java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.5.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 08:19:22,235 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 08:19:22,238 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 08:19:22,252 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 08:19:22,252 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 08:19:22,254 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 08:19:22,255 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 08:19:22,262 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 08:19:22,263 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 08:19:22,264 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 08:19:22,265 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 08:19:22,266 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 08:19:22,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 08:19:22,268 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 08:19:22,269 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 08:19:22,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 08:19:22,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 08:19:22,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 08:19:22,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 08:19:22,284 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 08:19:22,285 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 08:19:22,291 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 08:19:22,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 08:19:22,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 08:19:22,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 08:19:22,293 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 08:19:22,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 08:19:22,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 08:19:22,296 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 08:19:22,296 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 08:19:22,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 08:19:22,297 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 08:19:22,297 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 08:19:22,298 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 08:19:22,299 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 08:19:22,303 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 08:19:22,323 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 08:19:22,324 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 08:19:22,326 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 08:19:22,326 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 08:19:22,327 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 08:19:22,327 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 08:19:22,327 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 08:19:22,328 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 08:19:22,328 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 08:19:22,328 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 08:19:22,328 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 08:19:22,328 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 08:19:22,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 08:19:22,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 08:19:22,330 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 08:19:22,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 08:19:22,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 08:19:22,331 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 08:19:22,331 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 08:19:22,331 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 08:19:22,331 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 08:19:22,333 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 08:19:22,334 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 08:19:22,379 INFO ]: Repository-Root is: /tmp [2018-06-25 08:19:22,396 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 08:19:22,402 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 08:19:22,403 INFO ]: Initializing SmtParser... [2018-06-25 08:19:22,404 INFO ]: SmtParser initialized [2018-06-25 08:19:22,404 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.5.smt2 [2018-06-25 08:19:22,405 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 [2018-06-25 08:19:22,479 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.5.smt2 unknown [2018-06-25 08:19:22,893 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.5.smt2 [2018-06-25 08:19:22,897 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 08:19:22,911 INFO ]: Walking toolchain with 4 elements. [2018-06-25 08:19:22,911 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 08:19:22,911 INFO ]: Initializing ChcToBoogie... [2018-06-25 08:19:22,911 INFO ]: ChcToBoogie initialized [2018-06-25 08:19:22,923 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:19:22" (1/1) ... [2018-06-25 08:19:23,074 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23 Unit [2018-06-25 08:19:23,074 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 08:19:23,075 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 08:19:23,075 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 08:19:23,075 INFO ]: Boogie Preprocessor initialized [2018-06-25 08:19:23,100 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,100 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,119 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,119 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,135 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,140 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,147 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (1/1) ... [2018-06-25 08:19:23,151 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 08:19:23,152 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 08:19:23,152 INFO ]: Initializing RCFGBuilder... [2018-06-25 08:19:23,152 INFO ]: RCFGBuilder initialized [2018-06-25 08:19:23,153 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (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) [2018-06-25 08:19:23,184 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 08:19:23,184 INFO ]: Found specification of procedure gotoProc [2018-06-25 08:19:23,184 INFO ]: Found implementation of procedure gotoProc [2018-06-25 08:19:23,184 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 08:19:23,184 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 08:19:23,184 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 [2018-06-25 08:19:24,721 INFO ]: Using library mode [2018-06-25 08:19:24,721 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:19:24 BoogieIcfgContainer [2018-06-25 08:19:24,722 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 08:19:24,723 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 08:19:24,723 INFO ]: Initializing TraceAbstraction... [2018-06-25 08:19:24,726 INFO ]: TraceAbstraction initialized [2018-06-25 08:19:24,726 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 08:19:22" (1/3) ... [2018-06-25 08:19:24,727 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa99ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 08:19:24, skipping insertion in model container [2018-06-25 08:19:24,727 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 08:19:23" (2/3) ... [2018-06-25 08:19:24,727 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50fa99ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 08:19:24, skipping insertion in model container [2018-06-25 08:19:24,728 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 08:19:24" (3/3) ... [2018-06-25 08:19:24,729 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 08:19:24,738 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 08:19:24,747 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 08:19:24,796 INFO ]: Using default assertion order modulation [2018-06-25 08:19:24,796 INFO ]: Interprodecural is true [2018-06-25 08:19:24,796 INFO ]: Hoare is false [2018-06-25 08:19:24,796 INFO ]: Compute interpolants for FPandBP [2018-06-25 08:19:24,796 INFO ]: Backedges is TWOTRACK [2018-06-25 08:19:24,796 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 08:19:24,796 INFO ]: Difference is false [2018-06-25 08:19:24,796 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 08:19:24,796 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 08:19:24,815 INFO ]: Start isEmpty. Operand 145 states. [2018-06-25 08:19:24,835 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 08:19:24,835 INFO ]: Found error trace [2018-06-25 08:19:24,836 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:19:24,836 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:19:24,841 INFO ]: Analyzing trace with hash 3945281, now seen corresponding path program 1 times [2018-06-25 08:19:24,843 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:19:24,844 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:19:24,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:24,886 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:19:24,886 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:24,936 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:19:25,047 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:19:25,049 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:19:25,049 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:19:25,051 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:19:25,061 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:19:25,062 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:19:25,064 INFO ]: Start difference. First operand 145 states. Second operand 4 states. [2018-06-25 08:19:27,653 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:19:27,653 INFO ]: Finished difference Result 283 states and 559 transitions. [2018-06-25 08:19:27,653 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:19:27,654 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 08:19:27,655 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:19:27,696 INFO ]: With dead ends: 283 [2018-06-25 08:19:27,697 INFO ]: Without dead ends: 277 [2018-06-25 08:19:27,698 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:19:27,718 INFO ]: Start minimizeSevpa. Operand 277 states. [2018-06-25 08:19:27,832 INFO ]: Finished minimizeSevpa. Reduced states from 277 to 277. [2018-06-25 08:19:27,834 INFO ]: Start removeUnreachable. Operand 277 states. [2018-06-25 08:19:27,856 INFO ]: Finished removeUnreachable. Reduced from 277 states to 277 states and 547 transitions. [2018-06-25 08:19:27,858 INFO ]: Start accepts. Automaton has 277 states and 547 transitions. Word has length 8 [2018-06-25 08:19:27,859 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:19:27,859 INFO ]: Abstraction has 277 states and 547 transitions. [2018-06-25 08:19:27,859 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:19:27,859 INFO ]: Start isEmpty. Operand 277 states and 547 transitions. [2018-06-25 08:19:27,863 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 08:19:27,863 INFO ]: Found error trace [2018-06-25 08:19:27,863 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:19:27,863 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:19:27,864 INFO ]: Analyzing trace with hash -134582869, now seen corresponding path program 1 times [2018-06-25 08:19:27,864 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:19:27,864 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:19:27,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:27,865 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:19:27,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:27,872 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:19:28,007 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 08:19:28,007 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:19:28,007 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 08:19:28,009 INFO ]: Interpolant automaton has 4 states [2018-06-25 08:19:28,009 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 08:19:28,009 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 08:19:28,009 INFO ]: Start difference. First operand 277 states and 547 transitions. Second operand 4 states. [2018-06-25 08:19:30,235 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:19:30,235 INFO ]: Finished difference Result 414 states and 819 transitions. [2018-06-25 08:19:30,235 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 08:19:30,235 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 08:19:30,236 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:19:30,262 INFO ]: With dead ends: 414 [2018-06-25 08:19:30,262 INFO ]: Without dead ends: 414 [2018-06-25 08:19:30,264 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 08:19:30,264 INFO ]: Start minimizeSevpa. Operand 414 states. [2018-06-25 08:19:30,379 INFO ]: Finished minimizeSevpa. Reduced states from 414 to 414. [2018-06-25 08:19:30,379 INFO ]: Start removeUnreachable. Operand 414 states. [2018-06-25 08:19:30,429 INFO ]: Finished removeUnreachable. Reduced from 414 states to 414 states and 819 transitions. [2018-06-25 08:19:30,429 INFO ]: Start accepts. Automaton has 414 states and 819 transitions. Word has length 8 [2018-06-25 08:19:30,429 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:19:30,429 INFO ]: Abstraction has 414 states and 819 transitions. [2018-06-25 08:19:30,429 INFO ]: Interpolant automaton has 4 states. [2018-06-25 08:19:30,429 INFO ]: Start isEmpty. Operand 414 states and 819 transitions. [2018-06-25 08:19:30,460 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-25 08:19:30,461 INFO ]: Found error trace [2018-06-25 08:19:30,461 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:19:30,461 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:19:30,461 INFO ]: Analyzing trace with hash -1761738542, now seen corresponding path program 1 times [2018-06-25 08:19:30,461 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:19:30,461 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:19:30,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:30,462 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:19:30,462 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:30,522 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:19:30,846 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-25 08:19:30,846 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:19:30,846 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-25 08:19:30,846 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:19:30,846 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:19:30,846 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:19:30,846 INFO ]: Start difference. First operand 414 states and 819 transitions. Second operand 7 states. [2018-06-25 08:19:44,291 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:19:44,291 INFO ]: Finished difference Result 1688 states and 11233 transitions. [2018-06-25 08:19:44,309 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-25 08:19:44,309 INFO ]: Start accepts. Automaton has 7 states. Word has length 19 [2018-06-25 08:19:44,310 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:19:45,051 INFO ]: With dead ends: 1688 [2018-06-25 08:19:45,052 INFO ]: Without dead ends: 1688 [2018-06-25 08:19:45,052 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2018-06-25 08:19:45,053 INFO ]: Start minimizeSevpa. Operand 1688 states. [2018-06-25 08:19:46,228 INFO ]: Finished minimizeSevpa. Reduced states from 1688 to 867. [2018-06-25 08:19:46,228 INFO ]: Start removeUnreachable. Operand 867 states. [2018-06-25 08:19:46,283 INFO ]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2279 transitions. [2018-06-25 08:19:46,283 INFO ]: Start accepts. Automaton has 867 states and 2279 transitions. Word has length 19 [2018-06-25 08:19:46,283 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:19:46,283 INFO ]: Abstraction has 867 states and 2279 transitions. [2018-06-25 08:19:46,283 INFO ]: Interpolant automaton has 7 states. [2018-06-25 08:19:46,283 INFO ]: Start isEmpty. Operand 867 states and 2279 transitions. [2018-06-25 08:19:46,307 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-25 08:19:46,307 INFO ]: Found error trace [2018-06-25 08:19:46,307 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:19:46,307 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:19:46,307 INFO ]: Analyzing trace with hash 1103296713, now seen corresponding path program 1 times [2018-06-25 08:19:46,307 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:19:46,307 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:19:46,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:46,308 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:19:46,308 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:19:46,346 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:19:46,999 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-25 08:19:46,999 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:19:46,999 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-25 08:19:46,999 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:19:46,999 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:19:46,999 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:19:46,999 INFO ]: Start difference. First operand 867 states and 2279 transitions. Second operand 7 states. [2018-06-25 08:19:47,303 WARN ]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-06-25 08:20:02,807 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 08:20:02,807 INFO ]: Finished difference Result 3573 states and 38871 transitions. [2018-06-25 08:20:02,808 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-25 08:20:02,808 INFO ]: Start accepts. Automaton has 7 states. Word has length 19 [2018-06-25 08:20:02,808 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 08:20:06,439 INFO ]: With dead ends: 3573 [2018-06-25 08:20:06,439 INFO ]: Without dead ends: 3573 [2018-06-25 08:20:06,441 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2018-06-25 08:20:06,443 INFO ]: Start minimizeSevpa. Operand 3573 states. [2018-06-25 08:20:12,172 INFO ]: Finished minimizeSevpa. Reduced states from 3573 to 2052. [2018-06-25 08:20:12,172 INFO ]: Start removeUnreachable. Operand 2052 states. [2018-06-25 08:20:12,516 INFO ]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 7909 transitions. [2018-06-25 08:20:12,516 INFO ]: Start accepts. Automaton has 2052 states and 7909 transitions. Word has length 19 [2018-06-25 08:20:12,517 INFO ]: Finished accepts. word is rejected. [2018-06-25 08:20:12,517 INFO ]: Abstraction has 2052 states and 7909 transitions. [2018-06-25 08:20:12,517 INFO ]: Interpolant automaton has 7 states. [2018-06-25 08:20:12,517 INFO ]: Start isEmpty. Operand 2052 states and 7909 transitions. [2018-06-25 08:20:12,552 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-25 08:20:12,552 INFO ]: Found error trace [2018-06-25 08:20:12,552 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 08:20:12,552 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 08:20:12,553 INFO ]: Analyzing trace with hash -1384216120, now seen corresponding path program 1 times [2018-06-25 08:20:12,553 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 08:20:12,553 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 08:20:12,553 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:20:12,553 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 08:20:12,553 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 08:20:12,592 INFO ]: Conjunction of SSA is unsat [2018-06-25 08:20:12,831 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-25 08:20:12,831 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 08:20:12,831 INFO ]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-06-25 08:20:12,831 INFO ]: Interpolant automaton has 7 states [2018-06-25 08:20:12,832 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 08:20:12,832 INFO ]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-06-25 08:20:12,832 INFO ]: Start difference. First operand 2052 states and 7909 transitions. Second operand 7 states. Received shutdown request... [2018-06-25 08:20:22,439 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-25 08:20:22,439 WARN ]: Verification canceled [2018-06-25 08:20:22,443 WARN ]: Timeout [2018-06-25 08:20:22,443 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 08:20:22 BoogieIcfgContainer [2018-06-25 08:20:22,443 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 08:20:22,444 INFO ]: Toolchain (without parser) took 59546.72 ms. Allocated memory was 306.7 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 251.1 MB in the beginning and 743.2 MB in the end (delta: -492.0 MB). Peak memory consumption was 846.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:20:22,445 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 08:20:22,445 INFO ]: ChcToBoogie took 163.24 ms. Allocated memory is still 306.7 MB. Free memory was 249.2 MB in the beginning and 247.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:20:22,446 INFO ]: Boogie Preprocessor took 76.31 ms. Allocated memory is still 306.7 MB. Free memory was 247.2 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:20:22,446 INFO ]: RCFGBuilder took 1569.86 ms. Allocated memory was 306.7 MB in the beginning and 324.5 MB in the end (delta: 17.8 MB). Free memory was 243.2 MB in the beginning and 288.7 MB in the end (delta: -45.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 3.6 GB. [2018-06-25 08:20:22,447 INFO ]: TraceAbstraction took 57720.67 ms. Allocated memory was 324.5 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 286.4 MB in the beginning and 743.2 MB in the end (delta: -456.7 MB). Peak memory consumption was 863.4 MB. Max. memory is 3.6 GB. [2018-06-25 08:20:22,450 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 271.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 163.24 ms. Allocated memory is still 306.7 MB. Free memory was 249.2 MB in the beginning and 247.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 76.31 ms. Allocated memory is still 306.7 MB. Free memory was 247.2 MB in the beginning and 245.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1569.86 ms. Allocated memory was 306.7 MB in the beginning and 324.5 MB in the end (delta: 17.8 MB). Free memory was 243.2 MB in the beginning and 288.7 MB in the end (delta: -45.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 57720.67 ms. Allocated memory was 324.5 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 286.4 MB in the beginning and 743.2 MB in the end (delta: -456.7 MB). Peak memory consumption was 863.4 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was constructing difference of abstraction (2052states) and interpolant automaton (currently 19 states, 7 states before enhancement), while ReachableStatesComputation was computing reachable states (4446 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 145 locations, 1 error locations. TIMEOUT Result, 57.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 48.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3890 SDtfs, 1186 SDslu, 7417 SDs, 0 SdLazy, 26039 SolverSat, 8109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2052occurred 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: 7.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 2342 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 2722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.5.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_08-20-22-460.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.5.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_08-20-22-460.csv Completed graceful shutdown