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/eldarica-misc/LIA/reve/022d-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:21:04,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:21:04,396 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:21:04,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:21:04,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:21:04,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:21:04,412 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:21:04,414 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:21:04,415 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:21:04,417 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:21:04,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:21:04,418 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:21:04,418 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:21:04,419 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:21:04,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:21:04,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:21:04,425 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:21:04,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:21:04,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:21:04,437 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:21:04,438 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:21:04,443 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:21:04,443 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:21:04,443 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:21:04,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:21:04,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:21:04,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:21:04,448 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:21:04,449 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:21:04,449 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:21:04,449 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:21:04,450 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:21:04,450 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:21:04,454 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:21:04,455 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:21:04,455 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 11:21:04,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:21:04,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:21:04,479 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:21:04,479 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:21:04,480 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:21:04,480 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:21:04,481 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:21:04,481 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:21:04,481 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:21:04,481 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:21:04,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:21:04,482 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:21:04,482 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:21:04,482 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:21:04,482 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:21:04,482 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:21:04,482 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:21:04,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:21:04,483 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:21:04,486 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:21:04,486 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:21:04,539 INFO ]: Repository-Root is: /tmp [2018-06-22 11:21:04,557 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:21:04,562 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:21:04,563 INFO ]: Initializing SmtParser... [2018-06-22 11:21:04,564 INFO ]: SmtParser initialized [2018-06-22 11:21:04,565 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/022d-horn.smt2 [2018-06-22 11:21:04,566 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 11:21:04,653 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/022d-horn.smt2 unknown [2018-06-22 11:21:04,943 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/022d-horn.smt2 [2018-06-22 11:21:04,948 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:21:04,958 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:21:04,959 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:21:04,959 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:21:04,959 INFO ]: ChcToBoogie initialized [2018-06-22 11:21:04,962 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:21:04" (1/1) ... [2018-06-22 11:21:05,009 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05 Unit [2018-06-22 11:21:05,009 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:21:05,010 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:21:05,010 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:21:05,010 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:21:05,031 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,031 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,040 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,040 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,056 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,058 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,060 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (1/1) ... [2018-06-22 11:21:05,071 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:21:05,072 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:21:05,072 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:21:05,072 INFO ]: RCFGBuilder initialized [2018-06-22 11:21:05,072 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (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 11:21:05,088 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:21:05,088 INFO ]: Found specification of procedure False [2018-06-22 11:21:05,088 INFO ]: Found implementation of procedure False [2018-06-22 11:21:05,088 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:21:05,088 INFO ]: Found specification of procedure INV1 [2018-06-22 11:21:05,088 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:21:05,088 INFO ]: Specification and implementation of procedure INV4 given in one single declaration [2018-06-22 11:21:05,088 INFO ]: Found specification of procedure INV4 [2018-06-22 11:21:05,088 INFO ]: Found implementation of procedure INV4 [2018-06-22 11:21:05,089 INFO ]: Specification and implementation of procedure INV2 given in one single declaration [2018-06-22 11:21:05,089 INFO ]: Found specification of procedure INV2 [2018-06-22 11:21:05,089 INFO ]: Found implementation of procedure INV2 [2018-06-22 11:21:05,089 INFO ]: Specification and implementation of procedure INV3 given in one single declaration [2018-06-22 11:21:05,089 INFO ]: Found specification of procedure INV3 [2018-06-22 11:21:05,089 INFO ]: Found implementation of procedure INV3 [2018-06-22 11:21:05,089 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:21:05,089 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:21:05,089 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 11:21:05,477 INFO ]: Using library mode [2018-06-22 11:21:05,478 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:21:05 BoogieIcfgContainer [2018-06-22 11:21:05,478 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:21:05,479 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:21:05,479 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:21:05,482 INFO ]: TraceAbstraction initialized [2018-06-22 11:21:05,482 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:21:04" (1/3) ... [2018-06-22 11:21:05,483 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fc3175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:21:05, skipping insertion in model container [2018-06-22 11:21:05,483 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:21:05" (2/3) ... [2018-06-22 11:21:05,483 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fc3175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:21:05, skipping insertion in model container [2018-06-22 11:21:05,483 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:21:05" (3/3) ... [2018-06-22 11:21:05,485 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:21:05,494 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:21:05,502 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:21:05,536 INFO ]: Using default assertion order modulation [2018-06-22 11:21:05,537 INFO ]: Interprodecural is true [2018-06-22 11:21:05,537 INFO ]: Hoare is false [2018-06-22 11:21:05,537 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:21:05,537 INFO ]: Backedges is TWOTRACK [2018-06-22 11:21:05,537 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:21:05,537 INFO ]: Difference is false [2018-06-22 11:21:05,537 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:21:05,537 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:21:05,553 INFO ]: Start isEmpty. Operand 40 states. [2018-06-22 11:21:05,576 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:21:05,576 INFO ]: Found error trace [2018-06-22 11:21:05,578 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:05,578 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:05,584 INFO ]: Analyzing trace with hash -1354509503, now seen corresponding path program 1 times [2018-06-22 11:21:05,585 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:05,586 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:05,621 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:05,621 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:05,621 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:05,663 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:05,739 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:21:05,741 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:21:05,741 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:21:05,743 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:21:05,758 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:21:05,759 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:21:05,761 INFO ]: Start difference. First operand 40 states. Second operand 4 states. [2018-06-22 11:21:06,021 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:06,021 INFO ]: Finished difference Result 40 states and 73 transitions. [2018-06-22 11:21:06,022 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:21:06,023 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:21:06,023 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:06,033 INFO ]: With dead ends: 40 [2018-06-22 11:21:06,033 INFO ]: Without dead ends: 40 [2018-06-22 11:21:06,034 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 11:21:06,050 INFO ]: Start minimizeSevpa. Operand 40 states. [2018-06-22 11:21:06,095 INFO ]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-06-22 11:21:06,096 INFO ]: Start removeUnreachable. Operand 40 states. [2018-06-22 11:21:06,099 INFO ]: Finished removeUnreachable. Reduced from 40 states to 40 states and 73 transitions. [2018-06-22 11:21:06,100 INFO ]: Start accepts. Automaton has 40 states and 73 transitions. Word has length 9 [2018-06-22 11:21:06,102 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:06,102 INFO ]: Abstraction has 40 states and 73 transitions. [2018-06-22 11:21:06,102 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:21:06,102 INFO ]: Start isEmpty. Operand 40 states and 73 transitions. [2018-06-22 11:21:06,106 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:21:06,106 INFO ]: Found error trace [2018-06-22 11:21:06,106 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:06,106 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:06,106 INFO ]: Analyzing trace with hash 1704645993, now seen corresponding path program 1 times [2018-06-22 11:21:06,106 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:06,106 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:06,107 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:06,107 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:06,107 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:06,137 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:06,334 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:21:06,334 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:06,334 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 11:21:06,350 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 11:21:06,421 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:06,431 INFO ]: Computing forward predicates... [2018-06-22 11:21:06,698 WARN ]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-06-22 11:21:06,822 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:21:06,843 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:06,843 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2018-06-22 11:21:06,844 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:21:06,844 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:21:06,844 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:21:06,844 INFO ]: Start difference. First operand 40 states and 73 transitions. Second operand 8 states. [2018-06-22 11:21:07,110 WARN ]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-06-22 11:21:08,274 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:08,274 INFO ]: Finished difference Result 44 states and 97 transitions. [2018-06-22 11:21:08,275 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:21:08,275 INFO ]: Start accepts. Automaton has 8 states. Word has length 21 [2018-06-22 11:21:08,275 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:08,277 INFO ]: With dead ends: 44 [2018-06-22 11:21:08,277 INFO ]: Without dead ends: 44 [2018-06-22 11:21:08,278 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:21:08,278 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 11:21:08,295 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-06-22 11:21:08,295 INFO ]: Start removeUnreachable. Operand 42 states. [2018-06-22 11:21:08,297 INFO ]: Finished removeUnreachable. Reduced from 42 states to 42 states and 84 transitions. [2018-06-22 11:21:08,297 INFO ]: Start accepts. Automaton has 42 states and 84 transitions. Word has length 21 [2018-06-22 11:21:08,297 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:08,297 INFO ]: Abstraction has 42 states and 84 transitions. [2018-06-22 11:21:08,297 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:21:08,297 INFO ]: Start isEmpty. Operand 42 states and 84 transitions. [2018-06-22 11:21:08,299 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:21:08,299 INFO ]: Found error trace [2018-06-22 11:21:08,300 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:08,300 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:08,300 INFO ]: Analyzing trace with hash 1666845173, now seen corresponding path program 1 times [2018-06-22 11:21:08,300 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:08,300 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:08,301 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:08,301 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:08,301 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:08,325 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:08,405 INFO ]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:21:08,405 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:21:08,405 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 11:21:08,419 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:08,446 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:21:08,449 INFO ]: Computing forward predicates... [2018-06-22 11:21:08,581 INFO ]: Checked inductivity of 9 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:21:08,603 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:21:08,603 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2018-06-22 11:21:08,603 INFO ]: Interpolant automaton has 8 states [2018-06-22 11:21:08,603 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 11:21:08,603 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 11:21:08,604 INFO ]: Start difference. First operand 42 states and 84 transitions. Second operand 8 states. [2018-06-22 11:21:09,126 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:21:09,126 INFO ]: Finished difference Result 44 states and 95 transitions. [2018-06-22 11:21:09,129 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:21:09,129 INFO ]: Start accepts. Automaton has 8 states. Word has length 21 [2018-06-22 11:21:09,130 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:21:09,132 INFO ]: With dead ends: 44 [2018-06-22 11:21:09,132 INFO ]: Without dead ends: 44 [2018-06-22 11:21:09,133 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:21:09,133 INFO ]: Start minimizeSevpa. Operand 44 states. [2018-06-22 11:21:09,145 INFO ]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-06-22 11:21:09,145 INFO ]: Start removeUnreachable. Operand 44 states. [2018-06-22 11:21:09,147 INFO ]: Finished removeUnreachable. Reduced from 44 states to 44 states and 95 transitions. [2018-06-22 11:21:09,147 INFO ]: Start accepts. Automaton has 44 states and 95 transitions. Word has length 21 [2018-06-22 11:21:09,147 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:21:09,147 INFO ]: Abstraction has 44 states and 95 transitions. [2018-06-22 11:21:09,147 INFO ]: Interpolant automaton has 8 states. [2018-06-22 11:21:09,147 INFO ]: Start isEmpty. Operand 44 states and 95 transitions. [2018-06-22 11:21:09,149 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:21:09,149 INFO ]: Found error trace [2018-06-22 11:21:09,149 INFO ]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:21:09,149 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:21:09,149 INFO ]: Analyzing trace with hash 1367396051, now seen corresponding path program 1 times [2018-06-22 11:21:09,149 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:21:09,149 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:21:09,150 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:09,150 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:21:09,150 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:21:09,169 INFO ]: Conjunction of SSA is sat [2018-06-22 11:21:09,173 INFO ]: Counterexample might be feasible [2018-06-22 11:21:09,188 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:21:09 BoogieIcfgContainer [2018-06-22 11:21:09,188 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:21:09,189 INFO ]: Toolchain (without parser) took 4240.49 ms. Allocated memory was 303.0 MB in the beginning and 343.9 MB in the end (delta: 40.9 MB). Free memory was 254.6 MB in the beginning and 305.0 MB in the end (delta: -50.4 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:21:09,190 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:21:09,190 INFO ]: ChcToBoogie took 50.66 ms. Allocated memory is still 303.0 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:09,191 INFO ]: Boogie Preprocessor took 61.34 ms. Allocated memory is still 303.0 MB. Free memory was 252.6 MB in the beginning and 251.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 11:21:09,191 INFO ]: RCFGBuilder took 405.99 ms. Allocated memory is still 303.0 MB. Free memory was 250.6 MB in the beginning and 234.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:21:09,192 INFO ]: TraceAbstraction took 3709.13 ms. Allocated memory was 303.0 MB in the beginning and 343.9 MB in the end (delta: 40.9 MB). Free memory was 234.6 MB in the beginning and 305.0 MB in the end (delta: -70.3 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:21:09,195 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 303.0 MB. Free memory is still 268.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 50.66 ms. Allocated memory is still 303.0 MB. Free memory was 254.6 MB in the beginning and 252.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 61.34 ms. Allocated memory is still 303.0 MB. Free memory was 252.6 MB in the beginning and 251.6 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 405.99 ms. Allocated memory is still 303.0 MB. Free memory was 250.6 MB in the beginning and 234.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3709.13 ms. Allocated memory was 303.0 MB in the beginning and 343.9 MB in the end (delta: 40.9 MB). Free memory was 234.6 MB in the beginning and 305.0 MB in the end (delta: -70.3 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call False(); [L0] assume (((hbv_False_5_Int == hbv_False_6_Int && !(hbv_False_7_Int - hbv_False_8_Int + -1 >= 0)) && !(hbv_False_9_Int == hbv_False_10_Int)) && !(hbv_False_3_Int - hbv_False_4_Int + -1 >= 0)) && hbv_False_1_Int == hbv_False_2_Int; [L0] CALL call INV1(hbv_False_7_Int, hbv_False_9_Int, hbv_False_8_Int, hbv_False_3_Int, hbv_False_10_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_1_Int, hbv_False_6_Int, hbv_False_2_Int); [L0] assume ((((!(hhv_INV1_2_Int - hhv_INV1_0_Int + -1 >= 0) && !(hhv_INV1_5_Int - hhv_INV1_3_Int + -1 >= 0)) && hhv_INV1_7_Int == hhv_INV1_9_Int) && hhv_INV1_6_Int == hhv_INV1_8_Int) && hbv_INV1_1_Int - hbv_INV1_2_Int + -1 >= 0) && hbv_INV1_3_Int - hbv_INV1_4_Int + -1 >= 0; [L0] CALL call INV1(hbv_INV1_1_Int, hbv_INV1_5_Int, hbv_INV1_2_Int, hbv_INV1_3_Int, hbv_INV1_6_Int, hbv_INV1_4_Int, hhv_INV1_6_Int, hhv_INV1_7_Int, hhv_INV1_8_Int, hhv_INV1_9_Int); [L0] assume ((((((-1 * hhv_INV1_2_Int == 0 && -1 * hhv_INV1_5_Int == 0) && hhv_INV1_6_Int == hhv_INV1_0_Int) && hhv_INV1_1_Int == hhv_INV1_4_Int) && hhv_INV1_9_Int == hhv_INV1_4_Int) && hhv_INV1_0_Int == hhv_INV1_3_Int) && hhv_INV1_8_Int == hhv_INV1_3_Int) && hhv_INV1_7_Int == hhv_INV1_1_Int; [L0] RET call INV1(hbv_INV1_1_Int, hbv_INV1_5_Int, hbv_INV1_2_Int, hbv_INV1_3_Int, hbv_INV1_6_Int, hbv_INV1_4_Int, hhv_INV1_6_Int, hhv_INV1_7_Int, hhv_INV1_8_Int, hhv_INV1_9_Int); [L0] CALL call INV2(hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int, hhv_INV1_6_Int, hhv_INV1_7_Int, hhv_INV1_8_Int, hhv_INV1_9_Int); [L0] assume ((((((hhv_INV2_0_Int - hbv_INV2_2_Int + -1 >= 0 && hhv_INV2_3_Int - hbv_INV2_1_Int + -1 >= 0) && hbv_INV2_2_Int + 1 == hhv_INV2_2_Int) && hhv_INV2_6_Int == hhv_INV2_8_Int) && hbv_INV2_4_Int + -2 + 1 == hhv_INV2_1_Int) && hbv_INV2_3_Int + -2 == hhv_INV2_4_Int) && hbv_INV2_1_Int + 1 == hhv_INV2_5_Int) && hhv_INV2_7_Int == hhv_INV2_9_Int; [L0] CALL call INV1(hhv_INV2_0_Int, hbv_INV2_4_Int, hbv_INV2_2_Int, hhv_INV2_3_Int, hbv_INV2_3_Int, hbv_INV2_1_Int, hhv_INV2_6_Int, hhv_INV2_7_Int, hhv_INV2_8_Int, hhv_INV2_9_Int); [L0] assume ((((((-1 * hhv_INV1_2_Int == 0 && -1 * hhv_INV1_5_Int == 0) && hhv_INV1_6_Int == hhv_INV1_0_Int) && hhv_INV1_1_Int == hhv_INV1_4_Int) && hhv_INV1_9_Int == hhv_INV1_4_Int) && hhv_INV1_0_Int == hhv_INV1_3_Int) && hhv_INV1_8_Int == hhv_INV1_3_Int) && hhv_INV1_7_Int == hhv_INV1_1_Int; [L0] RET call INV1(hhv_INV2_0_Int, hbv_INV2_4_Int, hbv_INV2_2_Int, hhv_INV2_3_Int, hbv_INV2_3_Int, hbv_INV2_1_Int, hhv_INV2_6_Int, hhv_INV2_7_Int, hhv_INV2_8_Int, hhv_INV2_9_Int); [L0] RET call INV2(hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int, hhv_INV1_6_Int, hhv_INV1_7_Int, hhv_INV1_8_Int, hhv_INV1_9_Int); [L0] RET call INV1(hbv_False_7_Int, hbv_False_9_Int, hbv_False_8_Int, hbv_False_3_Int, hbv_False_10_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_1_Int, hbv_False_6_Int, hbv_False_2_Int); [L0] RET call False(); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 3.6s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168 SDtfs, 7 SDslu, 582 SDs, 0 SdLazy, 627 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=3, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 5000 SizeOfPredicates, 12 NumberOfNonLiveVariables, 292 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 24/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/022d-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-21-09-214.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/022d-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-21-09-214.csv Received shutdown request...