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/hopv/lia/mochi/dotprod_lin.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:28:48,306 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:28:48,308 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:28:48,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:28:48,322 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:28:48,323 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:28:48,324 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:28:48,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:28:48,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:28:48,333 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:28:48,334 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:28:48,334 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:28:48,335 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:28:48,336 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:28:48,339 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:28:48,340 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:28:48,341 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:28:48,351 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:28:48,352 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:28:48,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:28:48,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:28:48,360 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:28:48,360 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:28:48,360 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:28:48,361 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:28:48,362 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:28:48,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:28:48,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:28:48,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:28:48,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:28:48,367 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:28:48,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:28:48,368 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:28:48,368 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:28:48,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:28:48,373 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 11:28:48,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:28:48,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:28:48,399 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:28:48,399 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:28:48,400 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:28:48,400 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:28:48,400 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:28:48,401 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:28:48,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:28:48,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:28:48,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:28:48,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:28:48,401 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:28:48,402 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:28:48,402 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:28:48,402 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:28:48,402 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:28:48,402 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:28:48,403 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:28:48,405 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:28:48,405 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:28:48,457 INFO ]: Repository-Root is: /tmp [2018-06-22 11:28:48,471 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:28:48,474 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:28:48,476 INFO ]: Initializing SmtParser... [2018-06-22 11:28:48,476 INFO ]: SmtParser initialized [2018-06-22 11:28:48,477 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 [2018-06-22 11:28:48,478 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 11:28:48,580 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 unknown [2018-06-22 11:28:48,900 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/dotprod_lin.smt2 [2018-06-22 11:28:48,905 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:28:48,911 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:28:48,912 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:28:48,912 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:28:48,912 INFO ]: ChcToBoogie initialized [2018-06-22 11:28:48,916 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:48,967 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48 Unit [2018-06-22 11:28:48,967 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:28:48,968 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:28:48,968 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:28:48,968 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:28:48,991 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:48,991 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,000 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,000 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,013 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,016 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,017 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (1/1) ... [2018-06-22 11:28:49,020 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:28:49,020 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:28:49,020 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:28:49,020 INFO ]: RCFGBuilder initialized [2018-06-22 11:28:49,021 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (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 11:28:49,037 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:28:49,037 INFO ]: Found specification of procedure False [2018-06-22 11:28:49,037 INFO ]: Found implementation of procedure False [2018-06-22 11:28:49,037 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN10 given in one single declaration [2018-06-22 11:28:49,037 INFO ]: Found specification of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:49,037 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN10 [2018-06-22 11:28:49,037 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN2 given in one single declaration [2018-06-22 11:28:49,037 INFO ]: Found specification of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:49,037 INFO ]: Found implementation of procedure dotprodDLRunknownCLN2 [2018-06-22 11:28:49,037 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN8 given in one single declaration [2018-06-22 11:28:49,037 INFO ]: Found specification of procedure dotprodDLRunknownCLN8 [2018-06-22 11:28:49,037 INFO ]: Found implementation of procedure dotprodDLRunknownCLN8 [2018-06-22 11:28:49,037 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN5 given in one single declaration [2018-06-22 11:28:49,037 INFO ]: Found specification of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:49,037 INFO ]: Found implementation of procedure dotprodDLRunknownCLN5 [2018-06-22 11:28:49,037 INFO ]: Specification and implementation of procedure make_arrayDLRunknownCLN11 given in one single declaration [2018-06-22 11:28:49,038 INFO ]: Found specification of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:49,038 INFO ]: Found implementation of procedure make_arrayDLRunknownCLN11 [2018-06-22 11:28:49,038 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN3 given in one single declaration [2018-06-22 11:28:49,038 INFO ]: Found specification of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:49,038 INFO ]: Found implementation of procedure dotprodDLRunknownCLN3 [2018-06-22 11:28:49,038 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN7 given in one single declaration [2018-06-22 11:28:49,038 INFO ]: Found specification of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:49,038 INFO ]: Found implementation of procedure dotprodDLRunknownCLN7 [2018-06-22 11:28:49,038 INFO ]: Specification and implementation of procedure dotprodDLRunknownCLN4 given in one single declaration [2018-06-22 11:28:49,038 INFO ]: Found specification of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:49,038 INFO ]: Found implementation of procedure dotprodDLRunknownCLN4 [2018-06-22 11:28:49,038 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:28:49,038 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:28:49,038 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 11:28:49,608 INFO ]: Using library mode [2018-06-22 11:28:49,611 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:49 BoogieIcfgContainer [2018-06-22 11:28:49,611 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:28:49,612 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:28:49,613 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:28:49,615 INFO ]: TraceAbstraction initialized [2018-06-22 11:28:49,615 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:28:48" (1/3) ... [2018-06-22 11:28:49,616 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c97a0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:28:49, skipping insertion in model container [2018-06-22 11:28:49,616 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:28:48" (2/3) ... [2018-06-22 11:28:49,616 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c97a0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:28:49, skipping insertion in model container [2018-06-22 11:28:49,616 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:28:49" (3/3) ... [2018-06-22 11:28:49,618 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:28:49,627 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:28:49,638 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:28:49,679 INFO ]: Using default assertion order modulation [2018-06-22 11:28:49,679 INFO ]: Interprodecural is true [2018-06-22 11:28:49,680 INFO ]: Hoare is false [2018-06-22 11:28:49,680 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:28:49,680 INFO ]: Backedges is TWOTRACK [2018-06-22 11:28:49,680 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:28:49,680 INFO ]: Difference is false [2018-06-22 11:28:49,680 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:28:49,680 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:28:49,696 INFO ]: Start isEmpty. Operand 69 states. [2018-06-22 11:28:49,710 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-22 11:28:49,710 INFO ]: Found error trace [2018-06-22 11:28:49,712 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-22 11:28:49,712 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:49,717 INFO ]: Analyzing trace with hash 232991676, now seen corresponding path program 1 times [2018-06-22 11:28:49,719 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:49,719 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:49,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:49,754 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:49,754 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:49,767 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:49,787 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:49,789 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:49,789 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 11:28:49,790 INFO ]: Interpolant automaton has 2 states [2018-06-22 11:28:49,800 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 11:28:49,801 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:28:49,802 INFO ]: Start difference. First operand 69 states. Second operand 2 states. [2018-06-22 11:28:49,831 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:49,831 INFO ]: Finished difference Result 67 states and 101 transitions. [2018-06-22 11:28:49,831 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 11:28:49,832 INFO ]: Start accepts. Automaton has 2 states. Word has length 5 [2018-06-22 11:28:49,832 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:49,855 INFO ]: With dead ends: 67 [2018-06-22 11:28:49,855 INFO ]: Without dead ends: 67 [2018-06-22 11:28:49,856 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 11:28:49,874 INFO ]: Start minimizeSevpa. Operand 67 states. [2018-06-22 11:28:49,916 INFO ]: Finished minimizeSevpa. Reduced states from 67 to 67. [2018-06-22 11:28:49,917 INFO ]: Start removeUnreachable. Operand 67 states. [2018-06-22 11:28:49,921 INFO ]: Finished removeUnreachable. Reduced from 67 states to 67 states and 101 transitions. [2018-06-22 11:28:49,923 INFO ]: Start accepts. Automaton has 67 states and 101 transitions. Word has length 5 [2018-06-22 11:28:49,923 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:49,923 INFO ]: Abstraction has 67 states and 101 transitions. [2018-06-22 11:28:49,923 INFO ]: Interpolant automaton has 2 states. [2018-06-22 11:28:49,923 INFO ]: Start isEmpty. Operand 67 states and 101 transitions. [2018-06-22 11:28:49,925 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:28:49,925 INFO ]: Found error trace [2018-06-22 11:28:49,925 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:49,925 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:49,925 INFO ]: Analyzing trace with hash 859368265, now seen corresponding path program 1 times [2018-06-22 11:28:49,925 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:49,925 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:49,926 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:49,926 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:49,926 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:49,973 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:50,579 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:28:50,579 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:50,579 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:28:50,581 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:28:50,581 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:28:50,581 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:50,581 INFO ]: Start difference. First operand 67 states and 101 transitions. Second operand 7 states. [2018-06-22 11:28:51,009 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:51,009 INFO ]: Finished difference Result 74 states and 117 transitions. [2018-06-22 11:28:51,010 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:28:51,010 INFO ]: Start accepts. Automaton has 7 states. Word has length 17 [2018-06-22 11:28:51,010 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:51,013 INFO ]: With dead ends: 74 [2018-06-22 11:28:51,013 INFO ]: Without dead ends: 74 [2018-06-22 11:28:51,014 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:51,014 INFO ]: Start minimizeSevpa. Operand 74 states. [2018-06-22 11:28:51,033 INFO ]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-06-22 11:28:51,033 INFO ]: Start removeUnreachable. Operand 74 states. [2018-06-22 11:28:51,036 INFO ]: Finished removeUnreachable. Reduced from 74 states to 74 states and 117 transitions. [2018-06-22 11:28:51,036 INFO ]: Start accepts. Automaton has 74 states and 117 transitions. Word has length 17 [2018-06-22 11:28:51,036 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:51,036 INFO ]: Abstraction has 74 states and 117 transitions. [2018-06-22 11:28:51,036 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:28:51,036 INFO ]: Start isEmpty. Operand 74 states and 117 transitions. [2018-06-22 11:28:51,038 INFO ]: Finished isEmpty. Found accepting run of length 46 [2018-06-22 11:28:51,038 INFO ]: Found error trace [2018-06-22 11:28:51,039 INFO ]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:51,039 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:51,039 INFO ]: Analyzing trace with hash 64653756, now seen corresponding path program 1 times [2018-06-22 11:28:51,039 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:51,039 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:51,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:51,040 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:51,040 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:51,072 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:51,291 INFO ]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-06-22 11:28:51,291 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:28:51,291 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-22 11:28:51,291 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:28:51,291 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:28:51,291 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:51,292 INFO ]: Start difference. First operand 74 states and 117 transitions. Second operand 7 states. [2018-06-22 11:28:51,761 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:51,761 INFO ]: Finished difference Result 79 states and 124 transitions. [2018-06-22 11:28:51,762 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:28:51,762 INFO ]: Start accepts. Automaton has 7 states. Word has length 45 [2018-06-22 11:28:51,762 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:51,765 INFO ]: With dead ends: 79 [2018-06-22 11:28:51,765 INFO ]: Without dead ends: 79 [2018-06-22 11:28:51,765 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:28:51,765 INFO ]: Start minimizeSevpa. Operand 79 states. [2018-06-22 11:28:51,780 INFO ]: Finished minimizeSevpa. Reduced states from 79 to 77. [2018-06-22 11:28:51,780 INFO ]: Start removeUnreachable. Operand 77 states. [2018-06-22 11:28:51,784 INFO ]: Finished removeUnreachable. Reduced from 77 states to 77 states and 122 transitions. [2018-06-22 11:28:51,784 INFO ]: Start accepts. Automaton has 77 states and 122 transitions. Word has length 45 [2018-06-22 11:28:51,784 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:51,785 INFO ]: Abstraction has 77 states and 122 transitions. [2018-06-22 11:28:51,785 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:28:51,785 INFO ]: Start isEmpty. Operand 77 states and 122 transitions. [2018-06-22 11:28:51,794 INFO ]: Finished isEmpty. Found accepting run of length 134 [2018-06-22 11:28:51,794 INFO ]: Found error trace [2018-06-22 11:28:51,794 INFO ]: trace histogram [10, 9, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:51,794 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:51,794 INFO ]: Analyzing trace with hash 876939988, now seen corresponding path program 1 times [2018-06-22 11:28:51,794 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:51,794 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:51,797 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:51,797 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:51,797 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:51,863 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:52,055 INFO ]: Checked inductivity of 299 backedges. 40 proven. 37 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2018-06-22 11:28:52,056 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:52,056 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 11:28:52,076 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:52,180 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:52,196 INFO ]: Computing forward predicates... [2018-06-22 11:28:52,318 INFO ]: Checked inductivity of 299 backedges. 30 proven. 60 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2018-06-22 11:28:52,350 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:52,350 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2018-06-22 11:28:52,351 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:28:52,351 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:28:52,351 INFO ]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:28:52,351 INFO ]: Start difference. First operand 77 states and 122 transitions. Second operand 12 states. [2018-06-22 11:28:53,781 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:53,781 INFO ]: Finished difference Result 161 states and 335 transitions. [2018-06-22 11:28:53,781 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-22 11:28:53,781 INFO ]: Start accepts. Automaton has 12 states. Word has length 133 [2018-06-22 11:28:53,781 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:53,786 INFO ]: With dead ends: 161 [2018-06-22 11:28:53,786 INFO ]: Without dead ends: 161 [2018-06-22 11:28:53,787 INFO ]: 0 DeclaredPredicates, 152 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2018-06-22 11:28:53,787 INFO ]: Start minimizeSevpa. Operand 161 states. [2018-06-22 11:28:53,821 INFO ]: Finished minimizeSevpa. Reduced states from 161 to 150. [2018-06-22 11:28:53,821 INFO ]: Start removeUnreachable. Operand 150 states. [2018-06-22 11:28:53,825 INFO ]: Finished removeUnreachable. Reduced from 150 states to 150 states and 305 transitions. [2018-06-22 11:28:53,825 INFO ]: Start accepts. Automaton has 150 states and 305 transitions. Word has length 133 [2018-06-22 11:28:53,826 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:53,826 INFO ]: Abstraction has 150 states and 305 transitions. [2018-06-22 11:28:53,826 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:28:53,826 INFO ]: Start isEmpty. Operand 150 states and 305 transitions. [2018-06-22 11:28:53,830 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 11:28:53,830 INFO ]: Found error trace [2018-06-22 11:28:53,830 INFO ]: trace histogram [8, 7, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:53,830 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:53,830 INFO ]: Analyzing trace with hash -764848799, now seen corresponding path program 1 times [2018-06-22 11:28:53,830 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:53,831 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:53,831 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:53,831 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:53,831 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:53,875 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:54,008 INFO ]: Checked inductivity of 185 backedges. 42 proven. 5 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-06-22 11:28:54,008 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:54,008 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 11:28:54,017 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:54,096 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:54,103 INFO ]: Computing forward predicates... [2018-06-22 11:28:54,182 INFO ]: Checked inductivity of 185 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-06-22 11:28:54,202 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:54,202 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 11 [2018-06-22 11:28:54,203 INFO ]: Interpolant automaton has 11 states [2018-06-22 11:28:54,203 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 11:28:54,203 INFO ]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-06-22 11:28:54,203 INFO ]: Start difference. First operand 150 states and 305 transitions. Second operand 11 states. [2018-06-22 11:28:54,700 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:54,700 INFO ]: Finished difference Result 163 states and 337 transitions. [2018-06-22 11:28:54,728 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 11:28:54,728 INFO ]: Start accepts. Automaton has 11 states. Word has length 105 [2018-06-22 11:28:54,729 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:54,733 INFO ]: With dead ends: 163 [2018-06-22 11:28:54,733 INFO ]: Without dead ends: 163 [2018-06-22 11:28:54,733 INFO ]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:54,733 INFO ]: Start minimizeSevpa. Operand 163 states. [2018-06-22 11:28:54,764 INFO ]: Finished minimizeSevpa. Reduced states from 163 to 153. [2018-06-22 11:28:54,764 INFO ]: Start removeUnreachable. Operand 153 states. [2018-06-22 11:28:54,769 INFO ]: Finished removeUnreachable. Reduced from 153 states to 153 states and 310 transitions. [2018-06-22 11:28:54,769 INFO ]: Start accepts. Automaton has 153 states and 310 transitions. Word has length 105 [2018-06-22 11:28:54,770 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:54,770 INFO ]: Abstraction has 153 states and 310 transitions. [2018-06-22 11:28:54,770 INFO ]: Interpolant automaton has 11 states. [2018-06-22 11:28:54,770 INFO ]: Start isEmpty. Operand 153 states and 310 transitions. [2018-06-22 11:28:54,775 INFO ]: Finished isEmpty. Found accepting run of length 222 [2018-06-22 11:28:54,775 INFO ]: Found error trace [2018-06-22 11:28:54,776 INFO ]: trace histogram [17, 15, 12, 12, 12, 12, 8, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:54,776 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:54,776 INFO ]: Analyzing trace with hash -1561448980, now seen corresponding path program 2 times [2018-06-22 11:28:54,776 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:54,776 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:54,777 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:54,777 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:28:54,777 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:54,844 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:55,060 INFO ]: Checked inductivity of 934 backedges. 91 proven. 124 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2018-06-22 11:28:55,060 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:55,060 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:28:55,066 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:28:55,190 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:28:55,191 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:55,202 INFO ]: Computing forward predicates... [2018-06-22 11:28:55,342 INFO ]: Checked inductivity of 934 backedges. 569 proven. 31 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2018-06-22 11:28:55,375 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:55,375 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 14 [2018-06-22 11:28:55,377 INFO ]: Interpolant automaton has 14 states [2018-06-22 11:28:55,377 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 11:28:55,377 INFO ]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:28:55,377 INFO ]: Start difference. First operand 153 states and 310 transitions. Second operand 14 states. [2018-06-22 11:28:56,470 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:56,470 INFO ]: Finished difference Result 165 states and 340 transitions. [2018-06-22 11:28:56,471 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-06-22 11:28:56,471 INFO ]: Start accepts. Automaton has 14 states. Word has length 221 [2018-06-22 11:28:56,471 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:56,475 INFO ]: With dead ends: 165 [2018-06-22 11:28:56,475 INFO ]: Without dead ends: 165 [2018-06-22 11:28:56,475 INFO ]: 0 DeclaredPredicates, 238 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:28:56,475 INFO ]: Start minimizeSevpa. Operand 165 states. [2018-06-22 11:28:56,497 INFO ]: Finished minimizeSevpa. Reduced states from 165 to 157. [2018-06-22 11:28:56,497 INFO ]: Start removeUnreachable. Operand 157 states. [2018-06-22 11:28:56,500 INFO ]: Finished removeUnreachable. Reduced from 157 states to 157 states and 315 transitions. [2018-06-22 11:28:56,500 INFO ]: Start accepts. Automaton has 157 states and 315 transitions. Word has length 221 [2018-06-22 11:28:56,501 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:56,501 INFO ]: Abstraction has 157 states and 315 transitions. [2018-06-22 11:28:56,501 INFO ]: Interpolant automaton has 14 states. [2018-06-22 11:28:56,501 INFO ]: Start isEmpty. Operand 157 states and 315 transitions. [2018-06-22 11:28:56,521 INFO ]: Finished isEmpty. Found accepting run of length 306 [2018-06-22 11:28:56,521 INFO ]: Found error trace [2018-06-22 11:28:56,521 INFO ]: trace histogram [23, 21, 15, 15, 15, 15, 11, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:56,521 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:56,522 INFO ]: Analyzing trace with hash 176002629, now seen corresponding path program 3 times [2018-06-22 11:28:56,522 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:56,522 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:56,522 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:56,522 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:56,522 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:56,577 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:56,904 INFO ]: Checked inductivity of 1774 backedges. 134 proven. 123 refuted. 0 times theorem prover too weak. 1517 trivial. 0 not checked. [2018-06-22 11:28:56,904 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:56,904 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:28:56,915 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:28:57,014 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-06-22 11:28:57,014 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:57,024 INFO ]: Computing forward predicates... [2018-06-22 11:28:57,598 INFO ]: Checked inductivity of 1774 backedges. 55 proven. 26 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2018-06-22 11:28:57,621 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:28:57,622 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2018-06-22 11:28:57,622 INFO ]: Interpolant automaton has 17 states [2018-06-22 11:28:57,623 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 11:28:57,623 INFO ]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:28:57,623 INFO ]: Start difference. First operand 157 states and 315 transitions. Second operand 17 states. [2018-06-22 11:28:59,414 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:28:59,414 INFO ]: Finished difference Result 253 states and 612 transitions. [2018-06-22 11:28:59,415 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 11:28:59,415 INFO ]: Start accepts. Automaton has 17 states. Word has length 305 [2018-06-22 11:28:59,418 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:28:59,426 INFO ]: With dead ends: 253 [2018-06-22 11:28:59,430 INFO ]: Without dead ends: 253 [2018-06-22 11:28:59,430 INFO ]: 0 DeclaredPredicates, 322 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2018-06-22 11:28:59,431 INFO ]: Start minimizeSevpa. Operand 253 states. [2018-06-22 11:28:59,487 INFO ]: Finished minimizeSevpa. Reduced states from 253 to 236. [2018-06-22 11:28:59,488 INFO ]: Start removeUnreachable. Operand 236 states. [2018-06-22 11:28:59,492 INFO ]: Finished removeUnreachable. Reduced from 236 states to 236 states and 558 transitions. [2018-06-22 11:28:59,492 INFO ]: Start accepts. Automaton has 236 states and 558 transitions. Word has length 305 [2018-06-22 11:28:59,493 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:28:59,493 INFO ]: Abstraction has 236 states and 558 transitions. [2018-06-22 11:28:59,493 INFO ]: Interpolant automaton has 17 states. [2018-06-22 11:28:59,493 INFO ]: Start isEmpty. Operand 236 states and 558 transitions. [2018-06-22 11:28:59,497 INFO ]: Finished isEmpty. Found accepting run of length 198 [2018-06-22 11:28:59,497 INFO ]: Found error trace [2018-06-22 11:28:59,498 INFO ]: trace histogram [15, 14, 11, 11, 11, 11, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:28:59,498 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:28:59,498 INFO ]: Analyzing trace with hash -663597911, now seen corresponding path program 1 times [2018-06-22 11:28:59,498 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:28:59,498 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:28:59,499 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:59,499 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:28:59,499 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:28:59,530 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:28:59,946 INFO ]: Checked inductivity of 719 backedges. 74 proven. 57 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2018-06-22 11:28:59,946 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:28:59,946 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:28:59,951 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:00,015 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:00,019 INFO ]: Computing forward predicates... [2018-06-22 11:29:00,110 INFO ]: Checked inductivity of 719 backedges. 412 proven. 25 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2018-06-22 11:29:00,129 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:00,129 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2018-06-22 11:29:00,130 INFO ]: Interpolant automaton has 16 states [2018-06-22 11:29:00,130 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 11:29:00,130 INFO ]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-06-22 11:29:00,130 INFO ]: Start difference. First operand 236 states and 558 transitions. Second operand 16 states. [2018-06-22 11:29:01,052 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:01,052 INFO ]: Finished difference Result 330 states and 910 transitions. [2018-06-22 11:29:01,053 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-06-22 11:29:01,053 INFO ]: Start accepts. Automaton has 16 states. Word has length 197 [2018-06-22 11:29:01,053 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:01,061 INFO ]: With dead ends: 330 [2018-06-22 11:29:01,061 INFO ]: Without dead ends: 330 [2018-06-22 11:29:01,062 INFO ]: 0 DeclaredPredicates, 220 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2018-06-22 11:29:01,062 INFO ]: Start minimizeSevpa. Operand 330 states. [2018-06-22 11:29:01,123 INFO ]: Finished minimizeSevpa. Reduced states from 330 to 277. [2018-06-22 11:29:01,123 INFO ]: Start removeUnreachable. Operand 277 states. [2018-06-22 11:29:01,128 INFO ]: Finished removeUnreachable. Reduced from 277 states to 277 states and 702 transitions. [2018-06-22 11:29:01,128 INFO ]: Start accepts. Automaton has 277 states and 702 transitions. Word has length 197 [2018-06-22 11:29:01,129 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:01,129 INFO ]: Abstraction has 277 states and 702 transitions. [2018-06-22 11:29:01,129 INFO ]: Interpolant automaton has 16 states. [2018-06-22 11:29:01,129 INFO ]: Start isEmpty. Operand 277 states and 702 transitions. [2018-06-22 11:29:01,135 INFO ]: Finished isEmpty. Found accepting run of length 286 [2018-06-22 11:29:01,135 INFO ]: Found error trace [2018-06-22 11:29:01,135 INFO ]: trace histogram [22, 20, 16, 16, 16, 16, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:01,135 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:01,135 INFO ]: Analyzing trace with hash -310349119, now seen corresponding path program 1 times [2018-06-22 11:29:01,135 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:01,135 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:01,136 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:01,136 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:01,136 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:01,211 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:01,633 INFO ]: Checked inductivity of 1602 backedges. 90 proven. 15 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2018-06-22 11:29:01,633 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:01,633 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 11:29:01,646 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:01,774 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:01,786 INFO ]: Computing forward predicates... [2018-06-22 11:29:02,061 WARN ]: Spent 125.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-06-22 11:29:02,245 INFO ]: Checked inductivity of 1602 backedges. 90 proven. 98 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2018-06-22 11:29:02,271 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:02,271 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11] total 14 [2018-06-22 11:29:02,271 INFO ]: Interpolant automaton has 14 states [2018-06-22 11:29:02,271 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 11:29:02,271 INFO ]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-06-22 11:29:02,272 INFO ]: Start difference. First operand 277 states and 702 transitions. Second operand 14 states. [2018-06-22 11:29:03,214 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:03,214 INFO ]: Finished difference Result 620 states and 2057 transitions. [2018-06-22 11:29:03,217 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 11:29:03,217 INFO ]: Start accepts. Automaton has 14 states. Word has length 285 [2018-06-22 11:29:03,218 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:03,231 INFO ]: With dead ends: 620 [2018-06-22 11:29:03,231 INFO ]: Without dead ends: 540 [2018-06-22 11:29:03,231 INFO ]: 0 DeclaredPredicates, 305 GetRequests, 284 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2018-06-22 11:29:03,232 INFO ]: Start minimizeSevpa. Operand 540 states. [2018-06-22 11:29:03,329 INFO ]: Finished minimizeSevpa. Reduced states from 540 to 473. [2018-06-22 11:29:03,329 INFO ]: Start removeUnreachable. Operand 473 states. [2018-06-22 11:29:03,338 INFO ]: Finished removeUnreachable. Reduced from 473 states to 473 states and 1500 transitions. [2018-06-22 11:29:03,338 INFO ]: Start accepts. Automaton has 473 states and 1500 transitions. Word has length 285 [2018-06-22 11:29:03,339 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:03,339 INFO ]: Abstraction has 473 states and 1500 transitions. [2018-06-22 11:29:03,340 INFO ]: Interpolant automaton has 14 states. [2018-06-22 11:29:03,340 INFO ]: Start isEmpty. Operand 473 states and 1500 transitions. [2018-06-22 11:29:03,355 INFO ]: Finished isEmpty. Found accepting run of length 998 [2018-06-22 11:29:03,356 INFO ]: Found error trace [2018-06-22 11:29:03,357 INFO ]: trace histogram [78, 70, 56, 56, 56, 56, 34, 34, 34, 34, 33, 33, 33, 33, 22, 22, 22, 22, 22, 22, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:03,357 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:03,357 INFO ]: Analyzing trace with hash 332860138, now seen corresponding path program 1 times [2018-06-22 11:29:03,357 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:03,357 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:03,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:03,358 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:03,358 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:03,526 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:04,340 INFO ]: Checked inductivity of 21303 backedges. 468 proven. 308 refuted. 0 times theorem prover too weak. 20527 trivial. 0 not checked. [2018-06-22 11:29:04,341 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:04,341 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:04,347 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:04,702 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:04,737 INFO ]: Computing forward predicates... [2018-06-22 11:29:05,439 INFO ]: Checked inductivity of 21303 backedges. 8674 proven. 134 refuted. 0 times theorem prover too weak. 12495 trivial. 0 not checked. [2018-06-22 11:29:05,461 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:05,461 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15] total 21 [2018-06-22 11:29:05,462 INFO ]: Interpolant automaton has 21 states [2018-06-22 11:29:05,462 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 11:29:05,462 INFO ]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2018-06-22 11:29:05,463 INFO ]: Start difference. First operand 473 states and 1500 transitions. Second operand 21 states. [2018-06-22 11:29:08,419 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:08,419 INFO ]: Finished difference Result 915 states and 3496 transitions. [2018-06-22 11:29:08,420 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-06-22 11:29:08,420 INFO ]: Start accepts. Automaton has 21 states. Word has length 997 [2018-06-22 11:29:08,420 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:08,443 INFO ]: With dead ends: 915 [2018-06-22 11:29:08,443 INFO ]: Without dead ends: 853 [2018-06-22 11:29:08,444 INFO ]: 0 DeclaredPredicates, 1029 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2018-06-22 11:29:08,444 INFO ]: Start minimizeSevpa. Operand 853 states. [2018-06-22 11:29:08,569 INFO ]: Finished minimizeSevpa. Reduced states from 853 to 670. [2018-06-22 11:29:08,570 INFO ]: Start removeUnreachable. Operand 670 states. [2018-06-22 11:29:08,583 INFO ]: Finished removeUnreachable. Reduced from 670 states to 670 states and 2346 transitions. [2018-06-22 11:29:08,583 INFO ]: Start accepts. Automaton has 670 states and 2346 transitions. Word has length 997 [2018-06-22 11:29:08,584 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:08,584 INFO ]: Abstraction has 670 states and 2346 transitions. [2018-06-22 11:29:08,584 INFO ]: Interpolant automaton has 21 states. [2018-06-22 11:29:08,584 INFO ]: Start isEmpty. Operand 670 states and 2346 transitions. [2018-06-22 11:29:08,614 INFO ]: Finished isEmpty. Found accepting run of length 1818 [2018-06-22 11:29:08,614 INFO ]: Found error trace [2018-06-22 11:29:08,615 INFO ]: trace histogram [143, 126, 102, 102, 102, 102, 62, 61, 61, 61, 61, 61, 61, 61, 41, 41, 41, 41, 41, 41, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:08,615 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:08,615 INFO ]: Analyzing trace with hash -1480940363, now seen corresponding path program 1 times [2018-06-22 11:29:08,615 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:08,615 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:08,616 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:08,616 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:08,616 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:08,875 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:10,827 INFO ]: Checked inductivity of 72356 backedges. 789 proven. 365 refuted. 0 times theorem prover too weak. 71202 trivial. 0 not checked. [2018-06-22 11:29:10,827 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:10,827 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:10,839 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:11,613 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:11,669 INFO ]: Computing forward predicates... [2018-06-22 11:29:14,233 INFO ]: Checked inductivity of 72356 backedges. 33314 proven. 928 refuted. 0 times theorem prover too weak. 38114 trivial. 0 not checked. [2018-06-22 11:29:14,272 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:14,273 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15] total 17 [2018-06-22 11:29:14,275 INFO ]: Interpolant automaton has 17 states [2018-06-22 11:29:14,275 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 11:29:14,275 INFO ]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:29:14,275 INFO ]: Start difference. First operand 670 states and 2346 transitions. Second operand 17 states. [2018-06-22 11:29:16,701 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:16,701 INFO ]: Finished difference Result 1049 states and 3714 transitions. [2018-06-22 11:29:16,701 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-06-22 11:29:16,701 INFO ]: Start accepts. Automaton has 17 states. Word has length 1817 [2018-06-22 11:29:16,704 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:16,728 INFO ]: With dead ends: 1049 [2018-06-22 11:29:16,729 INFO ]: Without dead ends: 1035 [2018-06-22 11:29:16,729 INFO ]: 0 DeclaredPredicates, 1856 GetRequests, 1821 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2018-06-22 11:29:16,730 INFO ]: Start minimizeSevpa. Operand 1035 states. [2018-06-22 11:29:16,863 INFO ]: Finished minimizeSevpa. Reduced states from 1035 to 741. [2018-06-22 11:29:16,863 INFO ]: Start removeUnreachable. Operand 741 states. [2018-06-22 11:29:16,879 INFO ]: Finished removeUnreachable. Reduced from 741 states to 741 states and 2544 transitions. [2018-06-22 11:29:16,879 INFO ]: Start accepts. Automaton has 741 states and 2544 transitions. Word has length 1817 [2018-06-22 11:29:16,881 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:16,882 INFO ]: Abstraction has 741 states and 2544 transitions. [2018-06-22 11:29:16,882 INFO ]: Interpolant automaton has 17 states. [2018-06-22 11:29:16,882 INFO ]: Start isEmpty. Operand 741 states and 2544 transitions. [2018-06-22 11:29:16,917 INFO ]: Finished isEmpty. Found accepting run of length 1966 [2018-06-22 11:29:16,917 INFO ]: Found error trace [2018-06-22 11:29:16,918 INFO ]: trace histogram [155, 136, 111, 111, 111, 111, 67, 67, 67, 67, 66, 66, 66, 66, 44, 44, 44, 44, 44, 44, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 18, 18, 18, 18, 18, 18, 18, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:16,918 INFO ]: === Iteration 12 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:16,919 INFO ]: Analyzing trace with hash -5953550, now seen corresponding path program 2 times [2018-06-22 11:29:16,919 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:16,919 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:16,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:16,920 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:29:16,920 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:17,224 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:19,466 INFO ]: Checked inductivity of 85158 backedges. 902 proven. 408 refuted. 0 times theorem prover too weak. 83848 trivial. 0 not checked. [2018-06-22 11:29:19,467 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:19,467 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:19,474 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:29:20,102 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:29:20,102 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:20,151 INFO ]: Computing forward predicates... [2018-06-22 11:29:21,447 INFO ]: Checked inductivity of 85158 backedges. 34275 proven. 313 refuted. 0 times theorem prover too weak. 50570 trivial. 0 not checked. [2018-06-22 11:29:21,471 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:21,471 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 15] total 21 [2018-06-22 11:29:21,473 INFO ]: Interpolant automaton has 21 states [2018-06-22 11:29:21,473 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 11:29:21,473 INFO ]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2018-06-22 11:29:21,473 INFO ]: Start difference. First operand 741 states and 2544 transitions. Second operand 21 states. [2018-06-22 11:29:23,576 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:23,576 INFO ]: Finished difference Result 1231 states and 4661 transitions. [2018-06-22 11:29:23,576 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-06-22 11:29:23,576 INFO ]: Start accepts. Automaton has 21 states. Word has length 1965 [2018-06-22 11:29:23,578 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:23,605 INFO ]: With dead ends: 1231 [2018-06-22 11:29:23,605 INFO ]: Without dead ends: 1228 [2018-06-22 11:29:23,606 INFO ]: 0 DeclaredPredicates, 2008 GetRequests, 1968 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=193, Invalid=1529, Unknown=0, NotChecked=0, Total=1722 [2018-06-22 11:29:23,607 INFO ]: Start minimizeSevpa. Operand 1228 states. [2018-06-22 11:29:23,774 INFO ]: Finished minimizeSevpa. Reduced states from 1228 to 1002. [2018-06-22 11:29:23,774 INFO ]: Start removeUnreachable. Operand 1002 states. [2018-06-22 11:29:23,791 INFO ]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 3713 transitions. [2018-06-22 11:29:23,791 INFO ]: Start accepts. Automaton has 1002 states and 3713 transitions. Word has length 1965 [2018-06-22 11:29:23,792 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:23,792 INFO ]: Abstraction has 1002 states and 3713 transitions. [2018-06-22 11:29:23,792 INFO ]: Interpolant automaton has 21 states. [2018-06-22 11:29:23,792 INFO ]: Start isEmpty. Operand 1002 states and 3713 transitions. [2018-06-22 11:29:23,862 INFO ]: Finished isEmpty. Found accepting run of length 2938 [2018-06-22 11:29:23,862 INFO ]: Found error trace [2018-06-22 11:29:23,864 INFO ]: trace histogram [232, 203, 166, 166, 166, 166, 100, 100, 100, 100, 99, 99, 99, 99, 66, 66, 66, 66, 66, 66, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 27, 27, 27, 27, 27, 27, 27, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:23,864 INFO ]: === Iteration 13 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:23,864 INFO ]: Analyzing trace with hash -443384790, now seen corresponding path program 3 times [2018-06-22 11:29:23,864 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:23,864 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:23,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:23,865 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:29:23,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:24,272 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:27,798 INFO ]: Checked inductivity of 191457 backedges. 2179 proven. 1332 refuted. 0 times theorem prover too weak. 187946 trivial. 0 not checked. [2018-06-22 11:29:27,798 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:27,798 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:27,804 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 11:29:28,063 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2018-06-22 11:29:28,063 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:28,110 INFO ]: Computing forward predicates... [2018-06-22 11:29:31,062 INFO ]: Checked inductivity of 191457 backedges. 79276 proven. 373 refuted. 0 times theorem prover too weak. 111808 trivial. 0 not checked. [2018-06-22 11:29:31,083 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:31,113 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2018-06-22 11:29:31,115 INFO ]: Interpolant automaton has 21 states [2018-06-22 11:29:31,115 INFO ]: Constructing interpolant automaton starting with 21 interpolants. [2018-06-22 11:29:31,115 INFO ]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2018-06-22 11:29:31,115 INFO ]: Start difference. First operand 1002 states and 3713 transitions. Second operand 21 states. [2018-06-22 11:29:32,493 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:32,494 INFO ]: Finished difference Result 1069 states and 3930 transitions. [2018-06-22 11:29:32,494 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-06-22 11:29:32,494 INFO ]: Start accepts. Automaton has 21 states. Word has length 2937 [2018-06-22 11:29:32,497 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:32,515 INFO ]: With dead ends: 1069 [2018-06-22 11:29:32,515 INFO ]: Without dead ends: 994 [2018-06-22 11:29:32,515 INFO ]: 0 DeclaredPredicates, 2965 GetRequests, 2933 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2018-06-22 11:29:32,516 INFO ]: Start minimizeSevpa. Operand 994 states. [2018-06-22 11:29:32,640 INFO ]: Finished minimizeSevpa. Reduced states from 994 to 931. [2018-06-22 11:29:32,640 INFO ]: Start removeUnreachable. Operand 931 states. [2018-06-22 11:29:32,656 INFO ]: Finished removeUnreachable. Reduced from 931 states to 931 states and 3449 transitions. [2018-06-22 11:29:32,656 INFO ]: Start accepts. Automaton has 931 states and 3449 transitions. Word has length 2937 [2018-06-22 11:29:32,658 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:32,658 INFO ]: Abstraction has 931 states and 3449 transitions. [2018-06-22 11:29:32,658 INFO ]: Interpolant automaton has 21 states. [2018-06-22 11:29:32,658 INFO ]: Start isEmpty. Operand 931 states and 3449 transitions. [2018-06-22 11:29:32,722 INFO ]: Finished isEmpty. Found accepting run of length 2846 [2018-06-22 11:29:32,722 INFO ]: Found error trace [2018-06-22 11:29:32,723 INFO ]: trace histogram [225, 196, 161, 161, 161, 161, 97, 97, 97, 97, 96, 96, 96, 96, 64, 64, 64, 64, 64, 64, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 28, 28, 28, 28, 28, 28, 28, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:29:32,723 INFO ]: === Iteration 14 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:29:32,724 INFO ]: Analyzing trace with hash -958654238, now seen corresponding path program 4 times [2018-06-22 11:29:32,724 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:29:32,724 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:29:32,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:32,725 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:29:32,725 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:29:33,056 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:36,782 INFO ]: Checked inductivity of 180168 backedges. 2294 proven. 1108 refuted. 0 times theorem prover too weak. 176766 trivial. 0 not checked. [2018-06-22 11:29:36,783 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:29:36,783 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:29:36,788 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 11:29:37,675 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 11:29:37,675 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:29:37,727 INFO ]: Computing forward predicates... [2018-06-22 11:29:41,402 INFO ]: Checked inductivity of 180168 backedges. 62537 proven. 2530 refuted. 0 times theorem prover too weak. 115101 trivial. 0 not checked. [2018-06-22 11:29:41,431 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:29:41,431 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 19 [2018-06-22 11:29:41,433 INFO ]: Interpolant automaton has 19 states [2018-06-22 11:29:41,433 INFO ]: Constructing interpolant automaton starting with 19 interpolants. [2018-06-22 11:29:41,433 INFO ]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2018-06-22 11:29:41,433 INFO ]: Start difference. First operand 931 states and 3449 transitions. Second operand 19 states. [2018-06-22 11:29:43,811 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:29:43,811 INFO ]: Finished difference Result 3251 states and 14241 transitions. [2018-06-22 11:29:43,811 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-06-22 11:29:43,811 INFO ]: Start accepts. Automaton has 19 states. Word has length 2845 [2018-06-22 11:29:43,816 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:29:43,897 INFO ]: With dead ends: 3251 [2018-06-22 11:29:43,897 INFO ]: Without dead ends: 3251 [2018-06-22 11:29:43,898 INFO ]: 0 DeclaredPredicates, 2900 GetRequests, 2857 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=237, Invalid=1743, Unknown=0, NotChecked=0, Total=1980 [2018-06-22 11:29:43,900 INFO ]: Start minimizeSevpa. Operand 3251 states. [2018-06-22 11:29:44,420 INFO ]: Finished minimizeSevpa. Reduced states from 3251 to 1988. [2018-06-22 11:29:44,420 INFO ]: Start removeUnreachable. Operand 1988 states. [2018-06-22 11:29:44,456 INFO ]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 8423 transitions. [2018-06-22 11:29:44,456 INFO ]: Start accepts. Automaton has 1988 states and 8423 transitions. Word has length 2845 [2018-06-22 11:29:44,459 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:29:44,459 INFO ]: Abstraction has 1988 states and 8423 transitions. [2018-06-22 11:29:44,459 INFO ]: Interpolant automaton has 19 states. [2018-06-22 11:29:44,459 INFO ]: Start isEmpty. Operand 1988 states and 8423 transitions. Received shutdown request... [2018-06-22 11:29:44,482 WARN ]: Verification canceled [2018-06-22 11:29:44,840 WARN ]: Timeout [2018-06-22 11:29:44,840 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:29:44 BoogieIcfgContainer [2018-06-22 11:29:44,840 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:29:44,846 INFO ]: Toolchain (without parser) took 55940.87 ms. Allocated memory was 305.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 256.2 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 11:29:44,847 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:29:44,848 INFO ]: ChcToBoogie took 56.21 ms. Allocated memory is still 305.7 MB. Free memory was 256.2 MB in the beginning and 254.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:29:44,848 INFO ]: Boogie Preprocessor took 51.53 ms. Allocated memory is still 305.7 MB. Free memory was 253.2 MB in the beginning and 252.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-22 11:29:44,848 INFO ]: RCFGBuilder took 591.06 ms. Allocated memory is still 305.7 MB. Free memory was 252.2 MB in the beginning and 233.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:29:44,849 INFO ]: TraceAbstraction took 55227.86 ms. Allocated memory was 305.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 233.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 11:29:44,856 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 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 56.21 ms. Allocated memory is still 305.7 MB. Free memory was 256.2 MB in the beginning and 254.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 51.53 ms. Allocated memory is still 305.7 MB. Free memory was 253.2 MB in the beginning and 252.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 591.06 ms. Allocated memory is still 305.7 MB. Free memory was 252.2 MB in the beginning and 233.1 MB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 55227.86 ms. Allocated memory was 305.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 233.1 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.2 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 IsEmpty was searching accepting run (input had 1988 states). - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 69 locations, 1 error locations. TIMEOUT Result, 55.1s OverallTime, 14 OverallIterations, 232 TraceHistogramMax, 19.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1778 SDtfs, 215 SDslu, 16818 SDs, 0 SdLazy, 18814 SolverSat, 2063 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12130 GetRequests, 11828 SyntacticMatches, 3 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1363 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1988occurred in iteration=14, 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: 1.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 2197 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 20.6s InterpolantComputationTime, 23681 NumberOfCodeBlocks, 20865 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 23656 ConstructedInterpolants, 0 QuantifiedInterpolants, 51679416 SizeOfPredicates, 83 NumberOfNonLiveVariables, 29758 ConjunctsInSsa, 201 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 1103498/1111926 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/dotprod_lin.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-29-44-868.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dotprod_lin.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-29-44-868.csv Completed graceful shutdown