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/reve/011c-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-26 18:04:39,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-26 18:04:39,767 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-26 18:04:39,781 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-26 18:04:39,782 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-26 18:04:39,782 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-26 18:04:39,783 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-26 18:04:39,785 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-26 18:04:39,787 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-26 18:04:39,788 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-26 18:04:39,789 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-26 18:04:39,790 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-26 18:04:39,790 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-26 18:04:39,791 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-26 18:04:39,795 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-26 18:04:39,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-26 18:04:39,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-26 18:04:39,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-26 18:04:39,809 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-26 18:04:39,810 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-26 18:04:39,811 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-26 18:04:39,812 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-26 18:04:39,817 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-26 18:04:39,817 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-26 18:04:39,817 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-26 18:04:39,818 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-26 18:04:39,819 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-26 18:04:39,821 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-26 18:04:39,822 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-26 18:04:39,823 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-26 18:04:39,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-26 18:04:39,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-26 18:04:39,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-06-26 18:04:39,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-26 18:04:39,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-26 18:04:39,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-26 18:04:39,829 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-26 18:04:39,848 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-26 18:04:39,848 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-26 18:04:39,849 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-26 18:04:39,849 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-26 18:04:39,851 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-26 18:04:39,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-26 18:04:39,851 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-26 18:04:39,851 INFO L133 SettingsManager]: * Use SBE=true [2018-06-26 18:04:39,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-26 18:04:39,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-26 18:04:39,852 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-26 18:04:39,852 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-26 18:04:39,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-26 18:04:39,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-26 18:04:39,853 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-26 18:04:39,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-26 18:04:39,853 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-26 18:04:39,853 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-26 18:04:39,853 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-26 18:04:39,854 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-26 18:04:39,854 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-26 18:04:39,856 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-26 18:04:39,857 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-26 18:04:39,904 INFO ]: Repository-Root is: /tmp [2018-06-26 18:04:39,918 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-26 18:04:39,922 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-26 18:04:39,924 INFO ]: Initializing SmtParser... [2018-06-26 18:04:39,924 INFO ]: SmtParser initialized [2018-06-26 18:04:39,925 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-26 18:04:39,926 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-26 18:04:40,010 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 unknown [2018-06-26 18:04:40,291 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/011c-horn.smt2 [2018-06-26 18:04:40,296 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-26 18:04:40,307 INFO ]: Walking toolchain with 5 elements. [2018-06-26 18:04:40,307 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-26 18:04:40,308 INFO ]: Initializing ChcToBoogie... [2018-06-26 18:04:40,308 INFO ]: ChcToBoogie initialized [2018-06-26 18:04:40,311 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,371 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40 Unit [2018-06-26 18:04:40,371 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-26 18:04:40,372 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-26 18:04:40,372 INFO ]: Initializing Boogie Preprocessor... [2018-06-26 18:04:40,372 INFO ]: Boogie Preprocessor initialized [2018-06-26 18:04:40,394 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,394 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,401 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,401 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,414 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,426 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,427 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (1/1) ... [2018-06-26 18:04:40,429 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-26 18:04:40,429 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-26 18:04:40,429 INFO ]: Initializing RCFGBuilder... [2018-06-26 18:04:40,429 INFO ]: RCFGBuilder initialized [2018-06-26 18:04:40,430 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (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) [2018-06-26 18:04:40,442 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-26 18:04:40,442 INFO ]: Found specification of procedure gotoProc [2018-06-26 18:04:40,442 INFO ]: Found implementation of procedure gotoProc [2018-06-26 18:04:40,442 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-26 18:04:40,442 INFO ]: Found specification of procedure Ultimate.START [2018-06-26 18:04:40,442 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 [2018-06-26 18:04:41,144 INFO ]: Using library mode [2018-06-26 18:04:41,144 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:04:41 BoogieIcfgContainer [2018-06-26 18:04:41,144 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-26 18:04:41,145 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-26 18:04:41,145 INFO ]: Initializing BlockEncodingV2... [2018-06-26 18:04:41,146 INFO ]: BlockEncodingV2 initialized [2018-06-26 18:04:41,146 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:04:41" (1/1) ... [2018-06-26 18:04:41,161 INFO ]: Initial Icfg 12 locations, 43 edges [2018-06-26 18:04:41,162 INFO ]: Using Remove infeasible edges [2018-06-26 18:04:41,163 INFO ]: Using Maximize final states [2018-06-26 18:04:41,164 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-26 18:04:41,164 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-26 18:04:41,167 INFO ]: Using Remove sink states [2018-06-26 18:04:41,168 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-26 18:04:41,168 INFO ]: Using Use SBE [2018-06-26 18:04:41,179 INFO ]: SBE split 0 edges [2018-06-26 18:04:41,189 INFO ]: Removed 15 edges and 2 locations because of local infeasibility [2018-06-26 18:04:41,190 INFO ]: 0 new accepting states [2018-06-26 18:04:41,275 INFO ]: Removed 11 edges and 2 locations by large block encoding [2018-06-26 18:04:41,277 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:04:41,278 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-26 18:04:41,278 INFO ]: 0 new accepting states [2018-06-26 18:04:41,278 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-26 18:04:41,280 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-26 18:04:41,280 INFO ]: Encoded RCFG 8 locations, 26 edges [2018-06-26 18:04:41,280 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:04:41 BasicIcfg [2018-06-26 18:04:41,280 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-26 18:04:41,281 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-26 18:04:41,281 INFO ]: Initializing TraceAbstraction... [2018-06-26 18:04:41,284 INFO ]: TraceAbstraction initialized [2018-06-26 18:04:41,285 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 26.06 06:04:40" (1/4) ... [2018-06-26 18:04:41,285 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c117c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 26.06 06:04:41, skipping insertion in model container [2018-06-26 18:04:41,285 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 26.06 06:04:40" (2/4) ... [2018-06-26 18:04:41,286 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c117c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.06 06:04:41, skipping insertion in model container [2018-06-26 18:04:41,286 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.06 06:04:41" (3/4) ... [2018-06-26 18:04:41,286 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c117c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:04:41, skipping insertion in model container [2018-06-26 18:04:41,286 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 26.06 06:04:41" (4/4) ... [2018-06-26 18:04:41,288 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-26 18:04:41,298 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-26 18:04:41,319 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-26 18:04:41,367 INFO ]: Using default assertion order modulation [2018-06-26 18:04:41,368 INFO ]: Interprodecural is true [2018-06-26 18:04:41,368 INFO ]: Hoare is false [2018-06-26 18:04:41,368 INFO ]: Compute interpolants for FPandBP [2018-06-26 18:04:41,368 INFO ]: Backedges is TWOTRACK [2018-06-26 18:04:41,368 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-26 18:04:41,368 INFO ]: Difference is false [2018-06-26 18:04:41,368 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-26 18:04:41,368 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-26 18:04:41,383 INFO ]: Start isEmpty. Operand 8 states. [2018-06-26 18:04:41,405 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:04:41,405 INFO ]: Found error trace [2018-06-26 18:04:41,406 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:04:41,406 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:04:41,415 INFO ]: Analyzing trace with hash 56741651, now seen corresponding path program 1 times [2018-06-26 18:04:41,416 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:04:41,416 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:04:41,446 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,447 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:04:41,447 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,497 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:04:41,556 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:04:41,558 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:04:41,558 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:04:41,559 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:04:41,572 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:04:41,572 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:04:41,575 INFO ]: Start difference. First operand 8 states. Second operand 3 states. [2018-06-26 18:04:41,750 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:04:41,750 INFO ]: Finished difference Result 11 states and 37 transitions. [2018-06-26 18:04:41,750 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:04:41,751 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:04:41,751 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:04:41,760 INFO ]: With dead ends: 11 [2018-06-26 18:04:41,760 INFO ]: Without dead ends: 11 [2018-06-26 18:04:41,761 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:04:41,773 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-26 18:04:41,789 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 9. [2018-06-26 18:04:41,790 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-26 18:04:41,791 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 32 transitions. [2018-06-26 18:04:41,792 INFO ]: Start accepts. Automaton has 9 states and 32 transitions. Word has length 5 [2018-06-26 18:04:41,793 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:04:41,793 INFO ]: Abstraction has 9 states and 32 transitions. [2018-06-26 18:04:41,793 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:04:41,793 INFO ]: Start isEmpty. Operand 9 states and 32 transitions. [2018-06-26 18:04:41,793 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:04:41,793 INFO ]: Found error trace [2018-06-26 18:04:41,793 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:04:41,793 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:04:41,793 INFO ]: Analyzing trace with hash 56770481, now seen corresponding path program 1 times [2018-06-26 18:04:41,793 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:04:41,793 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:04:41,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,794 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:04:41,794 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,799 INFO ]: Conjunction of SSA is unsat [2018-06-26 18:04:41,848 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-26 18:04:41,848 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-26 18:04:41,848 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-26 18:04:41,850 INFO ]: Interpolant automaton has 3 states [2018-06-26 18:04:41,850 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-26 18:04:41,850 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:04:41,850 INFO ]: Start difference. First operand 9 states and 32 transitions. Second operand 3 states. [2018-06-26 18:04:41,860 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-26 18:04:41,860 INFO ]: Finished difference Result 10 states and 32 transitions. [2018-06-26 18:04:41,860 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-26 18:04:41,860 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-26 18:04:41,860 INFO ]: Finished accepts. some prefix is accepted. [2018-06-26 18:04:41,861 INFO ]: With dead ends: 10 [2018-06-26 18:04:41,861 INFO ]: Without dead ends: 10 [2018-06-26 18:04:41,861 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-26 18:04:41,862 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-26 18:04:41,864 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-06-26 18:04:41,864 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-26 18:04:41,864 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 31 transitions. [2018-06-26 18:04:41,864 INFO ]: Start accepts. Automaton has 9 states and 31 transitions. Word has length 5 [2018-06-26 18:04:41,864 INFO ]: Finished accepts. word is rejected. [2018-06-26 18:04:41,864 INFO ]: Abstraction has 9 states and 31 transitions. [2018-06-26 18:04:41,864 INFO ]: Interpolant automaton has 3 states. [2018-06-26 18:04:41,864 INFO ]: Start isEmpty. Operand 9 states and 31 transitions. [2018-06-26 18:04:41,864 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-26 18:04:41,864 INFO ]: Found error trace [2018-06-26 18:04:41,864 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-26 18:04:41,865 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-26 18:04:41,865 INFO ]: Analyzing trace with hash 56772403, now seen corresponding path program 1 times [2018-06-26 18:04:41,865 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-26 18:04:41,865 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-26 18:04:41,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,866 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-26 18:04:41,866 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-26 18:04:41,872 INFO ]: Conjunction of SSA is sat [2018-06-26 18:04:41,873 INFO ]: Counterexample might be feasible [2018-06-26 18:04:41,885 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-26 18:04:41,888 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.06 06:04:41 BasicIcfg [2018-06-26 18:04:41,888 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-26 18:04:41,889 INFO ]: Toolchain (without parser) took 1592.45 ms. Allocated memory is still 302.0 MB. Free memory was 253.3 MB in the beginning and 204.1 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,890 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 302.0 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-26 18:04:41,891 INFO ]: ChcToBoogie took 64.14 ms. Allocated memory is still 302.0 MB. Free memory was 252.3 MB in the beginning and 250.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,892 INFO ]: Boogie Preprocessor took 56.96 ms. Allocated memory is still 302.0 MB. Free memory was 250.3 MB in the beginning and 249.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,896 INFO ]: RCFGBuilder took 715.09 ms. Allocated memory is still 302.0 MB. Free memory was 248.3 MB in the beginning and 231.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,897 INFO ]: BlockEncodingV2 took 135.60 ms. Allocated memory is still 302.0 MB. Free memory was 231.3 MB in the beginning and 227.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,897 INFO ]: TraceAbstraction took 606.72 ms. Allocated memory is still 302.0 MB. Free memory was 227.3 MB in the beginning and 204.1 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 3.6 GB. [2018-06-26 18:04:41,907 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 12 locations, 43 edges - StatisticsResult: Encoded RCFG 8 locations, 26 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 302.0 MB. Free memory is still 267.4 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.14 ms. Allocated memory is still 302.0 MB. Free memory was 252.3 MB in the beginning and 250.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 56.96 ms. Allocated memory is still 302.0 MB. Free memory was 250.3 MB in the beginning and 249.3 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 715.09 ms. Allocated memory is still 302.0 MB. Free memory was 248.3 MB in the beginning and 231.3 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 135.60 ms. Allocated memory is still 302.0 MB. Free memory was 231.3 MB in the beginning and 227.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 606.72 ms. Allocated memory is still 302.0 MB. Free memory was 227.3 MB in the beginning and 204.1 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 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); [L0] assume (((((!(hbv_False_1_Int + 1 == 0) && 2 - hbv_False_4_Int + -1 >= 0) && hbv_False_2_Int + -1 >= 0) && hbv_False_2_Int == hbv_False_4_Int) && !(hbv_False_1_Int + 1 <= -1)) && hbv_False_2_Int + -1 == hbv_False_3_Int) && !(hbv_False_4_Int + -1 + -1 >= 0); [L0] hhv_REC_f__0_Int, hhv_REC_f__1_Int := hbv_False_3_Int, hbv_False_1_Int; [L0] havoc hbv_False_4_Int, hbv_False_3_Int, hbv_False_1_Int, hbv_False_2_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 7 SDslu, 31 SDs, 0 SdLazy, 19 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=1, 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-26_18-04-41-921.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-26_18-04-41-921.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-26_18-04-41-921.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/011c-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-26_18-04-41-921.csv Received shutdown request...