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/fortune-full.14.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:35:56,121 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:35:56,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:35:56,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:35:56,137 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:35:56,138 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:35:56,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:35:56,144 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:35:56,145 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:35:56,147 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:35:56,148 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:35:56,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:35:56,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:35:56,150 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:35:56,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:35:56,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:35:56,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:35:56,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:35:56,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:35:56,173 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:35:56,174 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:35:56,176 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:35:56,176 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:35:56,177 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:35:56,177 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:35:56,178 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:35:56,182 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:35:56,183 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:35:56,184 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:35:56,184 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:35:56,185 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:35:56,185 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:35:56,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:35:56,186 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:35:56,187 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:35:56,187 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:35:56,200 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:35:56,200 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:35:56,200 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:35:56,201 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:35:56,202 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:35:56,202 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:35:56,202 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:35:56,202 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:35:56,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:35:56,203 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:35:56,203 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:35:56,203 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:35:56,203 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:35:56,203 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:35:56,204 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:35:56,206 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:35:56,206 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:35:56,207 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:35:56,208 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:35:56,248 INFO ]: Repository-Root is: /tmp [2018-06-22 00:35:56,263 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:35:56,266 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:35:56,267 INFO ]: Initializing SmtParser... [2018-06-22 00:35:56,268 INFO ]: SmtParser initialized [2018-06-22 00:35:56,268 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.14.smt2 [2018-06-22 00:35:56,270 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 00:35:56,358 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.14.smt2 unknown [2018-06-22 00:35:57,222 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.14.smt2 [2018-06-22 00:35:57,235 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:35:57,251 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:35:57,251 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:35:57,251 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:35:57,251 INFO ]: ChcToBoogie initialized [2018-06-22 00:35:57,254 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,397 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57 Unit [2018-06-22 00:35:57,397 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:35:57,398 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:35:57,398 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:35:57,398 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:35:57,419 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,419 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,440 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,440 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,464 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,472 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,479 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (1/1) ... [2018-06-22 00:35:57,498 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:35:57,499 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:35:57,499 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:35:57,499 INFO ]: RCFGBuilder initialized [2018-06-22 00:35:57,500 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:35:57,514 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:35:57,514 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:35:57,514 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:35:57,514 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:35:57,514 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:35:57,514 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 00:35:59,699 INFO ]: Using library mode [2018-06-22 00:35:59,699 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:35:59 BoogieIcfgContainer [2018-06-22 00:35:59,699 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:35:59,701 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:35:59,701 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:35:59,704 INFO ]: TraceAbstraction initialized [2018-06-22 00:35:59,704 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:35:57" (1/3) ... [2018-06-22 00:35:59,705 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d763a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:35:59, skipping insertion in model container [2018-06-22 00:35:59,705 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:35:57" (2/3) ... [2018-06-22 00:35:59,705 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d763a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:35:59, skipping insertion in model container [2018-06-22 00:35:59,705 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:35:59" (3/3) ... [2018-06-22 00:35:59,707 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:35:59,715 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:35:59,723 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:35:59,762 INFO ]: Using default assertion order modulation [2018-06-22 00:35:59,763 INFO ]: Interprodecural is true [2018-06-22 00:35:59,763 INFO ]: Hoare is false [2018-06-22 00:35:59,763 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:35:59,763 INFO ]: Backedges is TWOTRACK [2018-06-22 00:35:59,763 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:35:59,763 INFO ]: Difference is false [2018-06-22 00:35:59,763 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:35:59,763 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:35:59,783 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:35:59,806 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 00:35:59,806 INFO ]: Found error trace [2018-06-22 00:35:59,810 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:35:59,810 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:35:59,814 INFO ]: Analyzing trace with hash -1850328844, now seen corresponding path program 1 times [2018-06-22 00:35:59,816 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:35:59,816 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:35:59,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:35:59,851 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:35:59,851 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:35:59,920 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:00,185 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:36:00,189 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:00,189 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:36:00,191 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:36:00,206 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:36:00,206 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:36:00,209 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:36:03,023 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:03,023 INFO ]: Finished difference Result 285 states and 559 transitions. [2018-06-22 00:36:03,024 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:36:03,025 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 00:36:03,025 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:03,074 INFO ]: With dead ends: 285 [2018-06-22 00:36:03,074 INFO ]: Without dead ends: 283 [2018-06-22 00:36:03,076 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 00:36:03,094 INFO ]: Start minimizeSevpa. Operand 283 states. [2018-06-22 00:36:03,214 INFO ]: Finished minimizeSevpa. Reduced states from 283 to 283. [2018-06-22 00:36:03,216 INFO ]: Start removeUnreachable. Operand 283 states. [2018-06-22 00:36:03,246 INFO ]: Finished removeUnreachable. Reduced from 283 states to 283 states and 557 transitions. [2018-06-22 00:36:03,248 INFO ]: Start accepts. Automaton has 283 states and 557 transitions. Word has length 8 [2018-06-22 00:36:03,249 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:03,249 INFO ]: Abstraction has 283 states and 557 transitions. [2018-06-22 00:36:03,249 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:36:03,249 INFO ]: Start isEmpty. Operand 283 states and 557 transitions. [2018-06-22 00:36:03,260 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:36:03,260 INFO ]: Found error trace [2018-06-22 00:36:03,260 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:03,260 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:03,261 INFO ]: Analyzing trace with hash -1918095994, now seen corresponding path program 1 times [2018-06-22 00:36:03,261 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:03,261 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:03,261 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:03,261 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:03,261 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:03,284 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:03,500 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:36:03,500 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:03,500 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:36:03,502 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:36:03,502 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:36:03,502 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:36:03,502 INFO ]: Start difference. First operand 283 states and 557 transitions. Second operand 4 states. [2018-06-22 00:36:05,199 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:05,199 INFO ]: Finished difference Result 423 states and 834 transitions. [2018-06-22 00:36:05,257 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:36:05,257 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:36:05,257 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:05,285 INFO ]: With dead ends: 423 [2018-06-22 00:36:05,285 INFO ]: Without dead ends: 423 [2018-06-22 00:36:05,286 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:36:05,286 INFO ]: Start minimizeSevpa. Operand 423 states. [2018-06-22 00:36:05,346 INFO ]: Finished minimizeSevpa. Reduced states from 423 to 423. [2018-06-22 00:36:05,346 INFO ]: Start removeUnreachable. Operand 423 states. [2018-06-22 00:36:05,363 INFO ]: Finished removeUnreachable. Reduced from 423 states to 423 states and 834 transitions. [2018-06-22 00:36:05,363 INFO ]: Start accepts. Automaton has 423 states and 834 transitions. Word has length 9 [2018-06-22 00:36:05,363 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:05,363 INFO ]: Abstraction has 423 states and 834 transitions. [2018-06-22 00:36:05,363 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:36:05,363 INFO ]: Start isEmpty. Operand 423 states and 834 transitions. [2018-06-22 00:36:05,366 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:36:05,366 INFO ]: Found error trace [2018-06-22 00:36:05,366 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:05,366 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:05,366 INFO ]: Analyzing trace with hash -1982891419, now seen corresponding path program 1 times [2018-06-22 00:36:05,366 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:05,366 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:05,367 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:05,367 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:05,367 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:05,393 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:05,598 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:36:05,598 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:05,598 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:36:05,598 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:36:05,598 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:36:05,598 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:36:05,598 INFO ]: Start difference. First operand 423 states and 834 transitions. Second operand 4 states. [2018-06-22 00:36:06,887 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:06,887 INFO ]: Finished difference Result 563 states and 1111 transitions. [2018-06-22 00:36:06,887 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:36:06,887 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:36:06,887 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:06,928 INFO ]: With dead ends: 563 [2018-06-22 00:36:06,928 INFO ]: Without dead ends: 563 [2018-06-22 00:36:06,929 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:36:06,929 INFO ]: Start minimizeSevpa. Operand 563 states. [2018-06-22 00:36:07,022 INFO ]: Finished minimizeSevpa. Reduced states from 563 to 563. [2018-06-22 00:36:07,022 INFO ]: Start removeUnreachable. Operand 563 states. [2018-06-22 00:36:07,040 INFO ]: Finished removeUnreachable. Reduced from 563 states to 563 states and 1111 transitions. [2018-06-22 00:36:07,040 INFO ]: Start accepts. Automaton has 563 states and 1111 transitions. Word has length 9 [2018-06-22 00:36:07,040 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:07,040 INFO ]: Abstraction has 563 states and 1111 transitions. [2018-06-22 00:36:07,040 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:36:07,040 INFO ]: Start isEmpty. Operand 563 states and 1111 transitions. [2018-06-22 00:36:07,075 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:36:07,075 INFO ]: Found error trace [2018-06-22 00:36:07,075 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:07,075 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:07,076 INFO ]: Analyzing trace with hash 251409782, now seen corresponding path program 1 times [2018-06-22 00:36:07,076 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:07,076 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:07,076 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:07,076 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:07,076 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:07,157 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:07,389 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:36:07,390 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:07,390 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:36:07,390 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:36:07,390 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:36:07,390 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:36:07,390 INFO ]: Start difference. First operand 563 states and 1111 transitions. Second operand 8 states. [2018-06-22 00:36:19,857 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:19,857 INFO ]: Finished difference Result 2096 states and 12277 transitions. [2018-06-22 00:36:19,857 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:36:19,857 INFO ]: Start accepts. Automaton has 8 states. Word has length 19 [2018-06-22 00:36:19,857 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:20,698 INFO ]: With dead ends: 2096 [2018-06-22 00:36:20,698 INFO ]: Without dead ends: 2093 [2018-06-22 00:36:20,699 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-06-22 00:36:20,700 INFO ]: Start minimizeSevpa. Operand 2093 states. [2018-06-22 00:36:21,781 INFO ]: Finished minimizeSevpa. Reduced states from 2093 to 1098. [2018-06-22 00:36:21,781 INFO ]: Start removeUnreachable. Operand 1098 states. [2018-06-22 00:36:21,838 INFO ]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 2423 transitions. [2018-06-22 00:36:21,838 INFO ]: Start accepts. Automaton has 1098 states and 2423 transitions. Word has length 19 [2018-06-22 00:36:21,838 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:21,838 INFO ]: Abstraction has 1098 states and 2423 transitions. [2018-06-22 00:36:21,838 INFO ]: Interpolant automaton has 8 states. [2018-06-22 00:36:21,838 INFO ]: Start isEmpty. Operand 1098 states and 2423 transitions. [2018-06-22 00:36:21,888 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:36:21,888 INFO ]: Found error trace [2018-06-22 00:36:21,888 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:21,888 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:21,889 INFO ]: Analyzing trace with hash 251499155, now seen corresponding path program 1 times [2018-06-22 00:36:21,889 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:21,889 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:21,890 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:21,890 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:21,890 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:21,941 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:22,713 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:36:22,713 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:22,713 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:36:22,713 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:36:22,713 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:36:22,713 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:36:22,713 INFO ]: Start difference. First operand 1098 states and 2423 transitions. Second operand 8 states. [2018-06-22 00:36:38,120 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:36:38,120 INFO ]: Finished difference Result 5034 states and 36426 transitions. [2018-06-22 00:36:38,120 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-06-22 00:36:38,120 INFO ]: Start accepts. Automaton has 8 states. Word has length 19 [2018-06-22 00:36:38,120 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:36:41,784 INFO ]: With dead ends: 5034 [2018-06-22 00:36:41,784 INFO ]: Without dead ends: 5034 [2018-06-22 00:36:41,784 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2018-06-22 00:36:41,787 INFO ]: Start minimizeSevpa. Operand 5034 states. [2018-06-22 00:36:44,722 INFO ]: Finished minimizeSevpa. Reduced states from 5034 to 2499. [2018-06-22 00:36:44,722 INFO ]: Start removeUnreachable. Operand 2499 states. [2018-06-22 00:36:48,231 INFO ]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 7834 transitions. [2018-06-22 00:36:48,231 INFO ]: Start accepts. Automaton has 2499 states and 7834 transitions. Word has length 19 [2018-06-22 00:36:48,231 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:36:48,231 INFO ]: Abstraction has 2499 states and 7834 transitions. [2018-06-22 00:36:48,231 INFO ]: Interpolant automaton has 8 states. [2018-06-22 00:36:48,231 INFO ]: Start isEmpty. Operand 2499 states and 7834 transitions. [2018-06-22 00:36:48,322 INFO ]: Finished isEmpty. Found accepting run of length 20 [2018-06-22 00:36:48,322 INFO ]: Found error trace [2018-06-22 00:36:48,322 INFO ]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:36:48,322 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:36:48,322 INFO ]: Analyzing trace with hash 251856647, now seen corresponding path program 1 times [2018-06-22 00:36:48,322 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:36:48,322 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:36:48,323 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:48,323 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:36:48,323 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:36:48,365 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:36:48,760 INFO ]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:36:48,760 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:36:48,760 INFO ]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-06-22 00:36:48,760 INFO ]: Interpolant automaton has 8 states [2018-06-22 00:36:48,760 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 00:36:48,760 INFO ]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-06-22 00:36:48,760 INFO ]: Start difference. First operand 2499 states and 7834 transitions. Second operand 8 states. Received shutdown request... [2018-06-22 00:36:53,330 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-06-22 00:36:53,375 WARN ]: Verification canceled [2018-06-22 00:36:53,380 WARN ]: Timeout [2018-06-22 00:36:53,380 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:36:53 BoogieIcfgContainer [2018-06-22 00:36:53,380 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:36:53,381 INFO ]: Toolchain (without parser) took 56145.49 ms. Allocated memory was 306.2 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 205.7 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 700.2 MB. Max. memory is 3.6 GB. [2018-06-22 00:36:53,386 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 00:36:53,386 INFO ]: ChcToBoogie took 146.66 ms. Allocated memory is still 306.2 MB. Free memory was 205.7 MB in the beginning and 199.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:36:53,386 INFO ]: Boogie Preprocessor took 100.51 ms. Allocated memory is still 306.2 MB. Free memory was 199.8 MB in the beginning and 196.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:36:53,387 INFO ]: RCFGBuilder took 2200.33 ms. Allocated memory was 306.2 MB in the beginning and 354.9 MB in the end (delta: 48.8 MB). Free memory was 196.8 MB in the beginning and 306.2 MB in the end (delta: -109.5 MB). Peak memory consumption was 42.1 MB. Max. memory is 3.6 GB. [2018-06-22 00:36:53,387 INFO ]: TraceAbstraction took 53679.50 ms. Allocated memory was 354.9 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 306.2 MB in the beginning and 1.2 GB in the end (delta: -913.7 MB). Peak memory consumption was 751.9 MB. Max. memory is 3.6 GB. [2018-06-22 00:36:53,391 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 146.66 ms. Allocated memory is still 306.2 MB. Free memory was 205.7 MB in the beginning and 199.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 100.51 ms. Allocated memory is still 306.2 MB. Free memory was 199.8 MB in the beginning and 196.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2200.33 ms. Allocated memory was 306.2 MB in the beginning and 354.9 MB in the end (delta: 48.8 MB). Free memory was 196.8 MB in the beginning and 306.2 MB in the end (delta: -109.5 MB). Peak memory consumption was 42.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 53679.50 ms. Allocated memory was 354.9 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 306.2 MB in the beginning and 1.2 GB in the end (delta: -913.7 MB). Peak memory consumption was 751.9 MB. 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 BasicCegarLoop was constructing difference of abstraction (2499states) and interpolant automaton (currently 18 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (2739 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. TIMEOUT Result, 53.6s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 42.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5048 SDtfs, 1592 SDslu, 13594 SDs, 0 SdLazy, 21725 SolverSat, 4332 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2499occurred 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: 7.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 3530 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 12/12 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/fortune-full.14.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-36-53-410.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.14.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-36-53-410.csv Completed graceful shutdown