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/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.did_not_pay_1.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 12:22:46,987 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 12:22:46,989 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 12:22:47,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 12:22:47,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 12:22:47,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 12:22:47,004 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 12:22:47,006 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 12:22:47,007 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 12:22:47,008 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 12:22:47,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 12:22:47,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 12:22:47,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 12:22:47,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 12:22:47,013 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 12:22:47,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 12:22:47,017 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 12:22:47,019 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 12:22:47,029 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 12:22:47,030 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 12:22:47,031 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 12:22:47,036 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 12:22:47,036 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 12:22:47,037 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 12:22:47,037 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 12:22:47,038 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 12:22:47,045 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 12:22:47,045 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 12:22:47,046 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 12:22:47,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 12:22:47,047 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 12:22:47,048 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 12:22:47,048 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 12:22:47,049 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 12:22:47,049 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 12:22:47,049 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 12:22:47,066 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 12:22:47,066 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 12:22:47,067 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 12:22:47,067 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 12:22:47,068 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 12:22:47,068 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 12:22:47,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 12:22:47,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 12:22:47,068 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 12:22:47,069 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 12:22:47,069 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 12:22:47,069 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 12:22:47,069 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 12:22:47,069 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 12:22:47,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 12:22:47,070 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 12:22:47,070 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 12:22:47,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 12:22:47,070 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 12:22:47,071 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 12:22:47,072 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 12:22:47,116 INFO ]: Repository-Root is: /tmp [2018-06-22 12:22:47,132 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 12:22:47,135 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 12:22:47,136 INFO ]: Initializing SmtParser... [2018-06-22 12:22:47,137 INFO ]: SmtParser initialized [2018-06-22 12:22:47,137 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.did_not_pay_1.smt2 [2018-06-22 12:22:47,138 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 12:22:47,229 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.did_not_pay_1.smt2 unknown [2018-06-22 12:22:47,634 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/lfht/lfht_2_mini_cleaned.did_not_pay_1.smt2 [2018-06-22 12:22:47,640 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 12:22:47,646 INFO ]: Walking toolchain with 4 elements. [2018-06-22 12:22:47,646 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 12:22:47,646 INFO ]: Initializing ChcToBoogie... [2018-06-22 12:22:47,646 INFO ]: ChcToBoogie initialized [2018-06-22 12:22:47,650 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,702 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47 Unit [2018-06-22 12:22:47,702 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 12:22:47,702 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 12:22:47,703 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 12:22:47,703 INFO ]: Boogie Preprocessor initialized [2018-06-22 12:22:47,724 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,724 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,733 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,733 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,741 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,742 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,744 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (1/1) ... [2018-06-22 12:22:47,747 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 12:22:47,747 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 12:22:47,747 INFO ]: Initializing RCFGBuilder... [2018-06-22 12:22:47,747 INFO ]: RCFGBuilder initialized [2018-06-22 12:22:47,748 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (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 12:22:47,761 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 12:22:47,761 INFO ]: Found specification of procedure False [2018-06-22 12:22:47,761 INFO ]: Found implementation of procedure False [2018-06-22 12:22:47,761 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 12:22:47,761 INFO ]: Found specification of procedure invariant [2018-06-22 12:22:47,761 INFO ]: Found implementation of procedure invariant [2018-06-22 12:22:47,761 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 12:22:47,761 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 12:22:47,761 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 12:22:48,073 INFO ]: Using library mode [2018-06-22 12:22:48,073 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:22:48 BoogieIcfgContainer [2018-06-22 12:22:48,074 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 12:22:48,075 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 12:22:48,075 INFO ]: Initializing TraceAbstraction... [2018-06-22 12:22:48,083 INFO ]: TraceAbstraction initialized [2018-06-22 12:22:48,084 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:22:47" (1/3) ... [2018-06-22 12:22:48,084 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3005281a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:22:48, skipping insertion in model container [2018-06-22 12:22:48,084 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:22:47" (2/3) ... [2018-06-22 12:22:48,085 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3005281a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:22:48, skipping insertion in model container [2018-06-22 12:22:48,085 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:22:48" (3/3) ... [2018-06-22 12:22:48,086 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 12:22:48,104 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 12:22:48,112 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 12:22:48,149 INFO ]: Using default assertion order modulation [2018-06-22 12:22:48,150 INFO ]: Interprodecural is true [2018-06-22 12:22:48,150 INFO ]: Hoare is false [2018-06-22 12:22:48,150 INFO ]: Compute interpolants for FPandBP [2018-06-22 12:22:48,150 INFO ]: Backedges is TWOTRACK [2018-06-22 12:22:48,150 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 12:22:48,150 INFO ]: Difference is false [2018-06-22 12:22:48,150 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 12:22:48,150 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 12:22:48,163 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 12:22:48,175 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 12:22:48,175 INFO ]: Found error trace [2018-06-22 12:22:48,176 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:22:48,176 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:22:48,182 INFO ]: Analyzing trace with hash -597537630, now seen corresponding path program 1 times [2018-06-22 12:22:48,184 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:22:48,184 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:22:48,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:22:48,221 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:22:48,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:22:48,273 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:22:48,367 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 12:22:48,370 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 12:22:48,370 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 12:22:48,372 INFO ]: Interpolant automaton has 4 states [2018-06-22 12:22:48,384 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 12:22:48,384 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 12:22:48,386 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 12:22:48,501 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 12:22:48,501 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 12:22:48,502 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 12:22:48,503 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 12:22:48,503 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 12:22:48,517 INFO ]: With dead ends: 13 [2018-06-22 12:22:48,517 INFO ]: Without dead ends: 13 [2018-06-22 12:22:48,521 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 12:22:48,541 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 12:22:48,564 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 12:22:48,565 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 12:22:48,566 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 12:22:48,567 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 12:22:48,567 INFO ]: Finished accepts. word is rejected. [2018-06-22 12:22:48,567 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 12:22:48,567 INFO ]: Interpolant automaton has 4 states. [2018-06-22 12:22:48,567 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 12:22:48,569 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 12:22:48,569 INFO ]: Found error trace [2018-06-22 12:22:48,569 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 12:22:48,569 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 12:22:48,569 INFO ]: Analyzing trace with hash 1530833734, now seen corresponding path program 1 times [2018-06-22 12:22:48,569 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 12:22:48,569 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 12:22:48,570 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:22:48,570 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:22:48,570 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 12:22:48,675 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:22:49,435 WARN ]: Spent 476.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 25 [2018-06-22 12:22:49,570 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 12:22:49,570 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 12:22:49,570 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 12:22:49,580 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 12:22:49,621 INFO ]: Conjunction of SSA is unsat [2018-06-22 12:22:49,632 INFO ]: Computing forward predicates... Received shutdown request...