java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/020d-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 09:14:32,125 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 09:14:32,126 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 09:14:32,138 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 09:14:32,138 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 09:14:32,139 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 09:14:32,140 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 09:14:32,141 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 09:14:32,143 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 09:14:32,144 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 09:14:32,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 09:14:32,145 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 09:14:32,145 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 09:14:32,146 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 09:14:32,147 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 09:14:32,148 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 09:14:32,150 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 09:14:32,152 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 09:14:32,153 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 09:14:32,154 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 09:14:32,155 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 09:14:32,158 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 09:14:32,158 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 09:14:32,158 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 09:14:32,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 09:14:32,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 09:14:32,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 09:14:32,162 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 09:14:32,163 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 09:14:32,163 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 09:14:32,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 09:14:32,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 09:14:32,165 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 09:14:32,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 09:14:32,166 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 09:14:32,166 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 09:14:32,180 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 09:14:32,181 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 09:14:32,181 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 09:14:32,181 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 09:14:32,182 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 09:14:32,182 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 09:14:32,183 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 09:14:32,183 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 09:14:32,183 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 09:14:32,183 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 09:14:32,184 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 09:14:32,184 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 09:14:32,184 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 09:14:32,184 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 09:14:32,185 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 09:14:32,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 09:14:32,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 09:14:32,185 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 09:14:32,186 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 09:14:32,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 09:14:32,186 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 09:14:32,187 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 09:14:32,188 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 09:14:32,233 INFO ]: Repository-Root is: /tmp [2018-06-25 09:14:32,253 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 09:14:32,258 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 09:14:32,259 INFO ]: Initializing SmtParser... [2018-06-25 09:14:32,260 INFO ]: SmtParser initialized [2018-06-25 09:14:32,260 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/020d-horn.smt2 [2018-06-25 09:14:32,262 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 09:14:32,355 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/020d-horn.smt2 unknown [2018-06-25 09:14:32,532 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/020d-horn.smt2 [2018-06-25 09:14:32,537 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 09:14:32,551 INFO ]: Walking toolchain with 4 elements. [2018-06-25 09:14:32,552 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 09:14:32,552 INFO ]: Initializing ChcToBoogie... [2018-06-25 09:14:32,552 INFO ]: ChcToBoogie initialized [2018-06-25 09:14:32,555 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,595 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32 Unit [2018-06-25 09:14:32,595 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 09:14:32,595 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 09:14:32,595 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 09:14:32,595 INFO ]: Boogie Preprocessor initialized [2018-06-25 09:14:32,615 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,615 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,621 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,621 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,624 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,626 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,627 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (1/1) ... [2018-06-25 09:14:32,628 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 09:14:32,629 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 09:14:32,629 INFO ]: Initializing RCFGBuilder... [2018-06-25 09:14:32,629 INFO ]: RCFGBuilder initialized [2018-06-25 09:14:32,633 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (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 09:14:32,649 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 09:14:32,649 INFO ]: Found specification of procedure gotoProc [2018-06-25 09:14:32,649 INFO ]: Found implementation of procedure gotoProc [2018-06-25 09:14:32,649 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 09:14:32,649 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 09:14:32,649 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 09:14:32,906 INFO ]: Using library mode [2018-06-25 09:14:32,906 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:14:32 BoogieIcfgContainer [2018-06-25 09:14:32,906 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 09:14:32,907 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 09:14:32,907 INFO ]: Initializing TraceAbstraction... [2018-06-25 09:14:32,917 INFO ]: TraceAbstraction initialized [2018-06-25 09:14:32,917 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 09:14:32" (1/3) ... [2018-06-25 09:14:32,918 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17216713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 09:14:32, skipping insertion in model container [2018-06-25 09:14:32,918 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 09:14:32" (2/3) ... [2018-06-25 09:14:32,918 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17216713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 09:14:32, skipping insertion in model container [2018-06-25 09:14:32,918 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 09:14:32" (3/3) ... [2018-06-25 09:14:32,920 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 09:14:32,929 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 09:14:32,937 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 09:14:32,980 INFO ]: Using default assertion order modulation [2018-06-25 09:14:32,980 INFO ]: Interprodecural is true [2018-06-25 09:14:32,980 INFO ]: Hoare is false [2018-06-25 09:14:32,980 INFO ]: Compute interpolants for FPandBP [2018-06-25 09:14:32,980 INFO ]: Backedges is TWOTRACK [2018-06-25 09:14:32,980 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 09:14:32,980 INFO ]: Difference is false [2018-06-25 09:14:32,980 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 09:14:32,980 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 09:14:32,991 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 09:14:33,001 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 09:14:33,001 INFO ]: Found error trace [2018-06-25 09:14:33,002 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:14:33,002 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:14:33,007 INFO ]: Analyzing trace with hash -204604396, now seen corresponding path program 1 times [2018-06-25 09:14:33,009 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:14:33,009 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:14:33,056 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:33,057 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:14:33,057 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:33,102 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:14:33,174 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:14:33,176 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 09:14:33,176 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 09:14:33,177 INFO ]: Interpolant automaton has 3 states [2018-06-25 09:14:33,188 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 09:14:33,188 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 09:14:33,190 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 09:14:33,247 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:14:33,247 INFO ]: Finished difference Result 9 states and 13 transitions. [2018-06-25 09:14:33,248 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 09:14:33,249 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 09:14:33,249 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:14:33,258 INFO ]: With dead ends: 9 [2018-06-25 09:14:33,258 INFO ]: Without dead ends: 9 [2018-06-25 09:14:33,260 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 [2018-06-25 09:14:33,274 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 09:14:33,293 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 09:14:33,294 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 09:14:33,294 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2018-06-25 09:14:33,296 INFO ]: Start accepts. Automaton has 9 states and 13 transitions. Word has length 7 [2018-06-25 09:14:33,296 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:14:33,296 INFO ]: Abstraction has 9 states and 13 transitions. [2018-06-25 09:14:33,296 INFO ]: Interpolant automaton has 3 states. [2018-06-25 09:14:33,296 INFO ]: Start isEmpty. Operand 9 states and 13 transitions. [2018-06-25 09:14:33,297 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:14:33,297 INFO ]: Found error trace [2018-06-25 09:14:33,297 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:14:33,297 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:14:33,297 INFO ]: Analyzing trace with hash -2057039604, now seen corresponding path program 1 times [2018-06-25 09:14:33,297 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:14:33,297 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:14:33,298 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:33,298 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:14:33,298 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:33,319 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:14:33,415 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:14:33,415 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 09:14:33,415 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-25 09:14:33,436 INFO ]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 09:14:33,479 INFO ]: Conjunction of SSA is unsat [2018-06-25 09:14:33,488 INFO ]: Computing forward predicates... [2018-06-25 09:14:33,716 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 09:14:33,749 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 09:14:33,750 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 09:14:33,750 INFO ]: Interpolant automaton has 5 states [2018-06-25 09:14:33,750 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 09:14:33,750 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 09:14:33,750 INFO ]: Start difference. First operand 9 states and 13 transitions. Second operand 5 states. [2018-06-25 09:14:33,950 WARN ]: Spent 129.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-06-25 09:14:34,155 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 09:14:34,155 INFO ]: Finished difference Result 11 states and 17 transitions. [2018-06-25 09:14:34,155 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 09:14:34,155 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-25 09:14:34,155 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 09:14:34,156 INFO ]: With dead ends: 11 [2018-06-25 09:14:34,156 INFO ]: Without dead ends: 11 [2018-06-25 09:14:34,157 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 09:14:34,157 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 09:14:34,158 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 09:14:34,158 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 09:14:34,159 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2018-06-25 09:14:34,159 INFO ]: Start accepts. Automaton has 11 states and 17 transitions. Word has length 8 [2018-06-25 09:14:34,159 INFO ]: Finished accepts. word is rejected. [2018-06-25 09:14:34,159 INFO ]: Abstraction has 11 states and 17 transitions. [2018-06-25 09:14:34,159 INFO ]: Interpolant automaton has 5 states. [2018-06-25 09:14:34,159 INFO ]: Start isEmpty. Operand 11 states and 17 transitions. [2018-06-25 09:14:34,160 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 09:14:34,160 INFO ]: Found error trace [2018-06-25 09:14:34,160 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 09:14:34,160 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 09:14:34,160 INFO ]: Analyzing trace with hash -2049651436, now seen corresponding path program 1 times [2018-06-25 09:14:34,160 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 09:14:34,160 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 09:14:34,161 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:34,161 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 09:14:34,161 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 09:14:34,174 INFO ]: Conjunction of SSA is sat [2018-06-25 09:14:34,177 INFO ]: Counterexample might be feasible [2018-06-25 09:14:34,192 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 09:14:34 BoogieIcfgContainer [2018-06-25 09:14:34,192 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 09:14:34,193 INFO ]: Toolchain (without parser) took 1655.37 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 216.7 MB in the end (delta: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 3.6 GB. [2018-06-25 09:14:34,194 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 09:14:34,194 INFO ]: ChcToBoogie took 42.83 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:14:34,195 INFO ]: Boogie Preprocessor took 32.88 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:14:34,195 INFO ]: RCFGBuilder took 277.94 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. [2018-06-25 09:14:34,196 INFO ]: TraceAbstraction took 1284.71 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 216.7 MB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 3.6 GB. [2018-06-25 09:14:34,199 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.8 MB. Free memory is still 273.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 42.83 ms. Allocated memory is still 308.8 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 32.88 ms. Allocated memory is still 308.8 MB. Free memory was 263.2 MB in the beginning and 261.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 277.94 ms. Allocated memory is still 308.8 MB. Free memory was 261.2 MB in the beginning and 253.2 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1284.71 ms. Allocated memory is still 308.8 MB. Free memory was 251.2 MB in the beginning and 216.7 MB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 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); [L0] gotoSwitch := gotoSwitch_in; [L0] assume ((!(hbv_False_3_Int + hbv_False_3_Int - hbv_False_4_Int + -1 >= 0) && !(hbv_False_6_Int == hbv_False_7_Int)) && hbv_False_1_Int == hbv_False_2_Int) && !(hbv_False_5_Int + -1 >= 0); [L0] hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int, hhv_INV1_6_Int, hhv_INV1_7_Int := hbv_False_3_Int, hbv_False_4_Int, hbv_False_6_Int, hbv_False_8_Int, hbv_False_5_Int, hbv_False_7_Int, hbv_False_1_Int, hbv_False_2_Int; [L0] havoc hbv_False_2_Int, hbv_False_3_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_5_Int, hbv_False_1_Int, hbv_False_4_Int, hbv_False_6_Int; [L0] assume (((hbv_INV1_2_Int + -1 >= 0 && !(hhv_INV1_0_Int + hhv_INV1_0_Int - hhv_INV1_1_Int + -1 >= 0)) && hbv_INV1_2_Int + -1 == hhv_INV1_4_Int) && hbv_INV1_1_Int + 2 == hhv_INV1_5_Int) && hhv_INV1_6_Int == hhv_INV1_7_Int; [L0] hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hhv_INV1_4_Int, hhv_INV1_5_Int, hhv_INV1_6_Int, hhv_INV1_7_Int := hhv_INV1_0_Int, hhv_INV1_1_Int, hhv_INV1_2_Int, hhv_INV1_3_Int, hbv_INV1_2_Int, hbv_INV1_1_Int, hhv_INV1_6_Int, hhv_INV1_7_Int; [L0] havoc hbv_INV1_2_Int, hbv_INV1_1_Int; [L0] assume (((((-1 * hhv_INV1_1_Int == 0 && -1 * hhv_INV1_2_Int == 0) && -1 * hhv_INV1_5_Int == 0) && hhv_INV1_3_Int + 1 == hhv_INV1_4_Int) && hhv_INV1_6_Int == hhv_INV1_0_Int) && hhv_INV1_7_Int == hhv_INV1_3_Int) && hhv_INV1_0_Int == hhv_INV1_3_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. UNSAFE Result, 1.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 27 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 1 QuantifiedInterpolants, 390 SizeOfPredicates, 4 NumberOfNonLiveVariables, 90 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/020d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_09-14-34-210.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/020d-horn.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_09-14-34-210.csv Received shutdown request...