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.2.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:18:47,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:18:47,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:18:47,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:18:47,028 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:18:47,029 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:18:47,030 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:18:47,032 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:18:47,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:18:47,035 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:18:47,035 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:18:47,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:18:47,036 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:18:47,039 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:18:47,039 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:18:47,040 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:18:47,042 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:18:47,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:18:47,046 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:18:47,047 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:18:47,048 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:18:47,050 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:18:47,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:18:47,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:18:47,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:18:47,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:18:47,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:18:47,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:18:47,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:18:47,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:18:47,056 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:18:47,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:18:47,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:18:47,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:18:47,059 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:18:47,059 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:18:47,089 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:18:47,089 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:18:47,089 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:18:47,090 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:18:47,090 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:18:47,095 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:18:47,095 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:18:47,095 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:18:47,096 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:18:47,096 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:18:47,096 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:18:47,096 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:18:47,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:18:47,096 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:18:47,097 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:18:47,097 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:18:47,097 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:18:47,097 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:18:47,097 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:18:47,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:18:47,098 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:18:47,100 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:18:47,100 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:18:47,145 INFO ]: Repository-Root is: /tmp [2018-06-24 20:18:47,204 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:18:47,211 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:18:47,212 INFO ]: Initializing SmtParser... [2018-06-24 20:18:47,212 INFO ]: SmtParser initialized [2018-06-24 20:18:47,213 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.2.smt2 [2018-06-24 20:18:47,214 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 20:18:47,322 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.2.smt2 unknown [2018-06-24 20:18:47,763 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/ch-triangle-location-nr.2.smt2 [2018-06-24 20:18:47,768 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:18:47,775 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:18:47,776 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:18:47,776 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:18:47,776 INFO ]: ChcToBoogie initialized [2018-06-24 20:18:47,779 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,868 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47 Unit [2018-06-24 20:18:47,868 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:18:47,868 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:18:47,868 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:18:47,868 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:18:47,889 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,890 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,898 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,898 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,916 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,920 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,933 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (1/1) ... [2018-06-24 20:18:47,936 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:18:47,937 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:18:47,937 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:18:47,937 INFO ]: RCFGBuilder initialized [2018-06-24 20:18:47,937 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (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 20:18:47,947 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:18:47,947 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:18:47,947 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:18:47,947 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:18:47,947 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:18:47,947 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 20:18:49,614 INFO ]: Using library mode [2018-06-24 20:18:49,615 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:18:49 BoogieIcfgContainer [2018-06-24 20:18:49,615 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:18:49,615 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:18:49,615 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:18:49,616 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:18:49,617 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:18:49" (1/1) ... [2018-06-24 20:18:49,660 INFO ]: Initial Icfg 145 locations, 283 edges [2018-06-24 20:18:49,661 INFO ]: Using Remove infeasible edges [2018-06-24 20:18:49,662 INFO ]: Using Maximize final states [2018-06-24 20:18:49,662 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:18:49,662 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:18:49,664 INFO ]: Using Remove sink states [2018-06-24 20:18:49,665 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:18:49,665 INFO ]: Using Use SBE [2018-06-24 20:18:49,681 INFO ]: SBE split 0 edges [2018-06-24 20:18:49,687 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 20:18:49,689 INFO ]: 0 new accepting states [2018-06-24 20:18:50,277 INFO ]: Removed 62 edges and 9 locations by large block encoding [2018-06-24 20:18:50,280 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 20:18:50,283 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:18:50,283 INFO ]: 0 new accepting states [2018-06-24 20:18:50,285 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:18:50,286 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:18:50,288 INFO ]: Encoded RCFG 133 locations, 270 edges [2018-06-24 20:18:50,289 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:18:50 BasicIcfg [2018-06-24 20:18:50,289 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:18:50,290 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:18:50,290 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:18:50,293 INFO ]: TraceAbstraction initialized [2018-06-24 20:18:50,293 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:18:47" (1/4) ... [2018-06-24 20:18:50,295 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0b6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:18:50, skipping insertion in model container [2018-06-24 20:18:50,295 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:18:47" (2/4) ... [2018-06-24 20:18:50,295 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0b6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:18:50, skipping insertion in model container [2018-06-24 20:18:50,296 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:18:49" (3/4) ... [2018-06-24 20:18:50,296 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea0b6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:18:50, skipping insertion in model container [2018-06-24 20:18:50,296 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:18:50" (4/4) ... [2018-06-24 20:18:50,298 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:18:50,308 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:18:50,318 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:18:50,368 INFO ]: Using default assertion order modulation [2018-06-24 20:18:50,369 INFO ]: Interprodecural is true [2018-06-24 20:18:50,369 INFO ]: Hoare is false [2018-06-24 20:18:50,369 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:18:50,369 INFO ]: Backedges is TWOTRACK [2018-06-24 20:18:50,369 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:18:50,369 INFO ]: Difference is false [2018-06-24 20:18:50,369 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:18:50,369 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:18:50,391 INFO ]: Start isEmpty. Operand 133 states. [2018-06-24 20:18:50,441 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:18:50,441 INFO ]: Found error trace [2018-06-24 20:18:50,442 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:18:50,443 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:18:50,449 INFO ]: Analyzing trace with hash 5767443, now seen corresponding path program 1 times [2018-06-24 20:18:50,451 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:18:50,452 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:18:50,499 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:50,499 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:18:50,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:50,550 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:18:50,715 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:18:50,717 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:18:50,717 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:18:50,719 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:18:50,734 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:18:50,734 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:18:50,738 INFO ]: Start difference. First operand 133 states. Second operand 3 states. [2018-06-24 20:18:52,777 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:18:52,777 INFO ]: Finished difference Result 263 states and 537 transitions. [2018-06-24 20:18:52,778 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:18:52,779 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:18:52,780 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:18:52,815 INFO ]: With dead ends: 263 [2018-06-24 20:18:52,815 INFO ]: Without dead ends: 263 [2018-06-24 20:18:52,817 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 20:18:52,835 INFO ]: Start minimizeSevpa. Operand 263 states. [2018-06-24 20:18:52,950 INFO ]: Finished minimizeSevpa. Reduced states from 263 to 263. [2018-06-24 20:18:52,951 INFO ]: Start removeUnreachable. Operand 263 states. [2018-06-24 20:18:52,965 INFO ]: Finished removeUnreachable. Reduced from 263 states to 263 states and 537 transitions. [2018-06-24 20:18:52,966 INFO ]: Start accepts. Automaton has 263 states and 537 transitions. Word has length 4 [2018-06-24 20:18:52,968 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:18:52,968 INFO ]: Abstraction has 263 states and 537 transitions. [2018-06-24 20:18:52,968 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:18:52,968 INFO ]: Start isEmpty. Operand 263 states and 537 transitions. [2018-06-24 20:18:53,002 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:18:53,002 INFO ]: Found error trace [2018-06-24 20:18:53,002 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:18:53,003 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:18:53,003 INFO ]: Analyzing trace with hash 893424205, now seen corresponding path program 1 times [2018-06-24 20:18:53,003 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:18:53,003 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:18:53,004 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:53,004 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:18:53,004 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:53,036 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:18:53,186 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:18:53,186 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:18:53,186 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:18:53,187 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:18:53,187 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:18:53,187 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:18:53,187 INFO ]: Start difference. First operand 263 states and 537 transitions. Second operand 5 states. [2018-06-24 20:18:56,316 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:18:56,316 INFO ]: Finished difference Result 654 states and 2254 transitions. [2018-06-24 20:18:56,317 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:18:56,317 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:18:56,317 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:18:56,372 INFO ]: With dead ends: 654 [2018-06-24 20:18:56,372 INFO ]: Without dead ends: 654 [2018-06-24 20:18:56,372 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:18:56,373 INFO ]: Start minimizeSevpa. Operand 654 states. [2018-06-24 20:18:56,669 INFO ]: Finished minimizeSevpa. Reduced states from 654 to 447. [2018-06-24 20:18:56,669 INFO ]: Start removeUnreachable. Operand 447 states. [2018-06-24 20:18:56,686 INFO ]: Finished removeUnreachable. Reduced from 447 states to 447 states and 1272 transitions. [2018-06-24 20:18:56,686 INFO ]: Start accepts. Automaton has 447 states and 1272 transitions. Word has length 9 [2018-06-24 20:18:56,687 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:18:56,687 INFO ]: Abstraction has 447 states and 1272 transitions. [2018-06-24 20:18:56,687 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:18:56,687 INFO ]: Start isEmpty. Operand 447 states and 1272 transitions. [2018-06-24 20:18:56,742 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:18:56,742 INFO ]: Found error trace [2018-06-24 20:18:56,742 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:18:56,742 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:18:56,742 INFO ]: Analyzing trace with hash 893425166, now seen corresponding path program 1 times [2018-06-24 20:18:56,742 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:18:56,742 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:18:56,743 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:56,743 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:18:56,743 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:18:56,796 INFO ]: Conjunction of SSA is sat [2018-06-24 20:18:56,803 INFO ]: Counterexample might be feasible [2018-06-24 20:18:56,816 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:18:56,818 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:18:56 BasicIcfg [2018-06-24 20:18:56,818 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:18:56,819 INFO ]: Toolchain (without parser) took 9048.53 ms. Allocated memory was 309.3 MB in the beginning and 442.0 MB in the end (delta: 132.6 MB). Free memory was 254.4 MB in the beginning and 261.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 125.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,821 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 275.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:18:56,822 INFO ]: ChcToBoogie took 92.39 ms. Allocated memory is still 309.3 MB. Free memory was 254.4 MB in the beginning and 250.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,822 INFO ]: Boogie Preprocessor took 67.75 ms. Allocated memory is still 309.3 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,822 INFO ]: RCFGBuilder took 1678.26 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 248.4 MB in the beginning and 291.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 67.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,823 INFO ]: BlockEncodingV2 took 673.38 ms. Allocated memory is still 325.1 MB. Free memory was 291.1 MB in the beginning and 254.1 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,824 INFO ]: TraceAbstraction took 6528.50 ms. Allocated memory was 325.1 MB in the beginning and 442.0 MB in the end (delta: 116.9 MB). Free memory was 252.7 MB in the beginning and 261.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 108.3 MB. Max. memory is 3.6 GB. [2018-06-24 20:18:56,829 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 145 locations, 283 edges - StatisticsResult: Encoded RCFG 133 locations, 270 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 275.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 92.39 ms. Allocated memory is still 309.3 MB. Free memory was 254.4 MB in the beginning and 250.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 67.75 ms. Allocated memory is still 309.3 MB. Free memory was 250.4 MB in the beginning and 248.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1678.26 ms. Allocated memory was 309.3 MB in the beginning and 325.1 MB in the end (delta: 15.7 MB). Free memory was 248.4 MB in the beginning and 291.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 67.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 673.38 ms. Allocated memory is still 325.1 MB. Free memory was 291.1 MB in the beginning and 254.1 MB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 3.6 GB. * TraceAbstraction took 6528.50 ms. Allocated memory was 325.1 MB in the beginning and 442.0 MB in the end (delta: 116.9 MB). Free memory was 252.7 MB in the beginning and 261.2 MB in the end (delta: -8.6 MB). Peak memory consumption was 108.3 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(1, 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] RET call gotoProc(1, 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_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 := 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] havoc hbv_False_6_Int, hbv_False_5_Int, hbv_False_9_Int, hbv_False_12_Int, hbv_False_2_Int, hbv_False_10_Int, hbv_False_1_Int, hbv_False_11_Int, hbv_False_7_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_8_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, 6.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 764 SDtfs, 219 SDslu, 946 SDs, 0 SdLazy, 1861 SolverSat, 538 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=447occurred in iteration=2, 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, 2 MinimizatonAttempts, 207 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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.2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-18-56-841.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-18-56-841.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-18-56-841.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ch-triangle-location-nr.2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-18-56-841.csv Received shutdown request...