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/Consistency/fortune-full-nonrobust.22.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:25:22,045 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:25:22,047 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:25:22,063 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:25:22,063 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:25:22,064 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:25:22,071 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:25:22,073 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:25:22,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:25:22,075 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:25:22,077 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:25:22,078 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:25:22,078 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:25:22,080 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:25:22,080 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:25:22,084 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:25:22,085 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:25:22,097 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:25:22,099 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:25:22,100 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:25:22,101 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:25:22,104 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:25:22,104 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:25:22,104 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:25:22,105 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:25:22,106 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:25:22,107 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:25:22,107 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:25:22,108 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:25:22,109 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:25:22,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:25:22,110 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:25:22,110 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:25:22,111 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:25:22,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:25:22,112 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:25:22,126 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:25:22,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:25:22,126 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:25:22,127 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:25:22,128 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:25:22,128 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:25:22,128 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:25:22,128 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:25:22,128 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:25:22,129 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:25:22,129 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:25:22,129 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:25:22,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:25:22,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:25:22,129 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:25:22,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:25:22,132 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:25:22,133 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:25:22,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:25:22,133 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:25:22,133 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:25:22,135 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:25:22,135 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:25:22,177 INFO ]: Repository-Root is: /tmp [2018-06-24 20:25:22,195 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:25:22,199 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:25:22,200 INFO ]: Initializing SmtParser... [2018-06-24 20:25:22,201 INFO ]: SmtParser initialized [2018-06-24 20:25:22,201 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.22.smt2 [2018-06-24 20:25:22,202 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 [2018-06-24 20:25:22,278 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.22.smt2 unknown [2018-06-24 20:25:22,979 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.22.smt2 [2018-06-24 20:25:22,986 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:25:22,992 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:25:22,992 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:25:22,992 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:25:22,992 INFO ]: ChcToBoogie initialized [2018-06-24 20:25:22,996 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:25:22" (1/1) ... [2018-06-24 20:25:23,165 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23 Unit [2018-06-24 20:25:23,165 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:25:23,166 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:25:23,166 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:25:23,166 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:25:23,187 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,187 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,208 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,208 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,256 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,262 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,267 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (1/1) ... [2018-06-24 20:25:23,274 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:25:23,275 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:25:23,275 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:25:23,275 INFO ]: RCFGBuilder initialized [2018-06-24 20:25:23,276 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (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) [2018-06-24 20:25:23,285 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:25:23,285 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:25:23,285 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:25:23,285 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:25:23,285 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:25:23,285 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 [2018-06-24 20:25:25,313 INFO ]: Using library mode [2018-06-24 20:25:25,314 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:25:25 BoogieIcfgContainer [2018-06-24 20:25:25,314 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:25:25,315 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:25:25,315 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:25:25,315 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:25:25,317 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:25:25" (1/1) ... [2018-06-24 20:25:25,364 INFO ]: Initial Icfg 147 locations, 284 edges [2018-06-24 20:25:25,366 INFO ]: Using Remove infeasible edges [2018-06-24 20:25:25,366 INFO ]: Using Maximize final states [2018-06-24 20:25:25,367 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:25:25,367 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:25:25,370 INFO ]: Using Remove sink states [2018-06-24 20:25:25,371 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:25:25,371 INFO ]: Using Use SBE [2018-06-24 20:25:25,388 INFO ]: SBE split 0 edges [2018-06-24 20:25:25,398 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 20:25:25,400 INFO ]: 0 new accepting states [2018-06-24 20:25:26,293 INFO ]: Removed 57 edges and 9 locations by large block encoding [2018-06-24 20:25:26,299 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 20:25:26,320 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:25:26,321 INFO ]: 0 new accepting states [2018-06-24 20:25:26,323 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:25:26,328 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:25:26,331 INFO ]: Encoded RCFG 135 locations, 271 edges [2018-06-24 20:25:26,333 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:25:26 BasicIcfg [2018-06-24 20:25:26,333 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:25:26,334 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:25:26,334 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:25:26,339 INFO ]: TraceAbstraction initialized [2018-06-24 20:25:26,339 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:25:22" (1/4) ... [2018-06-24 20:25:26,340 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499100da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:25:26, skipping insertion in model container [2018-06-24 20:25:26,340 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:25:23" (2/4) ... [2018-06-24 20:25:26,340 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499100da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:25:26, skipping insertion in model container [2018-06-24 20:25:26,340 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:25:25" (3/4) ... [2018-06-24 20:25:26,340 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499100da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:25:26, skipping insertion in model container [2018-06-24 20:25:26,340 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:25:26" (4/4) ... [2018-06-24 20:25:26,342 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:25:26,352 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:25:26,360 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:25:26,410 INFO ]: Using default assertion order modulation [2018-06-24 20:25:26,411 INFO ]: Interprodecural is true [2018-06-24 20:25:26,411 INFO ]: Hoare is false [2018-06-24 20:25:26,411 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:25:26,411 INFO ]: Backedges is TWOTRACK [2018-06-24 20:25:26,411 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:25:26,411 INFO ]: Difference is false [2018-06-24 20:25:26,411 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:25:26,411 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:25:26,435 INFO ]: Start isEmpty. Operand 135 states. [2018-06-24 20:25:26,500 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:25:26,500 INFO ]: Found error trace [2018-06-24 20:25:26,501 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:25:26,501 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:25:26,507 INFO ]: Analyzing trace with hash 5727069, now seen corresponding path program 1 times [2018-06-24 20:25:26,509 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:25:26,510 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:25:26,556 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:26,556 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:25:26,556 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:26,701 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:25:26,939 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:25:26,941 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:25:26,941 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:25:26,943 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:25:26,958 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:25:26,959 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:25:26,961 INFO ]: Start difference. First operand 135 states. Second operand 3 states. [2018-06-24 20:25:29,456 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:25:29,457 INFO ]: Finished difference Result 267 states and 536 transitions. [2018-06-24 20:25:29,458 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:25:29,459 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:25:29,459 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:25:29,505 INFO ]: With dead ends: 267 [2018-06-24 20:25:29,505 INFO ]: Without dead ends: 267 [2018-06-24 20:25:29,506 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 [2018-06-24 20:25:29,525 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-24 20:25:29,648 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-06-24 20:25:29,650 INFO ]: Start removeUnreachable. Operand 267 states. [2018-06-24 20:25:29,668 INFO ]: Finished removeUnreachable. Reduced from 267 states to 267 states and 536 transitions. [2018-06-24 20:25:29,669 INFO ]: Start accepts. Automaton has 267 states and 536 transitions. Word has length 4 [2018-06-24 20:25:29,670 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:25:29,670 INFO ]: Abstraction has 267 states and 536 transitions. [2018-06-24 20:25:29,670 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:25:29,670 INFO ]: Start isEmpty. Operand 267 states and 536 transitions. [2018-06-24 20:25:29,679 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:25:29,680 INFO ]: Found error trace [2018-06-24 20:25:29,680 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:25:29,680 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:25:29,680 INFO ]: Analyzing trace with hash 5730913, now seen corresponding path program 1 times [2018-06-24 20:25:29,680 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:25:29,680 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:25:29,681 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:29,681 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:25:29,681 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:29,706 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:25:29,807 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:25:29,807 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:25:29,807 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:25:29,809 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:25:29,809 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:25:29,809 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:25:29,809 INFO ]: Start difference. First operand 267 states and 536 transitions. Second operand 3 states. [2018-06-24 20:25:31,035 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:25:31,035 INFO ]: Finished difference Result 269 states and 732 transitions. [2018-06-24 20:25:31,035 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:25:31,035 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:25:31,035 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:25:31,085 INFO ]: With dead ends: 269 [2018-06-24 20:25:31,085 INFO ]: Without dead ends: 269 [2018-06-24 20:25:31,086 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 [2018-06-24 20:25:31,086 INFO ]: Start minimizeSevpa. Operand 269 states. [2018-06-24 20:25:31,202 INFO ]: Finished minimizeSevpa. Reduced states from 269 to 268. [2018-06-24 20:25:31,203 INFO ]: Start removeUnreachable. Operand 268 states. [2018-06-24 20:25:31,213 INFO ]: Finished removeUnreachable. Reduced from 268 states to 268 states and 730 transitions. [2018-06-24 20:25:31,213 INFO ]: Start accepts. Automaton has 268 states and 730 transitions. Word has length 4 [2018-06-24 20:25:31,213 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:25:31,213 INFO ]: Abstraction has 268 states and 730 transitions. [2018-06-24 20:25:31,213 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:25:31,214 INFO ]: Start isEmpty. Operand 268 states and 730 transitions. [2018-06-24 20:25:31,220 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:25:31,220 INFO ]: Found error trace [2018-06-24 20:25:31,220 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:25:31,220 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:25:31,220 INFO ]: Analyzing trace with hash 176966698, now seen corresponding path program 1 times [2018-06-24 20:25:31,220 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:25:31,221 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:25:31,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:31,221 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:25:31,221 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:31,237 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:25:31,344 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:25:31,345 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:25:31,411 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:25:31,412 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:25:31,412 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:25:31,412 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:25:31,412 INFO ]: Start difference. First operand 268 states and 730 transitions. Second operand 3 states. [2018-06-24 20:25:32,705 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:25:32,705 INFO ]: Finished difference Result 400 states and 1021 transitions. [2018-06-24 20:25:32,705 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:25:32,705 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:25:32,706 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:25:32,736 INFO ]: With dead ends: 400 [2018-06-24 20:25:32,736 INFO ]: Without dead ends: 400 [2018-06-24 20:25:32,736 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 [2018-06-24 20:25:32,737 INFO ]: Start minimizeSevpa. Operand 400 states. [2018-06-24 20:25:32,828 INFO ]: Finished minimizeSevpa. Reduced states from 400 to 400. [2018-06-24 20:25:32,828 INFO ]: Start removeUnreachable. Operand 400 states. [2018-06-24 20:25:32,846 INFO ]: Finished removeUnreachable. Reduced from 400 states to 400 states and 1021 transitions. [2018-06-24 20:25:32,846 INFO ]: Start accepts. Automaton has 400 states and 1021 transitions. Word has length 5 [2018-06-24 20:25:32,846 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:25:32,846 INFO ]: Abstraction has 400 states and 1021 transitions. [2018-06-24 20:25:32,846 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:25:32,846 INFO ]: Start isEmpty. Operand 400 states and 1021 transitions. [2018-06-24 20:25:32,857 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:25:32,857 INFO ]: Found error trace [2018-06-24 20:25:32,857 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:25:32,857 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:25:32,857 INFO ]: Analyzing trace with hash 177146405, now seen corresponding path program 1 times [2018-06-24 20:25:32,857 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:25:32,857 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:25:32,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:32,858 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:25:32,858 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:32,868 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:25:32,940 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:25:32,940 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:25:32,940 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:25:32,940 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:25:32,940 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:25:32,940 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:25:32,941 INFO ]: Start difference. First operand 400 states and 1021 transitions. Second operand 3 states. [2018-06-24 20:25:33,975 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:25:33,975 INFO ]: Finished difference Result 532 states and 1073 transitions. [2018-06-24 20:25:33,976 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:25:33,976 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:25:33,976 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:25:34,002 INFO ]: With dead ends: 532 [2018-06-24 20:25:34,002 INFO ]: Without dead ends: 532 [2018-06-24 20:25:34,002 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 [2018-06-24 20:25:34,003 INFO ]: Start minimizeSevpa. Operand 532 states. [2018-06-24 20:25:34,083 INFO ]: Finished minimizeSevpa. Reduced states from 532 to 532. [2018-06-24 20:25:34,083 INFO ]: Start removeUnreachable. Operand 532 states. [2018-06-24 20:25:34,099 INFO ]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1073 transitions. [2018-06-24 20:25:34,099 INFO ]: Start accepts. Automaton has 532 states and 1073 transitions. Word has length 5 [2018-06-24 20:25:34,099 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:25:34,099 INFO ]: Abstraction has 532 states and 1073 transitions. [2018-06-24 20:25:34,099 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:25:34,099 INFO ]: Start isEmpty. Operand 532 states and 1073 transitions. [2018-06-24 20:25:34,129 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:25:34,129 INFO ]: Found error trace [2018-06-24 20:25:34,129 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:25:34,129 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:25:34,129 INFO ]: Analyzing trace with hash -1893058251, now seen corresponding path program 1 times [2018-06-24 20:25:34,129 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:25:34,129 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:25:34,130 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:34,130 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:25:34,130 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:25:34,193 INFO ]: Conjunction of SSA is sat [2018-06-24 20:25:34,208 INFO ]: Counterexample might be feasible [2018-06-24 20:25:34,221 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:25:34,223 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:25:34 BasicIcfg [2018-06-24 20:25:34,223 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:25:34,223 INFO ]: Toolchain (without parser) took 11236.87 ms. Allocated memory was 303.0 MB in the beginning and 447.2 MB in the end (delta: 144.2 MB). Free memory was 225.3 MB in the beginning and 314.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 55.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,225 INFO ]: SmtParser took 0.05 ms. Allocated memory is still 303.0 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:25:34,225 INFO ]: ChcToBoogie took 172.98 ms. Allocated memory is still 303.0 MB. Free memory was 224.3 MB in the beginning and 219.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,226 INFO ]: Boogie Preprocessor took 108.59 ms. Allocated memory is still 303.0 MB. Free memory was 219.3 MB in the beginning and 217.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,226 INFO ]: RCFGBuilder took 2039.43 ms. Allocated memory was 303.0 MB in the beginning and 321.4 MB in the end (delta: 18.4 MB). Free memory was 217.3 MB in the beginning and 225.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 41.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,227 INFO ]: BlockEncodingV2 took 1018.13 ms. Allocated memory was 321.4 MB in the beginning and 356.5 MB in the end (delta: 35.1 MB). Free memory was 225.1 MB in the beginning and 303.2 MB in the end (delta: -78.1 MB). Peak memory consumption was 57.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,227 INFO ]: TraceAbstraction took 7889.01 ms. Allocated memory was 356.5 MB in the beginning and 447.2 MB in the end (delta: 90.7 MB). Free memory was 303.2 MB in the beginning and 314.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 79.6 MB. Max. memory is 3.6 GB. [2018-06-24 20:25:34,231 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 147 locations, 284 edges - StatisticsResult: Encoded RCFG 135 locations, 271 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.05 ms. Allocated memory is still 303.0 MB. Free memory is still 268.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 172.98 ms. Allocated memory is still 303.0 MB. Free memory was 224.3 MB in the beginning and 219.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 108.59 ms. Allocated memory is still 303.0 MB. Free memory was 219.3 MB in the beginning and 217.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2039.43 ms. Allocated memory was 303.0 MB in the beginning and 321.4 MB in the end (delta: 18.4 MB). Free memory was 217.3 MB in the beginning and 225.1 MB in the end (delta: -7.8 MB). Peak memory consumption was 41.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 1018.13 ms. Allocated memory was 321.4 MB in the beginning and 356.5 MB in the end (delta: 35.1 MB). Free memory was 225.1 MB in the beginning and 303.2 MB in the end (delta: -78.1 MB). Peak memory consumption was 57.6 MB. Max. memory is 3.6 GB. * TraceAbstraction took 7889.01 ms. Allocated memory was 356.5 MB in the beginning and 447.2 MB in the end (delta: 90.7 MB). Free memory was 303.2 MB in the beginning and 314.3 MB in the end (delta: -11.1 MB). Peak memory consumption was 79.6 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume true; [L0] CALL call gotoProc(5, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int); [L0] RET call gotoProc(5, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int); [L0] hhv_step_lturn_0_Int, hhv_step_lturn_1_Int, hhv_step_lturn_2_Int, hhv_step_lturn_3_Int, hhv_step_lturn_4_Int, hhv_step_lturn_5_Int, hhv_step_lturn_6_Int, hhv_step_lturn_7_Int, hhv_step_lturn_8_Int, hhv_step_lturn_9_Int, hhv_step_lturn_10_Int, hhv_step_lturn_11_Int, hhv_step_lturn_12_Int, hhv_step_lturn_13_Int := hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int, hbv_False_14_Int; [L0] havoc hbv_False_8_Int, hbv_False_9_Int, hbv_False_14_Int, hbv_False_11_Int, hbv_False_4_Int, hbv_False_6_Int, hbv_False_3_Int, hbv_False_12_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_13_Int, hbv_False_1_Int, hbv_False_7_Int, hbv_False_10_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 135 locations, 1 error locations. UNSAFE Result, 7.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1314 SDtfs, 202 SDslu, 409 SDs, 0 SdLazy, 1087 SolverSat, 560 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.22.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-25-34-241.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.22.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-25-34-241.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.22.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-25-34-241.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.22.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-25-34-241.csv Received shutdown request...