java -Xss4m -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/vmt-chc-benchmarks/ctigar/dillig25.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 12:55:18,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 12:55:18,722 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 12:55:18,739 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 12:55:18,739 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 12:55:18,740 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 12:55:18,741 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 12:55:18,747 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 12:55:18,750 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 12:55:18,751 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 12:55:18,751 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 12:55:18,752 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 12:55:18,752 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 12:55:18,764 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 12:55:18,765 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 12:55:18,766 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 12:55:18,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 12:55:18,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 12:55:18,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 12:55:18,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 12:55:18,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 12:55:18,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 12:55:18,781 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 12:55:18,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 12:55:18,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 12:55:18,783 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 12:55:18,783 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 12:55:18,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 12:55:18,788 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 12:55:18,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 12:55:18,789 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 12:55:18,789 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 12:55:18,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 12:55:18,790 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 12:55:18,791 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 12:55:18,791 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 12:55:18,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 12:55:18,817 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 12:55:18,818 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 12:55:18,818 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 12:55:18,822 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 12:55:18,823 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 12:55:18,823 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 12:55:18,823 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 12:55:18,823 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 12:55:18,823 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 12:55:18,824 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 12:55:18,824 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 12:55:18,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:55:18,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 12:55:18,824 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 12:55:18,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 12:55:18,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 12:55:18,825 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 12:55:18,825 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 12:55:18,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 12:55:18,825 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 12:55:18,827 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 12:55:18,827 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 12:55:18,876 INFO ]: Repository-Root is: /tmp [2018-06-25 12:55:18,892 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 12:55:18,895 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 12:55:18,897 INFO ]: Initializing SmtParser... [2018-06-25 12:55:18,897 INFO ]: SmtParser initialized [2018-06-25 12:55:18,897 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig25.c.smt2 [2018-06-25 12:55:18,902 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 [2018-06-25 12:55:19,016 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig25.c.smt2 unknown [2018-06-25 12:55:19,418 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig25.c.smt2 [2018-06-25 12:55:19,424 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 12:55:19,429 INFO ]: Walking toolchain with 4 elements. [2018-06-25 12:55:19,429 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 12:55:19,429 INFO ]: Initializing ChcToBoogie... [2018-06-25 12:55:19,429 INFO ]: ChcToBoogie initialized [2018-06-25 12:55:19,432 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,494 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19 Unit [2018-06-25 12:55:19,494 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 12:55:19,495 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 12:55:19,495 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 12:55:19,495 INFO ]: Boogie Preprocessor initialized [2018-06-25 12:55:19,516 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,516 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,527 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,527 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,533 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,534 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,540 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... [2018-06-25 12:55:19,542 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 12:55:19,543 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 12:55:19,543 INFO ]: Initializing RCFGBuilder... [2018-06-25 12:55:19,543 INFO ]: RCFGBuilder initialized [2018-06-25 12:55:19,543 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 12:55:19,560 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 12:55:19,560 INFO ]: Found specification of procedure gotoProc [2018-06-25 12:55:19,560 INFO ]: Found implementation of procedure gotoProc [2018-06-25 12:55:19,560 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 12:55:19,560 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 12:55:19,560 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 12:55:19,729 INFO ]: Using library mode [2018-06-25 12:55:19,730 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:55:19 BoogieIcfgContainer [2018-06-25 12:55:19,730 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 12:55:19,732 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 12:55:19,732 INFO ]: Initializing TraceAbstraction... [2018-06-25 12:55:19,737 INFO ]: TraceAbstraction initialized [2018-06-25 12:55:19,737 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:55:19" (1/3) ... [2018-06-25 12:55:19,738 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dad917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 12:55:19, skipping insertion in model container [2018-06-25 12:55:19,738 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:55:19" (2/3) ... [2018-06-25 12:55:19,739 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10dad917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 12:55:19, skipping insertion in model container [2018-06-25 12:55:19,739 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:55:19" (3/3) ... [2018-06-25 12:55:19,744 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 12:55:19,753 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 12:55:19,760 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 12:55:19,797 INFO ]: Using default assertion order modulation [2018-06-25 12:55:19,798 INFO ]: Interprodecural is true [2018-06-25 12:55:19,798 INFO ]: Hoare is false [2018-06-25 12:55:19,798 INFO ]: Compute interpolants for FPandBP [2018-06-25 12:55:19,798 INFO ]: Backedges is TWOTRACK [2018-06-25 12:55:19,798 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 12:55:19,798 INFO ]: Difference is false [2018-06-25 12:55:19,798 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 12:55:19,798 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 12:55:19,810 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 12:55:19,820 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 12:55:19,820 INFO ]: Found error trace [2018-06-25 12:55:19,821 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:19,821 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:19,826 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-25 12:55:19,828 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:19,828 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:19,865 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:19,868 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:55:19,868 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:19,902 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:20,002 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:20,005 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 12:55:20,005 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 12:55:20,007 INFO ]: Interpolant automaton has 3 states [2018-06-25 12:55:20,034 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 12:55:20,035 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 12:55:20,037 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 12:55:20,129 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:55:20,129 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 12:55:20,130 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 12:55:20,131 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 12:55:20,131 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:55:20,147 INFO ]: With dead ends: 9 [2018-06-25 12:55:20,147 INFO ]: Without dead ends: 9 [2018-06-25 12:55:20,149 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 [2018-06-25 12:55:20,167 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 12:55:20,185 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 12:55:20,186 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 12:55:20,187 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 12:55:20,188 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 12:55:20,188 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:55:20,188 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 12:55:20,188 INFO ]: Interpolant automaton has 3 states. [2018-06-25 12:55:20,188 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 12:55:20,188 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 12:55:20,188 INFO ]: Found error trace [2018-06-25 12:55:20,189 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:20,189 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:20,189 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-25 12:55:20,189 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:20,189 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:20,190 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:20,190 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:55:20,190 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:20,219 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:20,332 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:20,332 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:55:20,332 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 [2018-06-25 12:55:20,340 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:55:20,396 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:20,410 INFO ]: Computing forward predicates... [2018-06-25 12:55:20,574 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:20,604 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:55:20,604 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 12:55:20,605 INFO ]: Interpolant automaton has 4 states [2018-06-25 12:55:20,605 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 12:55:20,605 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 12:55:20,605 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2018-06-25 12:55:20,669 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:55:20,670 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 12:55:20,670 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 12:55:20,670 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 12:55:20,670 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:55:20,670 INFO ]: With dead ends: 10 [2018-06-25 12:55:20,670 INFO ]: Without dead ends: 10 [2018-06-25 12:55:20,671 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 12:55:20,671 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 12:55:20,672 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 12:55:20,672 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 12:55:20,673 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 12:55:20,673 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 12:55:20,673 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:55:20,673 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 12:55:20,673 INFO ]: Interpolant automaton has 4 states. [2018-06-25 12:55:20,673 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 12:55:20,673 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 12:55:20,673 INFO ]: Found error trace [2018-06-25 12:55:20,673 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:20,673 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:20,673 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-25 12:55:20,673 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:20,673 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:20,674 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:20,674 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 12:55:20,674 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:20,752 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:21,004 WARN ]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:55:21,006 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:21,006 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:55:21,006 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 [2018-06-25 12:55:21,019 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 12:55:21,095 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 12:55:21,095 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:21,099 INFO ]: Computing forward predicates... [2018-06-25 12:55:21,611 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:21,631 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:55:21,631 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-25 12:55:21,631 INFO ]: Interpolant automaton has 6 states [2018-06-25 12:55:21,631 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 12:55:21,631 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-25 12:55:21,632 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-25 12:55:21,694 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:55:21,840 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 12:55:21,840 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 12:55:21,840 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-25 12:55:21,840 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:55:21,841 INFO ]: With dead ends: 11 [2018-06-25 12:55:21,841 INFO ]: Without dead ends: 11 [2018-06-25 12:55:21,841 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-06-25 12:55:21,841 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 12:55:21,842 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 12:55:21,842 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 12:55:21,843 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 12:55:21,843 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-25 12:55:21,843 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:55:21,843 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 12:55:21,843 INFO ]: Interpolant automaton has 6 states. [2018-06-25 12:55:21,843 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 12:55:21,843 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 12:55:21,843 INFO ]: Found error trace [2018-06-25 12:55:21,843 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:21,843 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:21,844 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-25 12:55:21,844 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:21,844 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:21,845 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:21,845 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:55:21,845 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:21,946 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:22,159 WARN ]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-06-25 12:55:22,355 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:22,355 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:55:22,355 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 [2018-06-25 12:55:22,361 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 12:55:22,431 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 12:55:22,431 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:22,435 INFO ]: Computing forward predicates... [2018-06-25 12:55:22,666 WARN ]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-06-25 12:55:29,261 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:29,295 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:55:29,295 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-25 12:55:29,295 INFO ]: Interpolant automaton has 7 states [2018-06-25 12:55:29,296 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 12:55:29,296 INFO ]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-06-25 12:55:29,296 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-25 12:55:29,487 WARN ]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 12:55:29,774 WARN ]: Spent 184.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2018-06-25 12:55:29,854 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:55:29,854 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-25 12:55:29,854 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 12:55:29,854 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-25 12:55:29,854 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:55:29,855 INFO ]: With dead ends: 12 [2018-06-25 12:55:29,855 INFO ]: Without dead ends: 12 [2018-06-25 12:55:29,855 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-25 12:55:29,855 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 12:55:29,857 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-25 12:55:29,857 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-25 12:55:29,857 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-25 12:55:29,857 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-25 12:55:29,857 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:55:29,857 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-25 12:55:29,857 INFO ]: Interpolant automaton has 7 states. [2018-06-25 12:55:29,857 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-25 12:55:29,857 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 12:55:29,857 INFO ]: Found error trace [2018-06-25 12:55:29,857 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:29,858 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:29,859 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 4 times [2018-06-25 12:55:29,859 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:29,859 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:29,861 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:29,861 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:55:29,861 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:29,937 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:30,094 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:30,095 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:55:30,095 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 [2018-06-25 12:55:30,102 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 12:55:30,148 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 12:55:30,148 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:30,152 INFO ]: Computing forward predicates... [2018-06-25 12:55:31,403 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,432 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,452 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,526 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,564 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:31,570 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,589 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:31,637 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:31,692 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:44,953 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:44,973 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 12:55:44,973 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-25 12:55:44,973 INFO ]: Interpolant automaton has 9 states [2018-06-25 12:55:44,973 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-25 12:55:44,973 INFO ]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-06-25 12:55:44,974 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2018-06-25 12:55:45,197 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 12:55:45,197 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-25 12:55:45,197 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-25 12:55:45,197 INFO ]: Start accepts. Automaton has 9 states. Word has length 11 [2018-06-25 12:55:45,197 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 12:55:45,197 INFO ]: With dead ends: 13 [2018-06-25 12:55:45,197 INFO ]: Without dead ends: 13 [2018-06-25 12:55:45,198 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2018-06-25 12:55:45,198 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-25 12:55:45,199 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-25 12:55:45,199 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-25 12:55:45,199 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-25 12:55:45,200 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-25 12:55:45,200 INFO ]: Finished accepts. word is rejected. [2018-06-25 12:55:45,200 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-25 12:55:45,200 INFO ]: Interpolant automaton has 9 states. [2018-06-25 12:55:45,200 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-25 12:55:45,200 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 12:55:45,200 INFO ]: Found error trace [2018-06-25 12:55:45,200 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 12:55:45,200 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 12:55:45,200 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 5 times [2018-06-25 12:55:45,200 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 12:55:45,200 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 12:55:45,201 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:45,201 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 12:55:45,201 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 12:55:45,283 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:45,574 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 12:55:45,574 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 12:55:45,574 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:55:45,579 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-25 12:55:45,621 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-25 12:55:45,622 INFO ]: Conjunction of SSA is unsat [2018-06-25 12:55:45,626 INFO ]: Computing forward predicates... [2018-06-25 12:55:49,012 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 12:55:49,548 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,605 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,607 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,613 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,627 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 12:55:49,636 WARN ]: expecting exponential blowup for input size 8 [2018-06-25 12:55:49,649 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,660 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,668 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,688 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,696 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:49,702 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 12:55:49,730 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,773 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 12:55:49,774 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-25 12:56:26,880 INFO ]: Timeout while computing interpolants [2018-06-25 12:56:27,081 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 12:56:27,081 WARN ]: Verification canceled [2018-06-25 12:56:27,086 WARN ]: Timeout [2018-06-25 12:56:27,086 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:56:27 BoogieIcfgContainer [2018-06-25 12:56:27,086 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 12:56:27,087 INFO ]: Toolchain (without parser) took 67662.69 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 261.7 MB in the beginning and 1.1 GB in the end (delta: -854.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 12:56:27,088 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 12:56:27,088 INFO ]: ChcToBoogie took 65.75 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:56:27,089 INFO ]: Boogie Preprocessor took 46.70 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:56:27,089 INFO ]: RCFGBuilder took 187.15 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 247.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-25 12:56:27,090 INFO ]: TraceAbstraction took 67354.44 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 247.8 MB in the beginning and 1.1 GB in the end (delta: -868.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 12:56:27,093 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.3 MB. Free memory is still 273.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 65.75 ms. Allocated memory is still 309.3 MB. Free memory was 261.7 MB in the beginning and 259.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 46.70 ms. Allocated memory is still 309.3 MB. Free memory was 259.7 MB in the beginning and 257.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 187.15 ms. Allocated memory is still 309.3 MB. Free memory was 257.7 MB in the beginning and 247.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 67354.44 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 247.8 MB in the beginning and 1.1 GB in the end (delta: -868.9 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 13 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 31107 quantified variables from 13 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 67.2s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 6 SDslu, 80 SDs, 0 SdLazy, 35 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.3s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2923 SizeOfPredicates, 20 NumberOfNonLiveVariables, 558 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dillig25.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_12-56-27-113.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dillig25.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_12-56-27-113.csv Completed graceful shutdown