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/hopv/lia/mochi/mc91_99.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 01:50:27,620 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 01:50:27,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 01:50:27,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 01:50:27,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 01:50:27,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 01:50:27,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 01:50:27,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 01:50:27,654 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 01:50:27,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 01:50:27,657 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 01:50:27,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 01:50:27,658 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 01:50:27,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 01:50:27,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 01:50:27,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 01:50:27,673 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 01:50:27,675 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 01:50:27,676 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 01:50:27,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 01:50:27,678 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 01:50:27,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 01:50:27,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 01:50:27,682 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 01:50:27,682 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 01:50:27,683 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 01:50:27,684 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 01:50:27,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 01:50:27,686 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 01:50:27,686 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 01:50:27,687 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 01:50:27,688 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 01:50:27,688 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 01:50:27,688 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 01:50:27,689 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 01:50:27,689 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 01:50:27,702 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 01:50:27,703 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 01:50:27,703 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 01:50:27,703 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 01:50:27,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 01:50:27,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 01:50:27,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 01:50:27,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 01:50:27,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:50:27,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 01:50:27,705 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 01:50:27,705 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 01:50:27,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 01:50:27,706 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 01:50:27,706 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 01:50:27,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 01:50:27,706 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 01:50:27,708 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 01:50:27,708 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 01:50:27,757 INFO ]: Repository-Root is: /tmp [2018-06-22 01:50:27,775 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 01:50:27,780 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 01:50:27,782 INFO ]: Initializing SmtParser... [2018-06-22 01:50:27,782 INFO ]: SmtParser initialized [2018-06-22 01:50:27,783 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/hopv/lia/mochi/mc91_99.smt2 [2018-06-22 01:50:27,784 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 01:50:27,880 INFO ]: Executing SMT file /storage/chc-comp/hopv/lia/mochi/mc91_99.smt2 unknown [2018-06-22 01:50:28,000 INFO ]: Succesfully executed SMT file /storage/chc-comp/hopv/lia/mochi/mc91_99.smt2 [2018-06-22 01:50:28,005 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 01:50:28,011 INFO ]: Walking toolchain with 4 elements. [2018-06-22 01:50:28,015 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 01:50:28,015 INFO ]: Initializing ChcToBoogie... [2018-06-22 01:50:28,016 INFO ]: ChcToBoogie initialized [2018-06-22 01:50:28,019 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,077 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28 Unit [2018-06-22 01:50:28,077 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 01:50:28,077 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 01:50:28,077 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 01:50:28,078 INFO ]: Boogie Preprocessor initialized [2018-06-22 01:50:28,099 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,100 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,105 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,105 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,108 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,111 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,111 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... [2018-06-22 01:50:28,113 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 01:50:28,114 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 01:50:28,114 INFO ]: Initializing RCFGBuilder... [2018-06-22 01:50:28,114 INFO ]: RCFGBuilder initialized [2018-06-22 01:50:28,115 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 01:50:28,137 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 01:50:28,137 INFO ]: Found specification of procedure gotoProc [2018-06-22 01:50:28,137 INFO ]: Found implementation of procedure gotoProc [2018-06-22 01:50:28,138 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 01:50:28,138 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 01:50:28,138 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 01:50:28,449 INFO ]: Using library mode [2018-06-22 01:50:28,449 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:50:28 BoogieIcfgContainer [2018-06-22 01:50:28,449 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 01:50:28,451 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 01:50:28,451 INFO ]: Initializing TraceAbstraction... [2018-06-22 01:50:28,454 INFO ]: TraceAbstraction initialized [2018-06-22 01:50:28,454 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:50:28" (1/3) ... [2018-06-22 01:50:28,455 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ce886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:50:28, skipping insertion in model container [2018-06-22 01:50:28,455 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:50:28" (2/3) ... [2018-06-22 01:50:28,455 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748ce886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:50:28, skipping insertion in model container [2018-06-22 01:50:28,455 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:50:28" (3/3) ... [2018-06-22 01:50:28,457 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 01:50:28,467 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 01:50:28,475 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 01:50:28,522 INFO ]: Using default assertion order modulation [2018-06-22 01:50:28,522 INFO ]: Interprodecural is true [2018-06-22 01:50:28,522 INFO ]: Hoare is false [2018-06-22 01:50:28,522 INFO ]: Compute interpolants for FPandBP [2018-06-22 01:50:28,522 INFO ]: Backedges is TWOTRACK [2018-06-22 01:50:28,522 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 01:50:28,522 INFO ]: Difference is false [2018-06-22 01:50:28,523 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 01:50:28,523 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 01:50:28,538 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 01:50:28,548 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 01:50:28,548 INFO ]: Found error trace [2018-06-22 01:50:28,549 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:50:28,549 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:28,555 INFO ]: Analyzing trace with hash 81548513, now seen corresponding path program 1 times [2018-06-22 01:50:28,557 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:28,557 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:28,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:28,624 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:28,624 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:28,679 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:28,773 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:50:28,777 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:50:28,777 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 01:50:28,779 INFO ]: Interpolant automaton has 4 states [2018-06-22 01:50:28,793 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 01:50:28,793 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 01:50:28,795 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 01:50:28,941 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:28,941 INFO ]: Finished difference Result 19 states and 23 transitions. [2018-06-22 01:50:28,942 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 01:50:28,944 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 01:50:28,944 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:28,959 INFO ]: With dead ends: 19 [2018-06-22 01:50:28,959 INFO ]: Without dead ends: 19 [2018-06-22 01:50:28,962 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 01:50:28,988 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 01:50:29,019 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 01:50:29,020 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 01:50:29,021 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2018-06-22 01:50:29,022 INFO ]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 7 [2018-06-22 01:50:29,023 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:29,023 INFO ]: Abstraction has 19 states and 23 transitions. [2018-06-22 01:50:29,023 INFO ]: Interpolant automaton has 4 states. [2018-06-22 01:50:29,023 INFO ]: Start isEmpty. Operand 19 states and 23 transitions. [2018-06-22 01:50:29,025 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 01:50:29,025 INFO ]: Found error trace [2018-06-22 01:50:29,025 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:50:29,025 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:29,025 INFO ]: Analyzing trace with hash -1714479126, now seen corresponding path program 1 times [2018-06-22 01:50:29,025 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:29,025 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:29,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:29,026 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:29,026 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:29,036 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:29,070 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 01:50:29,071 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 01:50:29,071 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 01:50:29,072 INFO ]: Interpolant automaton has 3 states [2018-06-22 01:50:29,072 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 01:50:29,072 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:50:29,073 INFO ]: Start difference. First operand 19 states and 23 transitions. Second operand 3 states. [2018-06-22 01:50:29,102 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:29,102 INFO ]: Finished difference Result 25 states and 31 transitions. [2018-06-22 01:50:29,102 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 01:50:29,102 INFO ]: Start accepts. Automaton has 3 states. Word has length 8 [2018-06-22 01:50:29,102 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:29,103 INFO ]: With dead ends: 25 [2018-06-22 01:50:29,103 INFO ]: Without dead ends: 25 [2018-06-22 01:50:29,104 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 01:50:29,104 INFO ]: Start minimizeSevpa. Operand 25 states. [2018-06-22 01:50:29,108 INFO ]: Finished minimizeSevpa. Reduced states from 25 to 21. [2018-06-22 01:50:29,108 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 01:50:29,109 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2018-06-22 01:50:29,109 INFO ]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 8 [2018-06-22 01:50:29,110 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:29,110 INFO ]: Abstraction has 21 states and 25 transitions. [2018-06-22 01:50:29,110 INFO ]: Interpolant automaton has 3 states. [2018-06-22 01:50:29,110 INFO ]: Start isEmpty. Operand 21 states and 25 transitions. [2018-06-22 01:50:29,110 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-22 01:50:29,110 INFO ]: Found error trace [2018-06-22 01:50:29,111 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 01:50:29,111 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:29,111 INFO ]: Analyzing trace with hash 895211507, now seen corresponding path program 1 times [2018-06-22 01:50:29,111 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:29,111 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:29,112 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:29,112 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:29,112 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:29,136 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:29,662 INFO ]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:50:29,662 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:29,662 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 01:50:29,675 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:29,713 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:29,723 INFO ]: Computing forward predicates... [2018-06-22 01:50:29,795 INFO ]: Checked inductivity of 7 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 01:50:29,825 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:29,825 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-06-22 01:50:29,825 INFO ]: Interpolant automaton has 9 states [2018-06-22 01:50:29,825 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 01:50:29,825 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-22 01:50:29,826 INFO ]: Start difference. First operand 21 states and 25 transitions. Second operand 9 states. [2018-06-22 01:50:30,138 WARN ]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 01:50:30,516 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:30,517 INFO ]: Finished difference Result 34 states and 46 transitions. [2018-06-22 01:50:30,518 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 01:50:30,518 INFO ]: Start accepts. Automaton has 9 states. Word has length 16 [2018-06-22 01:50:30,519 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:30,521 INFO ]: With dead ends: 34 [2018-06-22 01:50:30,521 INFO ]: Without dead ends: 34 [2018-06-22 01:50:30,522 INFO ]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-06-22 01:50:30,522 INFO ]: Start minimizeSevpa. Operand 34 states. [2018-06-22 01:50:30,530 INFO ]: Finished minimizeSevpa. Reduced states from 34 to 30. [2018-06-22 01:50:30,530 INFO ]: Start removeUnreachable. Operand 30 states. [2018-06-22 01:50:30,532 INFO ]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2018-06-22 01:50:30,532 INFO ]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 16 [2018-06-22 01:50:30,532 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:30,532 INFO ]: Abstraction has 30 states and 40 transitions. [2018-06-22 01:50:30,532 INFO ]: Interpolant automaton has 9 states. [2018-06-22 01:50:30,532 INFO ]: Start isEmpty. Operand 30 states and 40 transitions. [2018-06-22 01:50:30,534 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 01:50:30,534 INFO ]: Found error trace [2018-06-22 01:50:30,534 INFO ]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-22 01:50:30,534 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:30,534 INFO ]: Analyzing trace with hash -873482372, now seen corresponding path program 2 times [2018-06-22 01:50:30,534 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:30,534 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:30,535 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:30,535 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:30,535 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:30,555 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:30,865 INFO ]: Checked inductivity of 24 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 01:50:30,865 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:30,865 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 01:50:30,879 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:50:30,933 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:50:30,933 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:30,936 INFO ]: Computing forward predicates... [2018-06-22 01:50:31,330 INFO ]: Checked inductivity of 24 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 01:50:31,350 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:31,350 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2018-06-22 01:50:31,350 INFO ]: Interpolant automaton has 16 states [2018-06-22 01:50:31,350 INFO ]: Constructing interpolant automaton starting with 16 interpolants. [2018-06-22 01:50:31,351 INFO ]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2018-06-22 01:50:31,351 INFO ]: Start difference. First operand 30 states and 40 transitions. Second operand 16 states. [2018-06-22 01:50:32,792 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:32,792 INFO ]: Finished difference Result 77 states and 129 transitions. [2018-06-22 01:50:32,792 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-06-22 01:50:32,792 INFO ]: Start accepts. Automaton has 16 states. Word has length 24 [2018-06-22 01:50:32,792 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:32,795 INFO ]: With dead ends: 77 [2018-06-22 01:50:32,795 INFO ]: Without dead ends: 59 [2018-06-22 01:50:32,796 INFO ]: 0 DeclaredPredicates, 71 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=451, Invalid=1619, Unknown=0, NotChecked=0, Total=2070 [2018-06-22 01:50:32,796 INFO ]: Start minimizeSevpa. Operand 59 states. [2018-06-22 01:50:32,806 INFO ]: Finished minimizeSevpa. Reduced states from 59 to 39. [2018-06-22 01:50:32,806 INFO ]: Start removeUnreachable. Operand 39 states. [2018-06-22 01:50:32,807 INFO ]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2018-06-22 01:50:32,807 INFO ]: Start accepts. Automaton has 39 states and 56 transitions. Word has length 24 [2018-06-22 01:50:32,807 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:32,807 INFO ]: Abstraction has 39 states and 56 transitions. [2018-06-22 01:50:32,807 INFO ]: Interpolant automaton has 16 states. [2018-06-22 01:50:32,807 INFO ]: Start isEmpty. Operand 39 states and 56 transitions. [2018-06-22 01:50:32,809 INFO ]: Finished isEmpty. Found accepting run of length 25 [2018-06-22 01:50:32,809 INFO ]: Found error trace [2018-06-22 01:50:32,809 INFO ]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-06-22 01:50:32,809 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:32,809 INFO ]: Analyzing trace with hash -350718212, now seen corresponding path program 3 times [2018-06-22 01:50:32,809 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:32,809 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:32,810 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:32,810 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:32,810 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:32,829 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:32,977 INFO ]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 01:50:32,977 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:32,977 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:32,995 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 01:50:33,016 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 01:50:33,016 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:33,018 INFO ]: Computing forward predicates... [2018-06-22 01:50:33,286 INFO ]: Checked inductivity of 24 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-06-22 01:50:33,310 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:33,310 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2018-06-22 01:50:33,311 INFO ]: Interpolant automaton has 13 states [2018-06-22 01:50:33,311 INFO ]: Constructing interpolant automaton starting with 13 interpolants. [2018-06-22 01:50:33,311 INFO ]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-06-22 01:50:33,311 INFO ]: Start difference. First operand 39 states and 56 transitions. Second operand 13 states. [2018-06-22 01:50:33,486 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:33,486 INFO ]: Finished difference Result 61 states and 87 transitions. [2018-06-22 01:50:33,487 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-22 01:50:33,487 INFO ]: Start accepts. Automaton has 13 states. Word has length 24 [2018-06-22 01:50:33,487 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:33,488 INFO ]: With dead ends: 61 [2018-06-22 01:50:33,488 INFO ]: Without dead ends: 61 [2018-06-22 01:50:33,489 INFO ]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-06-22 01:50:33,489 INFO ]: Start minimizeSevpa. Operand 61 states. [2018-06-22 01:50:33,496 INFO ]: Finished minimizeSevpa. Reduced states from 61 to 41. [2018-06-22 01:50:33,496 INFO ]: Start removeUnreachable. Operand 41 states. [2018-06-22 01:50:33,497 INFO ]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2018-06-22 01:50:33,497 INFO ]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 24 [2018-06-22 01:50:33,498 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:33,498 INFO ]: Abstraction has 41 states and 58 transitions. [2018-06-22 01:50:33,498 INFO ]: Interpolant automaton has 13 states. [2018-06-22 01:50:33,498 INFO ]: Start isEmpty. Operand 41 states and 58 transitions. [2018-06-22 01:50:33,499 INFO ]: Finished isEmpty. Found accepting run of length 33 [2018-06-22 01:50:33,499 INFO ]: Found error trace [2018-06-22 01:50:33,499 INFO ]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2018-06-22 01:50:33,499 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:33,500 INFO ]: Analyzing trace with hash 872201605, now seen corresponding path program 4 times [2018-06-22 01:50:33,500 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:33,500 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:33,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:33,500 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:33,500 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:33,517 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:33,645 INFO ]: Checked inductivity of 51 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 01:50:33,645 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:33,645 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:33,660 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 01:50:33,691 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 01:50:33,691 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:33,694 INFO ]: Computing forward predicates... [2018-06-22 01:50:33,790 INFO ]: Checked inductivity of 51 backedges. 17 proven. 19 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-06-22 01:50:33,810 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:33,810 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2018-06-22 01:50:33,811 INFO ]: Interpolant automaton has 19 states [2018-06-22 01:50:33,811 INFO ]: Constructing interpolant automaton starting with 19 interpolants. [2018-06-22 01:50:33,811 INFO ]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2018-06-22 01:50:33,811 INFO ]: Start difference. First operand 41 states and 58 transitions. Second operand 19 states. [2018-06-22 01:50:34,746 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:34,746 INFO ]: Finished difference Result 72 states and 121 transitions. [2018-06-22 01:50:34,746 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-06-22 01:50:34,746 INFO ]: Start accepts. Automaton has 19 states. Word has length 32 [2018-06-22 01:50:34,747 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:34,749 INFO ]: With dead ends: 72 [2018-06-22 01:50:34,749 INFO ]: Without dead ends: 72 [2018-06-22 01:50:34,750 INFO ]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=365, Invalid=1797, Unknown=0, NotChecked=0, Total=2162 [2018-06-22 01:50:34,750 INFO ]: Start minimizeSevpa. Operand 72 states. [2018-06-22 01:50:34,762 INFO ]: Finished minimizeSevpa. Reduced states from 72 to 50. [2018-06-22 01:50:34,762 INFO ]: Start removeUnreachable. Operand 50 states. [2018-06-22 01:50:34,764 INFO ]: Finished removeUnreachable. Reduced from 50 states to 50 states and 76 transitions. [2018-06-22 01:50:34,764 INFO ]: Start accepts. Automaton has 50 states and 76 transitions. Word has length 32 [2018-06-22 01:50:34,764 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:34,764 INFO ]: Abstraction has 50 states and 76 transitions. [2018-06-22 01:50:34,764 INFO ]: Interpolant automaton has 19 states. [2018-06-22 01:50:34,764 INFO ]: Start isEmpty. Operand 50 states and 76 transitions. [2018-06-22 01:50:34,767 INFO ]: Finished isEmpty. Found accepting run of length 41 [2018-06-22 01:50:34,767 INFO ]: Found error trace [2018-06-22 01:50:34,767 INFO ]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2018-06-22 01:50:34,768 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:34,768 INFO ]: Analyzing trace with hash 269200014, now seen corresponding path program 5 times [2018-06-22 01:50:34,768 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:34,768 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:34,768 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:34,768 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:34,768 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:34,788 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:35,047 INFO ]: Checked inductivity of 88 backedges. 23 proven. 36 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-06-22 01:50:35,047 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:35,047 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-22 01:50:35,062 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:35,113 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-06-22 01:50:35,113 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:35,116 INFO ]: Computing forward predicates... [2018-06-22 01:50:35,295 INFO ]: Checked inductivity of 88 backedges. 23 proven. 36 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-06-22 01:50:35,316 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:35,316 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 22 [2018-06-22 01:50:35,316 INFO ]: Interpolant automaton has 22 states [2018-06-22 01:50:35,316 INFO ]: Constructing interpolant automaton starting with 22 interpolants. [2018-06-22 01:50:35,317 INFO ]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-06-22 01:50:35,317 INFO ]: Start difference. First operand 50 states and 76 transitions. Second operand 22 states. [2018-06-22 01:50:36,430 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:36,431 INFO ]: Finished difference Result 87 states and 148 transitions. [2018-06-22 01:50:36,431 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2018-06-22 01:50:36,431 INFO ]: Start accepts. Automaton has 22 states. Word has length 40 [2018-06-22 01:50:36,431 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:36,433 INFO ]: With dead ends: 87 [2018-06-22 01:50:36,433 INFO ]: Without dead ends: 87 [2018-06-22 01:50:36,435 INFO ]: 0 DeclaredPredicates, 109 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=593, Invalid=3067, Unknown=0, NotChecked=0, Total=3660 [2018-06-22 01:50:36,435 INFO ]: Start minimizeSevpa. Operand 87 states. [2018-06-22 01:50:36,446 INFO ]: Finished minimizeSevpa. Reduced states from 87 to 59. [2018-06-22 01:50:36,446 INFO ]: Start removeUnreachable. Operand 59 states. [2018-06-22 01:50:36,448 INFO ]: Finished removeUnreachable. Reduced from 59 states to 59 states and 94 transitions. [2018-06-22 01:50:36,448 INFO ]: Start accepts. Automaton has 59 states and 94 transitions. Word has length 40 [2018-06-22 01:50:36,448 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:36,448 INFO ]: Abstraction has 59 states and 94 transitions. [2018-06-22 01:50:36,448 INFO ]: Interpolant automaton has 22 states. [2018-06-22 01:50:36,448 INFO ]: Start isEmpty. Operand 59 states and 94 transitions. [2018-06-22 01:50:36,452 INFO ]: Finished isEmpty. Found accepting run of length 49 [2018-06-22 01:50:36,452 INFO ]: Found error trace [2018-06-22 01:50:36,452 INFO ]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2018-06-22 01:50:36,452 INFO ]: === Iteration 8 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:36,452 INFO ]: Analyzing trace with hash -1891271017, now seen corresponding path program 6 times [2018-06-22 01:50:36,452 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:36,452 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:36,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:36,453 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:36,453 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:36,484 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:36,686 INFO ]: Checked inductivity of 135 backedges. 29 proven. 58 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-06-22 01:50:36,686 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:36,686 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:36,695 INFO ]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-06-22 01:50:36,795 INFO ]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-06-22 01:50:36,795 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:36,800 INFO ]: Computing forward predicates... [2018-06-22 01:50:37,126 INFO ]: Checked inductivity of 135 backedges. 29 proven. 58 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-06-22 01:50:37,147 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:37,147 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 25 [2018-06-22 01:50:37,147 INFO ]: Interpolant automaton has 25 states [2018-06-22 01:50:37,147 INFO ]: Constructing interpolant automaton starting with 25 interpolants. [2018-06-22 01:50:37,147 INFO ]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2018-06-22 01:50:37,148 INFO ]: Start difference. First operand 59 states and 94 transitions. Second operand 25 states. [2018-06-22 01:50:38,659 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:38,659 INFO ]: Finished difference Result 102 states and 175 transitions. [2018-06-22 01:50:38,659 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-06-22 01:50:38,659 INFO ]: Start accepts. Automaton has 25 states. Word has length 48 [2018-06-22 01:50:38,660 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:38,661 INFO ]: With dead ends: 102 [2018-06-22 01:50:38,661 INFO ]: Without dead ends: 102 [2018-06-22 01:50:38,662 INFO ]: 0 DeclaredPredicates, 136 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=891, Invalid=4659, Unknown=0, NotChecked=0, Total=5550 [2018-06-22 01:50:38,663 INFO ]: Start minimizeSevpa. Operand 102 states. [2018-06-22 01:50:38,676 INFO ]: Finished minimizeSevpa. Reduced states from 102 to 68. [2018-06-22 01:50:38,676 INFO ]: Start removeUnreachable. Operand 68 states. [2018-06-22 01:50:38,678 INFO ]: Finished removeUnreachable. Reduced from 68 states to 68 states and 112 transitions. [2018-06-22 01:50:38,678 INFO ]: Start accepts. Automaton has 68 states and 112 transitions. Word has length 48 [2018-06-22 01:50:38,678 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:38,678 INFO ]: Abstraction has 68 states and 112 transitions. [2018-06-22 01:50:38,678 INFO ]: Interpolant automaton has 25 states. [2018-06-22 01:50:38,678 INFO ]: Start isEmpty. Operand 68 states and 112 transitions. [2018-06-22 01:50:38,682 INFO ]: Finished isEmpty. Found accepting run of length 57 [2018-06-22 01:50:38,682 INFO ]: Found error trace [2018-06-22 01:50:38,682 INFO ]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2018-06-22 01:50:38,682 INFO ]: === Iteration 9 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:38,682 INFO ]: Analyzing trace with hash -1479329376, now seen corresponding path program 7 times [2018-06-22 01:50:38,682 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:38,682 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:38,683 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:38,683 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:38,683 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:38,711 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:39,066 INFO ]: Checked inductivity of 192 backedges. 35 proven. 85 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-06-22 01:50:39,066 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:39,066 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:39,073 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:39,111 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:39,116 INFO ]: Computing forward predicates... [2018-06-22 01:50:39,313 INFO ]: Checked inductivity of 192 backedges. 35 proven. 85 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-06-22 01:50:39,349 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:39,349 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 28 [2018-06-22 01:50:39,349 INFO ]: Interpolant automaton has 28 states [2018-06-22 01:50:39,350 INFO ]: Constructing interpolant automaton starting with 28 interpolants. [2018-06-22 01:50:39,350 INFO ]: CoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2018-06-22 01:50:39,350 INFO ]: Start difference. First operand 68 states and 112 transitions. Second operand 28 states. [2018-06-22 01:50:40,997 WARN ]: Spent 249.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2018-06-22 01:50:41,915 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:41,915 INFO ]: Finished difference Result 117 states and 202 transitions. [2018-06-22 01:50:41,915 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2018-06-22 01:50:41,915 INFO ]: Start accepts. Automaton has 28 states. Word has length 56 [2018-06-22 01:50:41,915 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:41,917 INFO ]: With dead ends: 117 [2018-06-22 01:50:41,917 INFO ]: Without dead ends: 117 [2018-06-22 01:50:41,920 INFO ]: 0 DeclaredPredicates, 163 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2141 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1259, Invalid=6573, Unknown=0, NotChecked=0, Total=7832 [2018-06-22 01:50:41,920 INFO ]: Start minimizeSevpa. Operand 117 states. [2018-06-22 01:50:41,934 INFO ]: Finished minimizeSevpa. Reduced states from 117 to 77. [2018-06-22 01:50:41,934 INFO ]: Start removeUnreachable. Operand 77 states. [2018-06-22 01:50:41,936 INFO ]: Finished removeUnreachable. Reduced from 77 states to 77 states and 130 transitions. [2018-06-22 01:50:41,936 INFO ]: Start accepts. Automaton has 77 states and 130 transitions. Word has length 56 [2018-06-22 01:50:41,936 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:41,936 INFO ]: Abstraction has 77 states and 130 transitions. [2018-06-22 01:50:41,936 INFO ]: Interpolant automaton has 28 states. [2018-06-22 01:50:41,936 INFO ]: Start isEmpty. Operand 77 states and 130 transitions. [2018-06-22 01:50:41,940 INFO ]: Finished isEmpty. Found accepting run of length 65 [2018-06-22 01:50:41,940 INFO ]: Found error trace [2018-06-22 01:50:41,940 INFO ]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2018-06-22 01:50:41,941 INFO ]: === Iteration 10 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:41,941 INFO ]: Analyzing trace with hash 383638441, now seen corresponding path program 8 times [2018-06-22 01:50:41,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:41,941 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:41,941 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:41,941 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 01:50:41,941 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:41,961 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:42,288 INFO ]: Checked inductivity of 259 backedges. 41 proven. 117 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-06-22 01:50:42,288 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:42,288 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:42,304 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 01:50:42,349 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 01:50:42,349 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:42,354 INFO ]: Computing forward predicates... [2018-06-22 01:50:42,585 INFO ]: Checked inductivity of 259 backedges. 41 proven. 117 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-06-22 01:50:42,620 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:42,620 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 31 [2018-06-22 01:50:42,621 INFO ]: Interpolant automaton has 31 states [2018-06-22 01:50:42,621 INFO ]: Constructing interpolant automaton starting with 31 interpolants. [2018-06-22 01:50:42,621 INFO ]: CoverageRelationStatistics Valid=110, Invalid=820, Unknown=0, NotChecked=0, Total=930 [2018-06-22 01:50:42,622 INFO ]: Start difference. First operand 77 states and 130 transitions. Second operand 31 states. [2018-06-22 01:50:44,315 WARN ]: Spent 320.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-06-22 01:50:44,964 WARN ]: Spent 149.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-06-22 01:50:46,242 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:46,242 INFO ]: Finished difference Result 132 states and 229 transitions. [2018-06-22 01:50:46,242 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-06-22 01:50:46,242 INFO ]: Start accepts. Automaton has 31 states. Word has length 64 [2018-06-22 01:50:46,242 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:46,245 INFO ]: With dead ends: 132 [2018-06-22 01:50:46,245 INFO ]: Without dead ends: 132 [2018-06-22 01:50:46,248 INFO ]: 0 DeclaredPredicates, 190 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3003 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1697, Invalid=8809, Unknown=0, NotChecked=0, Total=10506 [2018-06-22 01:50:46,248 INFO ]: Start minimizeSevpa. Operand 132 states. [2018-06-22 01:50:46,274 INFO ]: Finished minimizeSevpa. Reduced states from 132 to 86. [2018-06-22 01:50:46,274 INFO ]: Start removeUnreachable. Operand 86 states. [2018-06-22 01:50:46,280 INFO ]: Finished removeUnreachable. Reduced from 86 states to 86 states and 148 transitions. [2018-06-22 01:50:46,280 INFO ]: Start accepts. Automaton has 86 states and 148 transitions. Word has length 64 [2018-06-22 01:50:46,281 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:46,281 INFO ]: Abstraction has 86 states and 148 transitions. [2018-06-22 01:50:46,281 INFO ]: Interpolant automaton has 31 states. [2018-06-22 01:50:46,281 INFO ]: Start isEmpty. Operand 86 states and 148 transitions. [2018-06-22 01:50:46,293 INFO ]: Finished isEmpty. Found accepting run of length 73 [2018-06-22 01:50:46,293 INFO ]: Found error trace [2018-06-22 01:50:46,293 INFO ]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2018-06-22 01:50:46,293 INFO ]: === Iteration 11 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 01:50:46,293 INFO ]: Analyzing trace with hash 1619944626, now seen corresponding path program 9 times [2018-06-22 01:50:46,293 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 01:50:46,293 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 01:50:46,294 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:46,294 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 01:50:46,294 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 01:50:46,334 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:47,373 INFO ]: Checked inductivity of 336 backedges. 47 proven. 154 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-06-22 01:50:47,373 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 01:50:47,373 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 01:50:47,379 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 01:50:47,416 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-06-22 01:50:47,416 INFO ]: Conjunction of SSA is unsat [2018-06-22 01:50:47,421 INFO ]: Computing forward predicates... [2018-06-22 01:50:47,572 INFO ]: Checked inductivity of 336 backedges. 111 proven. 32 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2018-06-22 01:50:47,595 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 01:50:47,595 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 9] total 35 [2018-06-22 01:50:47,596 INFO ]: Interpolant automaton has 35 states [2018-06-22 01:50:47,596 INFO ]: Constructing interpolant automaton starting with 35 interpolants. [2018-06-22 01:50:47,596 INFO ]: CoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190 [2018-06-22 01:50:47,596 INFO ]: Start difference. First operand 86 states and 148 transitions. Second operand 35 states. [2018-06-22 01:50:50,965 WARN ]: Spent 110.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-06-22 01:50:51,889 WARN ]: Spent 320.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-06-22 01:50:52,574 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 01:50:52,574 INFO ]: Finished difference Result 117 states and 172 transitions. [2018-06-22 01:50:52,574 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2018-06-22 01:50:52,574 INFO ]: Start accepts. Automaton has 35 states. Word has length 72 [2018-06-22 01:50:52,575 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 01:50:52,575 INFO ]: With dead ends: 117 [2018-06-22 01:50:52,575 INFO ]: Without dead ends: 0 [2018-06-22 01:50:52,581 INFO ]: 0 DeclaredPredicates, 211 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5543 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2762, Invalid=15060, Unknown=0, NotChecked=0, Total=17822 [2018-06-22 01:50:52,581 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 01:50:52,581 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 01:50:52,581 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 01:50:52,581 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 01:50:52,581 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2018-06-22 01:50:52,581 INFO ]: Finished accepts. word is rejected. [2018-06-22 01:50:52,581 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 01:50:52,581 INFO ]: Interpolant automaton has 35 states. [2018-06-22 01:50:52,581 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 01:50:52,581 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 01:50:52,586 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:50:52 BoogieIcfgContainer [2018-06-22 01:50:52,586 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 01:50:52,587 INFO ]: Toolchain (without parser) took 24581.71 ms. Allocated memory was 308.3 MB in the beginning and 524.3 MB in the end (delta: 216.0 MB). Free memory was 264.8 MB in the beginning and 242.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 238.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:52,588 INFO ]: SmtParser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 01:50:52,588 INFO ]: ChcToBoogie took 61.78 ms. Allocated memory is still 308.3 MB. Free memory was 264.8 MB in the beginning and 262.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:52,589 INFO ]: Boogie Preprocessor took 35.94 ms. Allocated memory is still 308.3 MB. Free memory was 262.8 MB in the beginning and 260.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:52,589 INFO ]: RCFGBuilder took 335.59 ms. Allocated memory is still 308.3 MB. Free memory was 260.8 MB in the beginning and 254.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:52,590 INFO ]: TraceAbstraction took 24135.31 ms. Allocated memory was 308.3 MB in the beginning and 524.3 MB in the end (delta: 216.0 MB). Free memory was 254.8 MB in the beginning and 242.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 228.7 MB. Max. memory is 3.6 GB. [2018-06-22 01:50:52,594 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.10 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.78 ms. Allocated memory is still 308.3 MB. Free memory was 264.8 MB in the beginning and 262.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 35.94 ms. Allocated memory is still 308.3 MB. Free memory was 262.8 MB in the beginning and 260.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 335.59 ms. Allocated memory is still 308.3 MB. Free memory was 260.8 MB in the beginning and 254.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 24135.31 ms. Allocated memory was 308.3 MB in the beginning and 524.3 MB in the end (delta: 216.0 MB). Free memory was 254.8 MB in the beginning and 242.1 MB in the end (delta: 12.7 MB). Peak memory consumption was 228.7 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 2 procedures, 13 locations, 1 error locations. SAFE Result, 24.0s OverallTime, 11 OverallIterations, 9 TraceHistogramMax, 17.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 307 SDslu, 1072 SDs, 0 SdLazy, 6004 SolverSat, 1571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1039 GetRequests, 462 SyntacticMatches, 4 SemanticMatches, 573 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13885 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=10, 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: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 218 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 767 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 747 ConstructedInterpolants, 0 QuantifiedInterpolants, 111588 SizeOfPredicates, 154 NumberOfNonLiveVariables, 1505 ConjunctsInSsa, 306 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 1374/2232 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/mc91_99.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_01-50-52-609.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/mc91_99.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_01-50-52-609.csv Received shutdown request...