java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC_wBE.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/lustre/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-62c3406-m [2018-06-27 02:46:33,775 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-27 02:46:33,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-27 02:46:33,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-27 02:46:33,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-27 02:46:33,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-27 02:46:33,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-27 02:46:33,795 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-27 02:46:33,797 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-27 02:46:33,797 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-27 02:46:33,798 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-27 02:46:33,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-27 02:46:33,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-27 02:46:33,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-27 02:46:33,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-27 02:46:33,805 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-27 02:46:33,806 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-27 02:46:33,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-27 02:46:33,816 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-27 02:46:33,817 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-27 02:46:33,818 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-27 02:46:33,822 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-27 02:46:33,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-27 02:46:33,836 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-27 02:46:33,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-27 02:46:33,861 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-27 02:46:33,861 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-27 02:46:33,861 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-27 02:46:33,862 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-27 02:46:33,863 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-27 02:46:33,863 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-27 02:46:33,863 INFO L133 SettingsManager]: * Use SBE=true [2018-06-27 02:46:33,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-27 02:46:33,863 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-27 02:46:33,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-27 02:46:33,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-27 02:46:33,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-27 02:46:33,865 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-27 02:46:33,865 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-27 02:46:33,865 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-27 02:46:33,865 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-27 02:46:33,866 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-27 02:46:33,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-27 02:46:33,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-27 02:46:33,866 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-27 02:46:33,869 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-27 02:46:33,869 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-27 02:46:33,918 INFO ]: Repository-Root is: /tmp [2018-06-27 02:46:33,932 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-27 02:46:33,936 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-27 02:46:33,937 INFO ]: Initializing SmtParser... [2018-06-27 02:46:33,938 INFO ]: SmtParser initialized [2018-06-27 02:46:33,938 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2 [2018-06-27 02:46:33,939 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 [2018-06-27 02:46:34,020 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2 unknown [2018-06-27 02:46:34,484 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2 [2018-06-27 02:46:34,489 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-27 02:46:34,494 INFO ]: Walking toolchain with 5 elements. [2018-06-27 02:46:34,495 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-27 02:46:34,495 INFO ]: Initializing ChcToBoogie... [2018-06-27 02:46:34,495 INFO ]: ChcToBoogie initialized [2018-06-27 02:46:34,498 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,556 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34 Unit [2018-06-27 02:46:34,556 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-27 02:46:34,557 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-27 02:46:34,557 INFO ]: Initializing Boogie Preprocessor... [2018-06-27 02:46:34,557 INFO ]: Boogie Preprocessor initialized [2018-06-27 02:46:34,577 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,577 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,584 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,585 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,589 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,591 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,592 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,595 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-27 02:46:34,595 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-27 02:46:34,595 INFO ]: Initializing RCFGBuilder... [2018-06-27 02:46:34,595 INFO ]: RCFGBuilder initialized [2018-06-27 02:46:34,596 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (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) [2018-06-27 02:46:34,627 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-27 02:46:34,628 INFO ]: Found specification of procedure gotoProc [2018-06-27 02:46:34,628 INFO ]: Found implementation of procedure gotoProc [2018-06-27 02:46:34,628 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-27 02:46:34,628 INFO ]: Found specification of procedure Ultimate.START [2018-06-27 02:46:34,628 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 [2018-06-27 02:46:34,970 INFO ]: Using library mode [2018-06-27 02:46:34,971 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 02:46:34 BoogieIcfgContainer [2018-06-27 02:46:34,971 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-27 02:46:34,971 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-27 02:46:34,971 INFO ]: Initializing BlockEncodingV2... [2018-06-27 02:46:34,973 INFO ]: BlockEncodingV2 initialized [2018-06-27 02:46:34,973 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 02:46:34" (1/1) ... [2018-06-27 02:46:34,991 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-27 02:46:34,993 INFO ]: Using Remove infeasible edges [2018-06-27 02:46:34,993 INFO ]: Using Maximize final states [2018-06-27 02:46:34,994 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-27 02:46:34,994 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-27 02:46:34,996 INFO ]: Using Remove sink states [2018-06-27 02:46:34,999 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-27 02:46:34,999 INFO ]: Using Use SBE [2018-06-27 02:46:35,006 WARN ]: expecting exponential blowup for input size 13 [2018-06-27 02:46:36,514 WARN ]: aborting because of expected exponential blowup for input size 54 [2018-06-27 02:46:36,519 WARN ]: expecting exponential blowup for input size 14 [2018-06-27 02:46:42,150 WARN ]: aborting because of expected exponential blowup for input size 54 [2018-06-27 02:46:42,179 INFO ]: SBE split 2 edges [2018-06-27 02:46:42,278 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-27 02:46:42,281 INFO ]: 0 new accepting states [2018-06-27 02:47:09,314 INFO ]: Removed 4554 edges and 2 locations by large block encoding [2018-06-27 02:47:09,317 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 02:47:09,526 INFO ]: Removed 18 edges and 0 locations because of local infeasibility [2018-06-27 02:47:09,528 INFO ]: 0 new accepting states [2018-06-27 02:47:09,531 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-27 02:47:09,532 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 02:47:09,652 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-27 02:47:09,654 INFO ]: 0 new accepting states [2018-06-27 02:47:09,656 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-27 02:47:09,657 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-27 02:47:09,822 INFO ]: Encoded RCFG 6 locations, 4538 edges [2018-06-27 02:47:09,822 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 27.06 02:47:09 BasicIcfg [2018-06-27 02:47:09,822 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-27 02:47:09,823 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-27 02:47:09,823 INFO ]: Initializing TraceAbstraction... [2018-06-27 02:47:09,826 INFO ]: TraceAbstraction initialized [2018-06-27 02:47:09,826 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 27.06 02:46:34" (1/4) ... [2018-06-27 02:47:09,828 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1738a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 27.06 02:47:09, skipping insertion in model container [2018-06-27 02:47:09,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 27.06 02:46:34" (2/4) ... [2018-06-27 02:47:09,828 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1738a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 02:47:09, skipping insertion in model container [2018-06-27 02:47:09,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 02:46:34" (3/4) ... [2018-06-27 02:47:09,828 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1738a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 02:47:09, skipping insertion in model container [2018-06-27 02:47:09,828 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 27.06 02:47:09" (4/4) ... [2018-06-27 02:47:09,830 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-27 02:47:09,841 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-27 02:47:09,846 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-27 02:47:09,879 INFO ]: Using default assertion order modulation [2018-06-27 02:47:09,879 INFO ]: Interprodecural is true [2018-06-27 02:47:09,879 INFO ]: Hoare is false [2018-06-27 02:47:09,879 INFO ]: Compute interpolants for FPandBP [2018-06-27 02:47:09,879 INFO ]: Backedges is TWOTRACK [2018-06-27 02:47:09,880 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-27 02:47:09,880 INFO ]: Difference is false [2018-06-27 02:47:09,880 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-27 02:47:09,880 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-27 02:47:09,905 INFO ]: Start isEmpty. Operand 6 states. [2018-06-27 02:47:09,933 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-27 02:47:09,933 INFO ]: Found error trace [2018-06-27 02:47:09,934 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-27 02:47:09,934 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-27 02:47:09,940 INFO ]: Analyzing trace with hash 287462291, now seen corresponding path program 1 times [2018-06-27 02:47:09,941 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-27 02:47:09,942 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-27 02:47:09,989 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:09,989 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-27 02:47:09,989 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:10,044 INFO ]: Conjunction of SSA is unsat [2018-06-27 02:47:10,145 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-27 02:47:10,148 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-27 02:47:10,148 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-27 02:47:10,150 INFO ]: Interpolant automaton has 3 states [2018-06-27 02:47:10,164 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-27 02:47:10,165 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-27 02:47:10,167 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-27 02:47:18,808 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-27 02:47:18,808 INFO ]: Finished difference Result 8 states and 4558 transitions. [2018-06-27 02:47:18,811 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-27 02:47:18,812 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-27 02:47:18,812 INFO ]: Finished accepts. some prefix is accepted. [2018-06-27 02:47:18,840 INFO ]: With dead ends: 8 [2018-06-27 02:47:18,840 INFO ]: Without dead ends: 8 [2018-06-27 02:47:18,852 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 [2018-06-27 02:47:18,868 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-27 02:47:18,943 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-06-27 02:47:18,945 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-27 02:47:18,953 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 4557 transitions. [2018-06-27 02:47:18,955 INFO ]: Start accepts. Automaton has 7 states and 4557 transitions. Word has length 5 [2018-06-27 02:47:18,956 INFO ]: Finished accepts. word is rejected. [2018-06-27 02:47:18,956 INFO ]: Abstraction has 7 states and 4557 transitions. [2018-06-27 02:47:18,956 INFO ]: Interpolant automaton has 3 states. [2018-06-27 02:47:18,956 INFO ]: Start isEmpty. Operand 7 states and 4557 transitions. [2018-06-27 02:47:18,958 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-27 02:47:18,958 INFO ]: Found error trace [2018-06-27 02:47:18,958 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-27 02:47:18,958 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-27 02:47:18,958 INFO ]: Analyzing trace with hash 287629505, now seen corresponding path program 1 times [2018-06-27 02:47:18,958 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-27 02:47:18,958 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-27 02:47:18,959 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:18,959 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-27 02:47:18,959 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:18,985 INFO ]: Conjunction of SSA is unsat [2018-06-27 02:47:19,038 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-27 02:47:19,038 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-27 02:47:19,038 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-27 02:47:19,039 INFO ]: Interpolant automaton has 3 states [2018-06-27 02:47:19,040 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-27 02:47:19,040 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-27 02:47:19,040 INFO ]: Start difference. First operand 7 states and 4557 transitions. Second operand 3 states. [2018-06-27 02:47:26,797 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-27 02:47:26,797 INFO ]: Finished difference Result 10 states and 4800 transitions. [2018-06-27 02:47:26,797 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-27 02:47:26,797 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-27 02:47:26,797 INFO ]: Finished accepts. some prefix is accepted. [2018-06-27 02:47:26,804 INFO ]: With dead ends: 10 [2018-06-27 02:47:26,804 INFO ]: Without dead ends: 10 [2018-06-27 02:47:26,805 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 [2018-06-27 02:47:26,805 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-27 02:47:26,825 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-06-27 02:47:26,825 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-27 02:47:26,832 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4799 transitions. [2018-06-27 02:47:26,832 INFO ]: Start accepts. Automaton has 9 states and 4799 transitions. Word has length 5 [2018-06-27 02:47:26,832 INFO ]: Finished accepts. word is rejected. [2018-06-27 02:47:26,832 INFO ]: Abstraction has 9 states and 4799 transitions. [2018-06-27 02:47:26,832 INFO ]: Interpolant automaton has 3 states. [2018-06-27 02:47:26,832 INFO ]: Start isEmpty. Operand 9 states and 4799 transitions. [2018-06-27 02:47:26,835 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-27 02:47:26,835 INFO ]: Found error trace [2018-06-27 02:47:26,835 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-27 02:47:26,835 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-27 02:47:26,835 INFO ]: Analyzing trace with hash 287537249, now seen corresponding path program 1 times [2018-06-27 02:47:26,835 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-27 02:47:26,835 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-27 02:47:26,836 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:26,836 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-27 02:47:26,836 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-27 02:47:26,858 INFO ]: Conjunction of SSA is unsat [2018-06-27 02:47:26,943 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-27 02:47:26,944 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-27 02:47:26,944 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-27 02:47:26,944 INFO ]: Interpolant automaton has 3 states [2018-06-27 02:47:26,944 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-27 02:47:26,944 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-27 02:47:26,944 INFO ]: Start difference. First operand 9 states and 4799 transitions. Second operand 3 states. Received shutdown request... [2018-06-27 02:47:32,106 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-27 02:47:32,106 WARN ]: Verification canceled [2018-06-27 02:47:32,109 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-27 02:47:32,109 WARN ]: Timeout [2018-06-27 02:47:32,110 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 02:47:32 BasicIcfg [2018-06-27 02:47:32,110 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-27 02:47:32,111 INFO ]: Toolchain (without parser) took 57621.09 ms. Allocated memory was 305.7 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 253.0 MB in the beginning and 601.5 MB in the end (delta: -348.5 MB). Peak memory consumption was 766.1 MB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,112 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-27 02:47:32,112 INFO ]: ChcToBoogie took 62.02 ms. Allocated memory is still 305.7 MB. Free memory was 253.0 MB in the beginning and 250.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,113 INFO ]: Boogie Preprocessor took 37.80 ms. Allocated memory is still 305.7 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,114 INFO ]: RCFGBuilder took 375.91 ms. Allocated memory is still 305.7 MB. Free memory was 248.0 MB in the beginning and 227.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,114 INFO ]: BlockEncodingV2 took 34850.74 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 227.0 MB in the beginning and 989.5 MB in the end (delta: -762.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,115 INFO ]: TraceAbstraction took 22286.73 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -58.2 MB). Free memory was 989.5 MB in the beginning and 601.5 MB in the end (delta: 388.0 MB). Peak memory consumption was 329.8 MB. Max. memory is 3.6 GB. [2018-06-27 02:47:32,123 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 10 edges - StatisticsResult: Encoded RCFG 6 locations, 4538 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 62.02 ms. Allocated memory is still 305.7 MB. Free memory was 253.0 MB in the beginning and 250.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 37.80 ms. Allocated memory is still 305.7 MB. Free memory was 250.0 MB in the beginning and 248.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 375.91 ms. Allocated memory is still 305.7 MB. Free memory was 248.0 MB in the beginning and 227.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 34850.74 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 227.0 MB in the beginning and 989.5 MB in the end (delta: -762.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 3.6 GB. * TraceAbstraction took 22286.73 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -58.2 MB). Free memory was 989.5 MB in the beginning and 601.5 MB in the end (delta: 388.0 MB). Peak memory consumption was 329.8 MB. 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 Cancelled while BasicCegarLoop was constructing difference of abstraction (9states) and interpolant automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (2 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. TIMEOUT Result, 22.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 21.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12961 SDtfs, 258 SDslu, 55 SDs, 0 SdLazy, 6976 SolverSat, 6968 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-27_02-47-32-138.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-27_02-47-32-138.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-27_02-47-32-138.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/PRODUCER_CONSUMER_vt_e7_1059_e8_1111.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-27_02-47-32-138.csv Completed graceful shutdown