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/ch-triangle-location-nr.3.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:18:59,626 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:18:59,628 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:18:59,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:18:59,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:18:59,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:18:59,644 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:18:59,646 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:18:59,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:18:59,648 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:18:59,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:18:59,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:18:59,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:18:59,652 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:18:59,653 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:18:59,654 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:18:59,656 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:18:59,657 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:18:59,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:18:59,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:18:59,661 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:18:59,664 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:18:59,664 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:18:59,664 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:18:59,665 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:18:59,666 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:18:59,667 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:18:59,667 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:18:59,668 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:18:59,669 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:18:59,669 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:18:59,670 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:18:59,670 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:18:59,671 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:18:59,672 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:18:59,672 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:18:59,704 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:18:59,704 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:18:59,704 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:18:59,705 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:18:59,706 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:18:59,706 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:18:59,706 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:18:59,706 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:18:59,707 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:18:59,711 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:18:59,711 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:18:59,712 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:18:59,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:18:59,712 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:18:59,712 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:18:59,712 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:18:59,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:18:59,713 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:18:59,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:18:59,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:18:59,713 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:18:59,715 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:18:59,716 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:18:59,765 INFO ]: Repository-Root is: /tmp [2018-06-24 20:18:59,788 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:18:59,795 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:18:59,797 INFO ]: Initializing SmtParser... [2018-06-24 20:18:59,797 INFO ]: SmtParser initialized [2018-06-24 20:18:59,798 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 [2018-06-24 20:18:59,799 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 20:18:59,893 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 unknown [2018-06-24 20:19:00,332 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.3.smt2 [2018-06-24 20:19:00,336 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:19:00,347 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:19:00,347 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:19:00,347 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:19:00,348 INFO ]: ChcToBoogie initialized [2018-06-24 20:19:00,351 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,460 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00 Unit [2018-06-24 20:19:00,460 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:19:00,462 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:19:00,462 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:19:00,462 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:19:00,480 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,481 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,489 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,489 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,503 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,508 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,511 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (1/1) ... [2018-06-24 20:19:00,514 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:19:00,515 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:19:00,515 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:19:00,515 INFO ]: RCFGBuilder initialized [2018-06-24 20:19:00,516 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (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) [2018-06-24 20:19:00,528 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:19:00,528 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:19:00,528 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:19:00,528 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:19:00,528 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:19:00,528 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 20:19:01,933 INFO ]: Using library mode [2018-06-24 20:19:01,933 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:01 BoogieIcfgContainer [2018-06-24 20:19:01,933 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:19:01,934 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:19:01,934 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:19:01,935 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:19:01,936 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:01" (1/1) ... [2018-06-24 20:19:01,987 INFO ]: Initial Icfg 145 locations, 284 edges [2018-06-24 20:19:01,989 INFO ]: Using Remove infeasible edges [2018-06-24 20:19:01,989 INFO ]: Using Maximize final states [2018-06-24 20:19:01,989 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:19:01,990 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:19:01,994 INFO ]: Using Remove sink states [2018-06-24 20:19:01,995 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:19:01,995 INFO ]: Using Use SBE [2018-06-24 20:19:02,012 INFO ]: SBE split 0 edges [2018-06-24 20:19:02,023 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 20:19:02,026 INFO ]: 0 new accepting states [2018-06-24 20:19:02,633 INFO ]: Removed 54 edges and 8 locations by large block encoding [2018-06-24 20:19:02,636 INFO ]: Removed 5 edges and 2 locations by removing sink states [2018-06-24 20:19:02,639 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:19:02,639 INFO ]: 0 new accepting states [2018-06-24 20:19:02,646 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:19:02,649 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:19:02,651 INFO ]: Encoded RCFG 133 locations, 267 edges [2018-06-24 20:19:02,651 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:02 BasicIcfg [2018-06-24 20:19:02,651 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:19:02,652 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:19:02,652 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:19:02,654 INFO ]: TraceAbstraction initialized [2018-06-24 20:19:02,654 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:19:00" (1/4) ... [2018-06-24 20:19:02,655 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb1f146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:19:02, skipping insertion in model container [2018-06-24 20:19:02,655 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:19:00" (2/4) ... [2018-06-24 20:19:02,655 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb1f146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:19:02, skipping insertion in model container [2018-06-24 20:19:02,655 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:19:01" (3/4) ... [2018-06-24 20:19:02,656 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb1f146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:02, skipping insertion in model container [2018-06-24 20:19:02,656 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:19:02" (4/4) ... [2018-06-24 20:19:02,658 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:19:02,674 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:19:02,694 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:19:02,745 INFO ]: Using default assertion order modulation [2018-06-24 20:19:02,746 INFO ]: Interprodecural is true [2018-06-24 20:19:02,746 INFO ]: Hoare is false [2018-06-24 20:19:02,746 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:19:02,746 INFO ]: Backedges is TWOTRACK [2018-06-24 20:19:02,746 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:19:02,746 INFO ]: Difference is false [2018-06-24 20:19:02,746 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:19:02,746 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:19:02,764 INFO ]: Start isEmpty. Operand 133 states. [2018-06-24 20:19:02,830 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:19:02,830 INFO ]: Found error trace [2018-06-24 20:19:02,831 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:19:02,831 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:02,837 INFO ]: Analyzing trace with hash 178718707, now seen corresponding path program 1 times [2018-06-24 20:19:02,838 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:02,839 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:02,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:02,870 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:02,870 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:02,921 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:03,067 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:19:03,069 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:03,069 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:19:03,071 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:19:03,087 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:19:03,087 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:19:03,091 INFO ]: Start difference. First operand 133 states. Second operand 3 states. [2018-06-24 20:19:04,797 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:04,797 INFO ]: Finished difference Result 263 states and 530 transitions. [2018-06-24 20:19:04,882 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:19:04,883 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:19:04,883 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:04,929 INFO ]: With dead ends: 263 [2018-06-24 20:19:04,929 INFO ]: Without dead ends: 263 [2018-06-24 20:19:04,931 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 20:19:04,950 INFO ]: Start minimizeSevpa. Operand 263 states. [2018-06-24 20:19:05,069 INFO ]: Finished minimizeSevpa. Reduced states from 263 to 263. [2018-06-24 20:19:05,070 INFO ]: Start removeUnreachable. Operand 263 states. [2018-06-24 20:19:05,087 INFO ]: Finished removeUnreachable. Reduced from 263 states to 263 states and 530 transitions. [2018-06-24 20:19:05,089 INFO ]: Start accepts. Automaton has 263 states and 530 transitions. Word has length 5 [2018-06-24 20:19:05,089 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:05,089 INFO ]: Abstraction has 263 states and 530 transitions. [2018-06-24 20:19:05,089 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:19:05,090 INFO ]: Start isEmpty. Operand 263 states and 530 transitions. [2018-06-24 20:19:05,098 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:19:05,098 INFO ]: Found error trace [2018-06-24 20:19:05,098 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:19:05,098 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:05,099 INFO ]: Analyzing trace with hash 178749459, now seen corresponding path program 1 times [2018-06-24 20:19:05,099 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:05,099 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:05,100 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:05,100 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:05,100 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:05,110 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:05,179 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:19:05,179 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:05,180 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:19:05,181 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:19:05,181 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:19:05,181 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:19:05,181 INFO ]: Start difference. First operand 263 states and 530 transitions. Second operand 3 states. [2018-06-24 20:19:06,948 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:06,948 INFO ]: Finished difference Result 393 states and 794 transitions. [2018-06-24 20:19:06,949 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:19:06,949 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:19:06,949 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:06,967 INFO ]: With dead ends: 393 [2018-06-24 20:19:06,967 INFO ]: Without dead ends: 393 [2018-06-24 20:19:06,968 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 [2018-06-24 20:19:06,968 INFO ]: Start minimizeSevpa. Operand 393 states. [2018-06-24 20:19:07,061 INFO ]: Finished minimizeSevpa. Reduced states from 393 to 393. [2018-06-24 20:19:07,061 INFO ]: Start removeUnreachable. Operand 393 states. [2018-06-24 20:19:07,072 INFO ]: Finished removeUnreachable. Reduced from 393 states to 393 states and 794 transitions. [2018-06-24 20:19:07,072 INFO ]: Start accepts. Automaton has 393 states and 794 transitions. Word has length 5 [2018-06-24 20:19:07,072 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:07,072 INFO ]: Abstraction has 393 states and 794 transitions. [2018-06-24 20:19:07,072 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:19:07,072 INFO ]: Start isEmpty. Operand 393 states and 794 transitions. [2018-06-24 20:19:07,097 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:19:07,097 INFO ]: Found error trace [2018-06-24 20:19:07,097 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:07,097 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:07,098 INFO ]: Analyzing trace with hash -1802671811, now seen corresponding path program 1 times [2018-06-24 20:19:07,098 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:07,098 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:07,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:07,098 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:07,098 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:07,137 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:19:07,268 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:19:07,268 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:19:07,268 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:19:07,268 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:19:07,268 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:19:07,268 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:19:07,268 INFO ]: Start difference. First operand 393 states and 794 transitions. Second operand 6 states. [2018-06-24 20:19:13,587 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:19:13,587 INFO ]: Finished difference Result 1056 states and 4173 transitions. [2018-06-24 20:19:13,587 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-24 20:19:13,587 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:19:13,587 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:19:13,813 INFO ]: With dead ends: 1056 [2018-06-24 20:19:13,813 INFO ]: Without dead ends: 915 [2018-06-24 20:19:13,814 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-06-24 20:19:13,814 INFO ]: Start minimizeSevpa. Operand 915 states. [2018-06-24 20:19:14,254 INFO ]: Finished minimizeSevpa. Reduced states from 915 to 637. [2018-06-24 20:19:14,254 INFO ]: Start removeUnreachable. Operand 637 states. [2018-06-24 20:19:14,279 INFO ]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1693 transitions. [2018-06-24 20:19:14,279 INFO ]: Start accepts. Automaton has 637 states and 1693 transitions. Word has length 10 [2018-06-24 20:19:14,279 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:19:14,279 INFO ]: Abstraction has 637 states and 1693 transitions. [2018-06-24 20:19:14,279 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:19:14,280 INFO ]: Start isEmpty. Operand 637 states and 1693 transitions. [2018-06-24 20:19:14,316 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 20:19:14,317 INFO ]: Found error trace [2018-06-24 20:19:14,317 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:19:14,317 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:19:14,317 INFO ]: Analyzing trace with hash -966098957, now seen corresponding path program 1 times [2018-06-24 20:19:14,317 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:19:14,317 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:19:14,318 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:14,318 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:19:14,318 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:19:14,370 INFO ]: Conjunction of SSA is sat [2018-06-24 20:19:14,382 INFO ]: Counterexample might be feasible [2018-06-24 20:19:14,401 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:19:14,402 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:19:14 BasicIcfg [2018-06-24 20:19:14,402 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:19:14,405 INFO ]: Toolchain (without parser) took 14068.28 ms. Allocated memory was 307.8 MB in the beginning and 533.7 MB in the end (delta: 226.0 MB). Free memory was 252.2 MB in the beginning and 418.3 MB in the end (delta: -166.1 MB). Peak memory consumption was 59.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,407 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:19:14,407 INFO ]: ChcToBoogie took 114.44 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 248.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,407 INFO ]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 307.8 MB. Free memory was 248.2 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,409 INFO ]: RCFGBuilder took 1418.57 ms. Allocated memory was 307.8 MB in the beginning and 324.5 MB in the end (delta: 16.8 MB). Free memory was 246.2 MB in the beginning and 290.7 MB in the end (delta: -44.5 MB). Peak memory consumption was 66.2 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,410 INFO ]: BlockEncodingV2 took 717.17 ms. Allocated memory is still 324.5 MB. Free memory was 290.7 MB in the beginning and 259.8 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,410 INFO ]: TraceAbstraction took 11750.43 ms. Allocated memory was 324.5 MB in the beginning and 533.7 MB in the end (delta: 209.2 MB). Free memory was 259.8 MB in the beginning and 418.3 MB in the end (delta: -158.5 MB). Peak memory consumption was 50.7 MB. Max. memory is 3.6 GB. [2018-06-24 20:19:14,418 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 145 locations, 284 edges - StatisticsResult: Encoded RCFG 133 locations, 267 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 307.8 MB. Free memory is still 273.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 114.44 ms. Allocated memory is still 307.8 MB. Free memory was 252.2 MB in the beginning and 248.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 307.8 MB. Free memory was 248.2 MB in the beginning and 246.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1418.57 ms. Allocated memory was 307.8 MB in the beginning and 324.5 MB in the end (delta: 16.8 MB). Free memory was 246.2 MB in the beginning and 290.7 MB in the end (delta: -44.5 MB). Peak memory consumption was 66.2 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 717.17 ms. Allocated memory is still 324.5 MB. Free memory was 290.7 MB in the beginning and 259.8 MB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 11750.43 ms. Allocated memory was 324.5 MB in the beginning and 533.7 MB in the end (delta: 209.2 MB). Free memory was 259.8 MB in the beginning and 418.3 MB in the end (delta: -158.5 MB). Peak memory consumption was 50.7 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); [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); [L0] COND TRUE gotoSwitch == 5 [L0] hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int := gpav_0_Int, gpav_1_Int, gpav_2_Int, gpav_3_Int, gpav_4_Int, gpav_5_Int, gpav_6_Int, gpav_7_Int, gpav_8_Int, gpav_9_Int, gpav_10_Int, gpav_11_Int; [L0] assume true; [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_lturn_0_Int, hhv_lturn_1_Int, hhv_lturn_2_Int, hhv_lturn_3_Int, hhv_lturn_4_Int, hhv_lturn_5_Int, hhv_lturn_6_Int, hhv_lturn_7_Int, hhv_lturn_9_Int, hhv_lturn_10_Int, hhv_lturn_8_Int, hhv_lturn_11_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); [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 := 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_11_Int, hbv_False_10_Int, hbv_False_12_Int; [L0] havoc hbv_False_9_Int, hbv_False_7_Int, hbv_False_5_Int, hbv_False_12_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_6_Int, hbv_False_1_Int, hbv_False_8_Int, hbv_False_11_Int, hbv_False_10_Int; [L0] RET call gotoProc(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, 133 locations, 1 error locations. UNSAFE Result, 11.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 10.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1528 SDtfs, 286 SDslu, 2025 SDs, 0 SdLazy, 3825 SolverSat, 919 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=637occurred 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: 0.7s AutomataMinimizationTime, 3 MinimizatonAttempts, 278 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-19-14-434.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-19-14-434.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-19-14-434.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.3.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-19-14-434.csv Received shutdown request...