 04:20:49,443 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:20:49,451 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:20:49,451 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:20:49,451 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:20:49,452 INFO ]: ChcToBoogie initialized [2018-06-22 04:20:49,455 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,565 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49 Unit [2018-06-22 04:20:49,565 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:20:49,566 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:20:49,566 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:20:49,566 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:20:49,587 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,587 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,621 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,621 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,670 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,671 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,686 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (1/1) ... [2018-06-22 04:20:49,705 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:20:49,706 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:20:49,706 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:20:49,706 INFO ]: RCFGBuilder initialized [2018-06-22 04:20:49,706 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (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 04:20:49,719 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:20:49,719 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:20:49,720 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:20:49,720 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:20:49,720 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:20:49,720 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 04:20:50,797 INFO ]: Using library mode [2018-06-22 04:20:50,798 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:20:50 BoogieIcfgContainer [2018-06-22 04:20:50,798 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:20:50,799 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:20:50,799 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:20:50,802 INFO ]: TraceAbstraction initialized [2018-06-22 04:20:50,802 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:20:49" (1/3) ... [2018-06-22 04:20:50,803 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70292d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:20:50, skipping insertion in model container [2018-06-22 04:20:50,803 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:20:49" (2/3) ... [2018-06-22 04:20:50,803 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70292d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:20:50, skipping insertion in model container [2018-06-22 04:20:50,803 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:20:50" (3/3) ... [2018-06-22 04:20:50,805 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:20:50,814 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:20:50,824 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:20:50,866 INFO ]: Using default assertion order modulation [2018-06-22 04:20:50,867 INFO ]: Interprodecural is true [2018-06-22 04:20:50,867 INFO ]: Hoare is false [2018-06-22 04:20:50,867 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:20:50,867 INFO ]: Backedges is TWOTRACK [2018-06-22 04:20:50,867 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:20:50,867 INFO ]: Difference is false [2018-06-22 04:20:50,867 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:20:50,867 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:20:50,880 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:20:50,894 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:20:50,894 INFO ]: Found error trace [2018-06-22 04:20:50,895 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:20:50,895 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:20:50,900 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 04:20:50,902 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:20:50,903 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:20:50,937 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:20:50,937 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:20:50,937 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:20:51,042 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:20:51,156 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:20:51,158 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:20:51,158 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:20:51,159 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:20:51,169 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:20:51,170 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:20:51,171 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:20:51,376 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:20:51,376 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:20:51,379 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:20:51,380 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:20:51,380 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:20:51,390 INFO ]: With dead ends: 9 [2018-06-22 04:20:51,390 INFO ]: Without dead ends: 9 [2018-06-22 04:20:51,396 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:20:51,415 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:20:51,436 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:20:51,437 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:20:51,437 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:20:51,439 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:20:51,439 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:20:51,439 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:20:51,439 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:20:51,439 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:20:51,439 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:20:51,439 INFO ]: Found error trace [2018-06-22 04:20:51,439 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:20:51,439 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:20:51,439 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 04:20:51,439 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:20:51,439 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:20:51,440 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:20:51,440 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:20:51,440 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:20:51,788 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:20:52,566 WARN ]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-22 04:20:52,567 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:20:52,567 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:20:52,567 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 04:20:52,583 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:20:52,883 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:20:52,913 INFO ]: Computing forward predicates... [2018-06-22 04:20:53,183 WARN ]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:21:07,193 WARN ]: Spent 197.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 22 [2018-06-22 04:21:07,197 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:21:07,261 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:21:07,261 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:21:07,261 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:21:07,262 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:21:07,262 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:21:07,262 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:21:07,359 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:21:07,359 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 04:21:07,360 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 04:21:07,360 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:21:07,360 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:21:07,360 INFO ]: With dead ends: 10 [2018-06-22 04:21:07,360 INFO ]: Without dead ends: 10 [2018-06-22 04:21:07,361 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:21:07,361 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 04:21:07,362 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 04:21:07,362 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 04:21:07,362 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 04:21:07,362 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 04:21:07,362 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:21:07,362 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 04:21:07,362 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:21:07,363 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 04:21:07,363 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 04:21:07,363 INFO ]: Found error trace [2018-06-22 04:21:07,363 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:21:07,363 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:21:07,363 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 04:21:07,363 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:21:07,363 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:21:07,365 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:21:07,365 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:21:07,365 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:21:07,977 INFO ]: Conjunction of SSA is sat [2018-06-22 04:21:08,003 INFO ]: Counterexample might be feasible [2018-06-22 04:21:14,276 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 04:21:14,279 INFO ]: Toolchain (without parser) took 24834.86 ms. Allocated memory was 332.9 MB in the beginning and 4.0 GB in the end (delta: 3.6 GB). Free memory was 192.2 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 2.7 GB. Max. memory is 3.6 GB. [2018-06-22 04:21:14,280 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:21:14,280 INFO ]: ChcToBoogie took 113.93 ms. Allocated memory is still 332.9 MB. Free memory was 192.2 MB in the beginning and 187.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:21:14,280 INFO ]: Boogie Preprocessor took 139.32 ms. Allocated memory is still 332.9 MB. Free memory was 187.2 MB in the beginning and 182.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 3.6 GB. [2018-06-22 04:21:14,280 INFO ]: RCFGBuilder took 1092.17 ms. Allocated memory was 332.9 MB in the beginning and 374.3 MB in the end (delta: 41.4 MB). Free memory was 182.2 MB in the beginning and 185.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. [2018-06-22 04:21:14,281 INFO ]: TraceAbstraction took 23479.20 ms. Allocated memory was 374.3 MB in the beginning and 4.0 GB in the end (delta: 3.6 GB). Free memory was 185.8 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 2.7 GB. Max. memory is 3.6 GB. [2018-06-22 04:21:14,284 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 303.0 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 113.93 ms. Allocated memory is still 332.9 MB. Free memory was 192.2 MB in the beginning and 187.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 139.32 ms. Allocated memory is still 332.9 MB. Free memory was 187.2 MB in the beginning and 182.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1092.17 ms. Allocated memory was 332.9 MB in the beginning and 374.3 MB in the end (delta: 41.4 MB). Free memory was 182.2 MB in the beginning and 185.8 MB in the end (delta: -3.6 MB). Peak memory consumption was 41.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 23479.20 ms. Allocated memory was 374.3 MB in the beginning and 4.0 GB in the end (delta: 3.6 GB). Free memory was 185.8 MB in the beginning and 2.7 GB in the end (delta: -2.5 GB). Peak memory consumption was 2.7 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_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-21-14-294.csv Received shutdown request...