java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf -i /storage/chc-comp/eldarica-misc/LIA/reve/017b-horn.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 11:17:28,981 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 11:17:28,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 11:17:28,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 11:17:28,995 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 11:17:28,996 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 11:17:28,997 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 11:17:29,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 11:17:29,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 11:17:29,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 11:17:29,003 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 11:17:29,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 11:17:29,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 11:17:29,005 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 11:17:29,006 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 11:17:29,006 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 11:17:29,008 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 11:17:29,010 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 11:17:29,011 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 11:17:29,012 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 11:17:29,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 11:17:29,016 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 11:17:29,016 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 11:17:29,016 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 11:17:29,017 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 11:17:29,018 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 11:17:29,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 11:17:29,020 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 11:17:29,021 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 11:17:29,021 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 11:17:29,022 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 11:17:29,022 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 11:17:29,022 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 11:17:29,023 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 11:17:29,024 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 11:17:29,024 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 11:17:29,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 11:17:29,038 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 11:17:29,038 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 11:17:29,038 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 11:17:29,039 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 11:17:29,039 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 11:17:29,040 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 11:17:29,040 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 11:17:29,040 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 11:17:29,040 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 11:17:29,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:17:29,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 11:17:29,041 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 11:17:29,041 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 11:17:29,041 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 11:17:29,042 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 11:17:29,042 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 11:17:29,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 11:17:29,042 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 11:17:29,044 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 11:17:29,044 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 11:17:29,081 INFO ]: Repository-Root is: /tmp [2018-06-22 11:17:29,096 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 11:17:29,101 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 11:17:29,103 INFO ]: Initializing SmtParser... [2018-06-22 11:17:29,103 INFO ]: SmtParser initialized [2018-06-22 11:17:29,104 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/reve/017b-horn.smt2 [2018-06-22 11:17:29,105 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-22 11:17:29,200 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/reve/017b-horn.smt2 unknown [2018-06-22 11:17:29,386 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/reve/017b-horn.smt2 [2018-06-22 11:17:29,395 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 11:17:29,400 INFO ]: Walking toolchain with 4 elements. [2018-06-22 11:17:29,403 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 11:17:29,404 INFO ]: Initializing ChcToBoogie... [2018-06-22 11:17:29,404 INFO ]: ChcToBoogie initialized [2018-06-22 11:17:29,407 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,453 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29 Unit [2018-06-22 11:17:29,454 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 11:17:29,455 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 11:17:29,455 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 11:17:29,455 INFO ]: Boogie Preprocessor initialized [2018-06-22 11:17:29,477 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,477 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,484 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,485 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,488 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,490 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,490 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... [2018-06-22 11:17:29,492 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 11:17:29,493 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 11:17:29,493 INFO ]: Initializing RCFGBuilder... [2018-06-22 11:17:29,493 INFO ]: RCFGBuilder initialized [2018-06-22 11:17:29,494 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-22 11:17:29,509 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 11:17:29,509 INFO ]: Found specification of procedure False [2018-06-22 11:17:29,509 INFO ]: Found implementation of procedure False [2018-06-22 11:17:29,509 INFO ]: Specification and implementation of procedure INV1 given in one single declaration [2018-06-22 11:17:29,509 INFO ]: Found specification of procedure INV1 [2018-06-22 11:17:29,509 INFO ]: Found implementation of procedure INV1 [2018-06-22 11:17:29,509 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 11:17:29,509 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 11:17:29,509 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 11:17:29,700 INFO ]: Using library mode [2018-06-22 11:17:29,701 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:29 BoogieIcfgContainer [2018-06-22 11:17:29,701 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 11:17:29,702 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 11:17:29,702 INFO ]: Initializing TraceAbstraction... [2018-06-22 11:17:29,713 INFO ]: TraceAbstraction initialized [2018-06-22 11:17:29,713 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 11:17:29" (1/3) ... [2018-06-22 11:17:29,714 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 11:17:29, skipping insertion in model container [2018-06-22 11:17:29,714 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 11:17:29" (2/3) ... [2018-06-22 11:17:29,714 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 11:17:29, skipping insertion in model container [2018-06-22 11:17:29,714 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 11:17:29" (3/3) ... [2018-06-22 11:17:29,716 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 11:17:29,725 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 11:17:29,747 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 11:17:29,803 INFO ]: Using default assertion order modulation [2018-06-22 11:17:29,803 INFO ]: Interprodecural is true [2018-06-22 11:17:29,804 INFO ]: Hoare is false [2018-06-22 11:17:29,804 INFO ]: Compute interpolants for FPandBP [2018-06-22 11:17:29,804 INFO ]: Backedges is TWOTRACK [2018-06-22 11:17:29,804 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 11:17:29,804 INFO ]: Difference is false [2018-06-22 11:17:29,804 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 11:17:29,804 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 11:17:29,818 INFO ]: Start isEmpty. Operand 15 states. [2018-06-22 11:17:29,828 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 11:17:29,828 INFO ]: Found error trace [2018-06-22 11:17:29,831 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:29,831 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:29,836 INFO ]: Analyzing trace with hash -1122768265, now seen corresponding path program 1 times [2018-06-22 11:17:29,838 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:29,838 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:29,872 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:29,872 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:29,872 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:29,920 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,057 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 11:17:30,059 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,059 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,060 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,070 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,071 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,072 INFO ]: Start difference. First operand 15 states. Second operand 4 states. [2018-06-22 11:17:30,180 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,180 INFO ]: Finished difference Result 15 states and 22 transitions. [2018-06-22 11:17:30,180 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,181 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 11:17:30,181 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,190 INFO ]: With dead ends: 15 [2018-06-22 11:17:30,190 INFO ]: Without dead ends: 15 [2018-06-22 11:17:30,191 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,205 INFO ]: Start minimizeSevpa. Operand 15 states. [2018-06-22 11:17:30,225 INFO ]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-06-22 11:17:30,226 INFO ]: Start removeUnreachable. Operand 15 states. [2018-06-22 11:17:30,226 INFO ]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2018-06-22 11:17:30,227 INFO ]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 9 [2018-06-22 11:17:30,228 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,228 INFO ]: Abstraction has 15 states and 22 transitions. [2018-06-22 11:17:30,228 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,228 INFO ]: Start isEmpty. Operand 15 states and 22 transitions. [2018-06-22 11:17:30,229 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,229 INFO ]: Found error trace [2018-06-22 11:17:30,230 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,230 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,230 INFO ]: Analyzing trace with hash -1863190075, now seen corresponding path program 1 times [2018-06-22 11:17:30,230 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,230 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,231 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,231 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,231 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,248 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,311 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:30,311 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,311 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,313 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,313 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,313 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,313 INFO ]: Start difference. First operand 15 states and 22 transitions. Second operand 4 states. [2018-06-22 11:17:30,644 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,645 INFO ]: Finished difference Result 19 states and 30 transitions. [2018-06-22 11:17:30,645 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,645 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:30,645 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,646 INFO ]: With dead ends: 19 [2018-06-22 11:17:30,646 INFO ]: Without dead ends: 19 [2018-06-22 11:17:30,647 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,647 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:30,658 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-06-22 11:17:30,658 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 11:17:30,659 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-06-22 11:17:30,659 INFO ]: Start accepts. Automaton has 17 states and 25 transitions. Word has length 13 [2018-06-22 11:17:30,659 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,659 INFO ]: Abstraction has 17 states and 25 transitions. [2018-06-22 11:17:30,659 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,659 INFO ]: Start isEmpty. Operand 17 states and 25 transitions. [2018-06-22 11:17:30,661 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,661 INFO ]: Found error trace [2018-06-22 11:17:30,661 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,661 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,661 INFO ]: Analyzing trace with hash -2108440928, now seen corresponding path program 1 times [2018-06-22 11:17:30,661 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,661 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,662 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,662 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,674 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:30,729 INFO ]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 11:17:30,730 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:30,730 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 11:17:30,730 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:30,730 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:30,730 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,730 INFO ]: Start difference. First operand 17 states and 25 transitions. Second operand 4 states. [2018-06-22 11:17:30,817 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:30,817 INFO ]: Finished difference Result 19 states and 28 transitions. [2018-06-22 11:17:30,817 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 11:17:30,817 INFO ]: Start accepts. Automaton has 4 states. Word has length 13 [2018-06-22 11:17:30,817 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:30,818 INFO ]: With dead ends: 19 [2018-06-22 11:17:30,818 INFO ]: Without dead ends: 19 [2018-06-22 11:17:30,818 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:30,818 INFO ]: Start minimizeSevpa. Operand 19 states. [2018-06-22 11:17:30,824 INFO ]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-06-22 11:17:30,824 INFO ]: Start removeUnreachable. Operand 19 states. [2018-06-22 11:17:30,825 INFO ]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2018-06-22 11:17:30,825 INFO ]: Start accepts. Automaton has 19 states and 28 transitions. Word has length 13 [2018-06-22 11:17:30,825 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:30,825 INFO ]: Abstraction has 19 states and 28 transitions. [2018-06-22 11:17:30,825 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:30,825 INFO ]: Start isEmpty. Operand 19 states and 28 transitions. [2018-06-22 11:17:30,826 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 11:17:30,827 INFO ]: Found error trace [2018-06-22 11:17:30,827 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:30,827 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:30,827 INFO ]: Analyzing trace with hash 1548248505, now seen corresponding path program 1 times [2018-06-22 11:17:30,827 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:30,827 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:30,828 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,828 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:30,828 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:30,840 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,020 INFO ]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:31,020 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:31,020 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:17:31,020 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:17:31,021 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:17:31,021 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:31,021 INFO ]: Start difference. First operand 19 states and 28 transitions. Second operand 5 states. [2018-06-22 11:17:31,142 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:31,142 INFO ]: Finished difference Result 21 states and 32 transitions. [2018-06-22 11:17:31,142 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:17:31,142 INFO ]: Start accepts. Automaton has 5 states. Word has length 13 [2018-06-22 11:17:31,142 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:31,143 INFO ]: With dead ends: 21 [2018-06-22 11:17:31,143 INFO ]: Without dead ends: 21 [2018-06-22 11:17:31,143 INFO ]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:31,144 INFO ]: Start minimizeSevpa. Operand 21 states. [2018-06-22 11:17:31,150 INFO ]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-06-22 11:17:31,150 INFO ]: Start removeUnreachable. Operand 21 states. [2018-06-22 11:17:31,151 INFO ]: Finished removeUnreachable. Reduced from 21 states to 21 states and 32 transitions. [2018-06-22 11:17:31,151 INFO ]: Start accepts. Automaton has 21 states and 32 transitions. Word has length 13 [2018-06-22 11:17:31,151 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:31,151 INFO ]: Abstraction has 21 states and 32 transitions. [2018-06-22 11:17:31,151 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:17:31,151 INFO ]: Start isEmpty. Operand 21 states and 32 transitions. [2018-06-22 11:17:31,152 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:31,153 INFO ]: Found error trace [2018-06-22 11:17:31,153 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:31,153 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:31,153 INFO ]: Analyzing trace with hash 1273493346, now seen corresponding path program 1 times [2018-06-22 11:17:31,153 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:31,153 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:31,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,154 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:31,154 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,172 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,231 INFO ]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:17:31,231 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 11:17:31,231 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-22 11:17:31,232 INFO ]: Interpolant automaton has 5 states [2018-06-22 11:17:31,232 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 11:17:31,232 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:31,232 INFO ]: Start difference. First operand 21 states and 32 transitions. Second operand 5 states. [2018-06-22 11:17:31,322 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:31,322 INFO ]: Finished difference Result 19 states and 26 transitions. [2018-06-22 11:17:31,323 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 11:17:31,323 INFO ]: Start accepts. Automaton has 5 states. Word has length 17 [2018-06-22 11:17:31,323 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:31,323 INFO ]: With dead ends: 19 [2018-06-22 11:17:31,323 INFO ]: Without dead ends: 18 [2018-06-22 11:17:31,324 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-22 11:17:31,324 INFO ]: Start minimizeSevpa. Operand 18 states. [2018-06-22 11:17:31,328 INFO ]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-06-22 11:17:31,328 INFO ]: Start removeUnreachable. Operand 16 states. [2018-06-22 11:17:31,329 INFO ]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-06-22 11:17:31,329 INFO ]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 17 [2018-06-22 11:17:31,329 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:31,329 INFO ]: Abstraction has 16 states and 20 transitions. [2018-06-22 11:17:31,329 INFO ]: Interpolant automaton has 5 states. [2018-06-22 11:17:31,329 INFO ]: Start isEmpty. Operand 16 states and 20 transitions. [2018-06-22 11:17:31,330 INFO ]: Finished isEmpty. Found accepting run of length 18 [2018-06-22 11:17:31,330 INFO ]: Found error trace [2018-06-22 11:17:31,330 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:31,330 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:31,330 INFO ]: Analyzing trace with hash 35866887, now seen corresponding path program 1 times [2018-06-22 11:17:31,330 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:31,330 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:31,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,331 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:31,331 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:31,343 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,486 INFO ]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-06-22 11:17:31,486 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:31,486 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:31,500 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:31,553 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:31,562 INFO ]: Computing forward predicates... [2018-06-22 11:17:31,879 INFO ]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-06-22 11:17:31,902 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:31,902 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2018-06-22 11:17:31,902 INFO ]: Interpolant automaton has 12 states [2018-06-22 11:17:31,902 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 11:17:31,902 INFO ]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-06-22 11:17:31,902 INFO ]: Start difference. First operand 16 states and 20 transitions. Second operand 12 states. [2018-06-22 11:17:32,589 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:32,589 INFO ]: Finished difference Result 24 states and 33 transitions. [2018-06-22 11:17:32,590 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-22 11:17:32,590 INFO ]: Start accepts. Automaton has 12 states. Word has length 17 [2018-06-22 11:17:32,590 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:32,590 INFO ]: With dead ends: 24 [2018-06-22 11:17:32,591 INFO ]: Without dead ends: 24 [2018-06-22 11:17:32,591 INFO ]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2018-06-22 11:17:32,591 INFO ]: Start minimizeSevpa. Operand 24 states. [2018-06-22 11:17:32,597 INFO ]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-06-22 11:17:32,597 INFO ]: Start removeUnreachable. Operand 18 states. [2018-06-22 11:17:32,598 INFO ]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-06-22 11:17:32,598 INFO ]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 17 [2018-06-22 11:17:32,598 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:32,598 INFO ]: Abstraction has 18 states and 23 transitions. [2018-06-22 11:17:32,598 INFO ]: Interpolant automaton has 12 states. [2018-06-22 11:17:32,598 INFO ]: Start isEmpty. Operand 18 states and 23 transitions. [2018-06-22 11:17:32,599 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 11:17:32,599 INFO ]: Found error trace [2018-06-22 11:17:32,599 INFO ]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 11:17:32,599 INFO ]: === Iteration 7 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 11:17:32,599 INFO ]: Analyzing trace with hash 1085301065, now seen corresponding path program 2 times [2018-06-22 11:17:32,599 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 11:17:32,599 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 11:17:32,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:32,600 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 11:17:32,600 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 11:17:32,622 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:32,761 INFO ]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:17:32,761 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 11:17:32,761 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 11:17:32,775 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 11:17:32,813 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 11:17:32,813 INFO ]: Conjunction of SSA is unsat [2018-06-22 11:17:32,815 INFO ]: Computing forward predicates... [2018-06-22 11:17:32,852 INFO ]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-06-22 11:17:32,881 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 11:17:32,881 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 11:17:32,882 INFO ]: Interpolant automaton has 4 states [2018-06-22 11:17:32,882 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 11:17:32,882 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 11:17:32,882 INFO ]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2018-06-22 11:17:32,987 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 11:17:32,987 INFO ]: Finished difference Result 18 states and 23 transitions. [2018-06-22 11:17:32,988 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 11:17:32,988 INFO ]: Start accepts. Automaton has 4 states. Word has length 21 [2018-06-22 11:17:32,988 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 11:17:32,988 INFO ]: With dead ends: 18 [2018-06-22 11:17:32,988 INFO ]: Without dead ends: 0 [2018-06-22 11:17:32,988 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 11:17:32,988 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-22 11:17:32,988 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-22 11:17:32,988 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-22 11:17:32,988 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-22 11:17:32,988 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-06-22 11:17:32,988 INFO ]: Finished accepts. word is rejected. [2018-06-22 11:17:32,988 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-22 11:17:32,989 INFO ]: Interpolant automaton has 4 states. [2018-06-22 11:17:32,989 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-22 11:17:32,989 INFO ]: Finished isEmpty. No accepting run. [2018-06-22 11:17:32,994 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 11:17:32 BoogieIcfgContainer [2018-06-22 11:17:32,994 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 11:17:32,994 INFO ]: Toolchain (without parser) took 3598.81 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 262.7 MB in the beginning and 217.4 MB in the end (delta: 45.3 MB). Peak memory consumption was 63.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,996 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 11:17:32,996 INFO ]: ChcToBoogie took 51.51 ms. Allocated memory is still 308.3 MB. Free memory was 262.7 MB in the beginning and 260.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,997 INFO ]: Boogie Preprocessor took 36.89 ms. Allocated memory is still 308.3 MB. Free memory was 260.7 MB in the beginning and 259.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,998 INFO ]: RCFGBuilder took 208.23 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 251.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:32,998 INFO ]: TraceAbstraction took 3291.51 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 250.7 MB in the beginning and 217.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 51.1 MB. Max. memory is 3.6 GB. [2018-06-22 11:17:33,014 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 308.3 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 51.51 ms. Allocated memory is still 308.3 MB. Free memory was 262.7 MB in the beginning and 260.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 36.89 ms. Allocated memory is still 308.3 MB. Free memory was 260.7 MB in the beginning and 259.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 208.23 ms. Allocated memory is still 308.3 MB. Free memory was 258.7 MB in the beginning and 251.7 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 3291.51 ms. Allocated memory was 308.3 MB in the beginning and 326.1 MB in the end (delta: 17.8 MB). Free memory was 250.7 MB in the beginning and 217.4 MB in the end (delta: 33.3 MB). Peak memory consumption was 51.1 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 108 SDtfs, 21 SDslu, 154 SDs, 0 SdLazy, 250 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 6188 SizeOfPredicates, 10 NumberOfNonLiveVariables, 246 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 62/74 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/017b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_11-17-33-025.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/017b-horn.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_11-17-33-025.csv Received shutdown request...