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.20.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 17:25:59,124 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 17:25:59,129 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 17:25:59,143 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 17:25:59,143 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 17:25:59,144 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 17:25:59,145 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 17:25:59,150 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 17:25:59,152 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 17:25:59,153 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 17:25:59,153 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 17:25:59,155 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 17:25:59,156 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 17:25:59,156 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 17:25:59,157 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 17:25:59,158 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 17:25:59,159 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 17:25:59,162 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 17:25:59,164 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 17:25:59,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 17:25:59,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 17:25:59,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 17:25:59,177 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 17:25:59,177 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 17:25:59,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 17:25:59,178 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 17:25:59,179 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 17:25:59,180 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 17:25:59,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 17:25:59,181 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 17:25:59,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 17:25:59,182 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 17:25:59,182 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 17:25:59,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 17:25:59,183 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 17:25:59,184 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 17:25:59,184 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 17:25:59,202 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 17:25:59,202 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 17:25:59,203 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 17:25:59,203 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 17:25:59,204 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 17:25:59,204 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 17:25:59,204 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 17:25:59,204 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 17:25:59,204 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 17:25:59,205 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 17:25:59,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 17:25:59,208 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 17:25:59,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:25:59,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 17:25:59,209 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 17:25:59,209 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 17:25:59,209 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 17:25:59,209 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 17:25:59,209 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 17:25:59,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 17:25:59,210 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 17:25:59,211 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 17:25:59,211 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 17:25:59,249 INFO ]: Repository-Root is: /tmp [2018-06-26 17:25:59,260 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 17:25:59,264 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 17:25:59,265 INFO ]: Initializing SmtParser... [2018-06-26 17:25:59,266 INFO ]: SmtParser initialized [2018-06-26 17:25:59,266 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.20.smt2 [2018-06-26 17:25:59,267 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 17:25:59,353 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.20.smt2 unknown [2018-06-26 17:25:59,952 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full-nonrobust.20.smt2 [2018-06-26 17:25:59,958 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 17:25:59,964 INFO ]: Walking toolchain with 5 elements. [2018-06-26 17:25:59,964 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 17:25:59,964 INFO ]: Initializing ChcToBoogie... [2018-06-26 17:25:59,964 INFO ]: ChcToBoogie initialized [2018-06-26 17:25:59,968 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:25:59" (1/1) ... [2018-06-26 17:26:00,076 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00 Unit [2018-06-26 17:26:00,077 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 17:26:00,077 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 17:26:00,077 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 17:26:00,077 INFO ]: Boogie Preprocessor initialized [2018-06-26 17:26:00,092 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,092 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,107 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,107 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,136 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,142 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,146 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... [2018-06-26 17:26:00,159 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 17:26:00,160 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 17:26:00,160 INFO ]: Initializing RCFGBuilder... [2018-06-26 17:26:00,160 INFO ]: RCFGBuilder initialized [2018-06-26 17:26:00,160 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 17:26:00,175 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 17:26:00,175 INFO ]: Found specification of procedure gotoProc [2018-06-26 17:26:00,175 INFO ]: Found implementation of procedure gotoProc [2018-06-26 17:26:00,175 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 17:26:00,175 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 17:26:00,175 INFO ]: Found implementation of procedure Ultimate.START [2018-06-26 17:26:02,062 INFO ]: Using library mode [2018-06-26 17:26:02,063 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:26:02 BoogieIcfgContainer [2018-06-26 17:26:02,063 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 17:26:02,063 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 17:26:02,063 INFO ]: Initializing BlockEncodingV2... [2018-06-26 17:26:02,066 INFO ]: BlockEncodingV2 initialized [2018-06-26 17:26:02,067 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:26:02" (1/1) ... [2018-06-26 17:26:02,113 INFO ]: Initial Icfg 147 locations, 284 edges [2018-06-26 17:26:02,115 INFO ]: Using Remove infeasible edges [2018-06-26 17:26:02,115 INFO ]: Using Maximize final states [2018-06-26 17:26:02,116 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 17:26:02,116 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 17:26:02,118 INFO ]: Using Remove sink states [2018-06-26 17:26:02,118 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 17:26:02,118 INFO ]: Using Use SBE [2018-06-26 17:26:02,131 INFO ]: SBE split 0 edges [2018-06-26 17:26:02,139 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-26 17:26:02,144 INFO ]: 0 new accepting states [2018-06-26 17:26:02,893 INFO ]: Removed 57 edges and 9 locations by large block encoding [2018-06-26 17:26:02,897 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-26 17:26:02,900 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 17:26:02,900 INFO ]: 0 new accepting states [2018-06-26 17:26:02,903 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 17:26:02,903 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 17:26:02,905 INFO ]: Encoded RCFG 135 locations, 271 edges [2018-06-26 17:26:02,906 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:26:02 BasicIcfg [2018-06-26 17:26:02,906 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 17:26:02,907 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 17:26:02,907 INFO ]: Initializing TraceAbstraction... [2018-06-26 17:26:02,910 INFO ]: TraceAbstraction initialized [2018-06-26 17:26:02,910 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 05:25:59" (1/4) ... [2018-06-26 17:26:02,913 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 05:26:02, skipping insertion in model container [2018-06-26 17:26:02,913 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 05:26:00" (2/4) ... [2018-06-26 17:26:02,913 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 05:26:02, skipping insertion in model container [2018-06-26 17:26:02,913 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 05:26:02" (3/4) ... [2018-06-26 17:26:02,913 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1299142b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:26:02, skipping insertion in model container [2018-06-26 17:26:02,913 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 05:26:02" (4/4) ... [2018-06-26 17:26:02,918 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 17:26:02,928 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 17:26:02,945 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 17:26:02,986 INFO ]: Using default assertion order modulation [2018-06-26 17:26:02,986 INFO ]: Interprodecural is true [2018-06-26 17:26:02,986 INFO ]: Hoare is false [2018-06-26 17:26:02,986 INFO ]: Compute interpolants for FPandBP [2018-06-26 17:26:02,986 INFO ]: Backedges is TWOTRACK [2018-06-26 17:26:02,986 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 17:26:02,986 INFO ]: Difference is false [2018-06-26 17:26:02,987 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 17:26:02,987 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 17:26:03,011 INFO ]: Start isEmpty. Operand 135 states. [2018-06-26 17:26:03,047 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-26 17:26:03,047 INFO ]: Found error trace [2018-06-26 17:26:03,048 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-26 17:26:03,048 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:26:03,079 INFO ]: Analyzing trace with hash 5728030, now seen corresponding path program 1 times [2018-06-26 17:26:03,081 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:26:03,081 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:26:03,117 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:03,117 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:26:03,117 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:03,214 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:26:03,418 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:26:03,420 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:26:03,420 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:26:03,421 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:26:03,431 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:26:03,432 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:26:03,433 INFO ]: Start difference. First operand 135 states. Second operand 3 states. [2018-06-26 17:26:05,583 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:26:05,583 INFO ]: Finished difference Result 267 states and 536 transitions. [2018-06-26 17:26:05,584 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:26:05,585 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-26 17:26:05,586 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:26:05,624 INFO ]: With dead ends: 267 [2018-06-26 17:26:05,624 INFO ]: Without dead ends: 267 [2018-06-26 17:26:05,626 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 17:26:05,644 INFO ]: Start minimizeSevpa. Operand 267 states. [2018-06-26 17:26:05,776 INFO ]: Finished minimizeSevpa. Reduced states from 267 to 267. [2018-06-26 17:26:05,777 INFO ]: Start removeUnreachable. Operand 267 states. [2018-06-26 17:26:05,796 INFO ]: Finished removeUnreachable. Reduced from 267 states to 267 states and 536 transitions. [2018-06-26 17:26:05,799 INFO ]: Start accepts. Automaton has 267 states and 536 transitions. Word has length 4 [2018-06-26 17:26:05,800 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:26:05,800 INFO ]: Abstraction has 267 states and 536 transitions. [2018-06-26 17:26:05,800 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:26:05,800 INFO ]: Start isEmpty. Operand 267 states and 536 transitions. [2018-06-26 17:26:05,810 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-26 17:26:05,811 INFO ]: Found error trace [2018-06-26 17:26:05,811 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-26 17:26:05,811 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:26:05,811 INFO ]: Analyzing trace with hash 5730913, now seen corresponding path program 1 times [2018-06-26 17:26:05,811 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:26:05,811 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:26:05,812 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:05,812 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:26:05,812 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:05,835 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:26:05,936 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:26:05,936 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:26:05,936 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:26:05,938 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:26:05,938 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:26:05,938 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:26:05,938 INFO ]: Start difference. First operand 267 states and 536 transitions. Second operand 3 states. [2018-06-26 17:26:07,018 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:26:07,018 INFO ]: Finished difference Result 269 states and 732 transitions. [2018-06-26 17:26:07,018 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:26:07,018 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-26 17:26:07,018 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:26:07,042 INFO ]: With dead ends: 269 [2018-06-26 17:26:07,042 INFO ]: Without dead ends: 269 [2018-06-26 17:26:07,043 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 17:26:07,043 INFO ]: Start minimizeSevpa. Operand 269 states. [2018-06-26 17:26:07,186 INFO ]: Finished minimizeSevpa. Reduced states from 269 to 268. [2018-06-26 17:26:07,186 INFO ]: Start removeUnreachable. Operand 268 states. [2018-06-26 17:26:07,204 INFO ]: Finished removeUnreachable. Reduced from 268 states to 268 states and 730 transitions. [2018-06-26 17:26:07,204 INFO ]: Start accepts. Automaton has 268 states and 730 transitions. Word has length 4 [2018-06-26 17:26:07,204 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:26:07,204 INFO ]: Abstraction has 268 states and 730 transitions. [2018-06-26 17:26:07,204 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:26:07,205 INFO ]: Start isEmpty. Operand 268 states and 730 transitions. [2018-06-26 17:26:07,214 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 17:26:07,214 INFO ]: Found error trace [2018-06-26 17:26:07,214 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 17:26:07,214 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:26:07,214 INFO ]: Analyzing trace with hash 177027241, now seen corresponding path program 1 times [2018-06-26 17:26:07,214 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:26:07,214 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:26:07,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:07,215 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:26:07,215 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:07,233 INFO ]: Conjunction of SSA is unsat [2018-06-26 17:26:07,392 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 17:26:07,392 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 17:26:07,392 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 17:26:07,392 INFO ]: Interpolant automaton has 3 states [2018-06-26 17:26:07,392 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 17:26:07,392 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 17:26:07,392 INFO ]: Start difference. First operand 268 states and 730 transitions. Second operand 3 states. [2018-06-26 17:26:08,955 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 17:26:08,955 INFO ]: Finished difference Result 400 states and 806 transitions. [2018-06-26 17:26:08,955 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 17:26:08,955 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 17:26:08,956 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 17:26:08,968 INFO ]: With dead ends: 400 [2018-06-26 17:26:08,968 INFO ]: Without dead ends: 400 [2018-06-26 17:26:08,968 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 17:26:08,969 INFO ]: Start minimizeSevpa. Operand 400 states. [2018-06-26 17:26:09,062 INFO ]: Finished minimizeSevpa. Reduced states from 400 to 400. [2018-06-26 17:26:09,063 INFO ]: Start removeUnreachable. Operand 400 states. [2018-06-26 17:26:09,073 INFO ]: Finished removeUnreachable. Reduced from 400 states to 400 states and 806 transitions. [2018-06-26 17:26:09,073 INFO ]: Start accepts. Automaton has 400 states and 806 transitions. Word has length 5 [2018-06-26 17:26:09,073 INFO ]: Finished accepts. word is rejected. [2018-06-26 17:26:09,073 INFO ]: Abstraction has 400 states and 806 transitions. [2018-06-26 17:26:09,073 INFO ]: Interpolant automaton has 3 states. [2018-06-26 17:26:09,073 INFO ]: Start isEmpty. Operand 400 states and 806 transitions. [2018-06-26 17:26:09,096 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-26 17:26:09,097 INFO ]: Found error trace [2018-06-26 17:26:09,097 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-26 17:26:09,097 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 17:26:09,097 INFO ]: Analyzing trace with hash 811843983, now seen corresponding path program 1 times [2018-06-26 17:26:09,097 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 17:26:09,097 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 17:26:09,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:09,098 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 17:26:09,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 17:26:09,170 INFO ]: Conjunction of SSA is sat [2018-06-26 17:26:09,181 INFO ]: Counterexample might be feasible [2018-06-26 17:26:09,194 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 17:26:09,195 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 05:26:09 BasicIcfg [2018-06-26 17:26:09,195 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 17:26:09,196 INFO ]: Toolchain (without parser) took 9238.05 ms. Allocated memory was 305.7 MB in the beginning and 465.6 MB in the end (delta: 159.9 MB). Free memory was 235.0 MB in the beginning and 397.7 MB in the end (delta: -162.7 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:26:09,198 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:26:09,198 INFO ]: ChcToBoogie took 112.74 ms. Allocated memory is still 305.7 MB. Free memory was 234.0 MB in the beginning and 230.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:26:09,198 INFO ]: Boogie Preprocessor took 81.63 ms. Allocated memory is still 305.7 MB. Free memory was 230.0 MB in the beginning and 228.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 17:26:09,199 INFO ]: RCFGBuilder took 1903.46 ms. Allocated memory was 305.7 MB in the beginning and 327.2 MB in the end (delta: 21.5 MB). Free memory was 227.0 MB in the beginning and 248.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 3.6 GB. [2018-06-26 17:26:09,199 INFO ]: BlockEncodingV2 took 842.54 ms. Allocated memory is still 327.2 MB. Free memory was 248.6 MB in the beginning and 177.7 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 3.6 GB. [2018-06-26 17:26:09,200 INFO ]: TraceAbstraction took 6288.03 ms. Allocated memory was 327.2 MB in the beginning and 465.6 MB in the end (delta: 138.4 MB). Free memory was 177.7 MB in the beginning and 397.7 MB in the end (delta: -219.9 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 17:26:09,203 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 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 112.74 ms. Allocated memory is still 305.7 MB. Free memory was 234.0 MB in the beginning and 230.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 81.63 ms. Allocated memory is still 305.7 MB. Free memory was 230.0 MB in the beginning and 228.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1903.46 ms. Allocated memory was 305.7 MB in the beginning and 327.2 MB in the end (delta: 21.5 MB). Free memory was 227.0 MB in the beginning and 248.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 48.4 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 842.54 ms. Allocated memory is still 327.2 MB. Free memory was 248.6 MB in the beginning and 177.7 MB in the end (delta: 70.9 MB). Peak memory consumption was 70.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6288.03 ms. Allocated memory was 327.2 MB in the beginning and 465.6 MB in the end (delta: 138.4 MB). Free memory was 177.7 MB in the beginning and 397.7 MB in the end (delta: -219.9 MB). There was no memory consumed. 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_6_Int, hbv_False_7_Int, hbv_False_3_Int, hbv_False_5_Int, hbv_False_8_Int, hbv_False_13_Int, hbv_False_2_Int, hbv_False_4_Int, hbv_False_9_Int, hbv_False_14_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_10_Int, hbv_False_1_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, 6.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 4.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 934 SDtfs, 135 SDslu, 280 SDs, 0 SdLazy, 850 SolverSat, 341 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=400occurred in iteration=3, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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.20.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_17-26-09-214.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.20.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_17-26-09-214.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.20.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_17-26-09-214.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full-nonrobust.20.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_17-26-09-214.csv Received shutdown request...