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/rtp_10_e7_106_e7_2564.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 09:39:46,364 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 09:39:46,368 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 09:39:46,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 09:39:46,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 09:39:46,385 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 09:39:46,387 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 09:39:46,389 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 09:39:46,390 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 09:39:46,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 09:39:46,392 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 09:39:46,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 09:39:46,393 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 09:39:46,394 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 09:39:46,398 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 09:39:46,399 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 09:39:46,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 09:39:46,414 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 09:39:46,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 09:39:46,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 09:39:46,417 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 09:39:46,419 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 09:39:46,419 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 09:39:46,419 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 09:39:46,420 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 09:39:46,421 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 09:39:46,421 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 09:39:46,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 09:39:46,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 09:39:46,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 09:39:46,426 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 09:39:46,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 09:39:46,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 09:39:46,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 09:39:46,432 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 09:39:46,432 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 09:39:46,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 09:39:46,456 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 09:39:46,456 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 09:39:46,457 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 09:39:46,458 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 09:39:46,458 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 09:39:46,458 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 09:39:46,458 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 09:39:46,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 09:39:46,459 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 09:39:46,459 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 09:39:46,459 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 09:39:46,459 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 09:39:46,459 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 09:39:46,460 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 09:39:46,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 09:39:46,460 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 09:39:46,462 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 09:39:46,462 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 09:39:46,520 INFO ]: Repository-Root is: /tmp [2018-06-22 09:39:46,537 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 09:39:46,542 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 09:39:46,545 INFO ]: Initializing SmtParser... [2018-06-22 09:39:46,545 INFO ]: SmtParser initialized [2018-06-22 09:39:46,546 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/rtp_10_e7_106_e7_2564.smt2 [2018-06-22 09:39:46,547 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 09:39:46,636 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/rtp_10_e7_106_e7_2564.smt2 unknown [2018-06-22 09:39:47,195 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/rtp_10_e7_106_e7_2564.smt2 [2018-06-22 09:39:47,199 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 09:39:47,205 INFO ]: Walking toolchain with 4 elements. [2018-06-22 09:39:47,206 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 09:39:47,206 INFO ]: Initializing ChcToBoogie... [2018-06-22 09:39:47,206 INFO ]: ChcToBoogie initialized [2018-06-22 09:39:47,209 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,349 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47 Unit [2018-06-22 09:39:47,349 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 09:39:47,349 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 09:39:47,349 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 09:39:47,349 INFO ]: Boogie Preprocessor initialized [2018-06-22 09:39:47,363 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,363 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,376 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,376 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,396 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,397 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,410 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (1/1) ... [2018-06-22 09:39:47,415 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 09:39:47,415 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 09:39:47,415 INFO ]: Initializing RCFGBuilder... [2018-06-22 09:39:47,415 INFO ]: RCFGBuilder initialized [2018-06-22 09:39:47,416 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (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 09:39:47,430 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 09:39:47,430 INFO ]: Found specification of procedure gotoProc [2018-06-22 09:39:47,430 INFO ]: Found implementation of procedure gotoProc [2018-06-22 09:39:47,430 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 09:39:47,430 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 09:39:47,430 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 09:39:48,027 INFO ]: Using library mode [2018-06-22 09:39:48,027 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:39:48 BoogieIcfgContainer [2018-06-22 09:39:48,027 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 09:39:48,028 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 09:39:48,029 INFO ]: Initializing TraceAbstraction... [2018-06-22 09:39:48,032 INFO ]: TraceAbstraction initialized [2018-06-22 09:39:48,032 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:39:47" (1/3) ... [2018-06-22 09:39:48,033 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2722b995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 09:39:48, skipping insertion in model container [2018-06-22 09:39:48,033 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:39:47" (2/3) ... [2018-06-22 09:39:48,033 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2722b995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:39:48, skipping insertion in model container [2018-06-22 09:39:48,033 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:39:48" (3/3) ... [2018-06-22 09:39:48,035 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 09:39:48,044 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 09:39:48,052 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 09:39:48,106 INFO ]: Using default assertion order modulation [2018-06-22 09:39:48,106 INFO ]: Interprodecural is true [2018-06-22 09:39:48,106 INFO ]: Hoare is false [2018-06-22 09:39:48,106 INFO ]: Compute interpolants for FPandBP [2018-06-22 09:39:48,106 INFO ]: Backedges is TWOTRACK [2018-06-22 09:39:48,106 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 09:39:48,106 INFO ]: Difference is false [2018-06-22 09:39:48,106 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 09:39:48,107 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 09:39:48,122 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 09:39:48,133 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 09:39:48,133 INFO ]: Found error trace [2018-06-22 09:39:48,137 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:39:48,137 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:39:48,142 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 09:39:48,144 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:39:48,144 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:39:48,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:48,180 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:39:48,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:48,331 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:39:48,529 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:39:48,531 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 09:39:48,531 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 09:39:48,533 INFO ]: Interpolant automaton has 3 states [2018-06-22 09:39:48,547 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 09:39:48,547 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 09:39:48,549 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 09:39:48,633 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:39:48,633 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 09:39:48,635 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 09:39:48,636 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 09:39:48,636 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:39:48,645 INFO ]: With dead ends: 9 [2018-06-22 09:39:48,645 INFO ]: Without dead ends: 9 [2018-06-22 09:39:48,648 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 09:39:48,667 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 09:39:48,695 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 09:39:48,696 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 09:39:48,696 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 09:39:48,698 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 09:39:48,699 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:39:48,699 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 09:39:48,699 INFO ]: Interpolant automaton has 3 states. [2018-06-22 09:39:48,699 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 09:39:48,699 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 09:39:48,699 INFO ]: Found error trace [2018-06-22 09:39:48,699 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:39:48,700 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:39:48,700 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 09:39:48,700 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:39:48,700 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:39:48,701 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:48,701 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:39:48,701 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:48,864 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:39:49,027 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:39:49,027 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:39:49,027 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 09:39:49,034 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:39:49,283 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:39:49,296 INFO ]: Computing forward predicates... [2018-06-22 09:39:49,383 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:39:50,543 WARN ]: Spent 172.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2018-06-22 09:39:50,546 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:39:50,580 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 09:39:50,581 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 09:39:50,581 INFO ]: Interpolant automaton has 5 states [2018-06-22 09:39:50,581 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 09:39:50,581 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 09:39:50,582 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 09:39:50,661 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:39:50,661 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 09:39:50,661 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 09:39:50,661 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 09:39:50,661 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:39:50,661 INFO ]: With dead ends: 11 [2018-06-22 09:39:50,661 INFO ]: Without dead ends: 11 [2018-06-22 09:39:50,662 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 09:39:50,662 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 09:39:50,664 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 09:39:50,664 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 09:39:50,664 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 09:39:50,664 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 09:39:50,664 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:39:50,664 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 09:39:50,664 INFO ]: Interpolant automaton has 5 states. [2018-06-22 09:39:50,664 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 09:39:50,665 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 09:39:50,665 INFO ]: Found error trace [2018-06-22 09:39:50,665 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:39:50,666 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:39:50,666 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-22 09:39:50,666 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:39:50,666 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:39:50,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:50,667 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:39:50,667 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:39:50,840 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:39:51,336 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:39:51,336 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:39:51,336 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 09:39:51,351 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 09:39:51,714 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 09:39:51,714 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:39:51,731 INFO ]: Computing forward predicates... [2018-06-22 09:39:52,093 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:39:54,500 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:39:54,503 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:39:54,578 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:39:54,588 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:39:54,618 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:39:54,639 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:39:54,650 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:39:54,651 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:39:54,652 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:39:54,654 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:39:54,655 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:39:54,655 WARN ]: expecting exponential blowup for input size 16 [2018-06-22 09:39:55,016 WARN ]: Simplifying disjunction of 13824 conjuctions. This might take some time... [2018-06-22 09:40:14,725 INFO ]: Simplified to disjunction of 10368 conjuctions. [2018-06-22 09:40:14,781 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:40:14,784 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:40:14,789 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:14,791 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:14,809 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 09:40:16,011 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:16,066 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:16,067 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:16,115 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:16,117 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:16,118 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:16,131 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:16,132 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:16,455 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:16,494 WARN ]: expecting exponential blowup for input size 13 [2018-06-22 09:40:17,395 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 09:40:18,475 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:18,510 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 09:40:19,854 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,854 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,855 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:19,892 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:19,903 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,904 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:19,944 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:19,989 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,990 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:40:19,995 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,995 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:19,996 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:20,004 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:20,017 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:20,031 WARN ]: expecting exponential blowup for input size 13 [2018-06-22 09:40:21,533 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:21,568 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 09:40:22,624 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:22,634 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:22,645 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:22,645 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:40:22,646 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:22,655 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:22,655 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:22,692 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:40:22,698 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:22,699 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:22,700 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:22,700 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:22,729 WARN ]: expecting exponential blowup for input size 16 [2018-06-22 09:40:22,856 WARN ]: Simplifying disjunction of 13824 conjuctions. This might take some time... [2018-06-22 09:40:41,725 INFO ]: Simplified to disjunction of 10368 conjuctions. [2018-06-22 09:40:41,751 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:41,752 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:41,752 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:40:41,753 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 09:40:41,755 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:41,755 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:41,756 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 09:40:43,868 WARN ]: expecting exponential blowup for input size 13 [2018-06-22 09:40:45,021 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:45,052 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,053 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,053 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:40:45,057 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,058 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,064 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:40:45,074 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:45,084 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:45,094 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,094 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 09:40:45,095 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,095 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,095 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,096 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 09:40:45,097 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:40:45,128 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:40:45,136 WARN ]: expecting exponential blowup for input size 16 [2018-06-22 09:40:45,206 WARN ]: Simplifying disjunction of 13824 conjuctions. This might take some time... Received shutdown request... [2018-06-22 09:41:00,646 INFO ]: Timeout while computing interpolants [2018-06-22 09:41:00,847 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 09:41:00,847 WARN ]: Verification canceled [2018-06-22 09:41:00,851 WARN ]: Timeout [2018-06-22 09:41:00,851 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:41:00 BoogieIcfgContainer [2018-06-22 09:41:00,851 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 09:41:00,852 INFO ]: Toolchain (without parser) took 73651.89 ms. Allocated memory was 306.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 230.6 MB in the beginning and 407.6 MB in the end (delta: -177.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 09:41:00,853 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 09:41:00,853 INFO ]: ChcToBoogie took 143.34 ms. Allocated memory is still 306.2 MB. Free memory was 230.6 MB in the beginning and 226.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:41:00,854 INFO ]: Boogie Preprocessor took 65.65 ms. Allocated memory is still 306.2 MB. Free memory was 226.6 MB in the beginning and 224.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:41:00,860 INFO ]: RCFGBuilder took 611.96 ms. Allocated memory was 306.2 MB in the beginning and 325.6 MB in the end (delta: 19.4 MB). Free memory was 224.6 MB in the beginning and 279.1 MB in the end (delta: -54.5 MB). Peak memory consumption was 45.3 MB. Max. memory is 3.6 GB. [2018-06-22 09:41:00,861 INFO ]: TraceAbstraction took 72822.48 ms. Allocated memory was 325.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 279.1 MB in the beginning and 407.6 MB in the end (delta: -128.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 09:41:00,864 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 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 143.34 ms. Allocated memory is still 306.2 MB. Free memory was 230.6 MB in the beginning and 226.6 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 65.65 ms. Allocated memory is still 306.2 MB. Free memory was 226.6 MB in the beginning and 224.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 611.96 ms. Allocated memory was 306.2 MB in the beginning and 325.6 MB in the end (delta: 19.4 MB). Free memory was 224.6 MB in the beginning and 279.1 MB in the end (delta: -54.5 MB). Peak memory consumption was 45.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 72822.48 ms. Allocated memory was 325.6 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 279.1 MB in the beginning and 407.6 MB in the end (delta: -128.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 13824 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 72.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 371 SizeOfPredicates, 2 NumberOfNonLiveVariables, 905 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rtp_10_e7_106_e7_2564.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_09-41-00-882.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rtp_10_e7_106_e7_2564.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_09-41-00-882.csv Completed graceful shutdown