java -Xss1g -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/Consistency/point-location.48.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:52:19,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:52:19,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:52:19,249 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:52:19,250 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:52:19,250 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:52:19,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:52:19,254 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:52:19,256 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:52:19,256 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:52:19,258 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:52:19,258 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:52:19,259 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:52:19,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:52:19,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:52:19,263 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:52:19,265 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:52:19,266 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:52:19,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:52:19,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:52:19,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:52:19,280 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:52:19,280 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:52:19,280 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:52:19,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:52:19,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:52:19,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:52:19,287 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:52:19,288 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:52:19,290 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:52:19,290 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:52:19,291 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:52:19,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:52:19,292 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:52:19,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:52:19,292 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:52:19,312 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:52:19,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:52:19,313 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:52:19,313 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:52:19,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:52:19,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:52:19,315 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:52:19,315 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:52:19,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:52:19,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:52:19,315 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:52:19,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:52:19,316 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:52:19,316 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:52:19,316 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:52:19,316 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:52:19,316 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:52:19,318 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:52:19,318 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:52:19,360 INFO ]: Repository-Root is: /tmp [2018-06-22 00:52:19,375 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:52:19,378 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:52:19,380 INFO ]: Initializing SmtParser... [2018-06-22 00:52:19,380 INFO ]: SmtParser initialized [2018-06-22 00:52:19,381 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 [2018-06-22 00:52:19,382 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 [2018-06-22 00:52:19,467 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 unknown [2018-06-22 00:52:19,972 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/point-location.48.smt2 [2018-06-22 00:52:19,982 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:52:19,988 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:52:19,988 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:52:19,988 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:52:19,993 INFO ]: ChcToBoogie initialized [2018-06-22 00:52:19,996 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:52:19" (1/1) ... [2018-06-22 00:52:20,101 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20 Unit [2018-06-22 00:52:20,101 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:52:20,101 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:52:20,101 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:52:20,101 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:52:20,124 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,124 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,143 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,143 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,172 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,179 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,189 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (1/1) ... [2018-06-22 00:52:20,194 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:52:20,195 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:52:20,195 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:52:20,195 INFO ]: RCFGBuilder initialized [2018-06-22 00:52:20,196 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (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) [2018-06-22 00:52:20,223 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:52:20,223 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:52:20,223 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:52:20,223 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:52:20,223 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:52:20,223 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 [2018-06-22 00:52:21,872 INFO ]: Using library mode [2018-06-22 00:52:21,873 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:52:21 BoogieIcfgContainer [2018-06-22 00:52:21,873 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:52:21,874 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:52:21,874 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:52:21,877 INFO ]: TraceAbstraction initialized [2018-06-22 00:52:21,877 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:52:19" (1/3) ... [2018-06-22 00:52:21,878 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd8f747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:52:21, skipping insertion in model container [2018-06-22 00:52:21,878 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:52:20" (2/3) ... [2018-06-22 00:52:21,878 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd8f747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:52:21, skipping insertion in model container [2018-06-22 00:52:21,878 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:52:21" (3/3) ... [2018-06-22 00:52:21,880 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:52:21,888 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:52:21,897 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:52:21,948 INFO ]: Using default assertion order modulation [2018-06-22 00:52:21,949 INFO ]: Interprodecural is true [2018-06-22 00:52:21,949 INFO ]: Hoare is false [2018-06-22 00:52:21,949 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:52:21,949 INFO ]: Backedges is TWOTRACK [2018-06-22 00:52:21,949 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:52:21,949 INFO ]: Difference is false [2018-06-22 00:52:21,949 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:52:21,949 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:52:21,970 INFO ]: Start isEmpty. Operand 147 states. [2018-06-22 00:52:21,991 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:52:21,992 INFO ]: Found error trace [2018-06-22 00:52:21,995 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:21,995 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:22,000 INFO ]: Analyzing trace with hash -804269225, now seen corresponding path program 1 times [2018-06-22 00:52:22,002 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:22,002 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:22,034 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:22,034 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:22,034 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:22,076 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:22,246 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:52:22,247 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:22,247 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:52:22,249 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:52:22,259 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:52:22,259 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:52:22,261 INFO ]: Start difference. First operand 147 states. Second operand 4 states. [2018-06-22 00:52:25,178 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:52:25,178 INFO ]: Finished difference Result 287 states and 565 transitions. [2018-06-22 00:52:25,179 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:52:25,180 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:52:25,180 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:52:25,226 INFO ]: With dead ends: 287 [2018-06-22 00:52:25,226 INFO ]: Without dead ends: 285 [2018-06-22 00:52:25,228 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:52:25,246 INFO ]: Start minimizeSevpa. Operand 285 states. [2018-06-22 00:52:25,386 INFO ]: Finished minimizeSevpa. Reduced states from 285 to 285. [2018-06-22 00:52:25,387 INFO ]: Start removeUnreachable. Operand 285 states. [2018-06-22 00:52:25,414 INFO ]: Finished removeUnreachable. Reduced from 285 states to 285 states and 563 transitions. [2018-06-22 00:52:25,415 INFO ]: Start accepts. Automaton has 285 states and 563 transitions. Word has length 8 [2018-06-22 00:52:25,416 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:52:25,416 INFO ]: Abstraction has 285 states and 563 transitions. [2018-06-22 00:52:25,416 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:52:25,416 INFO ]: Start isEmpty. Operand 285 states and 563 transitions. [2018-06-22 00:52:25,423 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:52:25,423 INFO ]: Found error trace [2018-06-22 00:52:25,423 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:25,423 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:25,424 INFO ]: Analyzing trace with hash 851092043, now seen corresponding path program 1 times [2018-06-22 00:52:25,424 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:25,424 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:25,424 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:25,424 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:25,424 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:25,430 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:25,618 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:52:25,618 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:25,618 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:52:25,619 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:52:25,619 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:52:25,619 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:52:25,620 INFO ]: Start difference. First operand 285 states and 563 transitions. Second operand 4 states. [2018-06-22 00:52:27,161 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:52:27,161 INFO ]: Finished difference Result 426 states and 843 transitions. [2018-06-22 00:52:27,174 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:52:27,174 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:52:27,174 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:52:27,197 INFO ]: With dead ends: 426 [2018-06-22 00:52:27,197 INFO ]: Without dead ends: 426 [2018-06-22 00:52:27,198 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:52:27,199 INFO ]: Start minimizeSevpa. Operand 426 states. [2018-06-22 00:52:27,293 INFO ]: Finished minimizeSevpa. Reduced states from 426 to 426. [2018-06-22 00:52:27,293 INFO ]: Start removeUnreachable. Operand 426 states. [2018-06-22 00:52:27,320 INFO ]: Finished removeUnreachable. Reduced from 426 states to 426 states and 843 transitions. [2018-06-22 00:52:27,320 INFO ]: Start accepts. Automaton has 426 states and 843 transitions. Word has length 9 [2018-06-22 00:52:27,320 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:52:27,320 INFO ]: Abstraction has 426 states and 843 transitions. [2018-06-22 00:52:27,320 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:52:27,320 INFO ]: Start isEmpty. Operand 426 states and 843 transitions. [2018-06-22 00:52:27,324 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 00:52:27,324 INFO ]: Found error trace [2018-06-22 00:52:27,325 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:27,325 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:27,325 INFO ]: Analyzing trace with hash 1386818061, now seen corresponding path program 1 times [2018-06-22 00:52:27,325 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:27,325 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:27,326 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:27,326 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:27,326 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:27,344 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:27,412 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:52:27,412 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:27,412 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:52:27,413 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:52:27,413 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:52:27,413 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:52:27,413 INFO ]: Start difference. First operand 426 states and 843 transitions. Second operand 4 states. [2018-06-22 00:52:28,650 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:52:28,650 INFO ]: Finished difference Result 566 states and 1122 transitions. [2018-06-22 00:52:28,650 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:52:28,650 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 00:52:28,650 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:52:28,683 INFO ]: With dead ends: 566 [2018-06-22 00:52:28,683 INFO ]: Without dead ends: 566 [2018-06-22 00:52:28,683 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 [2018-06-22 00:52:28,684 INFO ]: Start minimizeSevpa. Operand 566 states. [2018-06-22 00:52:28,769 INFO ]: Finished minimizeSevpa. Reduced states from 566 to 566. [2018-06-22 00:52:28,770 INFO ]: Start removeUnreachable. Operand 566 states. [2018-06-22 00:52:28,786 INFO ]: Finished removeUnreachable. Reduced from 566 states to 566 states and 1122 transitions. [2018-06-22 00:52:28,787 INFO ]: Start accepts. Automaton has 566 states and 1122 transitions. Word has length 10 [2018-06-22 00:52:28,787 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:52:28,787 INFO ]: Abstraction has 566 states and 1122 transitions. [2018-06-22 00:52:28,787 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:52:28,787 INFO ]: Start isEmpty. Operand 566 states and 1122 transitions. [2018-06-22 00:52:28,790 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 00:52:28,790 INFO ]: Found error trace [2018-06-22 00:52:28,790 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:28,790 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:28,790 INFO ]: Analyzing trace with hash 1330483280, now seen corresponding path program 1 times [2018-06-22 00:52:28,790 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:28,790 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:28,791 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:28,791 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:28,791 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:28,805 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:28,879 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:52:28,880 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:28,880 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:52:28,880 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:52:28,880 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:52:28,880 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:52:28,880 INFO ]: Start difference. First operand 566 states and 1122 transitions. Second operand 4 states. [2018-06-22 00:52:30,761 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:52:30,761 INFO ]: Finished difference Result 706 states and 1401 transitions. [2018-06-22 00:52:30,762 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:52:30,762 INFO ]: Start accepts. Automaton has 4 states. Word has length 10 [2018-06-22 00:52:30,762 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:52:30,796 INFO ]: With dead ends: 706 [2018-06-22 00:52:30,796 INFO ]: Without dead ends: 706 [2018-06-22 00:52:30,796 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 [2018-06-22 00:52:30,797 INFO ]: Start minimizeSevpa. Operand 706 states. [2018-06-22 00:52:30,901 INFO ]: Finished minimizeSevpa. Reduced states from 706 to 706. [2018-06-22 00:52:30,901 INFO ]: Start removeUnreachable. Operand 706 states. [2018-06-22 00:52:30,923 INFO ]: Finished removeUnreachable. Reduced from 706 states to 706 states and 1401 transitions. [2018-06-22 00:52:30,923 INFO ]: Start accepts. Automaton has 706 states and 1401 transitions. Word has length 10 [2018-06-22 00:52:30,924 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:52:30,924 INFO ]: Abstraction has 706 states and 1401 transitions. [2018-06-22 00:52:30,924 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:52:30,925 INFO ]: Start isEmpty. Operand 706 states and 1401 transitions. [2018-06-22 00:52:30,966 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-22 00:52:30,966 INFO ]: Found error trace [2018-06-22 00:52:30,966 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:30,966 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:30,966 INFO ]: Analyzing trace with hash 1986721898, now seen corresponding path program 1 times [2018-06-22 00:52:30,966 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:30,966 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:30,967 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:30,967 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:30,967 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:31,030 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:31,461 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:52:31,461 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:31,461 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:52:31,461 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:52:31,461 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:52:31,461 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:52:31,461 INFO ]: Start difference. First operand 706 states and 1401 transitions. Second operand 8 states. [2018-06-22 00:52:44,752 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:52:44,752 INFO ]: Finished difference Result 2266 states and 14094 transitions. [2018-06-22 00:52:44,753 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-06-22 00:52:44,753 INFO ]: Start accepts. Automaton has 8 states. Word has length 20 [2018-06-22 00:52:44,753 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:52:45,893 INFO ]: With dead ends: 2266 [2018-06-22 00:52:45,893 INFO ]: Without dead ends: 2246 [2018-06-22 00:52:45,894 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2018-06-22 00:52:45,895 INFO ]: Start minimizeSevpa. Operand 2246 states. [2018-06-22 00:52:47,310 INFO ]: Finished minimizeSevpa. Reduced states from 2246 to 1359. [2018-06-22 00:52:47,310 INFO ]: Start removeUnreachable. Operand 1359 states. [2018-06-22 00:52:47,372 INFO ]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 3566 transitions. [2018-06-22 00:52:47,372 INFO ]: Start accepts. Automaton has 1359 states and 3566 transitions. Word has length 20 [2018-06-22 00:52:47,373 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:52:47,373 INFO ]: Abstraction has 1359 states and 3566 transitions. [2018-06-22 00:52:47,373 INFO ]: Interpolant automaton has 8 states. [2018-06-22 00:52:47,373 INFO ]: Start isEmpty. Operand 1359 states and 3566 transitions. [2018-06-22 00:52:47,435 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-22 00:52:47,435 INFO ]: Found error trace [2018-06-22 00:52:47,435 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:52:47,436 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:52:47,436 INFO ]: Analyzing trace with hash -1824700533, now seen corresponding path program 1 times [2018-06-22 00:52:47,436 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:52:47,436 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:52:47,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:47,438 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:52:47,438 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:52:47,473 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:52:47,645 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:52:47,645 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:52:47,645 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:52:47,645 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:52:47,645 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:52:47,645 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:52:47,646 INFO ]: Start difference. First operand 1359 states and 3566 transitions. Second operand 8 states. [2018-06-22 00:53:06,174 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:53:06,174 INFO ]: Finished difference Result 5181 states and 52985 transitions. [2018-06-22 00:53:06,177 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-06-22 00:53:06,177 INFO ]: Start accepts. Automaton has 8 states. Word has length 20 [2018-06-22 00:53:06,177 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:53:13,422 INFO ]: With dead ends: 5181 [2018-06-22 00:53:13,422 INFO ]: Without dead ends: 5156 [2018-06-22 00:53:13,422 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=186, Invalid=626, Unknown=0, NotChecked=0, Total=812 [2018-06-22 00:53:13,424 INFO ]: Start minimizeSevpa. Operand 5156 states. Received shutdown request... [2018-06-22 00:53:18,451 WARN ]: Verification canceled [2018-06-22 00:53:18,456 WARN ]: Timeout [2018-06-22 00:53:18,456 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:53:18 BoogieIcfgContainer [2018-06-22 00:53:18,457 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:53:18,458 INFO ]: Toolchain (without parser) took 58475.50 ms. Allocated memory was 306.2 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 234.7 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 00:53:18,459 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:53:18,460 INFO ]: ChcToBoogie took 112.67 ms. Allocated memory is still 306.2 MB. Free memory was 234.7 MB in the beginning and 230.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:18,460 INFO ]: Boogie Preprocessor took 93.01 ms. Allocated memory is still 306.2 MB. Free memory was 230.7 MB in the beginning and 228.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:18,460 INFO ]: RCFGBuilder took 1677.86 ms. Allocated memory was 306.2 MB in the beginning and 322.4 MB in the end (delta: 16.3 MB). Free memory was 228.7 MB in the beginning and 254.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 3.6 GB. [2018-06-22 00:53:18,461 INFO ]: TraceAbstraction took 56582.75 ms. Allocated memory was 322.4 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 254.6 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-22 00:53:18,467 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 306.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 112.67 ms. Allocated memory is still 306.2 MB. Free memory was 234.7 MB in the beginning and 230.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 93.01 ms. Allocated memory is still 306.2 MB. Free memory was 230.7 MB in the beginning and 228.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1677.86 ms. Allocated memory was 306.2 MB in the beginning and 322.4 MB in the end (delta: 16.3 MB). Free memory was 228.7 MB in the beginning and 254.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 49.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56582.75 ms. Allocated memory was 322.4 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 254.6 MB in the beginning and 1.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 147 locations, 1 error locations. TIMEOUT Result, 56.5s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 47.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3167 SDtfs, 1542 SDslu, 7021 SDs, 0 SdLazy, 22451 SolverSat, 7231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1359occurred in iteration=5, 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: 7.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 887 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.48.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-53-18-489.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/point-location.48.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-53-18-489.csv Completed graceful shutdown