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_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/026-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:23:37,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:23:37,704 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:23:37,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:23:37,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:23:37,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:23:37,719 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:23:37,720 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:23:37,722 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:23:37,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:23:37,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:23:37,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:23:37,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:23:37,725 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:23:37,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:23:37,727 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:23:37,728 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:23:37,730 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:23:37,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:23:37,732 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:23:37,733 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:23:37,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:23:37,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:23:37,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:23:37,737 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:23:37,738 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:23:37,739 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:23:37,739 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:23:37,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:23:37,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:23:37,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:23:37,746 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:23:37,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:23:37,747 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:23:37,747 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:23:37,748 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:23:37,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:23:37,760 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:23:37,761 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:23:37,761 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:23:37,762 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:23:37,762 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:23:37,762 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:23:37,762 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:23:37,763 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:23:37,763 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:23:37,763 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:23:37,763 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:23:37,763 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:23:37,763 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:23:37,764 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:23:37,764 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:23:37,764 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:23:37,764 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:23:37,764 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:23:37,766 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:23:37,766 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:23:37,818 INFO ]: Repository-Root is: /tmp [2018-06-22 11:23:37,836 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:23:37,841 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:23:37,842 INFO ]: Initializing SmtParser... [2018-06-22 11:23:37,843 INFO ]: SmtParser initialized [2018-06-22 11:23:37,843 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/026-horn.smt2 [2018-06-22 11:23:37,845 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 11:23:37,934 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/026-horn.smt2 unknown [2018-06-22 11:23:38,093 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/026-horn.smt2 [2018-06-22 11:23:38,097 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:23:38,107 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:23:38,108 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:23:38,108 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:23:38,108 INFO ]: ChcToBoogie initialized [2018-06-22 11:23:38,111 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,152 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38 Unit [2018-06-22 11:23:38,152 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:23:38,152 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:23:38,152 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:23:38,152 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:23:38,174 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,174 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,182 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,182 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,185 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,186 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,187 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (1/1) ... [2018-06-22 11:23:38,189 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:23:38,189 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:23:38,189 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:23:38,189 INFO ]: RCFGBuilder initialized [2018-06-22 11:23:38,190 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (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 11:23:38,210 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:23:38,210 INFO ]: Found specification of procedure False [2018-06-22 11:23:38,210 INFO ]: Found implementation of procedure False [2018-06-22 11:23:38,210 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:23:38,210 INFO ]: Found specification of procedure INV1 [2018-06-22 11:23:38,210 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:23:38,210 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:23:38,210 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:23:38,210 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 11:23:38,364 INFO ]: Using library mode [2018-06-22 11:23:38,365 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:23:38 BoogieIcfgContainer [2018-06-22 11:23:38,365 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:23:38,373 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:23:38,373 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:23:38,376 INFO ]: TraceAbstraction initialized [2018-06-22 11:23:38,376 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:23:38" (1/3) ... [2018-06-22 11:23:38,377 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18196a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:23:38, skipping insertion in model container [2018-06-22 11:23:38,377 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:23:38" (2/3) ... [2018-06-22 11:23:38,377 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18196a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:23:38, skipping insertion in model container [2018-06-22 11:23:38,377 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:23:38" (3/3) ... [2018-06-22 11:23:38,388 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:23:38,397 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:23:38,408 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:23:38,441 INFO ]: Using default assertion order modulation [2018-06-22 11:23:38,441 INFO ]: Interprodecural is true [2018-06-22 11:23:38,441 INFO ]: Hoare is false [2018-06-22 11:23:38,442 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:23:38,442 INFO ]: Backedges is TWOTRACK [2018-06-22 11:23:38,442 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:23:38,442 INFO ]: Difference is false [2018-06-22 11:23:38,442 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:23:38,442 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:23:38,455 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:23:38,465 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:23:38,465 INFO ]: Found error trace [2018-06-22 11:23:38,465 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:38,466 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:38,469 INFO ]: Analyzing trace with hash -1122768265, now seen corresponding path program 1 times [2018-06-22 11:23:38,470 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:38,471 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:38,502 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:38,502 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:38,502 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:38,533 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:38,655 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:23:38,662 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:38,663 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:38,665 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:38,680 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:38,680 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:38,682 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:23:38,814 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:38,814 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:23:38,815 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:23:38,816 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:23:38,816 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:38,825 INFO ]: With dead ends: 15 [2018-06-22 11:23:38,825 INFO ]: Without dead ends: 15 [2018-06-22 11:23:38,826 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:38,841 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:23:38,859 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:23:38,859 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:23:38,860 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:23:38,861 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:23:38,862 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:38,862 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:23:38,862 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:38,862 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:23:38,864 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:23:38,864 INFO ]: Found error trace [2018-06-22 11:23:38,864 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:38,864 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:38,864 INFO ]: Analyzing trace with hash -2108440928, now seen corresponding path program 1 times [2018-06-22 11:23:38,864 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:38,864 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:38,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:38,865 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:38,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:38,876 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:38,968 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:38,968 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:23:38,968 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 11:23:38,975 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:38,988 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:38,994 INFO ]: Computing forward predicates... [2018-06-22 11:23:39,298 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:39,324 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:23:39,324 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 11:23:39,325 INFO ]: Interpolant automaton has 7 states [2018-06-22 11:23:39,325 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 11:23:39,325 INFO ]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-06-22 11:23:39,325 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 7 states. [2018-06-22 11:23:39,785 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:39,785 INFO ]: Finished difference Result 23 states and 39 transitions. [2018-06-22 11:23:39,785 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:23:39,785 INFO ]: Start accepts. Automaton has 7 states. Word has length 13 [2018-06-22 11:23:39,786 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:39,787 INFO ]: With dead ends: 23 [2018-06-22 11:23:39,787 INFO ]: Without dead ends: 23 [2018-06-22 11:23:39,788 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:23:39,788 INFO ]: Start minimizeSevpa. Operand 23 states. [2018-06-22 11:23:39,795 INFO ]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-06-22 11:23:39,795 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:23:39,796 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2018-06-22 11:23:39,796 INFO ]: Start accepts. Automaton has 17 states and 26 transitions. Word has length 13 [2018-06-22 11:23:39,796 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:39,796 INFO ]: Abstraction has 17 states and 26 transitions. [2018-06-22 11:23:39,796 INFO ]: Interpolant automaton has 7 states. [2018-06-22 11:23:39,796 INFO ]: Start isEmpty. Operand 17 states and 26 transitions. [2018-06-22 11:23:39,797 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:23:39,798 INFO ]: Found error trace [2018-06-22 11:23:39,798 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:39,798 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:39,798 INFO ]: Analyzing trace with hash 1548248505, now seen corresponding path program 1 times [2018-06-22 11:23:39,798 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:39,798 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:39,800 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:39,800 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:39,800 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:39,812 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:39,979 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:23:39,979 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:39,979 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-22 11:23:39,979 INFO ]: Interpolant automaton has 6 states [2018-06-22 11:23:39,979 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 11:23:39,979 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:23:39,980 INFO ]: Start difference. First operand 17 states and 26 transitions. Second operand 6 states. [2018-06-22 11:23:40,028 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:40,028 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:23:40,029 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:23:40,029 INFO ]: Start accepts. Automaton has 6 states. Word has length 13 [2018-06-22 11:23:40,029 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:40,030 INFO ]: With dead ends: 19 [2018-06-22 11:23:40,030 INFO ]: Without dead ends: 19 [2018-06-22 11:23:40,030 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:23:40,031 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:23:40,035 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 11:23:40,035 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:23:40,036 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2018-06-22 11:23:40,036 INFO ]: Start accepts. Automaton has 19 states and 30 transitions. Word has length 13 [2018-06-22 11:23:40,036 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:40,036 INFO ]: Abstraction has 19 states and 30 transitions. [2018-06-22 11:23:40,037 INFO ]: Interpolant automaton has 6 states. [2018-06-22 11:23:40,037 INFO ]: Start isEmpty. Operand 19 states and 30 transitions. [2018-06-22 11:23:40,038 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:40,038 INFO ]: Found error trace [2018-06-22 11:23:40,038 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:40,038 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:40,038 INFO ]: Analyzing trace with hash -58935186, now seen corresponding path program 1 times [2018-06-22 11:23:40,038 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:40,038 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:40,039 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:40,039 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:40,039 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:40,046 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:40,096 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:40,096 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:40,096 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:40,096 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:40,097 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:40,097 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:40,097 INFO ]: Start difference. First operand 19 states and 30 transitions. Second operand 4 states. [2018-06-22 11:23:40,167 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:40,167 INFO ]: Finished difference Result 28 states and 50 transitions. [2018-06-22 11:23:40,167 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:40,167 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:40,168 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:40,169 INFO ]: With dead ends: 28 [2018-06-22 11:23:40,169 INFO ]: Without dead ends: 28 [2018-06-22 11:23:40,169 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:40,169 INFO ]: Start minimizeSevpa. Operand 28 states. [2018-06-22 11:23:40,178 INFO ]: Finished minimizeSevpa. Reduced states from 28 to 26. [2018-06-22 11:23:40,179 INFO ]: Start removeUnreachable. Operand 26 states. [2018-06-22 11:23:40,180 INFO ]: Finished removeUnreachable. Reduced from 26 states to 26 states and 45 transitions. [2018-06-22 11:23:40,180 INFO ]: Start accepts. Automaton has 26 states and 45 transitions. Word has length 17 [2018-06-22 11:23:40,180 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:40,180 INFO ]: Abstraction has 26 states and 45 transitions. [2018-06-22 11:23:40,180 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:40,180 INFO ]: Start isEmpty. Operand 26 states and 45 transitions. [2018-06-22 11:23:40,193 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:40,193 INFO ]: Found error trace [2018-06-22 11:23:40,193 INFO ]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:40,193 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:40,193 INFO ]: Analyzing trace with hash 478196361, now seen corresponding path program 2 times [2018-06-22 11:23:40,193 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:40,193 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:40,194 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:40,194 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:40,194 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:40,208 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:40,402 INFO ]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:23:40,402 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:23:40,402 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:23:40,415 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:23:40,428 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:23:40,429 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:40,432 INFO ]: Computing forward predicates... [2018-06-22 11:23:40,816 INFO ]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:23:40,836 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:23:40,837 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-22 11:23:40,837 INFO ]: Interpolant automaton has 9 states [2018-06-22 11:23:40,837 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 11:23:40,837 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 11:23:40,837 INFO ]: Start difference. First operand 26 states and 45 transitions. Second operand 9 states. [2018-06-22 11:23:41,020 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:41,020 INFO ]: Finished difference Result 38 states and 65 transitions. [2018-06-22 11:23:41,021 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 11:23:41,021 INFO ]: Start accepts. Automaton has 9 states. Word has length 17 [2018-06-22 11:23:41,021 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:41,022 INFO ]: With dead ends: 38 [2018-06-22 11:23:41,022 INFO ]: Without dead ends: 38 [2018-06-22 11:23:41,023 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:23:41,023 INFO ]: Start minimizeSevpa. Operand 38 states. [2018-06-22 11:23:41,033 INFO ]: Finished minimizeSevpa. Reduced states from 38 to 28. [2018-06-22 11:23:41,033 INFO ]: Start removeUnreachable. Operand 28 states. [2018-06-22 11:23:41,034 INFO ]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2018-06-22 11:23:41,034 INFO ]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 17 [2018-06-22 11:23:41,034 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:41,035 INFO ]: Abstraction has 28 states and 47 transitions. [2018-06-22 11:23:41,035 INFO ]: Interpolant automaton has 9 states. [2018-06-22 11:23:41,035 INFO ]: Start isEmpty. Operand 28 states and 47 transitions. [2018-06-22 11:23:41,036 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:41,036 INFO ]: Found error trace [2018-06-22 11:23:41,036 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:41,036 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:41,037 INFO ]: Analyzing trace with hash 1273493346, now seen corresponding path program 1 times [2018-06-22 11:23:41,037 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:41,037 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:41,037 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:41,037 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 11:23:41,037 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:41,043 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:41,064 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:41,064 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:41,065 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:41,065 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:41,065 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:41,065 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:41,065 INFO ]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2018-06-22 11:23:41,135 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:41,135 INFO ]: Finished difference Result 39 states and 60 transitions. [2018-06-22 11:23:41,136 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:41,136 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:41,136 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:41,137 INFO ]: With dead ends: 39 [2018-06-22 11:23:41,137 INFO ]: Without dead ends: 39 [2018-06-22 11:23:41,137 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:41,137 INFO ]: Start minimizeSevpa. Operand 39 states. [2018-06-22 11:23:41,143 INFO ]: Finished minimizeSevpa. Reduced states from 39 to 27. [2018-06-22 11:23:41,143 INFO ]: Start removeUnreachable. Operand 27 states. [2018-06-22 11:23:41,144 INFO ]: Finished removeUnreachable. Reduced from 27 states to 27 states and 41 transitions. [2018-06-22 11:23:41,144 INFO ]: Start accepts. Automaton has 27 states and 41 transitions. Word has length 17 [2018-06-22 11:23:41,145 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:41,145 INFO ]: Abstraction has 27 states and 41 transitions. [2018-06-22 11:23:41,145 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:41,145 INFO ]: Start isEmpty. Operand 27 states and 41 transitions. [2018-06-22 11:23:41,146 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:23:41,146 INFO ]: Found error trace [2018-06-22 11:23:41,146 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:23:41,146 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:23:41,146 INFO ]: Analyzing trace with hash 35866887, now seen corresponding path program 1 times [2018-06-22 11:23:41,146 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:23:41,146 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:23:41,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:41,147 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:23:41,147 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:23:41,152 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:23:41,198 INFO ]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:23:41,198 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:23:41,198 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:23:41,198 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:23:41,198 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:23:41,199 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:23:41,199 INFO ]: Start difference. First operand 27 states and 41 transitions. Second operand 4 states. [2018-06-22 11:23:41,292 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:23:41,292 INFO ]: Finished difference Result 25 states and 38 transitions. [2018-06-22 11:23:41,292 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:23:41,292 INFO ]: Start accepts. Automaton has 4 states. Word has length 17 [2018-06-22 11:23:41,293 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:23:41,293 INFO ]: With dead ends: 25 [2018-06-22 11:23:41,293 INFO ]: Without dead ends: 0 [2018-06-22 11:23:41,293 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:23:41,293 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:23:41,293 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:23:41,293 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:23:41,293 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:23:41,293 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-06-22 11:23:41,293 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:23:41,293 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:23:41,293 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:23:41,293 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:23:41,293 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:23:41,299 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:23:41 BoogieIcfgContainer [2018-06-22 11:23:41,299 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:23:41,300 INFO ]: Toolchain (without parser) took 3202.13 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 263.2 MB in the beginning and 244.3 MB in the end (delta: 18.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:41,302 INFO ]: SmtParser took 0.06 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:23:41,302 INFO ]: ChcToBoogie took 44.13 ms. Allocated memory is still 305.7 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-22 11:23:41,303 INFO ]: Boogie Preprocessor took 36.36 ms. Allocated memory is still 305.7 MB. Free memory was 260.2 MB in the beginning and 259.2 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. [2018-06-22 11:23:41,303 INFO ]: RCFGBuilder took 175.69 ms. Allocated memory is still 305.7 MB. Free memory was 259.2 MB in the beginning and 252.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:41,304 INFO ]: TraceAbstraction took 2926.51 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 252.2 MB in the beginning and 244.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 3.6 GB. [2018-06-22 11:23:41,308 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.06 ms. Allocated memory is still 305.7 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 44.13 ms. Allocated memory is still 305.7 MB. Free memory was 262.2 MB in the beginning and 261.2 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * Boogie Preprocessor took 36.36 ms. Allocated memory is still 305.7 MB. Free memory was 260.2 MB in the beginning and 259.2 MB in the end (delta: 996.2 kB). Peak memory consumption was 996.2 kB. Max. memory is 3.6 GB. * RCFGBuilder took 175.69 ms. Allocated memory is still 305.7 MB. Free memory was 259.2 MB in the beginning and 252.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 2926.51 ms. Allocated memory was 305.7 MB in the beginning and 324.0 MB in the end (delta: 18.4 MB). Free memory was 252.2 MB in the beginning and 244.3 MB in the end (delta: 7.9 MB). Peak memory consumption was 26.2 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 27 SDslu, 196 SDs, 0 SdLazy, 247 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 30 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 4012 SizeOfPredicates, 8 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 42/56 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/026-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-23-41-319.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/026-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-23-41-319.csv Received shutdown request...