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/27.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:52:35,138 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:52:35,140 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:52:35,156 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:52:35,156 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:52:35,157 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:52:35,158 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:52:35,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:52:35,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:52:35,163 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:52:35,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:52:35,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:52:35,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:52:35,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:52:35,167 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:52:35,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:52:35,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:52:35,172 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:52:35,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:52:35,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:52:35,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:52:35,177 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:52:35,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:52:35,178 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:52:35,179 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:52:35,180 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:52:35,180 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:52:35,181 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:52:35,182 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:52:35,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:52:35,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:52:35,183 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:52:35,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:52:35,184 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:52:35,185 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:52:35,185 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 10:52:35,198 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:52:35,198 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:52:35,200 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:52:35,200 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:52:35,201 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:52:35,201 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:52:35,201 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:52:35,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:52:35,202 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:52:35,202 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:52:35,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:52:35,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:52:35,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:52:35,204 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:52:35,206 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:52:35,207 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:52:35,254 INFO ]: Repository-Root is: /tmp [2018-06-22 10:52:35,268 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:52:35,275 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:52:35,276 INFO ]: Initializing SmtParser... [2018-06-22 10:52:35,276 INFO ]: SmtParser initialized [2018-06-22 10:52:35,277 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 [2018-06-22 10:52:35,278 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 10:52:35,369 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 unknown [2018-06-22 10:52:35,850 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/27.c.smt2 [2018-06-22 10:52:35,854 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:52:35,869 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:52:35,870 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:52:35,870 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:52:35,870 INFO ]: ChcToBoogie initialized [2018-06-22 10:52:35,873 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:35,976 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35 Unit [2018-06-22 10:52:35,977 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:52:35,977 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:52:35,977 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:52:35,977 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:52:36,003 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,004 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,018 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,018 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,025 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,032 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,034 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (1/1) ... [2018-06-22 10:52:36,037 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:52:36,038 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:52:36,038 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:52:36,038 INFO ]: RCFGBuilder initialized [2018-06-22 10:52:36,039 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:52:36,047 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:52:36,047 INFO ]: Found specification of procedure False [2018-06-22 10:52:36,047 INFO ]: Found implementation of procedure False [2018-06-22 10:52:36,047 INFO ]: Specification and implementation of procedure h33 given in one single declaration [2018-06-22 10:52:36,047 INFO ]: Found specification of procedure h33 [2018-06-22 10:52:36,047 INFO ]: Found implementation of procedure h33 [2018-06-22 10:52:36,047 INFO ]: Specification and implementation of procedure h29 given in one single declaration [2018-06-22 10:52:36,047 INFO ]: Found specification of procedure h29 [2018-06-22 10:52:36,047 INFO ]: Found implementation of procedure h29 [2018-06-22 10:52:36,047 INFO ]: Specification and implementation of procedure h28 given in one single declaration [2018-06-22 10:52:36,047 INFO ]: Found specification of procedure h28 [2018-06-22 10:52:36,047 INFO ]: Found implementation of procedure h28 [2018-06-22 10:52:36,047 INFO ]: Specification and implementation of procedure h27 given in one single declaration [2018-06-22 10:52:36,047 INFO ]: Found specification of procedure h27 [2018-06-22 10:52:36,047 INFO ]: Found implementation of procedure h27 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h26 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h26 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h26 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h25 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h25 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h25 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h24 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h24 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h24 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h23 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h23 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h23 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h22 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h22 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h22 [2018-06-22 10:52:36,048 INFO ]: Specification and implementation of procedure h21 given in one single declaration [2018-06-22 10:52:36,048 INFO ]: Found specification of procedure h21 [2018-06-22 10:52:36,048 INFO ]: Found implementation of procedure h21 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h20 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h20 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h20 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h17 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h17 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h16 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h16 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h16 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h19 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h19 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h18 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h18 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h15 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h15 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h14 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h14 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h10 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h10 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:52:36,049 INFO ]: Found specification of procedure h9 [2018-06-22 10:52:36,049 INFO ]: Found implementation of procedure h9 [2018-06-22 10:52:36,049 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h8 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h8 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h7 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h7 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h6 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h6 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h5 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h5 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h4 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h4 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h3 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h3 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h2 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h2 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h1 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h1 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h36 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h36 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h36 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h32 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h32 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h32 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h31 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h31 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h31 [2018-06-22 10:52:36,050 INFO ]: Specification and implementation of procedure h30 given in one single declaration [2018-06-22 10:52:36,050 INFO ]: Found specification of procedure h30 [2018-06-22 10:52:36,050 INFO ]: Found implementation of procedure h30 [2018-06-22 10:52:36,051 INFO ]: Specification and implementation of procedure h35 given in one single declaration [2018-06-22 10:52:36,051 INFO ]: Found specification of procedure h35 [2018-06-22 10:52:36,051 INFO ]: Found implementation of procedure h35 [2018-06-22 10:52:36,051 INFO ]: Specification and implementation of procedure h34 given in one single declaration [2018-06-22 10:52:36,051 INFO ]: Found specification of procedure h34 [2018-06-22 10:52:36,051 INFO ]: Found implementation of procedure h34 [2018-06-22 10:52:36,051 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:52:36,051 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:52:36,051 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:52:36,520 INFO ]: Using library mode [2018-06-22 10:52:36,521 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:52:36 BoogieIcfgContainer [2018-06-22 10:52:36,521 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:52:36,529 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:52:36,529 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:52:36,532 INFO ]: TraceAbstraction initialized [2018-06-22 10:52:36,532 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:52:35" (1/3) ... [2018-06-22 10:52:36,535 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4327666a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:52:36, skipping insertion in model container [2018-06-22 10:52:36,535 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:52:35" (2/3) ... [2018-06-22 10:52:36,535 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4327666a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:52:36, skipping insertion in model container [2018-06-22 10:52:36,535 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:52:36" (3/3) ... [2018-06-22 10:52:36,537 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:52:36,548 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:52:36,561 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:52:36,595 INFO ]: Using default assertion order modulation [2018-06-22 10:52:36,596 INFO ]: Interprodecural is true [2018-06-22 10:52:36,596 INFO ]: Hoare is false [2018-06-22 10:52:36,596 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:52:36,596 INFO ]: Backedges is TWOTRACK [2018-06-22 10:52:36,596 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:52:36,596 INFO ]: Difference is false [2018-06-22 10:52:36,596 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:52:36,596 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:52:36,617 INFO ]: Start isEmpty. Operand 143 states. [2018-06-22 10:52:36,637 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 10:52:36,637 INFO ]: Found error trace [2018-06-22 10:52:36,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:52:36,638 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:36,642 INFO ]: Analyzing trace with hash 320794297, now seen corresponding path program 1 times [2018-06-22 10:52:36,644 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:36,644 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:36,676 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:36,676 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:36,676 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:36,792 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:37,095 WARN ]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-06-22 10:52:38,029 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:52:38,032 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:38,032 INFO ]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2018-06-22 10:52:38,035 INFO ]: Interpolant automaton has 24 states [2018-06-22 10:52:38,052 INFO ]: Constructing interpolant automaton starting with 24 interpolants. [2018-06-22 10:52:38,055 INFO ]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-06-22 10:52:38,059 INFO ]: Start difference. First operand 143 states. Second operand 24 states. [2018-06-22 10:52:39,313 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:39,313 INFO ]: Finished difference Result 177 states and 184 transitions. [2018-06-22 10:52:39,314 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-06-22 10:52:39,315 INFO ]: Start accepts. Automaton has 24 states. Word has length 105 [2018-06-22 10:52:39,316 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:39,329 INFO ]: With dead ends: 177 [2018-06-22 10:52:39,329 INFO ]: Without dead ends: 177 [2018-06-22 10:52:39,331 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2018-06-22 10:52:39,345 INFO ]: Start minimizeSevpa. Operand 177 states. [2018-06-22 10:52:39,390 INFO ]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-06-22 10:52:39,391 INFO ]: Start removeUnreachable. Operand 177 states. [2018-06-22 10:52:39,395 INFO ]: Finished removeUnreachable. Reduced from 177 states to 177 states and 184 transitions. [2018-06-22 10:52:39,396 INFO ]: Start accepts. Automaton has 177 states and 184 transitions. Word has length 105 [2018-06-22 10:52:39,397 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:39,397 INFO ]: Abstraction has 177 states and 184 transitions. [2018-06-22 10:52:39,409 INFO ]: Interpolant automaton has 24 states. [2018-06-22 10:52:39,410 INFO ]: Start isEmpty. Operand 177 states and 184 transitions. [2018-06-22 10:52:39,415 INFO ]: Finished isEmpty. Found accepting run of length 122 [2018-06-22 10:52:39,415 INFO ]: Found error trace [2018-06-22 10:52:39,415 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:52:39,415 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:39,415 INFO ]: Analyzing trace with hash -1908841503, now seen corresponding path program 1 times [2018-06-22 10:52:39,415 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:39,415 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:39,416 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:39,416 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:39,416 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:39,455 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:40,015 INFO ]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:40,016 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:40,016 INFO ]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-06-22 10:52:40,021 INFO ]: Interpolant automaton has 26 states [2018-06-22 10:52:40,022 INFO ]: Constructing interpolant automaton starting with 26 interpolants. [2018-06-22 10:52:40,022 INFO ]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:52:40,022 INFO ]: Start difference. First operand 177 states and 184 transitions. Second operand 26 states. [2018-06-22 10:52:40,795 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:40,795 INFO ]: Finished difference Result 205 states and 214 transitions. [2018-06-22 10:52:40,795 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-22 10:52:40,795 INFO ]: Start accepts. Automaton has 26 states. Word has length 121 [2018-06-22 10:52:40,796 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:40,801 INFO ]: With dead ends: 205 [2018-06-22 10:52:40,801 INFO ]: Without dead ends: 205 [2018-06-22 10:52:40,802 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:52:40,802 INFO ]: Start minimizeSevpa. Operand 205 states. [2018-06-22 10:52:40,822 INFO ]: Finished minimizeSevpa. Reduced states from 205 to 181. [2018-06-22 10:52:40,823 INFO ]: Start removeUnreachable. Operand 181 states. [2018-06-22 10:52:40,825 INFO ]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2018-06-22 10:52:40,825 INFO ]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 121 [2018-06-22 10:52:40,825 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:40,825 INFO ]: Abstraction has 181 states and 188 transitions. [2018-06-22 10:52:40,825 INFO ]: Interpolant automaton has 26 states. [2018-06-22 10:52:40,825 INFO ]: Start isEmpty. Operand 181 states and 188 transitions. [2018-06-22 10:52:40,828 INFO ]: Finished isEmpty. Found accepting run of length 130 [2018-06-22 10:52:40,828 INFO ]: Found error trace [2018-06-22 10:52:40,828 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, 1, 1, 1, 1] [2018-06-22 10:52:40,828 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:40,829 INFO ]: Analyzing trace with hash 1052959808, now seen corresponding path program 1 times [2018-06-22 10:52:40,829 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:40,829 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:40,829 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:40,829 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:40,830 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:40,851 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:40,933 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:52:40,933 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:40,933 INFO ]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-06-22 10:52:40,934 INFO ]: Interpolant automaton has 9 states [2018-06-22 10:52:40,934 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 10:52:40,934 INFO ]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-06-22 10:52:40,934 INFO ]: Start difference. First operand 181 states and 188 transitions. Second operand 9 states. [2018-06-22 10:52:41,026 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:41,026 INFO ]: Finished difference Result 209 states and 223 transitions. [2018-06-22 10:52:41,026 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 10:52:41,026 INFO ]: Start accepts. Automaton has 9 states. Word has length 129 [2018-06-22 10:52:41,027 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:41,030 INFO ]: With dead ends: 209 [2018-06-22 10:52:41,030 INFO ]: Without dead ends: 205 [2018-06-22 10:52:41,031 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-06-22 10:52:41,031 INFO ]: Start minimizeSevpa. Operand 205 states. [2018-06-22 10:52:41,054 INFO ]: Finished minimizeSevpa. Reduced states from 205 to 197. [2018-06-22 10:52:41,054 INFO ]: Start removeUnreachable. Operand 197 states. [2018-06-22 10:52:41,056 INFO ]: Finished removeUnreachable. Reduced from 197 states to 197 states and 207 transitions. [2018-06-22 10:52:41,056 INFO ]: Start accepts. Automaton has 197 states and 207 transitions. Word has length 129 [2018-06-22 10:52:41,056 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:41,056 INFO ]: Abstraction has 197 states and 207 transitions. [2018-06-22 10:52:41,056 INFO ]: Interpolant automaton has 9 states. [2018-06-22 10:52:41,056 INFO ]: Start isEmpty. Operand 197 states and 207 transitions. [2018-06-22 10:52:41,060 INFO ]: Finished isEmpty. Found accepting run of length 186 [2018-06-22 10:52:41,060 INFO ]: Found error trace [2018-06-22 10:52:41,060 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, 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, 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] [2018-06-22 10:52:41,060 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:41,061 INFO ]: Analyzing trace with hash 1305102963, now seen corresponding path program 1 times [2018-06-22 10:52:41,061 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:41,061 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:41,061 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:41,061 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:41,061 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:41,096 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:41,645 INFO ]: Checked inductivity of 63 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-06-22 10:52:41,645 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:52:41,645 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 10:52:41,654 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:41,789 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:41,811 INFO ]: Computing forward predicates... [2018-06-22 10:52:42,221 INFO ]: Checked inductivity of 63 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-06-22 10:52:42,254 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:52:42,254 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 25 [2018-06-22 10:52:42,255 INFO ]: Interpolant automaton has 25 states [2018-06-22 10:52:42,255 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-22 10:52:42,255 INFO ]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2018-06-22 10:52:42,256 INFO ]: Start difference. First operand 197 states and 207 transitions. Second operand 25 states. [2018-06-22 10:52:42,800 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:42,800 INFO ]: Finished difference Result 245 states and 257 transitions. [2018-06-22 10:52:42,805 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 10:52:42,805 INFO ]: Start accepts. Automaton has 25 states. Word has length 185 [2018-06-22 10:52:42,806 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:42,809 INFO ]: With dead ends: 245 [2018-06-22 10:52:42,809 INFO ]: Without dead ends: 237 [2018-06-22 10:52:42,809 INFO ]: 0 DeclaredPredicates, 203 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:52:42,810 INFO ]: Start minimizeSevpa. Operand 237 states. [2018-06-22 10:52:42,825 INFO ]: Finished minimizeSevpa. Reduced states from 237 to 217. [2018-06-22 10:52:42,825 INFO ]: Start removeUnreachable. Operand 217 states. [2018-06-22 10:52:42,827 INFO ]: Finished removeUnreachable. Reduced from 217 states to 217 states and 229 transitions. [2018-06-22 10:52:42,827 INFO ]: Start accepts. Automaton has 217 states and 229 transitions. Word has length 185 [2018-06-22 10:52:42,827 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:42,828 INFO ]: Abstraction has 217 states and 229 transitions. [2018-06-22 10:52:42,828 INFO ]: Interpolant automaton has 25 states. [2018-06-22 10:52:42,828 INFO ]: Start isEmpty. Operand 217 states and 229 transitions. [2018-06-22 10:52:42,831 INFO ]: Finished isEmpty. Found accepting run of length 202 [2018-06-22 10:52:42,831 INFO ]: Found error trace [2018-06-22 10:52:42,832 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, 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, 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] [2018-06-22 10:52:42,832 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:42,832 INFO ]: Analyzing trace with hash 524627867, now seen corresponding path program 1 times [2018-06-22 10:52:42,832 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:42,832 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:42,833 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:42,833 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:42,833 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:42,866 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:43,622 INFO ]: Checked inductivity of 77 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-06-22 10:52:43,622 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:52:43,622 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 10:52:43,630 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:43,757 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:43,774 INFO ]: Computing forward predicates... [2018-06-22 10:52:44,100 INFO ]: Checked inductivity of 77 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-06-22 10:52:44,123 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:52:44,123 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 32] total 38 [2018-06-22 10:52:44,124 INFO ]: Interpolant automaton has 38 states [2018-06-22 10:52:44,124 INFO ]: Constructing interpolant automaton starting with 38 interpolants. [2018-06-22 10:52:44,124 INFO ]: CoverageRelationStatistics Valid=81, Invalid=1325, Unknown=0, NotChecked=0, Total=1406 [2018-06-22 10:52:44,124 INFO ]: Start difference. First operand 217 states and 229 transitions. Second operand 38 states. [2018-06-22 10:52:45,962 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:45,962 INFO ]: Finished difference Result 378 states and 431 transitions. [2018-06-22 10:52:45,962 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-06-22 10:52:45,962 INFO ]: Start accepts. Automaton has 38 states. Word has length 201 [2018-06-22 10:52:45,963 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:45,965 INFO ]: With dead ends: 378 [2018-06-22 10:52:45,965 INFO ]: Without dead ends: 213 [2018-06-22 10:52:45,966 INFO ]: 0 DeclaredPredicates, 240 GetRequests, 197 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=1780, Unknown=0, NotChecked=0, Total=1892 [2018-06-22 10:52:45,966 INFO ]: Start minimizeSevpa. Operand 213 states. [2018-06-22 10:52:45,990 INFO ]: Finished minimizeSevpa. Reduced states from 213 to 205. [2018-06-22 10:52:45,990 INFO ]: Start removeUnreachable. Operand 205 states. [2018-06-22 10:52:45,992 INFO ]: Finished removeUnreachable. Reduced from 205 states to 205 states and 212 transitions. [2018-06-22 10:52:45,992 INFO ]: Start accepts. Automaton has 205 states and 212 transitions. Word has length 201 [2018-06-22 10:52:45,993 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:45,993 INFO ]: Abstraction has 205 states and 212 transitions. [2018-06-22 10:52:45,993 INFO ]: Interpolant automaton has 38 states. [2018-06-22 10:52:45,993 INFO ]: Start isEmpty. Operand 205 states and 212 transitions. [2018-06-22 10:52:46,004 INFO ]: Finished isEmpty. Found accepting run of length 242 [2018-06-22 10:52:46,004 INFO ]: Found error trace [2018-06-22 10:52:46,004 INFO ]: trace histogram [4, 4, 4, 4, 4, 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, 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, 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] [2018-06-22 10:52:46,004 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:52:46,005 INFO ]: Analyzing trace with hash -63353270, now seen corresponding path program 1 times [2018-06-22 10:52:46,005 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:52:46,005 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:52:46,005 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:46,005 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:52:46,005 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:52:46,060 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:52:47,292 INFO ]: Checked inductivity of 129 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-06-22 10:52:47,293 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:52:47,293 INFO ]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2018-06-22 10:52:47,293 INFO ]: Interpolant automaton has 32 states [2018-06-22 10:52:47,293 INFO ]: Constructing interpolant automaton starting with 32 interpolants. [2018-06-22 10:52:47,293 INFO ]: CoverageRelationStatistics Valid=63, Invalid=929, Unknown=0, NotChecked=0, Total=992 [2018-06-22 10:52:47,294 INFO ]: Start difference. First operand 205 states and 212 transitions. Second operand 32 states. [2018-06-22 10:52:47,787 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:52:47,787 INFO ]: Finished difference Result 211 states and 218 transitions. [2018-06-22 10:52:47,787 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-06-22 10:52:47,787 INFO ]: Start accepts. Automaton has 32 states. Word has length 241 [2018-06-22 10:52:47,788 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:52:47,788 INFO ]: With dead ends: 211 [2018-06-22 10:52:47,788 INFO ]: Without dead ends: 0 [2018-06-22 10:52:47,788 INFO ]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=67, Invalid=989, Unknown=0, NotChecked=0, Total=1056 [2018-06-22 10:52:47,788 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:52:47,788 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:52:47,788 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:52:47,788 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:52:47,789 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2018-06-22 10:52:47,789 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:52:47,789 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:52:47,789 INFO ]: Interpolant automaton has 32 states. [2018-06-22 10:52:47,789 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:52:47,789 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:52:47,793 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:52:47 BoogieIcfgContainer [2018-06-22 10:52:47,793 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:52:47,794 INFO ]: Toolchain (without parser) took 11938.94 ms. Allocated memory was 303.6 MB in the beginning and 496.0 MB in the end (delta: 192.4 MB). Free memory was 244.0 MB in the beginning and 201.3 MB in the end (delta: 42.6 MB). Peak memory consumption was 235.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:47,795 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 303.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:52:47,795 INFO ]: ChcToBoogie took 107.05 ms. Allocated memory is still 303.6 MB. Free memory was 244.0 MB in the beginning and 242.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:47,796 INFO ]: Boogie Preprocessor took 60.24 ms. Allocated memory is still 303.6 MB. Free memory was 242.0 MB in the beginning and 240.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:47,796 INFO ]: RCFGBuilder took 483.06 ms. Allocated memory is still 303.6 MB. Free memory was 240.0 MB in the beginning and 214.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:47,797 INFO ]: TraceAbstraction took 11263.96 ms. Allocated memory was 303.6 MB in the beginning and 496.0 MB in the end (delta: 192.4 MB). Free memory was 214.0 MB in the beginning and 201.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 205.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:52:47,800 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 303.6 MB. Free memory is still 268.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 107.05 ms. Allocated memory is still 303.6 MB. Free memory was 244.0 MB in the beginning and 242.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 60.24 ms. Allocated memory is still 303.6 MB. Free memory was 242.0 MB in the beginning and 240.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 483.06 ms. Allocated memory is still 303.6 MB. Free memory was 240.0 MB in the beginning and 214.0 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 11263.96 ms. Allocated memory was 303.6 MB in the beginning and 496.0 MB in the end (delta: 192.4 MB). Free memory was 214.0 MB in the beginning and 201.3 MB in the end (delta: 12.7 MB). Peak memory consumption was 205.1 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 35 procedures, 143 locations, 1 error locations. SAFE Result, 11.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 5.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 898 SDtfs, 44 SDslu, 20419 SDs, 0 SdLazy, 4681 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 541 GetRequests, 388 SyntacticMatches, 3 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=217occurred in iteration=4, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 60 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1368 NumberOfCodeBlocks, 1368 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1360 ConstructedInterpolants, 0 QuantifiedInterpolants, 379360 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2019 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 404/431 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/27.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-52-47-810.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/27.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-52-47-810.csv Received shutdown request...