java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i '/storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2' -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:50:15,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:50:15,904 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:50:15,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:50:15,917 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:50:15,918 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:50:15,922 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:50:15,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:50:15,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:50:15,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:50:15,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:50:15,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:50:15,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:50:15,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:50:15,931 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:50:15,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:50:15,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:50:15,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:50:15,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:50:15,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:50:15,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:50:15,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:50:15,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:50:15,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:50:15,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:50:15,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:50:15,958 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:50:15,959 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:50:15,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:50:15,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:50:15,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:50:15,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:50:15,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:50:15,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:50:15,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:50:15,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:50:15,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:50:15,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:50:15,981 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:50:15,981 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:50:15,984 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:50:15,985 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:50:15,985 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:50:15,985 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:50:15,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:50:15,986 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:50:15,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:50:15,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:50:15,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:50:15,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:50:15,987 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:50:15,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:50:15,987 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:50:15,987 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:50:15,987 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:50:15,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:50:15,992 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:50:15,994 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:50:15,994 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:50:16,044 INFO ]: Repository-Root is: /tmp [2018-06-25 09:50:16,064 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:50:16,068 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:50:16,070 INFO ]: Initializing SmtParser... [2018-06-25 09:50:16,070 INFO ]: SmtParser initialized [2018-06-25 09:50:16,071 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 [2018-06-25 09:50:16,072 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-25 09:50:16,167 INFO ]: Executing SMT file /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 unknown de.uni_freiburg.informatik.ultimate.plugins.generator.treeautomizer.parsing.HornClauseParserScript$1@606a01bc [2018-06-25 09:50:16,441 INFO ]: Succesfully executed SMT file /storage/chc-comp/llreve-bench/smt2/faulty__limit1!.smt2 [2018-06-25 09:50:16,445 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:50:16,450 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:50:16,451 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:50:16,451 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:50:16,451 INFO ]: ChcToBoogie initialized [2018-06-25 09:50:16,455 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,512 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16 Unit [2018-06-25 09:50:16,512 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:50:16,513 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:50:16,513 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:50:16,514 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:50:16,534 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,534 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,540 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,541 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,547 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,550 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,558 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... [2018-06-25 09:50:16,560 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:50:16,560 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:50:16,560 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:50:16,560 INFO ]: RCFGBuilder initialized [2018-06-25 09:50:16,567 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-25 09:50:16,581 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:50:16,581 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:50:16,581 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:50:16,581 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:50:16,581 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:50:16,581 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:50:16,978 INFO ]: Using library mode [2018-06-25 09:50:16,978 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:50:16 BoogieIcfgContainer [2018-06-25 09:50:16,978 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:50:16,980 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:50:16,980 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:50:16,984 INFO ]: TraceAbstraction initialized [2018-06-25 09:50:16,984 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:50:16" (1/3) ... [2018-06-25 09:50:16,985 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecfc2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:50:16, skipping insertion in model container [2018-06-25 09:50:16,985 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:50:16" (2/3) ... [2018-06-25 09:50:16,985 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ecfc2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:50:16, skipping insertion in model container [2018-06-25 09:50:16,985 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:50:16" (3/3) ... [2018-06-25 09:50:16,986 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:50:16,993 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:50:17,000 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:50:17,041 INFO ]: Using default assertion order modulation [2018-06-25 09:50:17,042 INFO ]: Interprodecural is true [2018-06-25 09:50:17,042 INFO ]: Hoare is false [2018-06-25 09:50:17,042 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:50:17,042 INFO ]: Backedges is TWOTRACK [2018-06-25 09:50:17,042 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:50:17,042 INFO ]: Difference is false [2018-06-25 09:50:17,042 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:50:17,042 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:50:17,055 INFO ]: Start isEmpty. Operand 28 states. [2018-06-25 09:50:17,065 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 09:50:17,065 INFO ]: Found error trace [2018-06-25 09:50:17,066 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:17,066 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:17,073 INFO ]: Analyzing trace with hash -440606307, now seen corresponding path program 1 times [2018-06-25 09:50:17,076 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:17,076 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:17,111 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,111 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:17,111 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,134 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:17,169 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:17,171 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:17,171 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-25 09:50:17,172 INFO ]: Interpolant automaton has 2 states [2018-06-25 09:50:17,182 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-25 09:50:17,183 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:50:17,185 INFO ]: Start difference. First operand 28 states. Second operand 2 states. [2018-06-25 09:50:17,205 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:17,206 INFO ]: Finished difference Result 26 states and 41 transitions. [2018-06-25 09:50:17,206 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-25 09:50:17,207 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-25 09:50:17,207 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:17,217 INFO ]: With dead ends: 26 [2018-06-25 09:50:17,217 INFO ]: Without dead ends: 26 [2018-06-25 09:50:17,219 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-25 09:50:17,237 INFO ]: Start minimizeSevpa. Operand 26 states. [2018-06-25 09:50:17,257 INFO ]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-06-25 09:50:17,258 INFO ]: Start removeUnreachable. Operand 26 states. [2018-06-25 09:50:17,259 INFO ]: Finished removeUnreachable. Reduced from 26 states to 26 states and 41 transitions. [2018-06-25 09:50:17,260 INFO ]: Start accepts. Automaton has 26 states and 41 transitions. Word has length 7 [2018-06-25 09:50:17,261 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:17,261 INFO ]: Abstraction has 26 states and 41 transitions. [2018-06-25 09:50:17,261 INFO ]: Interpolant automaton has 2 states. [2018-06-25 09:50:17,261 INFO ]: Start isEmpty. Operand 26 states and 41 transitions. [2018-06-25 09:50:17,262 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:50:17,262 INFO ]: Found error trace [2018-06-25 09:50:17,262 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:17,262 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:17,262 INFO ]: Analyzing trace with hash -780641246, now seen corresponding path program 1 times [2018-06-25 09:50:17,262 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:17,262 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:17,263 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,263 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:17,263 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,272 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:17,334 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:17,334 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:17,334 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:17,335 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:17,336 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:17,336 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:17,336 INFO ]: Start difference. First operand 26 states and 41 transitions. Second operand 4 states. [2018-06-25 09:50:17,783 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:17,783 INFO ]: Finished difference Result 49 states and 79 transitions. [2018-06-25 09:50:17,784 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:17,784 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:50:17,784 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:17,786 INFO ]: With dead ends: 49 [2018-06-25 09:50:17,786 INFO ]: Without dead ends: 49 [2018-06-25 09:50:17,787 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:17,787 INFO ]: Start minimizeSevpa. Operand 49 states. [2018-06-25 09:50:17,797 INFO ]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-06-25 09:50:17,797 INFO ]: Start removeUnreachable. Operand 49 states. [2018-06-25 09:50:17,800 INFO ]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2018-06-25 09:50:17,801 INFO ]: Start accepts. Automaton has 49 states and 79 transitions. Word has length 8 [2018-06-25 09:50:17,801 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:17,801 INFO ]: Abstraction has 49 states and 79 transitions. [2018-06-25 09:50:17,801 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:17,801 INFO ]: Start isEmpty. Operand 49 states and 79 transitions. [2018-06-25 09:50:17,801 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:50:17,801 INFO ]: Found error trace [2018-06-25 09:50:17,801 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:17,801 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:17,802 INFO ]: Analyzing trace with hash -791723498, now seen corresponding path program 1 times [2018-06-25 09:50:17,802 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:17,802 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:17,802 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,802 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:17,802 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:17,809 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:17,839 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:17,839 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:17,839 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:17,839 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:17,839 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:17,839 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:17,840 INFO ]: Start difference. First operand 49 states and 79 transitions. Second operand 4 states. [2018-06-25 09:50:18,056 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:18,056 INFO ]: Finished difference Result 72 states and 117 transitions. [2018-06-25 09:50:18,056 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:18,056 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 09:50:18,056 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:18,059 INFO ]: With dead ends: 72 [2018-06-25 09:50:18,059 INFO ]: Without dead ends: 72 [2018-06-25 09:50:18,060 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:18,060 INFO ]: Start minimizeSevpa. Operand 72 states. [2018-06-25 09:50:18,069 INFO ]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-06-25 09:50:18,069 INFO ]: Start removeUnreachable. Operand 72 states. [2018-06-25 09:50:18,073 INFO ]: Finished removeUnreachable. Reduced from 72 states to 72 states and 117 transitions. [2018-06-25 09:50:18,073 INFO ]: Start accepts. Automaton has 72 states and 117 transitions. Word has length 8 [2018-06-25 09:50:18,073 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:18,074 INFO ]: Abstraction has 72 states and 117 transitions. [2018-06-25 09:50:18,074 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:18,074 INFO ]: Start isEmpty. Operand 72 states and 117 transitions. [2018-06-25 09:50:18,074 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 09:50:18,074 INFO ]: Found error trace [2018-06-25 09:50:18,074 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:18,074 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:18,074 INFO ]: Analyzing trace with hash 64985944, now seen corresponding path program 1 times [2018-06-25 09:50:18,074 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:18,075 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:18,075 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:18,075 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:18,075 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:18,081 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:50:18,109 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:50:18,109 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:50:18,110 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-25 09:50:18,110 INFO ]: Interpolant automaton has 4 states [2018-06-25 09:50:18,110 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 09:50:18,110 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-25 09:50:18,110 INFO ]: Start difference. First operand 72 states and 117 transitions. Second operand 4 states. [2018-06-25 09:50:18,286 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:50:18,287 INFO ]: Finished difference Result 95 states and 155 transitions. [2018-06-25 09:50:18,287 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:50:18,287 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-25 09:50:18,287 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:50:18,290 INFO ]: With dead ends: 95 [2018-06-25 09:50:18,290 INFO ]: Without dead ends: 95 [2018-06-25 09:50:18,290 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:50:18,290 INFO ]: Start minimizeSevpa. Operand 95 states. [2018-06-25 09:50:18,305 INFO ]: Finished minimizeSevpa. Reduced states from 95 to 95. [2018-06-25 09:50:18,306 INFO ]: Start removeUnreachable. Operand 95 states. [2018-06-25 09:50:18,313 INFO ]: Finished removeUnreachable. Reduced from 95 states to 95 states and 155 transitions. [2018-06-25 09:50:18,313 INFO ]: Start accepts. Automaton has 95 states and 155 transitions. Word has length 10 [2018-06-25 09:50:18,313 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:50:18,313 INFO ]: Abstraction has 95 states and 155 transitions. [2018-06-25 09:50:18,313 INFO ]: Interpolant automaton has 4 states. [2018-06-25 09:50:18,313 INFO ]: Start isEmpty. Operand 95 states and 155 transitions. [2018-06-25 09:50:18,315 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 09:50:18,315 INFO ]: Found error trace [2018-06-25 09:50:18,315 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:50:18,316 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:50:18,316 INFO ]: Analyzing trace with hash -1034856173, now seen corresponding path program 1 times [2018-06-25 09:50:18,316 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:50:18,316 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:50:18,317 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:18,317 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:50:18,317 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:50:18,343 INFO ]: Conjunction of SSA is sat [2018-06-25 09:50:18,348 INFO ]: Counterexample might be feasible [2018-06-25 09:50:18,366 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:50:18 BoogieIcfgContainer [2018-06-25 09:50:18,366 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:50:18,367 INFO ]: Toolchain (without parser) took 1921.62 ms. Allocated memory was 306.7 MB in the beginning and 325.6 MB in the end (delta: 18.9 MB). Free memory was 261.2 MB in the beginning and 286.3 MB in the end (delta: -25.1 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:18,369 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:18,369 INFO ]: ChcToBoogie took 62.24 ms. Allocated memory is still 306.7 MB. Free memory was 261.2 MB in the beginning and 259.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:18,370 INFO ]: Boogie Preprocessor took 46.47 ms. Allocated memory is still 306.7 MB. Free memory was 259.2 MB in the beginning and 257.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:18,370 INFO ]: RCFGBuilder took 417.96 ms. Allocated memory is still 306.7 MB. Free memory was 257.3 MB in the beginning and 245.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:50:18,371 INFO ]: TraceAbstraction took 1386.17 ms. Allocated memory was 306.7 MB in the beginning and 325.6 MB in the end (delta: 18.9 MB). Free memory was 245.3 MB in the beginning and 286.3 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:50:18,375 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.24 ms. Allocated memory is still 306.7 MB. Free memory was 261.2 MB in the beginning and 259.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 46.47 ms. Allocated memory is still 306.7 MB. Free memory was 259.2 MB in the beginning and 257.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 417.96 ms. Allocated memory is still 306.7 MB. Free memory was 257.3 MB in the beginning and 245.3 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1386.17 ms. Allocated memory was 306.7 MB in the beginning and 325.6 MB in the end (delta: 18.9 MB). Free memory was 245.3 MB in the beginning and 286.3 MB in the end (delta: -41.0 MB). There was no memory consumed. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] COND FALSE !(gotoSwitch == 6) [L0] COND FALSE !(gotoSwitch == 3) [L0] COND FALSE !(gotoSwitch == 2) [L0] assume ((!(hbv_False_2_Int <= 1) && !(hbv_False_1_Int + hbv_False_3_Int == hbv_False_2_Int + (hbv_False_2_Int - 1) + hbv_False_4_Int)) && !(hbv_False_1_Int <= 1)) && hbv_False_1_Int == hbv_False_2_Int; [L0] hhv_INV_REC_f^f_0_Int, hhv_INV_REC_f^f_1_Int, hhv_INV_REC_f^f_2_Int, hhv_INV_REC_f^f_3_Int := hbv_False_1_Int - 1, hbv_False_2_Int - 3, hbv_False_3_Int, hbv_False_4_Int; [L0] havoc hbv_False_1_Int, hbv_False_3_Int, hbv_False_2_Int, hbv_False_4_Int; [L0] assume ((hhv_INV_REC_f^f_0_Int <= 1 && hhv_INV_REC_f^f_3_Int == hhv_INV_REC_f^f_1_Int) && hhv_INV_REC_f^f_2_Int == hhv_INV_REC_f^f_0_Int) && hhv_INV_REC_f^f_1_Int <= 1; [L0] hhv_INV_REC_f^f_PRE_0_Int, hhv_INV_REC_f^f_PRE_1_Int := hhv_INV_REC_f^f_0_Int, hhv_INV_REC_f^f_1_Int; [L0] assume (((!(hbv_INV_REC_f^f_PRE_2_Int <= 1) && hhv_INV_REC_f^f_PRE_0_Int == hbv_INV_REC_f^f_PRE_1_Int - 1) && !(hbv_INV_REC_f^f_PRE_1_Int <= 1)) && hbv_INV_REC_f^f_PRE_1_Int == hbv_INV_REC_f^f_PRE_2_Int) && hhv_INV_REC_f^f_PRE_1_Int == hbv_INV_REC_f^f_PRE_2_Int - 3; [L0] RET call gotoProc(0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. UNSAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 189 SDtfs, 165 SDslu, 69 SDs, 0 SdLazy, 154 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 481 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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/faulty__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-50-18-390.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/faulty__limit1!.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-50-18-390.csv Received shutdown request...