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.11.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:34:18,028 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:34:18,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:34:18,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:34:18,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:34:18,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:34:18,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:34:18,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:34:18,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:34:18,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:34:18,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:34:18,055 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:34:18,055 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:34:18,056 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:34:18,057 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:34:18,060 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:34:18,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:34:18,071 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:34:18,073 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:34:18,074 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:34:18,075 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:34:18,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:34:18,078 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:34:18,078 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:34:18,079 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:34:18,080 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:34:18,080 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:34:18,081 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:34:18,082 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:34:18,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:34:18,083 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:34:18,083 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:34:18,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:34:18,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:34:18,085 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:34:18,085 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:34:18,098 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:34:18,098 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:34:18,098 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:34:18,098 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:34:18,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:34:18,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:34:18,100 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:34:18,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:34:18,101 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:34:18,101 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:34:18,101 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:34:18,101 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:34:18,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:34:18,102 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:34:18,102 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:34:18,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:34:18,102 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:34:18,103 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:34:18,104 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:34:18,158 INFO ]: Repository-Root is: /tmp [2018-06-22 00:34:18,174 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:34:18,180 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:34:18,181 INFO ]: Initializing SmtParser... [2018-06-22 00:34:18,182 INFO ]: SmtParser initialized [2018-06-22 00:34:18,182 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 [2018-06-22 00:34:18,183 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 00:34:18,267 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 unknown [2018-06-22 00:34:19,240 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.11.smt2 [2018-06-22 00:34:19,247 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:34:19,253 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:34:19,253 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:34:19,253 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:34:19,253 INFO ]: ChcToBoogie initialized [2018-06-22 00:34:19,257 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,451 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19 Unit [2018-06-22 00:34:19,451 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:34:19,454 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:34:19,454 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:34:19,454 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:34:19,474 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,474 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,493 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,494 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,520 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,524 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,531 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (1/1) ... [2018-06-22 00:34:19,539 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:34:19,540 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:34:19,540 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:34:19,540 INFO ]: RCFGBuilder initialized [2018-06-22 00:34:19,541 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (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 00:34:19,561 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:34:19,561 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:34:19,561 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:34:19,561 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:34:19,561 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:34:19,561 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 00:34:22,205 INFO ]: Using library mode [2018-06-22 00:34:22,205 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:34:22 BoogieIcfgContainer [2018-06-22 00:34:22,205 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:34:22,207 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:34:22,207 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:34:22,210 INFO ]: TraceAbstraction initialized [2018-06-22 00:34:22,210 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:34:19" (1/3) ... [2018-06-22 00:34:22,211 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c984966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:34:22, skipping insertion in model container [2018-06-22 00:34:22,211 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:34:19" (2/3) ... [2018-06-22 00:34:22,212 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c984966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:34:22, skipping insertion in model container [2018-06-22 00:34:22,212 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:34:22" (3/3) ... [2018-06-22 00:34:22,213 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:34:22,223 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:34:22,232 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:34:22,285 INFO ]: Using default assertion order modulation [2018-06-22 00:34:22,286 INFO ]: Interprodecural is true [2018-06-22 00:34:22,286 INFO ]: Hoare is false [2018-06-22 00:34:22,286 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:34:22,286 INFO ]: Backedges is TWOTRACK [2018-06-22 00:34:22,286 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:34:22,286 INFO ]: Difference is false [2018-06-22 00:34:22,286 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:34:22,286 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:34:22,313 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:34:22,325 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 00:34:22,325 INFO ]: Found error trace [2018-06-22 00:34:22,327 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:34:22,327 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:34:22,332 INFO ]: Analyzing trace with hash 2948026, now seen corresponding path program 1 times [2018-06-22 00:34:22,334 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:34:22,334 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:34:22,372 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:22,372 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:34:22,372 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:22,419 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:34:22,460 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:34:22,462 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:34:22,463 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-22 00:34:22,465 INFO ]: Interpolant automaton has 2 states [2018-06-22 00:34:22,482 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-22 00:34:22,483 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 00:34:22,487 INFO ]: Start difference. First operand 146 states. Second operand 2 states. [2018-06-22 00:34:22,575 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:34:22,575 INFO ]: Finished difference Result 144 states and 282 transitions. [2018-06-22 00:34:22,575 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-22 00:34:22,576 INFO ]: Start accepts. Automaton has 2 states. Word has length 7 [2018-06-22 00:34:22,577 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:34:22,612 INFO ]: With dead ends: 144 [2018-06-22 00:34:22,613 INFO ]: Without dead ends: 139 [2018-06-22 00:34:22,614 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-22 00:34:22,632 INFO ]: Start minimizeSevpa. Operand 139 states. [2018-06-22 00:34:22,730 INFO ]: Finished minimizeSevpa. Reduced states from 139 to 139. [2018-06-22 00:34:22,735 INFO ]: Start removeUnreachable. Operand 139 states. [2018-06-22 00:34:22,750 INFO ]: Finished removeUnreachable. Reduced from 139 states to 139 states and 273 transitions. [2018-06-22 00:34:22,751 INFO ]: Start accepts. Automaton has 139 states and 273 transitions. Word has length 7 [2018-06-22 00:34:22,752 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:34:22,752 INFO ]: Abstraction has 139 states and 273 transitions. [2018-06-22 00:34:22,752 INFO ]: Interpolant automaton has 2 states. [2018-06-22 00:34:22,752 INFO ]: Start isEmpty. Operand 139 states and 273 transitions. [2018-06-22 00:34:22,756 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:34:22,756 INFO ]: Found error trace [2018-06-22 00:34:22,756 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:34:22,757 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:34:22,757 INFO ]: Analyzing trace with hash 188995660, now seen corresponding path program 1 times [2018-06-22 00:34:22,757 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:34:22,757 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:34:22,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:22,758 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:34:22,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:22,778 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:34:23,141 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:34:23,141 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:34:23,141 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:34:23,142 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:34:23,143 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:34:23,143 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:34:23,143 INFO ]: Start difference. First operand 139 states and 273 transitions. Second operand 4 states. [2018-06-22 00:34:26,193 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:34:26,193 INFO ]: Finished difference Result 275 states and 543 transitions. [2018-06-22 00:34:26,218 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:34:26,218 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:34:26,218 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:34:26,241 INFO ]: With dead ends: 275 [2018-06-22 00:34:26,241 INFO ]: Without dead ends: 275 [2018-06-22 00:34:26,242 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 00:34:26,243 INFO ]: Start minimizeSevpa. Operand 275 states. [2018-06-22 00:34:26,311 INFO ]: Finished minimizeSevpa. Reduced states from 275 to 275. [2018-06-22 00:34:26,311 INFO ]: Start removeUnreachable. Operand 275 states. [2018-06-22 00:34:26,326 INFO ]: Finished removeUnreachable. Reduced from 275 states to 275 states and 543 transitions. [2018-06-22 00:34:26,326 INFO ]: Start accepts. Automaton has 275 states and 543 transitions. Word has length 9 [2018-06-22 00:34:26,327 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:34:26,327 INFO ]: Abstraction has 275 states and 543 transitions. [2018-06-22 00:34:26,327 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:34:26,327 INFO ]: Start isEmpty. Operand 275 states and 543 transitions. [2018-06-22 00:34:26,329 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:34:26,329 INFO ]: Found error trace [2018-06-22 00:34:26,329 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:34:26,329 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:34:26,329 INFO ]: Analyzing trace with hash 59702720, now seen corresponding path program 1 times [2018-06-22 00:34:26,329 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:34:26,329 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:34:26,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:26,330 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:34:26,330 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:26,369 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:34:26,594 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:34:26,594 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:34:26,594 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:34:26,594 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:34:26,594 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:34:26,594 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:34:26,595 INFO ]: Start difference. First operand 275 states and 543 transitions. Second operand 4 states. [2018-06-22 00:34:28,175 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:34:28,175 INFO ]: Finished difference Result 411 states and 813 transitions. [2018-06-22 00:34:28,175 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:34:28,175 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:34:28,176 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:34:28,199 INFO ]: With dead ends: 411 [2018-06-22 00:34:28,199 INFO ]: Without dead ends: 411 [2018-06-22 00:34:28,199 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 00:34:28,200 INFO ]: Start minimizeSevpa. Operand 411 states. [2018-06-22 00:34:28,281 INFO ]: Finished minimizeSevpa. Reduced states from 411 to 411. [2018-06-22 00:34:28,281 INFO ]: Start removeUnreachable. Operand 411 states. [2018-06-22 00:34:28,303 INFO ]: Finished removeUnreachable. Reduced from 411 states to 411 states and 813 transitions. [2018-06-22 00:34:28,304 INFO ]: Start accepts. Automaton has 411 states and 813 transitions. Word has length 9 [2018-06-22 00:34:28,304 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:34:28,304 INFO ]: Abstraction has 411 states and 813 transitions. [2018-06-22 00:34:28,304 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:34:28,304 INFO ]: Start isEmpty. Operand 411 states and 813 transitions. [2018-06-22 00:34:28,337 INFO ]: Finished isEmpty. Found accepting run of length 21 [2018-06-22 00:34:28,337 INFO ]: Found error trace [2018-06-22 00:34:28,337 INFO ]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:34:28,337 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:34:28,337 INFO ]: Analyzing trace with hash -1550322338, now seen corresponding path program 1 times [2018-06-22 00:34:28,337 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:34:28,337 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:34:28,338 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:28,338 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:34:28,338 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:34:28,404 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:34:28,656 INFO ]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 00:34:28,657 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 00:34:28,657 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 00:34:28,675 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:34:28,804 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:34:28,815 INFO ]: Computing forward predicates... [2018-06-22 00:34:29,394 INFO ]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-06-22 00:34:29,417 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 00:34:29,417 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-22 00:34:29,417 INFO ]: Interpolant automaton has 12 states [2018-06-22 00:34:29,417 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 00:34:29,418 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 00:34:29,418 INFO ]: Start difference. First operand 411 states and 813 transitions. Second operand 12 states. Received shutdown request... [2018-06-22 00:35:22,336 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-06-22 00:35:22,336 WARN ]: Verification canceled [2018-06-22 00:35:22,343 WARN ]: Timeout [2018-06-22 00:35:22,344 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:35:22 BoogieIcfgContainer [2018-06-22 00:35:22,344 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:35:22,345 INFO ]: Toolchain (without parser) took 63097.93 ms. Allocated memory was 305.7 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 188.3 MB in the beginning and 782.2 MB in the end (delta: -593.8 MB). Peak memory consumption was 496.1 MB. Max. memory is 3.6 GB. [2018-06-22 00:35:22,347 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 305.7 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:35:22,347 INFO ]: ChcToBoogie took 200.17 ms. Allocated memory was 305.7 MB in the beginning and 319.3 MB in the end (delta: 13.6 MB). Free memory was 188.3 MB in the beginning and 286.8 MB in the end (delta: -98.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 3.6 GB. [2018-06-22 00:35:22,359 INFO ]: Boogie Preprocessor took 85.47 ms. Allocated memory is still 319.3 MB. Free memory was 286.8 MB in the beginning and 282.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 3.6 GB. [2018-06-22 00:35:22,359 INFO ]: RCFGBuilder took 2665.62 ms. Allocated memory was 319.3 MB in the beginning and 352.8 MB in the end (delta: 33.6 MB). Free memory was 282.2 MB in the beginning and 253.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 3.6 GB. [2018-06-22 00:35:22,360 INFO ]: TraceAbstraction took 60137.57 ms. Allocated memory was 352.8 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 253.0 MB in the beginning and 782.2 MB in the end (delta: -529.2 MB). Peak memory consumption was 513.6 MB. Max. memory is 3.6 GB. [2018-06-22 00:35:22,362 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 305.7 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 200.17 ms. Allocated memory was 305.7 MB in the beginning and 319.3 MB in the end (delta: 13.6 MB). Free memory was 188.3 MB in the beginning and 286.8 MB in the end (delta: -98.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 85.47 ms. Allocated memory is still 319.3 MB. Free memory was 286.8 MB in the beginning and 282.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2665.62 ms. Allocated memory was 319.3 MB in the beginning and 352.8 MB in the end (delta: 33.6 MB). Free memory was 282.2 MB in the beginning and 253.0 MB in the end (delta: 29.2 MB). Peak memory consumption was 115.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 60137.57 ms. Allocated memory was 352.8 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 253.0 MB in the beginning and 782.2 MB in the end (delta: -529.2 MB). Peak memory consumption was 513.6 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 (411states) and interpolant automaton (currently 49 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (3587 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. TIMEOUT Result, 60.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 57.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4134 SDtfs, 1008 SDslu, 16156 SDs, 0 SdLazy, 49804 SolverSat, 4922 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=3, 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: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 2066 SizeOfPredicates, 6 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 12/14 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.11.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-35-22-379.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.11.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-35-22-379.csv Completed graceful shutdown