java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/HOLA/13.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 17:40:57,873 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 17:40:57,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 17:40:57,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 17:40:57,890 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 17:40:57,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 17:40:57,893 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 17:40:57,900 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 17:40:57,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 17:40:57,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 17:40:57,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 17:40:57,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 17:40:57,907 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 17:40:57,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 17:40:57,911 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 17:40:57,912 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 17:40:57,912 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 17:40:57,921 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 17:40:57,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 17:40:57,924 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 17:40:57,928 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 17:40:57,929 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 17:40:57,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 17:40:57,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 17:40:57,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 17:40:57,934 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 17:40:57,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 17:40:57,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 17:40:57,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 17:40:57,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 17:40:57,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 17:40:57,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 17:40:57,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 17:40:57,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 17:40:57,943 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 17:40:57,944 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 17:40:57,944 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 17:40:57,963 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 17:40:57,964 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 17:40:57,964 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 17:40:57,964 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 17:40:57,967 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 17:40:57,967 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 17:40:57,967 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 17:40:57,967 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 17:40:57,967 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 17:40:57,968 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 17:40:57,968 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 17:40:57,968 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 17:40:57,968 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:40:57,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 17:40:57,968 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 17:40:57,969 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 17:40:57,971 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 17:40:57,972 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 17:40:58,014 INFO ]: Repository-Root is: /tmp [2018-06-26 17:40:58,033 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 17:40:58,040 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 17:40:58,041 INFO ]: Initializing SmtParser... [2018-06-26 17:40:58,042 INFO ]: SmtParser initialized [2018-06-26 17:40:58,042 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/HOLA/13.c.smt2 [2018-06-26 17:40:58,044 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 [2018-06-26 17:40:58,140 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/13.c.smt2 unknown [2018-06-26 17:40:58,573 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/HOLA/13.c.smt2 [2018-06-26 17:40:58,578 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 17:40:58,587 INFO ]: Walking toolchain with 5 elements. [2018-06-26 17:40:58,587 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 17:40:58,587 INFO ]: Initializing ChcToBoogie... [2018-06-26 17:40:58,587 INFO ]: ChcToBoogie initialized [2018-06-26 17:40:58,590 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,663 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58 Unit [2018-06-26 17:40:58,663 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 17:40:58,664 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 17:40:58,664 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 17:40:58,664 INFO ]: Boogie Preprocessor initialized [2018-06-26 17:40:58,712 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,712 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,728 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,728 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,733 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,736 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,737 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (1/1) ... [2018-06-26 17:40:58,741 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 17:40:58,741 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 17:40:58,741 INFO ]: Initializing RCFGBuilder... [2018-06-26 17:40:58,741 INFO ]: RCFGBuilder initialized [2018-06-26 17:40:58,742 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (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) [2018-06-26 17:40:58,771 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 17:40:58,771 INFO ]: Found specification of procedure gotoProc [2018-06-26 17:40:58,771 INFO ]: Found implementation of procedure gotoProc [2018-06-26 17:40:58,771 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 17:40:58,771 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 17:40:58,772 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:40:59,487 INFO ]: Using library mode [2018-06-26 17:40:59,488 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:40:59 BoogieIcfgContainer [2018-06-26 17:40:59,488 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 17:40:59,489 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 17:40:59,489 INFO ]: Initializing BlockEncodingV2... [2018-06-26 17:40:59,490 INFO ]: BlockEncodingV2 initialized [2018-06-26 17:40:59,490 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:40:59" (1/1) ... [2018-06-26 17:40:59,509 INFO ]: Initial Icfg 34 locations, 39 edges [2018-06-26 17:40:59,510 INFO ]: Using Remove infeasible edges [2018-06-26 17:40:59,511 INFO ]: Using Maximize final states [2018-06-26 17:40:59,511 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 17:40:59,513 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 17:40:59,515 INFO ]: Using Remove sink states [2018-06-26 17:40:59,519 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 17:40:59,519 INFO ]: Using Use SBE [2018-06-26 17:40:59,532 INFO ]: SBE split 0 edges [2018-06-26 17:40:59,539 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-26 17:40:59,541 INFO ]: 0 new accepting states [2018-06-26 17:41:00,824 INFO ]: Removed 83 edges and 25 locations by large block encoding [2018-06-26 17:41:00,826 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:41:00,830 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 17:41:00,830 INFO ]: 0 new accepting states [2018-06-26 17:41:00,830 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 17:41:00,830 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:41:00,831 INFO ]: Encoded RCFG 7 locations, 13 edges [2018-06-26 17:41:00,831 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:41:00 BasicIcfg [2018-06-26 17:41:00,832 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 17:41:00,833 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 17:41:00,833 INFO ]: Initializing TraceAbstraction... [2018-06-26 17:41:00,840 INFO ]: TraceAbstraction initialized [2018-06-26 17:41:00,840 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:40:58" (1/4) ... [2018-06-26 17:41:00,841 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e93923e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 05:41:00, skipping insertion in model container [2018-06-26 17:41:00,841 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:40:58" (2/4) ... [2018-06-26 17:41:00,841 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e93923e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 05:41:00, skipping insertion in model container [2018-06-26 17:41:00,841 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:40:59" (3/4) ... [2018-06-26 17:41:00,842 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e93923e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:41:00, skipping insertion in model container [2018-06-26 17:41:00,843 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:41:00" (4/4) ... [2018-06-26 17:41:00,845 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 17:41:00,858 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 17:41:00,876 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 17:41:00,927 INFO ]: Using default assertion order modulation [2018-06-26 17:41:00,928 INFO ]: Interprodecural is true [2018-06-26 17:41:00,928 INFO ]: Hoare is false [2018-06-26 17:41:00,928 INFO ]: Compute interpolants for FPandBP [2018-06-26 17:41:00,928 INFO ]: Backedges is TWOTRACK [2018-06-26 17:41:00,928 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 17:41:00,928 INFO ]: Difference is false [2018-06-26 17:41:00,928 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 17:41:00,928 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 17:41:00,942 INFO ]: Start isEmpty. Operand 7 states. [2018-06-26 17:41:00,961 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:41:00,961 INFO ]: Found error trace [2018-06-26 17:41:00,962 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:41:00,962 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:41:00,969 INFO ]: Analyzing trace with hash 36677776, now seen corresponding path program 1 times [2018-06-26 17:41:00,971 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:41:00,971 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:41:01,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:41:01,020 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:41:01,020 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:41:01,139 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:41:01,332 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:41:01,335 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:41:01,335 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:41:01,337 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:41:01,347 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:41:01,348 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:41:01,350 INFO ]: Start difference. First operand 7 states. Second operand 3 states. [2018-06-26 17:41:01,477 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:41:01,478 INFO ]: Finished difference Result 9 states and 18 transitions. [2018-06-26 17:41:01,478 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:41:01,479 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:41:01,480 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:41:01,488 INFO ]: With dead ends: 9 [2018-06-26 17:41:01,488 INFO ]: Without dead ends: 9 [2018-06-26 17:41:01,490 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:41:01,507 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-26 17:41:01,524 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-06-26 17:41:01,525 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-26 17:41:01,526 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 16 transitions. [2018-06-26 17:41:01,527 INFO ]: Start accepts. Automaton has 8 states and 16 transitions. Word has length 5 [2018-06-26 17:41:01,528 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:41:01,528 INFO ]: Abstraction has 8 states and 16 transitions. [2018-06-26 17:41:01,528 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:41:01,528 INFO ]: Start isEmpty. Operand 8 states and 16 transitions. [2018-06-26 17:41:01,528 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-26 17:41:01,528 INFO ]: Found error trace [2018-06-26 17:41:01,528 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:41:01,529 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:41:01,529 INFO ]: Analyzing trace with hash 883436761, now seen corresponding path program 1 times [2018-06-26 17:41:01,529 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:41:01,529 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:41:01,530 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:41:01,530 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:41:01,530 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:41:01,560 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:41:01,677 INFO ]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:41:01,677 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:41:01,677 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-26 17:41:01,679 INFO ]: Interpolant automaton has 4 states [2018-06-26 17:41:01,679 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-26 17:41:01,679 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-26 17:41:01,679 INFO ]: Start difference. First operand 8 states and 16 transitions. Second operand 4 states. [2018-06-26 17:41:01,754 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:41:01,754 INFO ]: Finished difference Result 4 states and 8 transitions. [2018-06-26 17:41:01,755 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-26 17:41:01,755 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-26 17:41:01,755 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:41:01,755 INFO ]: With dead ends: 4 [2018-06-26 17:41:01,755 INFO ]: Without dead ends: 0 [2018-06-26 17:41:01,756 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-26 17:41:01,756 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-26 17:41:01,756 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-26 17:41:01,756 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-26 17:41:01,756 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-26 17:41:01,756 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-06-26 17:41:01,756 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:41:01,756 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-26 17:41:01,756 INFO ]: Interpolant automaton has 4 states. [2018-06-26 17:41:01,756 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-26 17:41:01,756 INFO ]: Finished isEmpty. No accepting run. [2018-06-26 17:41:01,759 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 17:41:01,760 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:41:01 BasicIcfg [2018-06-26 17:41:01,761 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 17:41:01,761 INFO ]: Toolchain (without parser) took 3183.19 ms. Allocated memory was 303.0 MB in the beginning and 322.4 MB in the end (delta: 19.4 MB). Free memory was 241.5 MB in the beginning and 188.5 MB in the end (delta: 52.9 MB). Peak memory consumption was 72.3 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,763 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:41:01,764 INFO ]: ChcToBoogie took 76.70 ms. Allocated memory is still 303.0 MB. Free memory was 241.5 MB in the beginning and 239.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,764 INFO ]: Boogie Preprocessor took 76.63 ms. Allocated memory is still 303.0 MB. Free memory was 239.5 MB in the beginning and 237.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,764 INFO ]: RCFGBuilder took 746.90 ms. Allocated memory is still 303.0 MB. Free memory was 237.5 MB in the beginning and 205.5 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,765 INFO ]: BlockEncodingV2 took 1342.99 ms. Allocated memory was 303.0 MB in the beginning and 322.4 MB in the end (delta: 19.4 MB). Free memory was 205.5 MB in the beginning and 218.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,765 INFO ]: TraceAbstraction took 927.87 ms. Allocated memory is still 322.4 MB. Free memory was 218.0 MB in the beginning and 188.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 3.6 GB. [2018-06-26 17:41:01,769 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 34 locations, 39 edges - StatisticsResult: Encoded RCFG 7 locations, 13 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 303.0 MB. Free memory is still 267.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 76.70 ms. Allocated memory is still 303.0 MB. Free memory was 241.5 MB in the beginning and 239.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 76.63 ms. Allocated memory is still 303.0 MB. Free memory was 239.5 MB in the beginning and 237.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 746.90 ms. Allocated memory is still 303.0 MB. Free memory was 237.5 MB in the beginning and 205.5 MB in the end (delta: 32.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 1342.99 ms. Allocated memory was 303.0 MB in the beginning and 322.4 MB in the end (delta: 19.4 MB). Free memory was 205.5 MB in the beginning and 218.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 3.6 GB. * TraceAbstraction took 927.87 ms. Allocated memory is still 322.4 MB. Free memory was 218.0 MB in the beginning and 188.5 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 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 2 procedures, 7 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15 SDtfs, 6 SDslu, 9 SDs, 0 SdLazy, 12 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 88 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 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/13.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_17-41-01-780.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/13.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_17-41-01-780.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/13.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_17-41-01-780.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/13.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_17-41-01-780.csv Received shutdown request...