java -Xss1g -Xmx8000000000 -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-comp18-benchmarks/lia/chc-lia-0321.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-20 22:55:20,460 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-20 22:55:20,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-20 22:55:20,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-20 22:55:20,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-20 22:55:20,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-20 22:55:20,479 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-20 22:55:20,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-20 22:55:20,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-20 22:55:20,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-20 22:55:20,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-20 22:55:20,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-20 22:55:20,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-20 22:55:20,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-20 22:55:20,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-20 22:55:20,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-20 22:55:20,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-20 22:55:20,502 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-20 22:55:20,504 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-20 22:55:20,504 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-20 22:55:20,505 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-20 22:55:20,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-20 22:55:20,508 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-20 22:55:20,508 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-20 22:55:20,508 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-20 22:55:20,514 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-20 22:55:20,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-20 22:55:20,515 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-20 22:55:20,516 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-20 22:55:20,516 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-20 22:55:20,516 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-20 22:55:20,520 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-20 22:55:20,520 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-20 22:55:20,521 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-20 22:55:20,522 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-20 22:55:20,522 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-20 22:55:20,693 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-20 22:55:20,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-20 22:55:20,694 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-20 22:55:20,694 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-20 22:55:20,695 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-20 22:55:20,695 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-20 22:55:20,695 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-20 22:55:20,696 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-20 22:55:20,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-20 22:55:20,696 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-20 22:55:20,696 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-20 22:55:20,696 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-20 22:55:20,696 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-20 22:55:20,697 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-20 22:55:20,697 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-20 22:55:20,697 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-20 22:55:20,697 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-20 22:55:20,698 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-20 22:55:20,700 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-20 22:55:20,755 INFO ]: Repository-Root is: /tmp [2018-06-20 22:55:20,772 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-20 22:55:20,778 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-20 22:55:20,780 INFO ]: Initializing SmtParser... [2018-06-20 22:55:20,780 INFO ]: SmtParser initialized [2018-06-20 22:55:20,781 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 [2018-06-20 22:55:20,782 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 [2018-06-20 22:55:20,874 INFO ]: Executing SMT file /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 unknown [2018-06-20 22:55:32,497 INFO ]: Succesfully executed SMT file /storage/chc-comp18-benchmarks/lia/chc-lia-0321.smt2 [2018-06-20 22:55:32,616 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-20 22:55:32,620 INFO ]: Walking toolchain with 4 elements. [2018-06-20 22:55:32,620 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-20 22:55:32,620 INFO ]: Initializing ChcToBoogie... [2018-06-20 22:55:32,621 INFO ]: ChcToBoogie initialized [2018-06-20 22:55:32,624 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 20.06 10:55:32" (1/1) ... [2018-06-20 22:55:33,157 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33 Unit [2018-06-20 22:55:33,158 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-20 22:55:33,158 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-20 22:55:33,158 INFO ]: Initializing Boogie Preprocessor... [2018-06-20 22:55:33,158 INFO ]: Boogie Preprocessor initialized [2018-06-20 22:55:33,179 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:33,179 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:33,546 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:33,546 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:33,814 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:33,835 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:34,026 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (1/1) ... [2018-06-20 22:55:34,261 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-20 22:55:34,261 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-20 22:55:34,261 INFO ]: Initializing RCFGBuilder... [2018-06-20 22:55:34,261 INFO ]: RCFGBuilder initialized [2018-06-20 22:55:34,265 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (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 [2018-06-20 22:55:34,275 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-20 22:55:34,275 INFO ]: Found specification of procedure gotoProc [2018-06-20 22:55:34,275 INFO ]: Found implementation of procedure gotoProc [2018-06-20 22:55:34,275 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-20 22:55:34,276 INFO ]: Found specification of procedure Ultimate.START [2018-06-20 22:55:34,276 INFO ]: Found implementation of procedure Ultimate.START [2018-06-20 22:56:13,682 INFO ]: Using library mode [2018-06-20 22:56:13,683 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 10:56:13 BoogieIcfgContainer [2018-06-20 22:56:13,683 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-20 22:56:13,686 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-20 22:56:13,686 INFO ]: Initializing TraceAbstraction... [2018-06-20 22:56:13,691 INFO ]: TraceAbstraction initialized [2018-06-20 22:56:13,691 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 20.06 10:55:32" (1/3) ... [2018-06-20 22:56:13,692 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74044dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 20.06 10:56:13, skipping insertion in model container [2018-06-20 22:56:13,692 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 20.06 10:55:33" (2/3) ... [2018-06-20 22:56:13,692 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74044dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 10:56:13, skipping insertion in model container [2018-06-20 22:56:13,692 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 10:56:13" (3/3) ... [2018-06-20 22:56:13,694 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-20 22:56:13,703 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-20 22:56:13,710 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-20 22:56:13,757 INFO ]: Using default assertion order modulation [2018-06-20 22:56:13,757 INFO ]: Interprodecural is true [2018-06-20 22:56:13,757 INFO ]: Hoare is false [2018-06-20 22:56:13,757 INFO ]: Compute interpolants for FPandBP [2018-06-20 22:56:13,757 INFO ]: Backedges is TWOTRACK [2018-06-20 22:56:13,757 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-20 22:56:13,757 INFO ]: Difference is false [2018-06-20 22:56:13,757 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-20 22:56:13,757 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-20 22:56:13,775 INFO ]: Start isEmpty. Operand 114 states. [2018-06-20 22:56:13,789 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-20 22:56:13,789 INFO ]: Found error trace [2018-06-20 22:56:13,790 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-20 22:56:13,790 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-20 22:56:13,795 INFO ]: Analyzing trace with hash -1406416264, now seen corresponding path program 1 times [2018-06-20 22:56:13,797 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-20 22:56:13,797 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-20 22:56:13,831 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:13,831 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-20 22:56:13,831 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:13,883 INFO ]: Conjunction of SSA is unsat [2018-06-20 22:56:13,928 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-20 22:56:13,930 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-20 22:56:13,931 INFO ]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-06-20 22:56:13,933 INFO ]: Interpolant automaton has 2 states [2018-06-20 22:56:13,948 INFO ]: Constructing interpolant automaton starting with 2 interpolants. [2018-06-20 22:56:13,949 INFO ]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-20 22:56:13,951 INFO ]: Start difference. First operand 114 states. Second operand 2 states. [2018-06-20 22:56:13,995 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-20 22:56:13,995 INFO ]: Finished difference Result 112 states and 402 transitions. [2018-06-20 22:56:13,995 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-06-20 22:56:13,997 INFO ]: Start accepts. Automaton has 2 states. Word has length 6 [2018-06-20 22:56:13,998 INFO ]: Finished accepts. some prefix is accepted. [2018-06-20 22:56:14,015 INFO ]: With dead ends: 112 [2018-06-20 22:56:14,016 INFO ]: Without dead ends: 112 [2018-06-20 22:56:14,017 INFO ]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-06-20 22:56:14,048 INFO ]: Start minimizeSevpa. Operand 112 states. [2018-06-20 22:56:14,084 INFO ]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-06-20 22:56:14,086 INFO ]: Start removeUnreachable. Operand 112 states. [2018-06-20 22:56:14,090 INFO ]: Finished removeUnreachable. Reduced from 112 states to 112 states and 402 transitions. [2018-06-20 22:56:14,094 INFO ]: Start accepts. Automaton has 112 states and 402 transitions. Word has length 6 [2018-06-20 22:56:14,094 INFO ]: Finished accepts. word is rejected. [2018-06-20 22:56:14,094 INFO ]: Abstraction has 112 states and 402 transitions. [2018-06-20 22:56:14,094 INFO ]: Interpolant automaton has 2 states. [2018-06-20 22:56:14,094 INFO ]: Start isEmpty. Operand 112 states and 402 transitions. [2018-06-20 22:56:14,095 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-20 22:56:14,095 INFO ]: Found error trace [2018-06-20 22:56:14,096 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-20 22:56:14,096 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-20 22:56:14,096 INFO ]: Analyzing trace with hash -956178277, now seen corresponding path program 1 times [2018-06-20 22:56:14,096 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-20 22:56:14,096 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-20 22:56:14,097 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:14,097 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-20 22:56:14,097 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:14,273 INFO ]: Conjunction of SSA is unsat [2018-06-20 22:56:14,492 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-20 22:56:14,492 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-20 22:56:14,492 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-20 22:56:14,494 INFO ]: Interpolant automaton has 3 states [2018-06-20 22:56:14,494 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-20 22:56:14,494 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-20 22:56:14,494 INFO ]: Start difference. First operand 112 states and 402 transitions. Second operand 3 states. [2018-06-20 22:56:18,147 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-20 22:56:18,147 INFO ]: Finished difference Result 215 states and 795 transitions. [2018-06-20 22:56:18,148 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-20 22:56:18,148 INFO ]: Start accepts. Automaton has 3 states. Word has length 10 [2018-06-20 22:56:18,148 INFO ]: Finished accepts. some prefix is accepted. [2018-06-20 22:56:18,153 INFO ]: With dead ends: 215 [2018-06-20 22:56:18,153 INFO ]: Without dead ends: 215 [2018-06-20 22:56:18,154 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 [2018-06-20 22:56:18,154 INFO ]: Start minimizeSevpa. Operand 215 states. [2018-06-20 22:56:18,173 INFO ]: Finished minimizeSevpa. Reduced states from 215 to 113. [2018-06-20 22:56:18,173 INFO ]: Start removeUnreachable. Operand 113 states. [2018-06-20 22:56:18,175 INFO ]: Finished removeUnreachable. Reduced from 113 states to 113 states and 472 transitions. [2018-06-20 22:56:18,175 INFO ]: Start accepts. Automaton has 113 states and 472 transitions. Word has length 10 [2018-06-20 22:56:18,177 INFO ]: Finished accepts. word is rejected. [2018-06-20 22:56:18,177 INFO ]: Abstraction has 113 states and 472 transitions. [2018-06-20 22:56:18,177 INFO ]: Interpolant automaton has 3 states. [2018-06-20 22:56:18,177 INFO ]: Start isEmpty. Operand 113 states and 472 transitions. [2018-06-20 22:56:18,179 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-20 22:56:18,179 INFO ]: Found error trace [2018-06-20 22:56:18,179 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-20 22:56:18,179 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-20 22:56:18,179 INFO ]: Analyzing trace with hash -1919017533, now seen corresponding path program 1 times [2018-06-20 22:56:18,179 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-20 22:56:18,179 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-20 22:56:18,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:18,180 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-20 22:56:18,180 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-20 22:56:19,225 INFO ]: Conjunction of SSA is unsat Received shutdown request... [2018-06-20 22:56:19,553 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,553 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,553 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,554 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,556 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,647 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,648 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,648 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,648 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,649 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,649 WARN ]: Unable to check validity of interpolant: cancelled [2018-06-20 22:56:19,740 WARN ]: Verification canceled [2018-06-20 22:56:19,744 WARN ]: Timeout [2018-06-20 22:56:19,744 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 10:56:19 BoogieIcfgContainer [2018-06-20 22:56:19,744 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-20 22:56:19,745 INFO ]: Toolchain (without parser) took 47128.79 ms. Allocated memory was 1.2 GB in the beginning and 3.4 GB in the end (delta: 2.2 GB). Free memory was 901.7 MB in the beginning and 2.3 GB in the end (delta: -1.4 GB). Peak memory consumption was 749.3 MB. Max. memory is 7.1 GB. [2018-06-20 22:56:19,747 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2018-06-20 22:56:19,747 INFO ]: ChcToBoogie took 537.50 ms. Allocated memory is still 1.2 GB. Free memory was 901.7 MB in the beginning and 655.4 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 7.1 GB. [2018-06-20 22:56:19,747 INFO ]: Boogie Preprocessor took 1102.30 ms. Allocated memory is still 1.2 GB. Free memory was 655.4 MB in the beginning and 510.4 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 7.1 GB. [2018-06-20 22:56:19,747 INFO ]: RCFGBuilder took 39421.80 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.2 GB). Free memory was 510.4 MB in the beginning and 866.6 MB in the end (delta: -356.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-06-20 22:56:19,748 INFO ]: TraceAbstraction took 6058.64 ms. Allocated memory was 3.3 GB in the beginning and 3.4 GB in the end (delta: 15.2 MB). Free memory was 866.6 MB in the beginning and 2.3 GB in the end (delta: -1.5 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-06-20 22:56:19,749 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * ChcToBoogie took 537.50 ms. Allocated memory is still 1.2 GB. Free memory was 901.7 MB in the beginning and 655.4 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1102.30 ms. Allocated memory is still 1.2 GB. Free memory was 655.4 MB in the beginning and 510.4 MB in the end (delta: 145.0 MB). Peak memory consumption was 145.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 39421.80 ms. Allocated memory was 1.2 GB in the beginning and 3.3 GB in the end (delta: 2.2 GB). Free memory was 510.4 MB in the beginning and 866.6 MB in the end (delta: -356.2 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * TraceAbstraction took 6058.64 ms. Allocated memory was 3.3 GB in the beginning and 3.4 GB in the end (delta: 15.2 MB). Free memory was 866.6 MB in the beginning and 2.3 GB in the end (delta: -1.5 GB). There was no memory consumed. Max. memory is 7.1 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 12 with TraceHistMax 1, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while NestedInterpolantsBuilder was constructing predicates for 10 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 114 locations, 1 error locations. TIMEOUT Result, 5.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 736 SDtfs, 353 SDslu, 292 SDs, 0 SdLazy, 176 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, 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, 2 MinimizatonAttempts, 102 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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/chc-lia-0321.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-20_22-56-19-758.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/chc-lia-0321.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-20_22-56-19-758.csv Completed graceful shutdown