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.9.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:37:30,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:37:30,415 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:37:30,426 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:37:30,427 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:37:30,428 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:37:30,429 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:37:30,431 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:37:30,432 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:37:30,433 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:37:30,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:37:30,435 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:37:30,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:37:30,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:37:30,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:37:30,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:37:30,440 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:37:30,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:37:30,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:37:30,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:37:30,447 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:37:30,449 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:37:30,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:37:30,450 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:37:30,451 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:37:30,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:37:30,453 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:37:30,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:37:30,455 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:37:30,455 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:37:30,456 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:37:30,457 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:37:30,457 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:37:30,458 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:37:30,459 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:37:30,459 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:37:30,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:37:30,478 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:37:30,479 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:37:30,479 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:37:30,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:37:30,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:37:30,486 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:37:30,487 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:37:30,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:37:30,487 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:37:30,488 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:37:30,489 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:37:30,490 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:37:30,490 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:37:30,540 INFO ]: Repository-Root is: /tmp [2018-06-22 00:37:30,551 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:37:30,557 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:37:30,558 INFO ]: Initializing SmtParser... [2018-06-22 00:37:30,559 INFO ]: SmtParser initialized [2018-06-22 00:37:30,559 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.9.smt2 [2018-06-22 00:37:30,561 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 00:37:30,657 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.9.smt2 unknown [2018-06-22 00:37:31,637 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/fortune-full.9.smt2 [2018-06-22 00:37:31,642 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:37:31,648 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:37:31,648 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:37:31,648 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:37:31,649 INFO ]: ChcToBoogie initialized [2018-06-22 00:37:31,652 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,841 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31 Unit [2018-06-22 00:37:31,841 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:37:31,842 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:37:31,842 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:37:31,842 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:37:31,867 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,867 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,889 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,889 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,915 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,920 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,926 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (1/1) ... [2018-06-22 00:37:31,935 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:37:31,935 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:37:31,935 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:37:31,935 INFO ]: RCFGBuilder initialized [2018-06-22 00:37:31,936 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (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 00:37:31,952 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:37:31,952 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:37:31,952 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:37:31,952 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:37:31,952 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:37:31,952 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 00:37:34,313 INFO ]: Using library mode [2018-06-22 00:37:34,313 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:37:34 BoogieIcfgContainer [2018-06-22 00:37:34,313 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:37:34,315 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:37:34,315 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:37:34,318 INFO ]: TraceAbstraction initialized [2018-06-22 00:37:34,318 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:37:31" (1/3) ... [2018-06-22 00:37:34,319 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b0c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:37:34, skipping insertion in model container [2018-06-22 00:37:34,319 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:37:31" (2/3) ... [2018-06-22 00:37:34,319 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@758b0c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:37:34, skipping insertion in model container [2018-06-22 00:37:34,319 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:37:34" (3/3) ... [2018-06-22 00:37:34,321 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:37:34,330 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:37:34,339 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:37:34,389 INFO ]: Using default assertion order modulation [2018-06-22 00:37:34,390 INFO ]: Interprodecural is true [2018-06-22 00:37:34,390 INFO ]: Hoare is false [2018-06-22 00:37:34,390 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:37:34,390 INFO ]: Backedges is TWOTRACK [2018-06-22 00:37:34,390 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:37:34,390 INFO ]: Difference is false [2018-06-22 00:37:34,390 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:37:34,390 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:37:34,407 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:37:34,424 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 00:37:34,424 INFO ]: Found error trace [2018-06-22 00:37:34,425 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:34,425 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:34,429 INFO ]: Analyzing trace with hash -1629415875, now seen corresponding path program 1 times [2018-06-22 00:37:34,431 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:34,431 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:34,464 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:34,464 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:34,464 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:34,613 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:35,011 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:37:35,013 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:35,013 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:37:35,015 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:37:35,029 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:37:35,030 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:37:35,033 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:37:37,967 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:37,967 INFO ]: Finished difference Result 285 states and 563 transitions. [2018-06-22 00:37:37,967 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:37:37,968 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 00:37:37,968 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:38,013 INFO ]: With dead ends: 285 [2018-06-22 00:37:38,014 INFO ]: Without dead ends: 275 [2018-06-22 00:37:38,015 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 00:37:38,037 INFO ]: Start minimizeSevpa. Operand 275 states. [2018-06-22 00:37:38,147 INFO ]: Finished minimizeSevpa. Reduced states from 275 to 275. [2018-06-22 00:37:38,149 INFO ]: Start removeUnreachable. Operand 275 states. [2018-06-22 00:37:38,172 INFO ]: Finished removeUnreachable. Reduced from 275 states to 275 states and 545 transitions. [2018-06-22 00:37:38,173 INFO ]: Start accepts. Automaton has 275 states and 545 transitions. Word has length 7 [2018-06-22 00:37:38,174 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:38,174 INFO ]: Abstraction has 275 states and 545 transitions. [2018-06-22 00:37:38,174 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:37:38,174 INFO ]: Start isEmpty. Operand 275 states and 545 transitions. [2018-06-22 00:37:38,181 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:37:38,181 INFO ]: Found error trace [2018-06-22 00:37:38,181 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:38,181 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:38,182 INFO ]: Analyzing trace with hash -1010223555, now seen corresponding path program 1 times [2018-06-22 00:37:38,182 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:38,182 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:38,183 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:38,183 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:38,183 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:38,189 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:38,371 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:37:38,371 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:37:38,371 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:37:38,372 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:37:38,372 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:37:38,373 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:37:38,373 INFO ]: Start difference. First operand 275 states and 545 transitions. Second operand 4 states. [2018-06-22 00:37:39,868 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:37:39,868 INFO ]: Finished difference Result 411 states and 816 transitions. [2018-06-22 00:37:39,868 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:37:39,868 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:37:39,868 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:37:39,897 INFO ]: With dead ends: 411 [2018-06-22 00:37:39,897 INFO ]: Without dead ends: 411 [2018-06-22 00:37:39,898 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 00:37:39,899 INFO ]: Start minimizeSevpa. Operand 411 states. [2018-06-22 00:37:39,980 INFO ]: Finished minimizeSevpa. Reduced states from 411 to 411. [2018-06-22 00:37:39,980 INFO ]: Start removeUnreachable. Operand 411 states. [2018-06-22 00:37:39,999 INFO ]: Finished removeUnreachable. Reduced from 411 states to 411 states and 816 transitions. [2018-06-22 00:37:39,999 INFO ]: Start accepts. Automaton has 411 states and 816 transitions. Word has length 9 [2018-06-22 00:37:39,999 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:37:39,999 INFO ]: Abstraction has 411 states and 816 transitions. [2018-06-22 00:37:39,999 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:37:39,999 INFO ]: Start isEmpty. Operand 411 states and 816 transitions. [2018-06-22 00:37:40,032 INFO ]: Finished isEmpty. Found accepting run of length 19 [2018-06-22 00:37:40,032 INFO ]: Found error trace [2018-06-22 00:37:40,032 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:37:40,032 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:37:40,032 INFO ]: Analyzing trace with hash 215785199, now seen corresponding path program 1 times [2018-06-22 00:37:40,032 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:37:40,032 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:37:40,033 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:40,033 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:40,033 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:37:40,088 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:40,494 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:37:40,494 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 00:37:40,495 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 00:37:40,506 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:37:40,632 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:37:40,644 INFO ]: Computing forward predicates... [2018-06-22 00:37:41,197 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:37:41,217 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 00:37:41,217 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-22 00:37:41,217 INFO ]: Interpolant automaton has 12 states [2018-06-22 00:37:41,217 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 00:37:41,217 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 00:37:41,218 INFO ]: Start difference. First operand 411 states and 816 transitions. Second operand 12 states. [2018-06-22 00:38:28,214 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:38:28,215 INFO ]: Finished difference Result 3905 states and 33847 transitions. [2018-06-22 00:38:28,235 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-06-22 00:38:28,235 INFO ]: Start accepts. Automaton has 12 states. Word has length 18 [2018-06-22 00:38:28,235 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:38:30,965 INFO ]: With dead ends: 3905 [2018-06-22 00:38:30,965 INFO ]: Without dead ends: 3905 [2018-06-22 00:38:30,965 INFO ]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2018-06-22 00:38:30,968 INFO ]: Start minimizeSevpa. Operand 3905 states. Received shutdown request... [2018-06-22 00:38:35,621 WARN ]: Verification canceled [2018-06-22 00:38:35,627 WARN ]: Timeout [2018-06-22 00:38:35,627 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:38:35 BoogieIcfgContainer [2018-06-22 00:38:35,627 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:38:35,628 INFO ]: Toolchain (without parser) took 63986.06 ms. Allocated memory was 322.4 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 289.5 MB in the beginning and 1.1 GB in the end (delta: -859.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-22 00:38:35,630 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.8 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:38:35,630 INFO ]: ChcToBoogie took 193.39 ms. Allocated memory is still 322.4 MB. Free memory was 289.5 MB in the beginning and 282.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 3.6 GB. [2018-06-22 00:38:35,631 INFO ]: Boogie Preprocessor took 92.54 ms. Allocated memory is still 322.4 MB. Free memory was 282.7 MB in the beginning and 278.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 3.6 GB. [2018-06-22 00:38:35,631 INFO ]: RCFGBuilder took 2378.22 ms. Allocated memory was 322.4 MB in the beginning and 356.5 MB in the end (delta: 34.1 MB). Free memory was 278.1 MB in the beginning and 250.4 MB in the end (delta: 27.7 MB). Peak memory consumption was 108.3 MB. Max. memory is 3.6 GB. [2018-06-22 00:38:35,636 INFO ]: TraceAbstraction took 61312.23 ms. Allocated memory was 356.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 249.7 MB in the beginning and 1.2 GB in the end (delta: -908.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 00:38:35,638 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 307.8 MB. Free memory is still 270.2 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 193.39 ms. Allocated memory is still 322.4 MB. Free memory was 289.5 MB in the beginning and 282.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 92.54 ms. Allocated memory is still 322.4 MB. Free memory was 282.7 MB in the beginning and 278.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2378.22 ms. Allocated memory was 322.4 MB in the beginning and 356.5 MB in the end (delta: 34.1 MB). Free memory was 278.1 MB in the beginning and 250.4 MB in the end (delta: 27.7 MB). Peak memory consumption was 108.3 MB. Max. memory is 3.6 GB. * TraceAbstraction took 61312.23 ms. Allocated memory was 356.5 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 249.7 MB in the beginning and 1.2 GB in the end (delta: -908.8 MB). Peak memory consumption was 1.3 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, 146 locations, 1 error locations. TIMEOUT Result, 61.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 54.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6780 SDtfs, 1276 SDslu, 29914 SDs, 0 SdLazy, 36938 SolverSat, 4498 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.8s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1536 SizeOfPredicates, 6 NumberOfNonLiveVariables, 909 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/10 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.9.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-38-35-650.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/fortune-full.9.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-38-35-650.csv Completed graceful shutdown