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/03.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:47:18,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:47:18,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:47:18,968 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:47:18,968 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:47:18,969 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:47:18,970 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:47:18,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:47:18,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:47:18,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:47:18,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:47:18,980 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:47:18,981 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:47:18,982 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:47:18,983 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:47:18,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:47:18,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:47:18,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:47:18,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:47:18,990 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:47:18,991 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:47:18,993 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:47:18,993 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:47:18,994 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:47:18,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:47:18,995 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:47:18,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:47:18,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:47:18,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:47:18,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:47:18,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:47:18,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:47:19,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:47:19,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:47:19,001 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:47:19,002 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 10:47:19,019 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:47:19,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:47:19,019 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:47:19,020 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:47:19,025 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 10:47:19,026 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 10:47:19,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:47:19,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:47:19,026 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:47:19,027 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:47:19,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:47:19,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:47:19,027 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:47:19,027 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:47:19,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:47:19,028 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:47:19,028 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:47:19,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:47:19,028 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:47:19,031 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:47:19,031 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:47:19,071 INFO ]: Repository-Root is: /tmp [2018-06-22 10:47:19,087 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:47:19,091 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:47:19,092 INFO ]: Initializing SmtParser... [2018-06-22 10:47:19,093 INFO ]: SmtParser initialized [2018-06-22 10:47:19,093 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/03.c.smt2 [2018-06-22 10:47:19,095 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 10:47:19,187 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/03.c.smt2 unknown [2018-06-22 10:47:19,678 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/03.c.smt2 [2018-06-22 10:47:19,683 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:47:19,689 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:47:19,691 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:47:19,691 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:47:19,691 INFO ]: ChcToBoogie initialized [2018-06-22 10:47:19,694 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,745 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19 Unit [2018-06-22 10:47:19,745 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:47:19,745 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:47:19,745 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:47:19,745 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:47:19,764 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,764 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,777 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,777 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,792 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,794 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,796 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (1/1) ... [2018-06-22 10:47:19,801 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:47:19,802 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:47:19,802 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:47:19,802 INFO ]: RCFGBuilder initialized [2018-06-22 10:47:19,813 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (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 10:47:19,825 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure False [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure False [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h33 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h33 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h33 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h29 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h29 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h29 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h28 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h28 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h28 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h27 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h27 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h27 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h26 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h26 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h26 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h25 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h25 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h25 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h24 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h24 [2018-06-22 10:47:19,825 INFO ]: Found implementation of procedure h24 [2018-06-22 10:47:19,825 INFO ]: Specification and implementation of procedure h23 given in one single declaration [2018-06-22 10:47:19,825 INFO ]: Found specification of procedure h23 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h23 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h22 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h22 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h22 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h21 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h21 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h21 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h20 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h20 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h20 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h17 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h17 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h17 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h16 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h16 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h16 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h15 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h15 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h15 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h14 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h14 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h14 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h10 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h10 [2018-06-22 10:47:19,826 INFO ]: Found implementation of procedure h10 [2018-06-22 10:47:19,826 INFO ]: Specification and implementation of procedure h9 given in one single declaration [2018-06-22 10:47:19,826 INFO ]: Found specification of procedure h9 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h9 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h8 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h8 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h8 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h7 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h7 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h7 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h6 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h6 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h6 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h5 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h5 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h5 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h4 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h4 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h4 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h3 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h3 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h3 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h2 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h2 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h2 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h1 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h1 [2018-06-22 10:47:19,827 INFO ]: Found implementation of procedure h1 [2018-06-22 10:47:19,827 INFO ]: Specification and implementation of procedure h36 given in one single declaration [2018-06-22 10:47:19,827 INFO ]: Found specification of procedure h36 [2018-06-22 10:47:19,828 INFO ]: Found implementation of procedure h36 [2018-06-22 10:47:19,828 INFO ]: Specification and implementation of procedure h32 given in one single declaration [2018-06-22 10:47:19,828 INFO ]: Found specification of procedure h32 [2018-06-22 10:47:19,830 INFO ]: Found implementation of procedure h32 [2018-06-22 10:47:19,830 INFO ]: Specification and implementation of procedure h31 given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h31 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h31 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure h30 given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h30 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h30 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure h19 given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h19 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h19 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure h18 given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h18 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h18 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure h35 given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h35 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h35 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure h34 given in one single declaration Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure h34 [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure h34 [2018-06-22 10:47:19,831 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:47:19,831 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:47:19,831 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 10:47:20,235 INFO ]: Using library mode [2018-06-22 10:47:20,236 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:47:20 BoogieIcfgContainer [2018-06-22 10:47:20,236 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:47:20,238 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:47:20,238 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:47:20,241 INFO ]: TraceAbstraction initialized [2018-06-22 10:47:20,241 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:47:19" (1/3) ... [2018-06-22 10:47:20,242 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503042ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:47:20, skipping insertion in model container [2018-06-22 10:47:20,242 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:47:19" (2/3) ... [2018-06-22 10:47:20,243 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503042ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:47:20, skipping insertion in model container [2018-06-22 10:47:20,243 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:47:20" (3/3) ... [2018-06-22 10:47:20,245 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:47:20,254 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:47:20,263 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:47:20,304 INFO ]: Using default assertion order modulation [2018-06-22 10:47:20,304 INFO ]: Interprodecural is true [2018-06-22 10:47:20,304 INFO ]: Hoare is false [2018-06-22 10:47:20,304 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:47:20,304 INFO ]: Backedges is TWOTRACK [2018-06-22 10:47:20,304 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:47:20,304 INFO ]: Difference is false [2018-06-22 10:47:20,305 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:47:20,305 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:47:20,325 INFO ]: Start isEmpty. Operand 143 states. [2018-06-22 10:47:20,344 INFO ]: Finished isEmpty. Found accepting run of length 106 [2018-06-22 10:47:20,344 INFO ]: Found error trace [2018-06-22 10:47:20,345 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 10:47:20,346 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:20,350 INFO ]: Analyzing trace with hash -1570472484, now seen corresponding path program 1 times [2018-06-22 10:47:20,351 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:20,351 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:20,384 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:20,384 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:20,384 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:20,489 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:21,955 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:47:21,957 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:47:21,958 INFO ]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2018-06-22 10:47:21,960 INFO ]: Interpolant automaton has 26 states [2018-06-22 10:47:21,975 INFO ]: Constructing interpolant automaton starting with 26 interpolants. [2018-06-22 10:47:21,976 INFO ]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2018-06-22 10:47:21,979 INFO ]: Start difference. First operand 143 states. Second operand 26 states. [2018-06-22 10:47:23,580 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:23,581 INFO ]: Finished difference Result 177 states and 184 transitions. [2018-06-22 10:47:23,581 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-22 10:47:23,582 INFO ]: Start accepts. Automaton has 26 states. Word has length 105 [2018-06-22 10:47:23,583 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:23,595 INFO ]: With dead ends: 177 [2018-06-22 10:47:23,595 INFO ]: Without dead ends: 177 [2018-06-22 10:47:23,597 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2018-06-22 10:47:23,610 INFO ]: Start minimizeSevpa. Operand 177 states. [2018-06-22 10:47:23,649 INFO ]: Finished minimizeSevpa. Reduced states from 177 to 177. [2018-06-22 10:47:23,650 INFO ]: Start removeUnreachable. Operand 177 states. [2018-06-22 10:47:23,654 INFO ]: Finished removeUnreachable. Reduced from 177 states to 177 states and 184 transitions. [2018-06-22 10:47:23,655 INFO ]: Start accepts. Automaton has 177 states and 184 transitions. Word has length 105 [2018-06-22 10:47:23,656 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:23,656 INFO ]: Abstraction has 177 states and 184 transitions. [2018-06-22 10:47:23,656 INFO ]: Interpolant automaton has 26 states. [2018-06-22 10:47:23,656 INFO ]: Start isEmpty. Operand 177 states and 184 transitions. [2018-06-22 10:47:23,660 INFO ]: Finished isEmpty. Found accepting run of length 122 [2018-06-22 10:47:23,660 INFO ]: Found error trace [2018-06-22 10:47:23,660 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 10:47:23,660 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:23,661 INFO ]: Analyzing trace with hash 173554401, now seen corresponding path program 1 times [2018-06-22 10:47:23,661 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:23,661 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:23,661 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:23,662 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:23,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:23,694 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:24,148 INFO ]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:47:24,148 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:47:24,148 INFO ]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-06-22 10:47:24,150 INFO ]: Interpolant automaton has 28 states [2018-06-22 10:47:24,151 INFO ]: Constructing interpolant automaton starting with 28 interpolants. [2018-06-22 10:47:24,151 INFO ]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2018-06-22 10:47:24,151 INFO ]: Start difference. First operand 177 states and 184 transitions. Second operand 28 states. [2018-06-22 10:47:24,873 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:24,873 INFO ]: Finished difference Result 205 states and 214 transitions. [2018-06-22 10:47:24,874 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-06-22 10:47:24,874 INFO ]: Start accepts. Automaton has 28 states. Word has length 121 [2018-06-22 10:47:24,875 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:24,879 INFO ]: With dead ends: 205 [2018-06-22 10:47:24,880 INFO ]: Without dead ends: 205 [2018-06-22 10:47:24,881 INFO ]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=755, Unknown=0, NotChecked=0, Total=812 [2018-06-22 10:47:24,881 INFO ]: Start minimizeSevpa. Operand 205 states. [2018-06-22 10:47:24,901 INFO ]: Finished minimizeSevpa. Reduced states from 205 to 181. [2018-06-22 10:47:24,901 INFO ]: Start removeUnreachable. Operand 181 states. [2018-06-22 10:47:24,903 INFO ]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2018-06-22 10:47:24,903 INFO ]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 121 [2018-06-22 10:47:24,904 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:24,904 INFO ]: Abstraction has 181 states and 188 transitions. [2018-06-22 10:47:24,904 INFO ]: Interpolant automaton has 28 states. [2018-06-22 10:47:24,904 INFO ]: Start isEmpty. Operand 181 states and 188 transitions. [2018-06-22 10:47:24,911 INFO ]: Finished isEmpty. Found accepting run of length 130 [2018-06-22 10:47:24,911 INFO ]: Found error trace [2018-06-22 10:47:24,911 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 10:47:24,911 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:24,911 INFO ]: Analyzing trace with hash -619456797, now seen corresponding path program 1 times [2018-06-22 10:47:24,911 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:24,911 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:24,912 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:24,912 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:24,912 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:24,952 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:25,059 INFO ]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-06-22 10:47:25,059 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:47:25,059 INFO ]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-06-22 10:47:25,060 INFO ]: Interpolant automaton has 10 states [2018-06-22 10:47:25,060 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-22 10:47:25,060 INFO ]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-06-22 10:47:25,060 INFO ]: Start difference. First operand 181 states and 188 transitions. Second operand 10 states. [2018-06-22 10:47:25,131 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:25,131 INFO ]: Finished difference Result 189 states and 197 transitions. [2018-06-22 10:47:25,131 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 10:47:25,131 INFO ]: Start accepts. Automaton has 10 states. Word has length 129 [2018-06-22 10:47:25,132 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:25,135 INFO ]: With dead ends: 189 [2018-06-22 10:47:25,135 INFO ]: Without dead ends: 189 [2018-06-22 10:47:25,135 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-06-22 10:47:25,135 INFO ]: Start minimizeSevpa. Operand 189 states. [2018-06-22 10:47:25,150 INFO ]: Finished minimizeSevpa. Reduced states from 189 to 181. [2018-06-22 10:47:25,150 INFO ]: Start removeUnreachable. Operand 181 states. [2018-06-22 10:47:25,152 INFO ]: Finished removeUnreachable. Reduced from 181 states to 181 states and 188 transitions. [2018-06-22 10:47:25,152 INFO ]: Start accepts. Automaton has 181 states and 188 transitions. Word has length 129 [2018-06-22 10:47:25,152 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:25,152 INFO ]: Abstraction has 181 states and 188 transitions. [2018-06-22 10:47:25,152 INFO ]: Interpolant automaton has 10 states. [2018-06-22 10:47:25,153 INFO ]: Start isEmpty. Operand 181 states and 188 transitions. [2018-06-22 10:47:25,156 INFO ]: Finished isEmpty. Found accepting run of length 186 [2018-06-22 10:47:25,156 INFO ]: Found error trace [2018-06-22 10:47:25,156 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 10:47:25,156 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:25,156 INFO ]: Analyzing trace with hash 306555097, now seen corresponding path program 1 times [2018-06-22 10:47:25,157 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:25,157 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:25,157 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:25,157 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:25,157 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:25,192 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:26,372 INFO ]: Checked inductivity of 63 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-06-22 10:47:26,372 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:47:26,372 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 10:47:26,378 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:26,508 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:26,528 INFO ]: Computing forward predicates... [2018-06-22 10:47:27,797 INFO ]: Checked inductivity of 63 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2018-06-22 10:47:27,826 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:47:27,826 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 18] total 51 [2018-06-22 10:47:27,827 INFO ]: Interpolant automaton has 51 states [2018-06-22 10:47:27,827 INFO ]: Constructing interpolant automaton starting with 51 interpolants. [2018-06-22 10:47:27,828 INFO ]: CoverageRelationStatistics Valid=100, Invalid=2450, Unknown=0, NotChecked=0, Total=2550 [2018-06-22 10:47:27,828 INFO ]: Start difference. First operand 181 states and 188 transitions. Second operand 51 states. [2018-06-22 10:47:29,578 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:29,579 INFO ]: Finished difference Result 261 states and 271 transitions. [2018-06-22 10:47:29,580 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-06-22 10:47:29,580 INFO ]: Start accepts. Automaton has 51 states. Word has length 185 [2018-06-22 10:47:29,581 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:29,583 INFO ]: With dead ends: 261 [2018-06-22 10:47:29,583 INFO ]: Without dead ends: 261 [2018-06-22 10:47:29,585 INFO ]: 0 DeclaredPredicates, 245 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=171, Invalid=4119, Unknown=0, NotChecked=0, Total=4290 [2018-06-22 10:47:29,585 INFO ]: Start minimizeSevpa. Operand 261 states. [2018-06-22 10:47:29,602 INFO ]: Finished minimizeSevpa. Reduced states from 261 to 205. [2018-06-22 10:47:29,602 INFO ]: Start removeUnreachable. Operand 205 states. [2018-06-22 10:47:29,604 INFO ]: Finished removeUnreachable. Reduced from 205 states to 205 states and 214 transitions. [2018-06-22 10:47:29,604 INFO ]: Start accepts. Automaton has 205 states and 214 transitions. Word has length 185 [2018-06-22 10:47:29,605 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:29,605 INFO ]: Abstraction has 205 states and 214 transitions. [2018-06-22 10:47:29,605 INFO ]: Interpolant automaton has 51 states. [2018-06-22 10:47:29,605 INFO ]: Start isEmpty. Operand 205 states and 214 transitions. [2018-06-22 10:47:29,609 INFO ]: Finished isEmpty. Found accepting run of length 202 [2018-06-22 10:47:29,609 INFO ]: Found error trace [2018-06-22 10:47:29,609 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 10:47:29,609 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:29,609 INFO ]: Analyzing trace with hash -1317592866, now seen corresponding path program 1 times [2018-06-22 10:47:29,609 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:29,609 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:29,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:29,610 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:29,610 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:29,640 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:30,372 INFO ]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-06-22 10:47:30,372 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:47:30,385 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 10:47:30,392 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:30,510 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:30,534 INFO ]: Computing forward predicates... [2018-06-22 10:47:31,732 INFO ]: Checked inductivity of 77 backedges. 26 proven. 11 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-06-22 10:47:31,754 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:47:31,754 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32] total 67 [2018-06-22 10:47:31,755 INFO ]: Interpolant automaton has 67 states [2018-06-22 10:47:31,755 INFO ]: Constructing interpolant automaton starting with 67 interpolants. [2018-06-22 10:47:31,756 INFO ]: CoverageRelationStatistics Valid=133, Invalid=4289, Unknown=0, NotChecked=0, Total=4422 [2018-06-22 10:47:31,756 INFO ]: Start difference. First operand 205 states and 214 transitions. Second operand 67 states. [2018-06-22 10:47:37,981 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:37,981 INFO ]: Finished difference Result 448 states and 534 transitions. [2018-06-22 10:47:37,981 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-06-22 10:47:37,982 INFO ]: Start accepts. Automaton has 67 states. Word has length 201 [2018-06-22 10:47:37,982 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:37,987 INFO ]: With dead ends: 448 [2018-06-22 10:47:37,987 INFO ]: Without dead ends: 205 [2018-06-22 10:47:37,990 INFO ]: 0 DeclaredPredicates, 288 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=302, Invalid=9798, Unknown=0, NotChecked=0, Total=10100 [2018-06-22 10:47:37,990 INFO ]: Start minimizeSevpa. Operand 205 states. [2018-06-22 10:47:38,008 INFO ]: Finished minimizeSevpa. Reduced states from 205 to 197. [2018-06-22 10:47:38,008 INFO ]: Start removeUnreachable. Operand 197 states. [2018-06-22 10:47:38,010 INFO ]: Finished removeUnreachable. Reduced from 197 states to 197 states and 203 transitions. [2018-06-22 10:47:38,010 INFO ]: Start accepts. Automaton has 197 states and 203 transitions. Word has length 201 [2018-06-22 10:47:38,010 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:38,010 INFO ]: Abstraction has 197 states and 203 transitions. [2018-06-22 10:47:38,011 INFO ]: Interpolant automaton has 67 states. [2018-06-22 10:47:38,011 INFO ]: Start isEmpty. Operand 197 states and 203 transitions. [2018-06-22 10:47:38,014 INFO ]: Finished isEmpty. Found accepting run of length 242 [2018-06-22 10:47:38,014 INFO ]: Found error trace [2018-06-22 10:47:38,015 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 10:47:38,015 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:47:38,015 INFO ]: Analyzing trace with hash 323694186, now seen corresponding path program 1 times [2018-06-22 10:47:38,015 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:47:38,015 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:47:38,016 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:38,016 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:38,016 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:47:38,052 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:39,421 INFO ]: Checked inductivity of 129 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-06-22 10:47:39,421 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:47:39,421 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 10:47:39,427 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:47:39,547 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:47:39,566 INFO ]: Computing forward predicates... [2018-06-22 10:47:41,152 INFO ]: Checked inductivity of 129 backedges. 53 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-06-22 10:47:41,173 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:47:41,173 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40] total 68 [2018-06-22 10:47:41,174 INFO ]: Interpolant automaton has 68 states [2018-06-22 10:47:41,174 INFO ]: Constructing interpolant automaton starting with 68 interpolants. [2018-06-22 10:47:41,175 INFO ]: CoverageRelationStatistics Valid=137, Invalid=4419, Unknown=0, NotChecked=0, Total=4556 [2018-06-22 10:47:41,175 INFO ]: Start difference. First operand 197 states and 203 transitions. Second operand 68 states. [2018-06-22 10:47:46,144 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:47:46,144 INFO ]: Finished difference Result 303 states and 392 transitions. [2018-06-22 10:47:46,144 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2018-06-22 10:47:46,144 INFO ]: Start accepts. Automaton has 68 states. Word has length 241 [2018-06-22 10:47:46,145 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:47:46,145 INFO ]: With dead ends: 303 [2018-06-22 10:47:46,145 INFO ]: Without dead ends: 0 [2018-06-22 10:47:46,148 INFO ]: 0 DeclaredPredicates, 349 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=339, Invalid=11871, Unknown=0, NotChecked=0, Total=12210 [2018-06-22 10:47:46,148 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 10:47:46,148 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 10:47:46,148 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 10:47:46,148 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 10:47:46,148 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 241 [2018-06-22 10:47:46,148 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:47:46,148 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 10:47:46,148 INFO ]: Interpolant automaton has 68 states. [2018-06-22 10:47:46,148 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 10:47:46,148 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 10:47:46,155 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:47:46 BoogieIcfgContainer [2018-06-22 10:47:46,155 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:47:46,156 INFO ]: Toolchain (without parser) took 26472.57 ms. Allocated memory was 306.2 MB in the beginning and 676.9 MB in the end (delta: 370.7 MB). Free memory was 244.6 MB in the beginning and 386.2 MB in the end (delta: -141.7 MB). Peak memory consumption was 229.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:47:46,157 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:47:46,158 INFO ]: ChcToBoogie took 53.83 ms. Allocated memory is still 306.2 MB. Free memory was 244.6 MB in the beginning and 242.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:47:46,158 INFO ]: Boogie Preprocessor took 55.95 ms. Allocated memory is still 306.2 MB. Free memory was 242.6 MB in the beginning and 240.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:47:46,159 INFO ]: RCFGBuilder took 434.00 ms. Allocated memory is still 306.2 MB. Free memory was 240.6 MB in the beginning and 215.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 3.6 GB. [2018-06-22 10:47:46,159 INFO ]: TraceAbstraction took 25917.33 ms. Allocated memory was 306.2 MB in the beginning and 676.9 MB in the end (delta: 370.7 MB). Free memory was 214.5 MB in the beginning and 386.2 MB in the end (delta: -171.7 MB). Peak memory consumption was 199.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:47:46,162 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 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 53.83 ms. Allocated memory is still 306.2 MB. Free memory was 244.6 MB in the beginning and 242.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 55.95 ms. Allocated memory is still 306.2 MB. Free memory was 242.6 MB in the beginning and 240.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 434.00 ms. Allocated memory is still 306.2 MB. Free memory was 240.6 MB in the beginning and 215.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 25917.33 ms. Allocated memory was 306.2 MB in the beginning and 676.9 MB in the end (delta: 370.7 MB). Free memory was 214.5 MB in the beginning and 386.2 MB in the end (delta: -171.7 MB). Peak memory consumption was 199.0 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 35 procedures, 143 locations, 1 error locations. SAFE Result, 25.8s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 15.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 931 SDtfs, 102 SDslu, 39033 SDs, 0 SdLazy, 16661 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 951 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 333 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 11.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred 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, 96 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 1609 NumberOfCodeBlocks, 1609 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1600 ConstructedInterpolants, 0 QuantifiedInterpolants, 550528 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3283 ConjunctsInSsa, 151 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 489/560 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/03.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-47-46-172.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/03.c.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-47-46-172.csv Received shutdown request...