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/25.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:52:18,570 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:52:18,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:52:18,587 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:52:18,588 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:52:18,589 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:52:18,590 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:52:18,594 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:52:18,597 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:52:18,597 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:52:18,598 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:52:18,598 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:52:18,599 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:52:18,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:52:18,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:52:18,604 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:52:18,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:52:18,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:52:18,618 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:52:18,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:52:18,620 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:52:18,622 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:52:18,622 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:52:18,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:52:18,623 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:52:18,624 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:52:18,625 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:52:18,626 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:52:18,627 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:52:18,627 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:52:18,627 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:52:18,628 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:52:18,628 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:52:18,629 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:52:18,630 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:52:18,636 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 10:52:18,659 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:52:18,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:52:18,659 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:52:18,660 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:52:18,660 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:52:18,661 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:52:18,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:52:18,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:52:18,661 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:52:18,661 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:52:18,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:52:18,662 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:52:18,662 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:52:18,662 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:52:18,662 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:52:18,663 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:52:18,663 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:52:18,663 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:52:18,663 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:52:18,664 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:52:18,665 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:52:18,715 INFO ]: Repository-Root is: /tmp [2018-06-22 10:52:18,731 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:52:18,735 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:52:18,737 INFO ]: Initializing SmtParser... [2018-06-22 10:52:18,737 INFO ]: SmtParser initialized [2018-06-22 10:52:18,738 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/25.c.smt2 [2018-06-22 10:52:18,740 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 10:52:18,836 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/25.c.smt2 unknown [2018-06-22 10:52:19,315 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/25.c.smt2 [2018-06-22 10:52:19,319 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:52:19,325 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:52:19,325 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:52:19,325 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:52:19,325 INFO ]: ChcToBoogie initialized [2018-06-22 10:52:19,328 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,428 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19 Unit [2018-06-22 10:52:19,428 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:52:19,429 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:52:19,429 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:52:19,429 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:52:19,458 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,458 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,470 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,470 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,483 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,485 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,494 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (1/1) ... [2018-06-22 10:52:19,498 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:52:19,499 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:52:19,499 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:52:19,499 INFO ]: RCFGBuilder initialized [2018-06-22 10:52:19,500 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (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 10:52:19,523 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:52:19,523 INFO ]: Found specification of procedure False [2018-06-22 10:52:19,523 INFO ]: Found implementation of procedure False [2018-06-22 10:52:19,523 INFO ]: Specification and implementation of procedure h37 given in one single declaration [2018-06-22 10:52:19,523 INFO ]: Found specification of procedure h37 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h37 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h36 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h36 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h36 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h14 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h14 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h13 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h13 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h13 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h12 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h12 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h12 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h8 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h8 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h7 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h7 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h6 [2018-06-22 10:52:19,524 INFO ]: Found implementation of procedure h6 [2018-06-22 10:52:19,524 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:52:19,524 INFO ]: Found specification of procedure h5 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h5 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h33 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h33 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h33 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h32 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h32 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h32 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h31 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h31 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h31 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h25 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h25 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h25 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h24 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h24 [2018-06-22 10:52:19,525 INFO ]: Found implementation of procedure h24 [2018-06-22 10:52:19,525 INFO ]: Specification and implementation of procedure h23 given in one single declaration [2018-06-22 10:52:19,525 INFO ]: Found specification of procedure h23 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h23 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h19 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h19 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h18 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h18 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h17 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h17 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h16 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h16 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h16 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h29 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h29 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h29 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h30 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h30 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h30 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h21 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h21 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h21 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h22 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h22 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h22 [2018-06-22 10:52:19,526 INFO ]: Specification and implementation of procedure h20 given in one single declaration [2018-06-22 10:52:19,526 INFO ]: Found specification of procedure h20 [2018-06-22 10:52:19,526 INFO ]: Found implementation of procedure h20 [2018-06-22 10:52:19,527 INFO ]: Specification and implementation of procedure h28 given in one single declaration [2018-06-22 10:52:19,527 INFO ]: Found specification of procedure h28 [2018-06-22 10:52:19,527 INFO ]: Found implementation of procedure h28 [2018-06-22 10:52:19,527 INFO ]: Specification and implementation of procedure h27 given in one single declaration [2018-06-22 10:52:19,527 INFO ]: Found specification of procedure h27 [2018-06-22 10:52:19,527 INFO ]: Found implementation of procedure h27 [2018-06-22 10:52:19,527 INFO ]: Specification and implementation of procedure h26 given in one single declaration [2018-06-22 10:52:19,527 INFO ]: Found specification of procedure h26 [2018-06-22 10:52:19,527 INFO ]: Found implementation of procedure h26 [2018-06-22 10:52:19,527 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:52:19,527 INFO ]: Found specification of procedure h15 [2018-06-22 10:52:19,527 INFO ]: Found implementation of procedure h15 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:52:19,532 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:52:19,532 INFO ]: Found specification of procedure h10 [2018-06-22 10:52:19,532 INFO ]: Found implementation of procedure h10 [2018-06-22 10:52:19,532 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:52:19,532 INFO ]: Found specification of procedure h9 [2018-06-22 10:52:19,532 INFO ]: Found implementation of procedure h9 [2018-06-22 10:52:19,532 INFO ]: Specification and implementation of procedure h11 given in one single declaration [2018-06-22 10:52:19,535 INFO ]: Found specification of procedure h11 [2018-06-22 10:52:19,535 INFO ]: Found implementation of procedure h11 [2018-06-22 10:52:19,535 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:52:19,535 INFO ]: Found specification of procedure h4 [2018-06-22 10:52:19,535 INFO ]: Found implementation of procedure h4 [2018-06-22 10:52:19,535 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:52:19,535 INFO ]: Found specification of procedure h3 [2018-06-22 10:52:19,535 INFO ]: Found implementation of procedure h3 [2018-06-22 10:52:19,535 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:52:19,535 INFO ]: Found specification of procedure h2 [2018-06-22 10:52:19,535 INFO ]: Found implementation of procedure h2 [2018-06-22 10:52:19,535 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:52:19,536 INFO ]: Found specification of procedure h1 [2018-06-22 10:52:19,536 INFO ]: Found implementation of procedure h1 [2018-06-22 10:52:19,536 INFO ]: Specification and implementation of procedure h35 given in one single declaration [2018-06-22 10:52:19,536 INFO ]: Found specification of procedure h35 [2018-06-22 10:52:19,536 INFO ]: Found implementation of procedure h35 [2018-06-22 10:52:19,536 INFO ]: Specification and implementation of procedure h34 given in one single declaration [2018-06-22 10:52:19,536 INFO ]: Found specification of procedure h34 [2018-06-22 10:52:19,536 INFO ]: Found implementation of procedure h34 [2018-06-22 10:52:19,536 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:52:19,536 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:52:19,536 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:52:20,546 INFO ]: Using library mode [2018-06-22 10:52:20,546 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:52:20 BoogieIcfgContainer [2018-06-22 10:52:20,546 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:52:20,548 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:52:20,548 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:52:20,551 INFO ]: TraceAbstraction initialized [2018-06-22 10:52:20,551 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:52:19" (1/3) ... [2018-06-22 10:52:20,552 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a13bb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:52:20, skipping insertion in model container [2018-06-22 10:52:20,552 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:19" (2/3) ... [2018-06-22 10:52:20,552 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a13bb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:52:20, skipping insertion in model container [2018-06-22 10:52:20,552 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:52:20" (3/3) ... [2018-06-22 10:52:20,554 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:52:20,563 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:52:20,572 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:52:20,614 INFO ]: Using default assertion order modulation [2018-06-22 10:52:20,615 INFO ]: Interprodecural is true [2018-06-22 10:52:20,615 INFO ]: Hoare is false [2018-06-22 10:52:20,615 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:52:20,615 INFO ]: Backedges is TWOTRACK [2018-06-22 10:52:20,615 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:52:20,615 INFO ]: Difference is false [2018-06-22 10:52:20,615 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:52:20,615 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:52:20,645 INFO ]: Start isEmpty. Operand 163 states. [2018-06-22 10:52:20,665 INFO ]: Finished isEmpty. Found accepting run of length 58 [2018-06-22 10:52:20,665 INFO ]: Found error trace [2018-06-22 10:52:20,666 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] [2018-06-22 10:52:20,666 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:20,669 INFO ]: Analyzing trace with hash -86285494, now seen corresponding path program 1 times [2018-06-22 10:52:20,671 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:20,671 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:20,702 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:20,703 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:20,703 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:20,815 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:21,783 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:52:21,785 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:21,785 INFO ]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-06-22 10:52:21,787 INFO ]: Interpolant automaton has 14 states [2018-06-22 10:52:21,802 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-22 10:52:21,803 INFO ]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:52:21,807 INFO ]: Start difference. First operand 163 states. Second operand 14 states. [2018-06-22 10:52:22,324 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:22,324 INFO ]: Finished difference Result 177 states and 191 transitions. [2018-06-22 10:52:22,325 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-06-22 10:52:22,326 INFO ]: Start accepts. Automaton has 14 states. Word has length 57 [2018-06-22 10:52:22,326 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:22,339 INFO ]: With dead ends: 177 [2018-06-22 10:52:22,339 INFO ]: Without dead ends: 169 [2018-06-22 10:52:22,340 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-06-22 10:52:22,355 INFO ]: Start minimizeSevpa. Operand 169 states. [2018-06-22 10:52:22,396 INFO ]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-06-22 10:52:22,398 INFO ]: Start removeUnreachable. Operand 169 states. [2018-06-22 10:52:22,401 INFO ]: Finished removeUnreachable. Reduced from 169 states to 169 states and 183 transitions. [2018-06-22 10:52:22,402 INFO ]: Start accepts. Automaton has 169 states and 183 transitions. Word has length 57 [2018-06-22 10:52:22,403 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:22,403 INFO ]: Abstraction has 169 states and 183 transitions. [2018-06-22 10:52:22,403 INFO ]: Interpolant automaton has 14 states. [2018-06-22 10:52:22,403 INFO ]: Start isEmpty. Operand 169 states and 183 transitions. [2018-06-22 10:52:22,409 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:52:22,409 INFO ]: Found error trace [2018-06-22 10:52:22,410 INFO ]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 10:52:22,410 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:22,410 INFO ]: Analyzing trace with hash 544657833, now seen corresponding path program 1 times [2018-06-22 10:52:22,410 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:22,410 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:22,411 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:22,411 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:22,411 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:22,494 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:22,991 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:22,991 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:22,991 INFO ]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-06-22 10:52:22,993 INFO ]: Interpolant automaton has 20 states [2018-06-22 10:52:22,994 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 10:52:22,994 INFO ]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:22,994 INFO ]: Start difference. First operand 169 states and 183 transitions. Second operand 20 states. [2018-06-22 10:52:23,841 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:23,842 INFO ]: Finished difference Result 247 states and 289 transitions. [2018-06-22 10:52:23,843 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:52:23,843 INFO ]: Start accepts. Automaton has 20 states. Word has length 125 [2018-06-22 10:52:23,844 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:23,848 INFO ]: With dead ends: 247 [2018-06-22 10:52:23,848 INFO ]: Without dead ends: 247 [2018-06-22 10:52:23,849 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:23,850 INFO ]: Start minimizeSevpa. Operand 247 states. [2018-06-22 10:52:23,875 INFO ]: Finished minimizeSevpa. Reduced states from 247 to 245. [2018-06-22 10:52:23,875 INFO ]: Start removeUnreachable. Operand 245 states. [2018-06-22 10:52:23,879 INFO ]: Finished removeUnreachable. Reduced from 245 states to 245 states and 286 transitions. [2018-06-22 10:52:23,879 INFO ]: Start accepts. Automaton has 245 states and 286 transitions. Word has length 125 [2018-06-22 10:52:23,880 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:23,880 INFO ]: Abstraction has 245 states and 286 transitions. [2018-06-22 10:52:23,880 INFO ]: Interpolant automaton has 20 states. [2018-06-22 10:52:23,880 INFO ]: Start isEmpty. Operand 245 states and 286 transitions. [2018-06-22 10:52:23,884 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:52:23,884 INFO ]: Found error trace [2018-06-22 10:52:23,884 INFO ]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 10:52:23,885 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:23,885 INFO ]: Analyzing trace with hash 94047134, now seen corresponding path program 1 times [2018-06-22 10:52:23,885 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:23,885 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:23,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:23,886 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:23,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:23,936 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:24,465 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:24,465 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:24,465 INFO ]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-06-22 10:52:24,465 INFO ]: Interpolant automaton has 20 states [2018-06-22 10:52:24,465 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 10:52:24,466 INFO ]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:24,466 INFO ]: Start difference. First operand 245 states and 286 transitions. Second operand 20 states. [2018-06-22 10:52:25,002 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:25,002 INFO ]: Finished difference Result 347 states and 430 transitions. [2018-06-22 10:52:25,005 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:52:25,005 INFO ]: Start accepts. Automaton has 20 states. Word has length 125 [2018-06-22 10:52:25,006 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:25,013 INFO ]: With dead ends: 347 [2018-06-22 10:52:25,013 INFO ]: Without dead ends: 338 [2018-06-22 10:52:25,014 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:25,014 INFO ]: Start minimizeSevpa. Operand 338 states. [2018-06-22 10:52:25,052 INFO ]: Finished minimizeSevpa. Reduced states from 338 to 320. [2018-06-22 10:52:25,052 INFO ]: Start removeUnreachable. Operand 320 states. [2018-06-22 10:52:25,056 INFO ]: Finished removeUnreachable. Reduced from 320 states to 320 states and 393 transitions. [2018-06-22 10:52:25,056 INFO ]: Start accepts. Automaton has 320 states and 393 transitions. Word has length 125 [2018-06-22 10:52:25,057 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:25,057 INFO ]: Abstraction has 320 states and 393 transitions. [2018-06-22 10:52:25,057 INFO ]: Interpolant automaton has 20 states. [2018-06-22 10:52:25,057 INFO ]: Start isEmpty. Operand 320 states and 393 transitions. [2018-06-22 10:52:25,061 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:52:25,061 INFO ]: Found error trace [2018-06-22 10:52:25,061 INFO ]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 10:52:25,061 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:25,062 INFO ]: Analyzing trace with hash 1460672993, now seen corresponding path program 1 times [2018-06-22 10:52:25,062 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:25,062 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:25,062 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:25,062 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:25,062 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:25,087 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:25,373 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:25,374 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:25,374 INFO ]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-06-22 10:52:25,374 INFO ]: Interpolant automaton has 20 states [2018-06-22 10:52:25,374 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 10:52:25,375 INFO ]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:25,375 INFO ]: Start difference. First operand 320 states and 393 transitions. Second operand 20 states. [2018-06-22 10:52:26,161 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:26,161 INFO ]: Finished difference Result 452 states and 529 transitions. [2018-06-22 10:52:26,161 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:52:26,161 INFO ]: Start accepts. Automaton has 20 states. Word has length 125 [2018-06-22 10:52:26,162 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:26,167 INFO ]: With dead ends: 452 [2018-06-22 10:52:26,167 INFO ]: Without dead ends: 444 [2018-06-22 10:52:26,167 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:26,167 INFO ]: Start minimizeSevpa. Operand 444 states. [2018-06-22 10:52:26,198 INFO ]: Finished minimizeSevpa. Reduced states from 444 to 402. [2018-06-22 10:52:26,198 INFO ]: Start removeUnreachable. Operand 402 states. [2018-06-22 10:52:26,202 INFO ]: Finished removeUnreachable. Reduced from 402 states to 402 states and 474 transitions. [2018-06-22 10:52:26,202 INFO ]: Start accepts. Automaton has 402 states and 474 transitions. Word has length 125 [2018-06-22 10:52:26,202 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:26,202 INFO ]: Abstraction has 402 states and 474 transitions. [2018-06-22 10:52:26,202 INFO ]: Interpolant automaton has 20 states. [2018-06-22 10:52:26,202 INFO ]: Start isEmpty. Operand 402 states and 474 transitions. [2018-06-22 10:52:26,207 INFO ]: Finished isEmpty. Found accepting run of length 126 [2018-06-22 10:52:26,207 INFO ]: Found error trace [2018-06-22 10:52:26,207 INFO ]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 10:52:26,207 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:26,207 INFO ]: Analyzing trace with hash -821968026, now seen corresponding path program 1 times [2018-06-22 10:52:26,207 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:26,207 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:26,208 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:26,208 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:26,208 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:26,231 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:27,232 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:27,233 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:27,233 INFO ]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-06-22 10:52:27,233 INFO ]: Interpolant automaton has 20 states [2018-06-22 10:52:27,233 INFO ]: Constructing interpolant automaton starting with 20 interpolants. [2018-06-22 10:52:27,233 INFO ]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:27,234 INFO ]: Start difference. First operand 402 states and 474 transitions. Second operand 20 states. [2018-06-22 10:52:27,973 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:27,973 INFO ]: Finished difference Result 522 states and 612 transitions. [2018-06-22 10:52:27,975 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-06-22 10:52:27,975 INFO ]: Start accepts. Automaton has 20 states. Word has length 125 [2018-06-22 10:52:27,975 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:27,979 INFO ]: With dead ends: 522 [2018-06-22 10:52:27,979 INFO ]: Without dead ends: 514 [2018-06-22 10:52:27,979 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2018-06-22 10:52:27,979 INFO ]: Start minimizeSevpa. Operand 514 states. [2018-06-22 10:52:28,005 INFO ]: Finished minimizeSevpa. Reduced states from 514 to 504. [2018-06-22 10:52:28,006 INFO ]: Start removeUnreachable. Operand 504 states. [2018-06-22 10:52:28,009 INFO ]: Finished removeUnreachable. Reduced from 504 states to 504 states and 581 transitions. [2018-06-22 10:52:28,009 INFO ]: Start accepts. Automaton has 504 states and 581 transitions. Word has length 125 [2018-06-22 10:52:28,010 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:28,010 INFO ]: Abstraction has 504 states and 581 transitions. [2018-06-22 10:52:28,010 INFO ]: Interpolant automaton has 20 states. [2018-06-22 10:52:28,010 INFO ]: Start isEmpty. Operand 504 states and 581 transitions. [2018-06-22 10:52:28,014 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:28,014 INFO ]: Found error trace [2018-06-22 10:52:28,014 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:28,014 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:28,014 INFO ]: Analyzing trace with hash 382038010, now seen corresponding path program 1 times [2018-06-22 10:52:28,014 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:28,014 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:28,015 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:28,015 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:28,015 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:28,042 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:28,370 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:28,370 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:28,370 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:28,370 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:28,370 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:28,370 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:28,371 INFO ]: Start difference. First operand 504 states and 581 transitions. Second operand 11 states. [2018-06-22 10:52:28,625 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:28,625 INFO ]: Finished difference Result 585 states and 678 transitions. [2018-06-22 10:52:28,625 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:28,625 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:28,626 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:28,629 INFO ]: With dead ends: 585 [2018-06-22 10:52:28,629 INFO ]: Without dead ends: 553 [2018-06-22 10:52:28,629 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:28,630 INFO ]: Start minimizeSevpa. Operand 553 states. [2018-06-22 10:52:28,653 INFO ]: Finished minimizeSevpa. Reduced states from 553 to 543. [2018-06-22 10:52:28,653 INFO ]: Start removeUnreachable. Operand 543 states. [2018-06-22 10:52:28,657 INFO ]: Finished removeUnreachable. Reduced from 543 states to 543 states and 635 transitions. [2018-06-22 10:52:28,657 INFO ]: Start accepts. Automaton has 543 states and 635 transitions. Word has length 157 [2018-06-22 10:52:28,658 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:28,658 INFO ]: Abstraction has 543 states and 635 transitions. [2018-06-22 10:52:28,658 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:28,658 INFO ]: Start isEmpty. Operand 543 states and 635 transitions. [2018-06-22 10:52:28,661 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:28,661 INFO ]: Found error trace [2018-06-22 10:52:28,661 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:28,661 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:28,662 INFO ]: Analyzing trace with hash -431271265, now seen corresponding path program 1 times [2018-06-22 10:52:28,662 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:28,662 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:28,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:28,662 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:28,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:28,683 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:28,901 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:28,901 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:28,901 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:28,901 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:28,901 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:28,901 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:28,902 INFO ]: Start difference. First operand 543 states and 635 transitions. Second operand 11 states. [2018-06-22 10:52:29,515 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:29,515 INFO ]: Finished difference Result 607 states and 698 transitions. [2018-06-22 10:52:29,515 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:29,515 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:29,515 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:29,518 INFO ]: With dead ends: 607 [2018-06-22 10:52:29,518 INFO ]: Without dead ends: 575 [2018-06-22 10:52:29,519 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:29,519 INFO ]: Start minimizeSevpa. Operand 575 states. [2018-06-22 10:52:29,542 INFO ]: Finished minimizeSevpa. Reduced states from 575 to 555. [2018-06-22 10:52:29,542 INFO ]: Start removeUnreachable. Operand 555 states. [2018-06-22 10:52:29,545 INFO ]: Finished removeUnreachable. Reduced from 555 states to 555 states and 645 transitions. [2018-06-22 10:52:29,545 INFO ]: Start accepts. Automaton has 555 states and 645 transitions. Word has length 157 [2018-06-22 10:52:29,545 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:29,545 INFO ]: Abstraction has 555 states and 645 transitions. [2018-06-22 10:52:29,545 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:29,546 INFO ]: Start isEmpty. Operand 555 states and 645 transitions. [2018-06-22 10:52:29,549 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:29,549 INFO ]: Found error trace [2018-06-22 10:52:29,549 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:29,549 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:29,549 INFO ]: Analyzing trace with hash 1457565756, now seen corresponding path program 1 times [2018-06-22 10:52:29,549 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:29,549 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:29,550 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:29,550 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:29,550 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:29,568 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:29,697 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:29,697 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:29,697 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:29,698 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:29,698 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:29,698 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:29,698 INFO ]: Start difference. First operand 555 states and 645 transitions. Second operand 11 states. [2018-06-22 10:52:30,451 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:30,451 INFO ]: Finished difference Result 656 states and 760 transitions. [2018-06-22 10:52:30,451 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:30,451 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:30,451 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:30,454 INFO ]: With dead ends: 656 [2018-06-22 10:52:30,454 INFO ]: Without dead ends: 610 [2018-06-22 10:52:30,454 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:30,455 INFO ]: Start minimizeSevpa. Operand 610 states. [2018-06-22 10:52:30,479 INFO ]: Finished minimizeSevpa. Reduced states from 610 to 572. [2018-06-22 10:52:30,479 INFO ]: Start removeUnreachable. Operand 572 states. [2018-06-22 10:52:30,483 INFO ]: Finished removeUnreachable. Reduced from 572 states to 572 states and 657 transitions. [2018-06-22 10:52:30,483 INFO ]: Start accepts. Automaton has 572 states and 657 transitions. Word has length 157 [2018-06-22 10:52:30,483 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:30,483 INFO ]: Abstraction has 572 states and 657 transitions. [2018-06-22 10:52:30,483 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:30,483 INFO ]: Start isEmpty. Operand 572 states and 657 transitions. [2018-06-22 10:52:30,486 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:30,486 INFO ]: Found error trace [2018-06-22 10:52:30,486 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:30,487 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:30,487 INFO ]: Analyzing trace with hash 1510385169, now seen corresponding path program 1 times [2018-06-22 10:52:30,487 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:30,487 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:30,487 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:30,487 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:30,487 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:30,507 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:31,029 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:31,029 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:31,029 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:31,030 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:31,030 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:31,030 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:31,030 INFO ]: Start difference. First operand 572 states and 657 transitions. Second operand 11 states. [2018-06-22 10:52:31,480 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:31,480 INFO ]: Finished difference Result 634 states and 724 transitions. [2018-06-22 10:52:31,481 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:31,481 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:31,481 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:31,485 INFO ]: With dead ends: 634 [2018-06-22 10:52:31,485 INFO ]: Without dead ends: 594 [2018-06-22 10:52:31,485 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:31,485 INFO ]: Start minimizeSevpa. Operand 594 states. [2018-06-22 10:52:31,506 INFO ]: Finished minimizeSevpa. Reduced states from 594 to 584. [2018-06-22 10:52:31,506 INFO ]: Start removeUnreachable. Operand 584 states. [2018-06-22 10:52:31,508 INFO ]: Finished removeUnreachable. Reduced from 584 states to 584 states and 673 transitions. [2018-06-22 10:52:31,508 INFO ]: Start accepts. Automaton has 584 states and 673 transitions. Word has length 157 [2018-06-22 10:52:31,509 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:31,509 INFO ]: Abstraction has 584 states and 673 transitions. [2018-06-22 10:52:31,509 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:31,509 INFO ]: Start isEmpty. Operand 584 states and 673 transitions. [2018-06-22 10:52:31,512 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:31,512 INFO ]: Found error trace [2018-06-22 10:52:31,512 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:31,513 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:31,514 INFO ]: Analyzing trace with hash -744247969, now seen corresponding path program 1 times [2018-06-22 10:52:31,514 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:31,514 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:31,514 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:31,514 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:31,514 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:31,534 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:31,719 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:31,719 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:31,719 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:31,720 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:31,720 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:31,720 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:31,720 INFO ]: Start difference. First operand 584 states and 673 transitions. Second operand 11 states. [2018-06-22 10:52:31,830 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:31,830 INFO ]: Finished difference Result 644 states and 732 transitions. [2018-06-22 10:52:31,830 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:31,830 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:31,830 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:31,835 INFO ]: With dead ends: 644 [2018-06-22 10:52:31,835 INFO ]: Without dead ends: 593 [2018-06-22 10:52:31,835 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:31,835 INFO ]: Start minimizeSevpa. Operand 593 states. [2018-06-22 10:52:31,859 INFO ]: Finished minimizeSevpa. Reduced states from 593 to 581. [2018-06-22 10:52:31,859 INFO ]: Start removeUnreachable. Operand 581 states. [2018-06-22 10:52:31,862 INFO ]: Finished removeUnreachable. Reduced from 581 states to 581 states and 661 transitions. [2018-06-22 10:52:31,862 INFO ]: Start accepts. Automaton has 581 states and 661 transitions. Word has length 157 [2018-06-22 10:52:31,862 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:31,862 INFO ]: Abstraction has 581 states and 661 transitions. [2018-06-22 10:52:31,862 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:31,862 INFO ]: Start isEmpty. Operand 581 states and 661 transitions. [2018-06-22 10:52:31,866 INFO ]: Finished isEmpty. Found accepting run of length 158 [2018-06-22 10:52:31,866 INFO ]: Found error trace [2018-06-22 10:52:31,866 INFO ]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:31,866 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:31,866 INFO ]: Analyzing trace with hash -895745106, now seen corresponding path program 1 times [2018-06-22 10:52:31,866 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:31,866 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:31,867 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:31,868 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:31,868 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:31,887 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:32,385 INFO ]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-06-22 10:52:32,385 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:32,386 INFO ]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-06-22 10:52:32,386 INFO ]: Interpolant automaton has 11 states [2018-06-22 10:52:32,386 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 10:52:32,386 INFO ]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:32,386 INFO ]: Start difference. First operand 581 states and 661 transitions. Second operand 11 states. [2018-06-22 10:52:32,509 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:32,509 INFO ]: Finished difference Result 533 states and 614 transitions. [2018-06-22 10:52:32,510 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-06-22 10:52:32,510 INFO ]: Start accepts. Automaton has 11 states. Word has length 157 [2018-06-22 10:52:32,510 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:32,510 INFO ]: With dead ends: 533 [2018-06-22 10:52:32,510 INFO ]: Without dead ends: 0 [2018-06-22 10:52:32,510 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:52:32,510 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:52:32,510 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:52:32,510 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:52:32,510 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:52:32,511 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2018-06-22 10:52:32,511 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:32,511 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:52:32,511 INFO ]: Interpolant automaton has 11 states. [2018-06-22 10:52:32,511 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:52:32,511 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:52:32,515 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:52:32 BoogieIcfgContainer [2018-06-22 10:52:32,515 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:52:32,516 INFO ]: Toolchain (without parser) took 13196.31 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 240.6 MB in the beginning and 329.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 86.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:32,518 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:52:32,518 INFO ]: ChcToBoogie took 103.08 ms. Allocated memory is still 309.3 MB. Free memory was 240.6 MB in the beginning and 237.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:32,519 INFO ]: Boogie Preprocessor took 69.72 ms. Allocated memory is still 309.3 MB. Free memory was 237.6 MB in the beginning and 236.6 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-22 10:52:32,519 INFO ]: RCFGBuilder took 1047.65 ms. Allocated memory is still 309.3 MB. Free memory was 235.6 MB in the beginning and 201.5 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:32,520 INFO ]: TraceAbstraction took 11967.34 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 200.5 MB in the beginning and 329.1 MB in the end (delta: -128.6 MB). Peak memory consumption was 46.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:32,524 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 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 103.08 ms. Allocated memory is still 309.3 MB. Free memory was 240.6 MB in the beginning and 237.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 69.72 ms. Allocated memory is still 309.3 MB. Free memory was 237.6 MB in the beginning and 236.6 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 1047.65 ms. Allocated memory is still 309.3 MB. Free memory was 235.6 MB in the beginning and 201.5 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 11967.34 ms. Allocated memory was 309.3 MB in the beginning and 483.9 MB in the end (delta: 174.6 MB). Free memory was 200.5 MB in the beginning and 329.1 MB in the end (delta: -128.6 MB). Peak memory consumption was 46.0 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 39 procedures, 163 locations, 1 error locations. SAFE Result, 11.9s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 5.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2293 SDtfs, 159 SDslu, 28895 SDs, 0 SdLazy, 4265 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=584occurred in iteration=9, 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: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 162 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1499 NumberOfCodeBlocks, 1499 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1488 ConstructedInterpolants, 0 QuantifiedInterpolants, 321512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 240/240 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/25.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-52-32-533.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/25.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-52-32-533.csv Received shutdown request...