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/eldarica-misc/LIA/Consistency/giftwrapping.26.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:26:49,528 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:26:49,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:26:49,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:26:49,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:26:49,543 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:26:49,544 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:26:49,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:26:49,550 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:26:49,550 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:26:49,553 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:26:49,554 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:26:49,555 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:26:49,556 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:26:49,557 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:26:49,560 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:26:49,561 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:26:49,575 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:26:49,576 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:26:49,577 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:26:49,578 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:26:49,580 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:26:49,580 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:26:49,581 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:26:49,581 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:26:49,582 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:26:49,589 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:26:49,590 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:26:49,593 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:26:49,593 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:26:49,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:26:49,594 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:26:49,594 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:26:49,595 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:26:49,596 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:26:49,596 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:26:49,609 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:26:49,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:26:49,610 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:26:49,610 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:26:49,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:26:49,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:26:49,611 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:26:49,612 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:26:49,612 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:26:49,612 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:26:49,612 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:26:49,613 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:26:49,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:26:49,613 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:26:49,613 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:26:49,613 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:26:49,614 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:26:49,614 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:26:49,614 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:26:49,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:26:49,614 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:26:49,616 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:26:49,616 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:26:49,672 INFO ]: Repository-Root is: /tmp [2018-06-24 20:26:49,687 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:26:49,693 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:26:49,695 INFO ]: Initializing SmtParser... [2018-06-24 20:26:49,695 INFO ]: SmtParser initialized [2018-06-24 20:26:49,695 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/giftwrapping.26.smt2 [2018-06-24 20:26:49,697 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 [2018-06-24 20:26:49,786 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/giftwrapping.26.smt2 unknown [2018-06-24 20:26:50,300 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/giftwrapping.26.smt2 [2018-06-24 20:26:50,308 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:26:50,315 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:26:50,315 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:26:50,315 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:26:50,315 INFO ]: ChcToBoogie initialized [2018-06-24 20:26:50,318 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,399 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50 Unit [2018-06-24 20:26:50,399 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:26:50,400 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:26:50,400 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:26:50,400 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:26:50,421 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,421 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,445 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,445 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,470 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,474 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,479 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (1/1) ... [2018-06-24 20:26:50,484 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:26:50,485 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:26:50,485 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:26:50,485 INFO ]: RCFGBuilder initialized [2018-06-24 20:26:50,485 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (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) [2018-06-24 20:26:50,506 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:26:50,506 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:26:50,506 INFO ]: Found implementation of procedure gotoProc Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:26:50,506 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:26:50,506 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:26:50,506 INFO ]: Found implementation of procedure Ultimate.START [2018-06-24 20:26:51,943 INFO ]: Using library mode [2018-06-24 20:26:51,944 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:26:51 BoogieIcfgContainer [2018-06-24 20:26:51,944 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:26:51,945 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:26:51,945 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:26:51,946 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:26:51,946 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:26:51" (1/1) ... [2018-06-24 20:26:52,001 INFO ]: Initial Icfg 145 locations, 279 edges [2018-06-24 20:26:52,003 INFO ]: Using Remove infeasible edges [2018-06-24 20:26:52,003 INFO ]: Using Maximize final states [2018-06-24 20:26:52,004 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:26:52,004 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:26:52,006 INFO ]: Using Remove sink states [2018-06-24 20:26:52,009 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:26:52,009 INFO ]: Using Use SBE [2018-06-24 20:26:52,032 INFO ]: SBE split 0 edges [2018-06-24 20:26:52,042 INFO ]: Removed 3 edges and 2 locations because of local infeasibility [2018-06-24 20:26:52,045 INFO ]: 0 new accepting states [2018-06-24 20:26:52,859 INFO ]: Removed 55 edges and 9 locations by large block encoding [2018-06-24 20:26:52,862 INFO ]: Removed 1 edges and 1 locations by removing sink states [2018-06-24 20:26:52,866 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:26:52,867 INFO ]: 0 new accepting states [2018-06-24 20:26:52,869 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:26:52,871 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:26:52,872 INFO ]: Encoded RCFG 133 locations, 266 edges [2018-06-24 20:26:52,873 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:26:52 BasicIcfg [2018-06-24 20:26:52,873 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:26:52,874 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:26:52,874 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:26:52,877 INFO ]: TraceAbstraction initialized [2018-06-24 20:26:52,877 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:26:50" (1/4) ... [2018-06-24 20:26:52,878 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b266d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:26:52, skipping insertion in model container [2018-06-24 20:26:52,878 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:26:50" (2/4) ... [2018-06-24 20:26:52,878 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b266d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:26:52, skipping insertion in model container [2018-06-24 20:26:52,878 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:26:51" (3/4) ... [2018-06-24 20:26:52,879 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b266d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:26:52, skipping insertion in model container [2018-06-24 20:26:52,879 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:26:52" (4/4) ... [2018-06-24 20:26:52,881 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:26:52,890 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:26:52,898 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:26:52,935 INFO ]: Using default assertion order modulation [2018-06-24 20:26:52,935 INFO ]: Interprodecural is true [2018-06-24 20:26:52,935 INFO ]: Hoare is false [2018-06-24 20:26:52,935 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:26:52,935 INFO ]: Backedges is TWOTRACK [2018-06-24 20:26:52,935 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:26:52,935 INFO ]: Difference is false [2018-06-24 20:26:52,935 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:26:52,935 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:26:52,949 INFO ]: Start isEmpty. Operand 133 states. [2018-06-24 20:26:52,990 INFO ]: Finished isEmpty. Found accepting run of length 5 [2018-06-24 20:26:52,990 INFO ]: Found error trace [2018-06-24 20:26:52,991 INFO ]: trace histogram [1, 1, 1, 1] [2018-06-24 20:26:52,991 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:26:52,996 INFO ]: Analyzing trace with hash 5569161, now seen corresponding path program 1 times [2018-06-24 20:26:52,998 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:26:52,998 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:26:53,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:53,029 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:26:53,029 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:53,095 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:26:53,266 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:26:53,269 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:26:53,270 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:26:53,272 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:26:53,288 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:26:53,288 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:26:53,291 INFO ]: Start difference. First operand 133 states. Second operand 3 states. [2018-06-24 20:26:55,451 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:26:55,451 INFO ]: Finished difference Result 134 states and 363 transitions. [2018-06-24 20:26:55,452 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:26:55,453 INFO ]: Start accepts. Automaton has 3 states. Word has length 4 [2018-06-24 20:26:55,453 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:26:55,489 INFO ]: With dead ends: 134 [2018-06-24 20:26:55,489 INFO ]: Without dead ends: 134 [2018-06-24 20:26:55,491 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 [2018-06-24 20:26:55,509 INFO ]: Start minimizeSevpa. Operand 134 states. [2018-06-24 20:26:55,607 INFO ]: Finished minimizeSevpa. Reduced states from 134 to 134. [2018-06-24 20:26:55,608 INFO ]: Start removeUnreachable. Operand 134 states. [2018-06-24 20:26:55,619 INFO ]: Finished removeUnreachable. Reduced from 134 states to 134 states and 363 transitions. [2018-06-24 20:26:55,621 INFO ]: Start accepts. Automaton has 134 states and 363 transitions. Word has length 4 [2018-06-24 20:26:55,621 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:26:55,621 INFO ]: Abstraction has 134 states and 363 transitions. [2018-06-24 20:26:55,621 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:26:55,622 INFO ]: Start isEmpty. Operand 134 states and 363 transitions. [2018-06-24 20:26:55,630 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:26:55,630 INFO ]: Found error trace [2018-06-24 20:26:55,630 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:26:55,630 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:26:55,630 INFO ]: Analyzing trace with hash 172070099, now seen corresponding path program 1 times [2018-06-24 20:26:55,630 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:26:55,630 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:26:55,631 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:55,631 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:26:55,631 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:55,654 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:26:55,768 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:26:55,768 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:26:55,768 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:26:55,769 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:26:55,770 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:26:55,770 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:26:55,770 INFO ]: Start difference. First operand 134 states and 363 transitions. Second operand 3 states. [2018-06-24 20:26:57,416 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:26:57,416 INFO ]: Finished difference Result 264 states and 578 transitions. [2018-06-24 20:26:57,416 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:26:57,416 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:26:57,416 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:26:57,437 INFO ]: With dead ends: 264 [2018-06-24 20:26:57,437 INFO ]: Without dead ends: 264 [2018-06-24 20:26:57,438 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 [2018-06-24 20:26:57,439 INFO ]: Start minimizeSevpa. Operand 264 states. [2018-06-24 20:26:57,486 INFO ]: Finished minimizeSevpa. Reduced states from 264 to 264. [2018-06-24 20:26:57,486 INFO ]: Start removeUnreachable. Operand 264 states. [2018-06-24 20:26:57,497 INFO ]: Finished removeUnreachable. Reduced from 264 states to 264 states and 578 transitions. [2018-06-24 20:26:57,497 INFO ]: Start accepts. Automaton has 264 states and 578 transitions. Word has length 5 [2018-06-24 20:26:57,497 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:26:57,497 INFO ]: Abstraction has 264 states and 578 transitions. [2018-06-24 20:26:57,497 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:26:57,497 INFO ]: Start isEmpty. Operand 264 states and 578 transitions. [2018-06-24 20:26:57,506 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:26:57,506 INFO ]: Found error trace [2018-06-24 20:26:57,506 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:26:57,506 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:26:57,506 INFO ]: Analyzing trace with hash 172134486, now seen corresponding path program 1 times [2018-06-24 20:26:57,506 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:26:57,506 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:26:57,507 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:57,507 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:26:57,507 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:57,525 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:26:57,635 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:26:57,635 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:26:57,635 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:26:57,635 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:26:57,635 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:26:57,635 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:26:57,635 INFO ]: Start difference. First operand 264 states and 578 transitions. Second operand 3 states. [2018-06-24 20:26:59,105 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:26:59,105 INFO ]: Finished difference Result 394 states and 793 transitions. [2018-06-24 20:26:59,105 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:26:59,105 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:26:59,106 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:26:59,124 INFO ]: With dead ends: 394 [2018-06-24 20:26:59,124 INFO ]: Without dead ends: 394 [2018-06-24 20:26:59,124 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 [2018-06-24 20:26:59,125 INFO ]: Start minimizeSevpa. Operand 394 states. [2018-06-24 20:26:59,186 INFO ]: Finished minimizeSevpa. Reduced states from 394 to 394. [2018-06-24 20:26:59,186 INFO ]: Start removeUnreachable. Operand 394 states. [2018-06-24 20:26:59,201 INFO ]: Finished removeUnreachable. Reduced from 394 states to 394 states and 793 transitions. [2018-06-24 20:26:59,201 INFO ]: Start accepts. Automaton has 394 states and 793 transitions. Word has length 5 [2018-06-24 20:26:59,201 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:26:59,201 INFO ]: Abstraction has 394 states and 793 transitions. [2018-06-24 20:26:59,201 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:26:59,201 INFO ]: Start isEmpty. Operand 394 states and 793 transitions. [2018-06-24 20:26:59,229 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:26:59,229 INFO ]: Found error trace [2018-06-24 20:26:59,230 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:26:59,230 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:26:59,230 INFO ]: Analyzing trace with hash -909889345, now seen corresponding path program 1 times [2018-06-24 20:26:59,230 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:26:59,230 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:26:59,230 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:59,231 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:26:59,231 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:26:59,265 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:26:59,406 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:26:59,406 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:26:59,406 INFO ]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-06-24 20:26:59,406 INFO ]: Interpolant automaton has 5 states [2018-06-24 20:26:59,407 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-24 20:26:59,407 INFO ]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-06-24 20:26:59,407 INFO ]: Start difference. First operand 394 states and 793 transitions. Second operand 5 states. [2018-06-24 20:27:00,826 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:27:00,826 INFO ]: Finished difference Result 1030 states and 2815 transitions. [2018-06-24 20:27:00,826 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-24 20:27:00,826 INFO ]: Start accepts. Automaton has 5 states. Word has length 9 [2018-06-24 20:27:00,826 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:27:00,894 INFO ]: With dead ends: 1030 [2018-06-24 20:27:00,894 INFO ]: Without dead ends: 816 [2018-06-24 20:27:00,894 INFO ]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-24 20:27:00,895 INFO ]: Start minimizeSevpa. Operand 816 states. [2018-06-24 20:27:01,094 INFO ]: Finished minimizeSevpa. Reduced states from 816 to 532. [2018-06-24 20:27:01,094 INFO ]: Start removeUnreachable. Operand 532 states. [2018-06-24 20:27:01,108 INFO ]: Finished removeUnreachable. Reduced from 532 states to 532 states and 1108 transitions. [2018-06-24 20:27:01,109 INFO ]: Start accepts. Automaton has 532 states and 1108 transitions. Word has length 9 [2018-06-24 20:27:01,109 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:27:01,109 INFO ]: Abstraction has 532 states and 1108 transitions. [2018-06-24 20:27:01,109 INFO ]: Interpolant automaton has 5 states. [2018-06-24 20:27:01,109 INFO ]: Start isEmpty. Operand 532 states and 1108 transitions. [2018-06-24 20:27:01,138 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-24 20:27:01,138 INFO ]: Found error trace [2018-06-24 20:27:01,138 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:27:01,138 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:27:01,138 INFO ]: Analyzing trace with hash -909886462, now seen corresponding path program 1 times [2018-06-24 20:27:01,138 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:27:01,138 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:27:01,139 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:01,139 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:27:01,139 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:01,188 INFO ]: Conjunction of SSA is sat [2018-06-24 20:27:01,197 INFO ]: Counterexample might be feasible [2018-06-24 20:27:01,210 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:27:01,212 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:27:01 BasicIcfg [2018-06-24 20:27:01,212 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:27:01,213 INFO ]: Toolchain (without parser) took 10904.80 ms. Allocated memory was 308.3 MB in the beginning and 452.5 MB in the end (delta: 144.2 MB). Free memory was 244.9 MB in the beginning and 207.7 MB in the end (delta: 37.2 MB). Peak memory consumption was 181.4 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,215 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:27:01,215 INFO ]: ChcToBoogie took 84.72 ms. Allocated memory is still 308.3 MB. Free memory was 244.9 MB in the beginning and 240.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,215 INFO ]: Boogie Preprocessor took 84.03 ms. Allocated memory is still 308.3 MB. Free memory was 240.9 MB in the beginning and 238.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,218 INFO ]: RCFGBuilder took 1459.84 ms. Allocated memory was 308.3 MB in the beginning and 324.5 MB in the end (delta: 16.3 MB). Free memory was 238.9 MB in the beginning and 270.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 57.7 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,219 INFO ]: BlockEncodingV2 took 928.10 ms. Allocated memory is still 324.5 MB. Free memory was 270.7 MB in the beginning and 216.6 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,219 INFO ]: TraceAbstraction took 8338.57 ms. Allocated memory was 324.5 MB in the beginning and 452.5 MB in the end (delta: 127.9 MB). Free memory was 216.6 MB in the beginning and 207.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 3.6 GB. [2018-06-24 20:27:01,226 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 145 locations, 279 edges - StatisticsResult: Encoded RCFG 133 locations, 266 edges * 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 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 84.72 ms. Allocated memory is still 308.3 MB. Free memory was 244.9 MB in the beginning and 240.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.03 ms. Allocated memory is still 308.3 MB. Free memory was 240.9 MB in the beginning and 238.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1459.84 ms. Allocated memory was 308.3 MB in the beginning and 324.5 MB in the end (delta: 16.3 MB). Free memory was 238.9 MB in the beginning and 270.7 MB in the end (delta: -31.8 MB). Peak memory consumption was 57.7 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 928.10 ms. Allocated memory is still 324.5 MB. Free memory was 270.7 MB in the beginning and 216.6 MB in the end (delta: 54.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 3.6 GB. * TraceAbstraction took 8338.57 ms. Allocated memory was 324.5 MB in the beginning and 452.5 MB in the end (delta: 127.9 MB). Free memory was 216.6 MB in the beginning and 207.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assume true; [L0] CALL call gotoProc(3, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int); [L0] RET call gotoProc(3, hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int); [L0] hhv_combined_lturn_0_Int, hhv_combined_lturn_1_Int, hhv_combined_lturn_2_Int, hhv_combined_lturn_3_Int, hhv_combined_lturn_4_Int, hhv_combined_lturn_5_Int, hhv_combined_lturn_6_Int, hhv_combined_lturn_7_Int, hhv_combined_lturn_8_Int, hhv_combined_lturn_9_Int, hhv_combined_lturn_10_Int, hhv_combined_lturn_11_Int, hhv_combined_lturn_12_Int := hbv_False_1_Int, hbv_False_2_Int, hbv_False_3_Int, hbv_False_4_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_7_Int, hbv_False_8_Int, hbv_False_9_Int, hbv_False_10_Int, hbv_False_11_Int, hbv_False_12_Int, hbv_False_13_Int; [L0] havoc hbv_False_11_Int, hbv_False_10_Int, hbv_False_1_Int, hbv_False_3_Int, hbv_False_8_Int, hbv_False_12_Int, hbv_False_9_Int, hbv_False_2_Int, hbv_False_5_Int, hbv_False_6_Int, hbv_False_4_Int, hbv_False_7_Int, hbv_False_13_Int; [L0] RET call gotoProc(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 133 locations, 1 error locations. UNSAFE Result, 8.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1453 SDtfs, 263 SDslu, 1628 SDs, 0 SdLazy, 1449 SolverSat, 464 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 284 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/giftwrapping.26.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-27-01-242.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/giftwrapping.26.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-27-01-242.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/giftwrapping.26.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-27-01-242.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/giftwrapping.26.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-27-01-242.csv Received shutdown request...