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/HOLA/19.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:50:39,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:50:39,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:50:39,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:50:39,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:50:39,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:50:39,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:50:39,540 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:50:39,542 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:50:39,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:50:39,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:50:39,543 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:50:39,544 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:50:39,545 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:50:39,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:50:39,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:50:39,549 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:50:39,551 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:50:39,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:50:39,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:50:39,554 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:50:39,557 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:50:39,557 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:50:39,558 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:50:39,559 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:50:39,560 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:50:39,560 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:50:39,561 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:50:39,562 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:50:39,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:50:39,563 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:50:39,564 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:50:39,564 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:50:39,565 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:50:39,566 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:50:39,566 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 10:50:39,579 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:50:39,579 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:50:39,580 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:50:39,580 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:50:39,581 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:50:39,581 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:50:39,582 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:50:39,582 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:50:39,582 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:50:39,582 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:50:39,582 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:50:39,583 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:50:39,583 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:50:39,583 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:50:39,583 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:50:39,584 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:50:39,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:50:39,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:50:39,584 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:50:39,586 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:50:39,587 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:50:39,628 INFO ]: Repository-Root is: /tmp [2018-06-22 10:50:39,642 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:50:39,645 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:50:39,646 INFO ]: Initializing SmtParser... [2018-06-22 10:50:39,646 INFO ]: SmtParser initialized [2018-06-22 10:50:39,647 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 [2018-06-22 10:50:39,647 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 10:50:39,726 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 unknown [2018-06-22 10:50:40,128 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/19.c.smt2 [2018-06-22 10:50:40,138 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:50:40,148 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:50:40,149 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:50:40,149 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:50:40,149 INFO ]: ChcToBoogie initialized [2018-06-22 10:50:40,157 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,235 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40 Unit [2018-06-22 10:50:40,235 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:50:40,236 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:50:40,236 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:50:40,236 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:50:40,254 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,254 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,265 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,265 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,280 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,282 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,284 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (1/1) ... [2018-06-22 10:50:40,286 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:50:40,287 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:50:40,287 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:50:40,287 INFO ]: RCFGBuilder initialized [2018-06-22 10:50:40,297 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (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 10:50:40,308 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:50:40,308 INFO ]: Found specification of procedure False [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure False [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h24 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h24 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h24 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h22 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h22 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h22 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h17 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h17 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h16 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h16 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h16 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h15 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h15 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h12 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h12 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h12 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h11 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h11 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h11 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h21 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h21 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h21 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h18 [2018-06-22 10:50:40,309 INFO ]: Found implementation of procedure h18 [2018-06-22 10:50:40,309 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:50:40,309 INFO ]: Found specification of procedure h14 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h14 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h13 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h13 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h13 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h10 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h10 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h9 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h9 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h8 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h8 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h7 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h7 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h6 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h6 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h5 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h5 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h4 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h4 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h3 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h3 [2018-06-22 10:50:40,310 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:50:40,310 INFO ]: Found specification of procedure h2 [2018-06-22 10:50:40,310 INFO ]: Found implementation of procedure h2 [2018-06-22 10:50:40,311 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:50:40,311 INFO ]: Found specification of procedure h1 [2018-06-22 10:50:40,311 INFO ]: Found implementation of procedure h1 [2018-06-22 10:50:40,311 INFO ]: Specification and implementation of procedure h20 given in one single declaration [2018-06-22 10:50:40,311 INFO ]: Found specification of procedure h20 [2018-06-22 10:50:40,311 INFO ]: Found implementation of procedure h20 [2018-06-22 10:50:40,311 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:50:40,311 INFO ]: Found specification of procedure h19 [2018-06-22 10:50:40,311 INFO ]: Found implementation of procedure h19 [2018-06-22 10:50:40,311 INFO ]: Specification and implementation of procedure h23 given in one single declaration [2018-06-22 10:50:40,311 INFO ]: Found specification of procedure h23 [2018-06-22 10:50:40,311 INFO ]: Found implementation of procedure h23 [2018-06-22 10:50:40,311 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:50:40,311 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:50:40,311 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 10:50:40,760 INFO ]: Using library mode [2018-06-22 10:50:40,762 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:50:40 BoogieIcfgContainer [2018-06-22 10:50:40,762 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:50:40,764 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:50:40,764 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:50:40,772 INFO ]: TraceAbstraction initialized [2018-06-22 10:50:40,773 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:50:40" (1/3) ... [2018-06-22 10:50:40,773 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1d93e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:50:40, skipping insertion in model container [2018-06-22 10:50:40,773 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:50:40" (2/3) ... [2018-06-22 10:50:40,773 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1d93e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:50:40, skipping insertion in model container [2018-06-22 10:50:40,773 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:50:40" (3/3) ... [2018-06-22 10:50:40,775 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:50:40,785 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:50:40,796 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:50:40,829 INFO ]: Using default assertion order modulation [2018-06-22 10:50:40,830 INFO ]: Interprodecural is true [2018-06-22 10:50:40,830 INFO ]: Hoare is false [2018-06-22 10:50:40,830 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:50:40,830 INFO ]: Backedges is TWOTRACK [2018-06-22 10:50:40,830 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:50:40,830 INFO ]: Difference is false [2018-06-22 10:50:40,830 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:50:40,830 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:50:40,846 INFO ]: Start isEmpty. Operand 107 states. [2018-06-22 10:50:40,862 INFO ]: Finished isEmpty. Found accepting run of length 74 [2018-06-22 10:50:40,862 INFO ]: Found error trace [2018-06-22 10:50:40,863 INFO ]: trace histogram [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, 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 10:50:40,863 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:40,866 INFO ]: Analyzing trace with hash -187545388, now seen corresponding path program 1 times [2018-06-22 10:50:40,868 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:40,868 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:40,899 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:40,899 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:40,899 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:40,983 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:41,526 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:50:41,531 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:50:41,531 INFO ]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-06-22 10:50:41,533 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:50:41,545 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:50:41,545 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:50:41,547 INFO ]: Start difference. First operand 107 states. Second operand 14 states. [2018-06-22 10:50:42,154 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:42,154 INFO ]: Finished difference Result 117 states and 123 transitions. [2018-06-22 10:50:42,155 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 10:50:42,156 INFO ]: Start accepts. Automaton has 14 states. Word has length 73 [2018-06-22 10:50:42,156 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:42,166 INFO ]: With dead ends: 117 [2018-06-22 10:50:42,166 INFO ]: Without dead ends: 117 [2018-06-22 10:50:42,168 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-06-22 10:50:42,182 INFO ]: Start minimizeSevpa. Operand 117 states. [2018-06-22 10:50:42,226 INFO ]: Finished minimizeSevpa. Reduced states from 117 to 117. [2018-06-22 10:50:42,228 INFO ]: Start removeUnreachable. Operand 117 states. [2018-06-22 10:50:42,231 INFO ]: Finished removeUnreachable. Reduced from 117 states to 117 states and 123 transitions. [2018-06-22 10:50:42,232 INFO ]: Start accepts. Automaton has 117 states and 123 transitions. Word has length 73 [2018-06-22 10:50:42,233 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:42,233 INFO ]: Abstraction has 117 states and 123 transitions. [2018-06-22 10:50:42,233 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:50:42,233 INFO ]: Start isEmpty. Operand 117 states and 123 transitions. [2018-06-22 10:50:42,237 INFO ]: Finished isEmpty. Found accepting run of length 74 [2018-06-22 10:50:42,237 INFO ]: Found error trace [2018-06-22 10:50:42,237 INFO ]: trace histogram [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, 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 10:50:42,237 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:42,237 INFO ]: Analyzing trace with hash 542786929, now seen corresponding path program 1 times [2018-06-22 10:50:42,237 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:42,237 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:42,238 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:42,238 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:42,238 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:42,284 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:43,095 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:50:43,095 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:50:43,095 INFO ]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2018-06-22 10:50:43,097 INFO ]: Interpolant automaton has 17 states [2018-06-22 10:50:43,097 INFO ]: Constructing interpolant automaton starting with 17 interpolants. [2018-06-22 10:50:43,097 INFO ]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2018-06-22 10:50:43,097 INFO ]: Start difference. First operand 117 states and 123 transitions. Second operand 17 states. [2018-06-22 10:50:43,753 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:43,753 INFO ]: Finished difference Result 117 states and 122 transitions. [2018-06-22 10:50:43,754 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-06-22 10:50:43,754 INFO ]: Start accepts. Automaton has 17 states. Word has length 73 [2018-06-22 10:50:43,755 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:43,757 INFO ]: With dead ends: 117 [2018-06-22 10:50:43,757 INFO ]: Without dead ends: 109 [2018-06-22 10:50:43,758 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2018-06-22 10:50:43,758 INFO ]: Start minimizeSevpa. Operand 109 states. [2018-06-22 10:50:43,776 INFO ]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-06-22 10:50:43,776 INFO ]: Start removeUnreachable. Operand 109 states. [2018-06-22 10:50:43,780 INFO ]: Finished removeUnreachable. Reduced from 109 states to 109 states and 114 transitions. [2018-06-22 10:50:43,780 INFO ]: Start accepts. Automaton has 109 states and 114 transitions. Word has length 73 [2018-06-22 10:50:43,780 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:43,780 INFO ]: Abstraction has 109 states and 114 transitions. [2018-06-22 10:50:43,780 INFO ]: Interpolant automaton has 17 states. [2018-06-22 10:50:43,780 INFO ]: Start isEmpty. Operand 109 states and 114 transitions. [2018-06-22 10:50:43,785 INFO ]: Finished isEmpty. Found accepting run of length 98 [2018-06-22 10:50:43,785 INFO ]: Found error trace [2018-06-22 10:50:43,785 INFO ]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:43,785 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:43,785 INFO ]: Analyzing trace with hash 1468800579, now seen corresponding path program 1 times [2018-06-22 10:50:43,785 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:43,785 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:43,786 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:43,786 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:43,786 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:43,813 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:44,167 INFO ]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:50:44,167 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:50:44,167 INFO ]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-06-22 10:50:44,167 INFO ]: Interpolant automaton has 18 states [2018-06-22 10:50:44,167 INFO ]: Constructing interpolant automaton starting with 18 interpolants. [2018-06-22 10:50:44,168 INFO ]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2018-06-22 10:50:44,168 INFO ]: Start difference. First operand 109 states and 114 transitions. Second operand 18 states. [2018-06-22 10:50:44,596 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:44,596 INFO ]: Finished difference Result 129 states and 136 transitions. [2018-06-22 10:50:44,597 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 10:50:44,597 INFO ]: Start accepts. Automaton has 18 states. Word has length 97 [2018-06-22 10:50:44,598 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:44,600 INFO ]: With dead ends: 129 [2018-06-22 10:50:44,600 INFO ]: Without dead ends: 129 [2018-06-22 10:50:44,600 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2018-06-22 10:50:44,600 INFO ]: Start minimizeSevpa. Operand 129 states. [2018-06-22 10:50:44,612 INFO ]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-06-22 10:50:44,612 INFO ]: Start removeUnreachable. Operand 129 states. [2018-06-22 10:50:44,614 INFO ]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2018-06-22 10:50:44,615 INFO ]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 97 [2018-06-22 10:50:44,615 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:44,615 INFO ]: Abstraction has 129 states and 136 transitions. [2018-06-22 10:50:44,615 INFO ]: Interpolant automaton has 18 states. [2018-06-22 10:50:44,615 INFO ]: Start isEmpty. Operand 129 states and 136 transitions. [2018-06-22 10:50:44,617 INFO ]: Finished isEmpty. Found accepting run of length 98 [2018-06-22 10:50:44,617 INFO ]: Found error trace [2018-06-22 10:50:44,618 INFO ]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:44,618 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:44,618 INFO ]: Analyzing trace with hash -850901024, now seen corresponding path program 1 times [2018-06-22 10:50:44,618 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:44,618 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:44,619 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:44,619 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:44,619 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:44,641 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:44,914 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:50:44,914 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:44,914 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 10:50:44,920 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:45,030 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:45,047 INFO ]: Computing forward predicates... [2018-06-22 10:50:45,293 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:50:45,325 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:45,326 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 29 [2018-06-22 10:50:45,326 INFO ]: Interpolant automaton has 29 states [2018-06-22 10:50:45,326 INFO ]: Constructing interpolant automaton starting with 29 interpolants. [2018-06-22 10:50:45,327 INFO ]: CoverageRelationStatistics Valid=65, Invalid=747, Unknown=0, NotChecked=0, Total=812 [2018-06-22 10:50:45,327 INFO ]: Start difference. First operand 129 states and 136 transitions. Second operand 29 states. [2018-06-22 10:50:46,007 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:46,007 INFO ]: Finished difference Result 129 states and 135 transitions. [2018-06-22 10:50:46,008 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:50:46,008 INFO ]: Start accepts. Automaton has 29 states. Word has length 97 [2018-06-22 10:50:46,008 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:46,010 INFO ]: With dead ends: 129 [2018-06-22 10:50:46,010 INFO ]: Without dead ends: 121 [2018-06-22 10:50:46,011 INFO ]: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=913, Unknown=0, NotChecked=0, Total=992 [2018-06-22 10:50:46,011 INFO ]: Start minimizeSevpa. Operand 121 states. [2018-06-22 10:50:46,022 INFO ]: Finished minimizeSevpa. Reduced states from 121 to 117. [2018-06-22 10:50:46,023 INFO ]: Start removeUnreachable. Operand 117 states. [2018-06-22 10:50:46,024 INFO ]: Finished removeUnreachable. Reduced from 117 states to 117 states and 123 transitions. [2018-06-22 10:50:46,024 INFO ]: Start accepts. Automaton has 117 states and 123 transitions. Word has length 97 [2018-06-22 10:50:46,025 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:46,025 INFO ]: Abstraction has 117 states and 123 transitions. [2018-06-22 10:50:46,025 INFO ]: Interpolant automaton has 29 states. [2018-06-22 10:50:46,025 INFO ]: Start isEmpty. Operand 117 states and 123 transitions. [2018-06-22 10:50:46,028 INFO ]: Finished isEmpty. Found accepting run of length 102 [2018-06-22 10:50:46,028 INFO ]: Found error trace [2018-06-22 10:50:46,028 INFO ]: trace histogram [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, 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, 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 10:50:46,028 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:46,028 INFO ]: Analyzing trace with hash -1178667367, now seen corresponding path program 1 times [2018-06-22 10:50:46,029 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:46,029 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:46,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:46,029 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:46,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:46,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:46,574 INFO ]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:50:46,574 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:50:46,575 INFO ]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-06-22 10:50:46,575 INFO ]: Interpolant automaton has 24 states [2018-06-22 10:50:46,575 INFO ]: Constructing interpolant automaton starting with 24 interpolants. [2018-06-22 10:50:46,575 INFO ]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-06-22 10:50:46,575 INFO ]: Start difference. First operand 117 states and 123 transitions. Second operand 24 states. [2018-06-22 10:50:47,125 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:47,125 INFO ]: Finished difference Result 149 states and 158 transitions. [2018-06-22 10:50:47,126 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 10:50:47,126 INFO ]: Start accepts. Automaton has 24 states. Word has length 101 [2018-06-22 10:50:47,126 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:47,128 INFO ]: With dead ends: 149 [2018-06-22 10:50:47,128 INFO ]: Without dead ends: 149 [2018-06-22 10:50:47,128 INFO ]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=695, Unknown=0, NotChecked=0, Total=756 [2018-06-22 10:50:47,128 INFO ]: Start minimizeSevpa. Operand 149 states. [2018-06-22 10:50:47,142 INFO ]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-06-22 10:50:47,142 INFO ]: Start removeUnreachable. Operand 149 states. [2018-06-22 10:50:47,144 INFO ]: Finished removeUnreachable. Reduced from 149 states to 149 states and 158 transitions. [2018-06-22 10:50:47,144 INFO ]: Start accepts. Automaton has 149 states and 158 transitions. Word has length 101 [2018-06-22 10:50:47,144 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:47,144 INFO ]: Abstraction has 149 states and 158 transitions. [2018-06-22 10:50:47,145 INFO ]: Interpolant automaton has 24 states. [2018-06-22 10:50:47,145 INFO ]: Start isEmpty. Operand 149 states and 158 transitions. [2018-06-22 10:50:47,147 INFO ]: Finished isEmpty. Found accepting run of length 102 [2018-06-22 10:50:47,147 INFO ]: Found error trace [2018-06-22 10:50:47,147 INFO ]: trace histogram [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, 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, 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 10:50:47,147 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:47,147 INFO ]: Analyzing trace with hash -1010571908, now seen corresponding path program 1 times [2018-06-22 10:50:47,147 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:47,147 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:47,148 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:47,148 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:47,148 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:47,165 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:48,172 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:50:48,173 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:48,173 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 10:50:48,188 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:48,244 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:48,252 INFO ]: Computing forward predicates... [2018-06-22 10:50:48,628 INFO ]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 10:50:48,661 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:48,661 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 23] total 33 [2018-06-22 10:50:48,661 INFO ]: Interpolant automaton has 33 states [2018-06-22 10:50:48,661 INFO ]: Constructing interpolant automaton starting with 33 interpolants. [2018-06-22 10:50:48,662 INFO ]: CoverageRelationStatistics Valid=69, Invalid=987, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 10:50:48,662 INFO ]: Start difference. First operand 149 states and 158 transitions. Second operand 33 states. [2018-06-22 10:50:49,236 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:49,236 INFO ]: Finished difference Result 165 states and 174 transitions. [2018-06-22 10:50:49,236 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-06-22 10:50:49,236 INFO ]: Start accepts. Automaton has 33 states. Word has length 101 [2018-06-22 10:50:49,237 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:49,238 INFO ]: With dead ends: 165 [2018-06-22 10:50:49,238 INFO ]: Without dead ends: 157 [2018-06-22 10:50:49,239 INFO ]: 0 DeclaredPredicates, 131 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=109, Invalid=1613, Unknown=0, NotChecked=0, Total=1722 [2018-06-22 10:50:49,239 INFO ]: Start minimizeSevpa. Operand 157 states. [2018-06-22 10:50:49,257 INFO ]: Finished minimizeSevpa. Reduced states from 157 to 157. [2018-06-22 10:50:49,258 INFO ]: Start removeUnreachable. Operand 157 states. [2018-06-22 10:50:49,259 INFO ]: Finished removeUnreachable. Reduced from 157 states to 157 states and 166 transitions. [2018-06-22 10:50:49,259 INFO ]: Start accepts. Automaton has 157 states and 166 transitions. Word has length 101 [2018-06-22 10:50:49,259 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:49,260 INFO ]: Abstraction has 157 states and 166 transitions. [2018-06-22 10:50:49,260 INFO ]: Interpolant automaton has 33 states. [2018-06-22 10:50:49,260 INFO ]: Start isEmpty. Operand 157 states and 166 transitions. [2018-06-22 10:50:49,262 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:50:49,262 INFO ]: Found error trace [2018-06-22 10:50:49,262 INFO ]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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 10:50:49,262 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:49,262 INFO ]: Analyzing trace with hash -1783148664, now seen corresponding path program 1 times [2018-06-22 10:50:49,263 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:49,263 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:49,263 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:49,263 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:49,263 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:49,282 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:49,510 INFO ]: Checked inductivity of 33 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:50:49,510 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:49,510 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 10:50:49,515 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:49,615 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:49,632 INFO ]: Computing forward predicates... [2018-06-22 10:50:49,670 INFO ]: Checked inductivity of 33 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:50:49,690 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:49,690 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-06-22 10:50:49,693 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:50:49,693 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:50:49,693 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:50:49,693 INFO ]: Start difference. First operand 157 states and 166 transitions. Second operand 11 states. [2018-06-22 10:50:49,811 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:49,811 INFO ]: Finished difference Result 155 states and 162 transitions. [2018-06-22 10:50:49,812 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:50:49,812 INFO ]: Start accepts. Automaton has 11 states. Word has length 125 [2018-06-22 10:50:49,812 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:49,814 INFO ]: With dead ends: 155 [2018-06-22 10:50:49,814 INFO ]: Without dead ends: 155 [2018-06-22 10:50:49,814 INFO ]: 0 DeclaredPredicates, 139 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-06-22 10:50:49,814 INFO ]: Start minimizeSevpa. Operand 155 states. [2018-06-22 10:50:49,824 INFO ]: Finished minimizeSevpa. Reduced states from 155 to 155. [2018-06-22 10:50:49,824 INFO ]: Start removeUnreachable. Operand 155 states. [2018-06-22 10:50:49,826 INFO ]: Finished removeUnreachable. Reduced from 155 states to 155 states and 162 transitions. [2018-06-22 10:50:49,829 INFO ]: Start accepts. Automaton has 155 states and 162 transitions. Word has length 125 [2018-06-22 10:50:49,829 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:49,829 INFO ]: Abstraction has 155 states and 162 transitions. [2018-06-22 10:50:49,829 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:50:49,829 INFO ]: Start isEmpty. Operand 155 states and 162 transitions. [2018-06-22 10:50:49,831 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:50:49,831 INFO ]: Found error trace [2018-06-22 10:50:49,831 INFO ]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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 10:50:49,831 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:49,831 INFO ]: Analyzing trace with hash 1228317384, now seen corresponding path program 2 times [2018-06-22 10:50:49,831 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:49,832 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:49,832 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:49,832 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:49,832 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:49,862 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:50,275 INFO ]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-22 10:50:50,275 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:50,342 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 10:50:50,349 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:50:50,427 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:50:50,427 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:50,436 INFO ]: Computing forward predicates... [2018-06-22 10:50:50,573 INFO ]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-22 10:50:50,607 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:50,607 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2018-06-22 10:50:50,607 INFO ]: Interpolant automaton has 28 states [2018-06-22 10:50:50,607 INFO ]: Constructing interpolant automaton starting with 28 interpolants. [2018-06-22 10:50:50,608 INFO ]: CoverageRelationStatistics Valid=54, Invalid=702, Unknown=0, NotChecked=0, Total=756 [2018-06-22 10:50:50,608 INFO ]: Start difference. First operand 155 states and 162 transitions. Second operand 28 states. [2018-06-22 10:50:52,194 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:52,194 INFO ]: Finished difference Result 189 states and 198 transitions. [2018-06-22 10:50:52,194 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-06-22 10:50:52,194 INFO ]: Start accepts. Automaton has 28 states. Word has length 125 [2018-06-22 10:50:52,194 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:52,196 INFO ]: With dead ends: 189 [2018-06-22 10:50:52,196 INFO ]: Without dead ends: 189 [2018-06-22 10:50:52,196 INFO ]: 0 DeclaredPredicates, 158 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=982, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 10:50:52,196 INFO ]: Start minimizeSevpa. Operand 189 states. [2018-06-22 10:50:52,214 INFO ]: Finished minimizeSevpa. Reduced states from 189 to 167. [2018-06-22 10:50:52,214 INFO ]: Start removeUnreachable. Operand 167 states. [2018-06-22 10:50:52,216 INFO ]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2018-06-22 10:50:52,216 INFO ]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 125 [2018-06-22 10:50:52,216 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:52,216 INFO ]: Abstraction has 167 states and 175 transitions. [2018-06-22 10:50:52,217 INFO ]: Interpolant automaton has 28 states. [2018-06-22 10:50:52,217 INFO ]: Start isEmpty. Operand 167 states and 175 transitions. [2018-06-22 10:50:52,219 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:50:52,219 INFO ]: Found error trace [2018-06-22 10:50:52,219 INFO ]: trace histogram [3, 3, 3, 3, 3, 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, 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, 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 10:50:52,219 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:52,219 INFO ]: Analyzing trace with hash -1814240085, now seen corresponding path program 1 times [2018-06-22 10:50:52,219 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:52,219 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:52,220 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:52,220 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:50:52,220 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:52,237 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:52,715 INFO ]: Checked inductivity of 33 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-06-22 10:50:52,715 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:52,715 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 10:50:52,721 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:52,792 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:52,798 INFO ]: Computing forward predicates... [2018-06-22 10:50:53,300 INFO ]: Checked inductivity of 33 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-06-22 10:50:53,332 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:53,332 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 27] total 38 [2018-06-22 10:50:53,332 INFO ]: Interpolant automaton has 38 states [2018-06-22 10:50:53,333 INFO ]: Constructing interpolant automaton starting with 38 interpolants. [2018-06-22 10:50:53,333 INFO ]: CoverageRelationStatistics Valid=82, Invalid=1324, Unknown=0, NotChecked=0, Total=1406 [2018-06-22 10:50:53,333 INFO ]: Start difference. First operand 167 states and 175 transitions. Second operand 38 states. [2018-06-22 10:50:54,084 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:54,084 INFO ]: Finished difference Result 199 states and 208 transitions. [2018-06-22 10:50:54,084 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-22 10:50:54,084 INFO ]: Start accepts. Automaton has 38 states. Word has length 125 [2018-06-22 10:50:54,085 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:54,085 INFO ]: With dead ends: 199 [2018-06-22 10:50:54,085 INFO ]: Without dead ends: 191 [2018-06-22 10:50:54,086 INFO ]: 0 DeclaredPredicates, 162 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=2127, Unknown=0, NotChecked=0, Total=2256 [2018-06-22 10:50:54,086 INFO ]: Start minimizeSevpa. Operand 191 states. [2018-06-22 10:50:54,095 INFO ]: Finished minimizeSevpa. Reduced states from 191 to 183. [2018-06-22 10:50:54,095 INFO ]: Start removeUnreachable. Operand 183 states. [2018-06-22 10:50:54,097 INFO ]: Finished removeUnreachable. Reduced from 183 states to 183 states and 192 transitions. [2018-06-22 10:50:54,097 INFO ]: Start accepts. Automaton has 183 states and 192 transitions. Word has length 125 [2018-06-22 10:50:54,097 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:54,097 INFO ]: Abstraction has 183 states and 192 transitions. [2018-06-22 10:50:54,097 INFO ]: Interpolant automaton has 38 states. [2018-06-22 10:50:54,097 INFO ]: Start isEmpty. Operand 183 states and 192 transitions. [2018-06-22 10:50:54,099 INFO ]: Finished isEmpty. Found accepting run of length 130 [2018-06-22 10:50:54,099 INFO ]: Found error trace [2018-06-22 10:50:54,099 INFO ]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:54,099 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:54,099 INFO ]: Analyzing trace with hash 1854289956, now seen corresponding path program 2 times [2018-06-22 10:50:54,099 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:54,099 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:54,100 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:54,100 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:50:54,100 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:54,124 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:54,655 INFO ]: Checked inductivity of 42 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-22 10:50:54,655 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:54,655 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) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:50:54,660 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:50:54,741 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:50:54,741 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:54,773 INFO ]: Computing forward predicates... [2018-06-22 10:50:54,873 INFO ]: Checked inductivity of 42 backedges. 1 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-06-22 10:50:54,892 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:54,892 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 30 [2018-06-22 10:50:54,893 INFO ]: Interpolant automaton has 30 states [2018-06-22 10:50:54,893 INFO ]: Constructing interpolant automaton starting with 30 interpolants. [2018-06-22 10:50:54,893 INFO ]: CoverageRelationStatistics Valid=58, Invalid=812, Unknown=0, NotChecked=0, Total=870 [2018-06-22 10:50:54,893 INFO ]: Start difference. First operand 183 states and 192 transitions. Second operand 30 states. [2018-06-22 10:50:55,382 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:55,382 INFO ]: Finished difference Result 213 states and 222 transitions. [2018-06-22 10:50:55,402 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-06-22 10:50:55,402 INFO ]: Start accepts. Automaton has 30 states. Word has length 129 [2018-06-22 10:50:55,403 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:55,404 INFO ]: With dead ends: 213 [2018-06-22 10:50:55,404 INFO ]: Without dead ends: 205 [2018-06-22 10:50:55,405 INFO ]: 0 DeclaredPredicates, 164 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=1178, Unknown=0, NotChecked=0, Total=1260 [2018-06-22 10:50:55,405 INFO ]: Start minimizeSevpa. Operand 205 states. [2018-06-22 10:50:55,419 INFO ]: Finished minimizeSevpa. Reduced states from 205 to 197. [2018-06-22 10:50:55,419 INFO ]: Start removeUnreachable. Operand 197 states. [2018-06-22 10:50:55,421 INFO ]: Finished removeUnreachable. Reduced from 197 states to 197 states and 206 transitions. [2018-06-22 10:50:55,421 INFO ]: Start accepts. Automaton has 197 states and 206 transitions. Word has length 129 [2018-06-22 10:50:55,421 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:55,421 INFO ]: Abstraction has 197 states and 206 transitions. [2018-06-22 10:50:55,421 INFO ]: Interpolant automaton has 30 states. [2018-06-22 10:50:55,421 INFO ]: Start isEmpty. Operand 197 states and 206 transitions. [2018-06-22 10:50:55,423 INFO ]: Finished isEmpty. Found accepting run of length 150 [2018-06-22 10:50:55,423 INFO ]: Found error trace [2018-06-22 10:50:55,423 INFO ]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:55,423 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:55,423 INFO ]: Analyzing trace with hash -251733641, now seen corresponding path program 3 times [2018-06-22 10:50:55,423 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:55,423 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:55,424 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:55,424 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:50:55,424 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:55,446 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:55,867 INFO ]: Checked inductivity of 83 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-06-22 10:50:55,867 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:55,867 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 10:50:55,875 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 10:50:55,956 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 10:50:55,956 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:55,963 INFO ]: Computing forward predicates... [2018-06-22 10:50:56,064 INFO ]: Checked inductivity of 83 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-06-22 10:50:56,095 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:56,095 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 29 [2018-06-22 10:50:56,096 INFO ]: Interpolant automaton has 29 states [2018-06-22 10:50:56,096 INFO ]: Constructing interpolant automaton starting with 29 interpolants. [2018-06-22 10:50:56,096 INFO ]: CoverageRelationStatistics Valid=56, Invalid=756, Unknown=0, NotChecked=0, Total=812 [2018-06-22 10:50:56,096 INFO ]: Start difference. First operand 197 states and 206 transitions. Second operand 29 states. [2018-06-22 10:50:56,677 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:56,677 INFO ]: Finished difference Result 225 states and 233 transitions. [2018-06-22 10:50:56,677 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-06-22 10:50:56,677 INFO ]: Start accepts. Automaton has 29 states. Word has length 149 [2018-06-22 10:50:56,678 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:56,679 INFO ]: With dead ends: 225 [2018-06-22 10:50:56,679 INFO ]: Without dead ends: 214 [2018-06-22 10:50:56,680 INFO ]: 0 DeclaredPredicates, 193 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=1382, Unknown=0, NotChecked=0, Total=1482 [2018-06-22 10:50:56,680 INFO ]: Start minimizeSevpa. Operand 214 states. [2018-06-22 10:50:56,689 INFO ]: Finished minimizeSevpa. Reduced states from 214 to 142. [2018-06-22 10:50:56,689 INFO ]: Start removeUnreachable. Operand 142 states. [2018-06-22 10:50:56,690 INFO ]: Finished removeUnreachable. Reduced from 142 states to 142 states and 146 transitions. [2018-06-22 10:50:56,690 INFO ]: Start accepts. Automaton has 142 states and 146 transitions. Word has length 149 [2018-06-22 10:50:56,690 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:56,690 INFO ]: Abstraction has 142 states and 146 transitions. [2018-06-22 10:50:56,690 INFO ]: Interpolant automaton has 29 states. [2018-06-22 10:50:56,690 INFO ]: Start isEmpty. Operand 142 states and 146 transitions. [2018-06-22 10:50:56,691 INFO ]: Finished isEmpty. Found accepting run of length 154 [2018-06-22 10:50:56,691 INFO ]: Found error trace [2018-06-22 10:50:56,691 INFO ]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:56,691 INFO ]: === Iteration 12 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:56,691 INFO ]: Analyzing trace with hash -450997997, now seen corresponding path program 2 times [2018-06-22 10:50:56,691 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:56,691 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:56,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:56,692 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:50:56,692 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:56,712 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:57,232 INFO ]: Checked inductivity of 87 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-06-22 10:50:57,233 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:57,233 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 10:50:57,245 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 10:50:57,322 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 10:50:57,322 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:57,329 INFO ]: Computing forward predicates... [2018-06-22 10:50:57,437 INFO ]: Checked inductivity of 87 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-06-22 10:50:57,457 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:57,457 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 31 [2018-06-22 10:50:57,457 INFO ]: Interpolant automaton has 31 states [2018-06-22 10:50:57,457 INFO ]: Constructing interpolant automaton starting with 31 interpolants. [2018-06-22 10:50:57,458 INFO ]: CoverageRelationStatistics Valid=60, Invalid=870, Unknown=0, NotChecked=0, Total=930 [2018-06-22 10:50:57,458 INFO ]: Start difference. First operand 142 states and 146 transitions. Second operand 31 states. [2018-06-22 10:50:58,237 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:58,237 INFO ]: Finished difference Result 172 states and 176 transitions. [2018-06-22 10:50:58,237 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-06-22 10:50:58,237 INFO ]: Start accepts. Automaton has 31 states. Word has length 153 [2018-06-22 10:50:58,237 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:58,238 INFO ]: With dead ends: 172 [2018-06-22 10:50:58,238 INFO ]: Without dead ends: 164 [2018-06-22 10:50:58,238 INFO ]: 0 DeclaredPredicates, 194 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=1248, Unknown=0, NotChecked=0, Total=1332 [2018-06-22 10:50:58,239 INFO ]: Start minimizeSevpa. Operand 164 states. [2018-06-22 10:50:58,244 INFO ]: Finished minimizeSevpa. Reduced states from 164 to 132. [2018-06-22 10:50:58,244 INFO ]: Start removeUnreachable. Operand 132 states. [2018-06-22 10:50:58,245 INFO ]: Finished removeUnreachable. Reduced from 132 states to 132 states and 135 transitions. [2018-06-22 10:50:58,245 INFO ]: Start accepts. Automaton has 132 states and 135 transitions. Word has length 153 [2018-06-22 10:50:58,245 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:58,245 INFO ]: Abstraction has 132 states and 135 transitions. [2018-06-22 10:50:58,245 INFO ]: Interpolant automaton has 31 states. [2018-06-22 10:50:58,245 INFO ]: Start isEmpty. Operand 132 states and 135 transitions. [2018-06-22 10:50:58,246 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:50:58,246 INFO ]: Found error trace [2018-06-22 10:50:58,247 INFO ]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 10:50:58,247 INFO ]: === Iteration 13 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:58,247 INFO ]: Analyzing trace with hash 17875148, now seen corresponding path program 3 times [2018-06-22 10:50:58,247 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:58,247 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:58,248 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:58,248 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:50:58,248 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:58,267 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:58,900 INFO ]: Checked inductivity of 105 backedges. 3 proven. 49 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-06-22 10:50:58,901 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:50:58,901 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 10:50:58,907 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 10:50:59,053 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-06-22 10:50:59,053 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:50:59,069 INFO ]: Computing forward predicates... [2018-06-22 10:50:59,286 INFO ]: Checked inductivity of 105 backedges. 3 proven. 49 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2018-06-22 10:50:59,307 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:50:59,307 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 34 [2018-06-22 10:50:59,308 INFO ]: Interpolant automaton has 34 states [2018-06-22 10:50:59,308 INFO ]: Constructing interpolant automaton starting with 34 interpolants. [2018-06-22 10:50:59,308 INFO ]: CoverageRelationStatistics Valid=66, Invalid=1056, Unknown=0, NotChecked=0, Total=1122 [2018-06-22 10:50:59,308 INFO ]: Start difference. First operand 132 states and 135 transitions. Second operand 34 states. [2018-06-22 10:50:59,969 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:50:59,969 INFO ]: Finished difference Result 186 states and 190 transitions. [2018-06-22 10:50:59,969 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-06-22 10:50:59,969 INFO ]: Start accepts. Automaton has 34 states. Word has length 157 [2018-06-22 10:50:59,970 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:50:59,970 INFO ]: With dead ends: 186 [2018-06-22 10:50:59,970 INFO ]: Without dead ends: 142 [2018-06-22 10:50:59,971 INFO ]: 0 DeclaredPredicates, 206 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=116, Invalid=1864, Unknown=0, NotChecked=0, Total=1980 [2018-06-22 10:50:59,971 INFO ]: Start minimizeSevpa. Operand 142 states. [2018-06-22 10:50:59,975 INFO ]: Finished minimizeSevpa. Reduced states from 142 to 142. [2018-06-22 10:50:59,975 INFO ]: Start removeUnreachable. Operand 142 states. [2018-06-22 10:50:59,976 INFO ]: Finished removeUnreachable. Reduced from 142 states to 142 states and 145 transitions. [2018-06-22 10:50:59,977 INFO ]: Start accepts. Automaton has 142 states and 145 transitions. Word has length 157 [2018-06-22 10:50:59,977 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:50:59,977 INFO ]: Abstraction has 142 states and 145 transitions. [2018-06-22 10:50:59,977 INFO ]: Interpolant automaton has 34 states. [2018-06-22 10:50:59,977 INFO ]: Start isEmpty. Operand 142 states and 145 transitions. [2018-06-22 10:50:59,978 INFO ]: Finished isEmpty. Found accepting run of length 182 [2018-06-22 10:50:59,978 INFO ]: Found error trace [2018-06-22 10:50:59,978 INFO ]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1] [2018-06-22 10:50:59,978 INFO ]: === Iteration 14 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:50:59,978 INFO ]: Analyzing trace with hash 1050927995, now seen corresponding path program 3 times [2018-06-22 10:50:59,978 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:50:59,978 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:50:59,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:50:59,979 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 10:50:59,979 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:51:00,002 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:51:00,951 INFO ]: Checked inductivity of 169 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-06-22 10:51:00,951 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:51:00,997 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 10:51:01,003 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 10:51:01,109 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-06-22 10:51:01,109 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:51:01,117 INFO ]: Computing forward predicates... [2018-06-22 10:51:01,230 INFO ]: Checked inductivity of 169 backedges. 3 proven. 75 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-06-22 10:51:01,251 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:51:01,251 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 35 [2018-06-22 10:51:01,252 INFO ]: Interpolant automaton has 35 states [2018-06-22 10:51:01,252 INFO ]: Constructing interpolant automaton starting with 35 interpolants. [2018-06-22 10:51:01,252 INFO ]: CoverageRelationStatistics Valid=68, Invalid=1122, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 10:51:01,252 INFO ]: Start difference. First operand 142 states and 145 transitions. Second operand 35 states. [2018-06-22 10:51:01,914 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:51:01,914 INFO ]: Finished difference Result 136 states and 139 transitions. [2018-06-22 10:51:01,915 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-06-22 10:51:01,915 INFO ]: Start accepts. Automaton has 35 states. Word has length 181 [2018-06-22 10:51:01,915 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:51:01,915 INFO ]: With dead ends: 136 [2018-06-22 10:51:01,915 INFO ]: Without dead ends: 0 [2018-06-22 10:51:01,915 INFO ]: 0 DeclaredPredicates, 236 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=118, Invalid=1952, Unknown=0, NotChecked=0, Total=2070 [2018-06-22 10:51:01,916 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:51:01,916 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:51:01,916 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:51:01,916 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:51:01,916 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 181 [2018-06-22 10:51:01,916 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:51:01,916 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:51:01,916 INFO ]: Interpolant automaton has 35 states. [2018-06-22 10:51:01,916 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:51:01,916 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:51:02,035 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:51:02 BoogieIcfgContainer [2018-06-22 10:51:02,035 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:51:02,036 INFO ]: Toolchain (without parser) took 21897.97 ms. Allocated memory was 306.7 MB in the beginning and 709.9 MB in the end (delta: 403.2 MB). Free memory was 252.1 MB in the beginning and 682.5 MB in the end (delta: -430.5 MB). Peak memory consumption was 159.7 MB. Max. memory is 3.6 GB. [2018-06-22 10:51:02,037 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:51:02,038 INFO ]: ChcToBoogie took 86.64 ms. Allocated memory is still 306.7 MB. Free memory was 252.1 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:51:02,038 INFO ]: Boogie Preprocessor took 50.70 ms. Allocated memory is still 306.7 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:51:02,038 INFO ]: RCFGBuilder took 475.45 ms. Allocated memory is still 306.7 MB. Free memory was 248.0 MB in the beginning and 228.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:51:02,038 INFO ]: TraceAbstraction took 21271.08 ms. Allocated memory was 306.7 MB in the beginning and 709.9 MB in the end (delta: 403.2 MB). Free memory was 228.0 MB in the beginning and 682.5 MB in the end (delta: -454.5 MB). Peak memory consumption was 135.6 MB. Max. memory is 3.6 GB. [2018-06-22 10:51:02,041 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 306.7 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 86.64 ms. Allocated memory is still 306.7 MB. Free memory was 252.1 MB in the beginning and 250.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 50.70 ms. Allocated memory is still 306.7 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 475.45 ms. Allocated memory is still 306.7 MB. Free memory was 248.0 MB in the beginning and 228.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 21271.08 ms. Allocated memory was 306.7 MB in the beginning and 709.9 MB in the end (delta: 403.2 MB). Free memory was 228.0 MB in the beginning and 682.5 MB in the end (delta: -454.5 MB). Peak memory consumption was 135.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 107 locations, 1 error locations. SAFE Result, 21.2s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 9.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1351 SDtfs, 90 SDslu, 31103 SDs, 0 SdLazy, 7456 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1787 GetRequests, 1364 SyntacticMatches, 0 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=10, 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: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 146 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 3028 NumberOfCodeBlocks, 3028 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 3004 ConstructedInterpolants, 0 QuantifiedInterpolants, 816256 SizeOfPredicates, 59 NumberOfNonLiveVariables, 7011 ConjunctsInSsa, 527 ConjunctsInUnsatCore, 24 InterpolantComputations, 4 PerfectInterpolantSequences, 710/1212 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/19.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-51-02-054.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/19.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-51-02-054.csv Received shutdown request...