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/ctigar/svd3.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 01:32:06,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 01:32:06,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 01:32:06,301 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 01:32:06,302 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 01:32:06,303 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 01:32:06,306 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 01:32:06,308 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 01:32:06,310 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 01:32:06,310 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 01:32:06,312 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 01:32:06,312 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 01:32:06,313 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 01:32:06,314 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 01:32:06,317 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 01:32:06,318 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 01:32:06,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 01:32:06,328 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 01:32:06,329 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 01:32:06,330 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 01:32:06,331 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 01:32:06,333 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 01:32:06,334 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 01:32:06,334 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 01:32:06,335 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 01:32:06,335 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 01:32:06,336 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 01:32:06,337 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 01:32:06,338 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 01:32:06,338 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 01:32:06,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 01:32:06,339 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 01:32:06,339 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 01:32:06,340 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 01:32:06,340 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 01:32:06,343 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 01:32:06,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 01:32:06,359 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 01:32:06,359 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 01:32:06,360 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 01:32:06,360 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 01:32:06,361 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 01:32:06,361 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 01:32:06,361 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 01:32:06,361 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 01:32:06,362 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 01:32:06,362 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 01:32:06,362 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 01:32:06,362 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 01:32:06,362 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 01:32:06,363 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 01:32:06,364 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 01:32:06,366 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 01:32:06,367 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 01:32:06,418 INFO ]: Repository-Root is: /tmp [2018-06-25 01:32:06,435 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 01:32:06,441 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 01:32:06,442 INFO ]: Initializing SmtParser... [2018-06-25 01:32:06,442 INFO ]: SmtParser initialized [2018-06-25 01:32:06,443 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd3.c.smt2 [2018-06-25 01:32:06,444 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-25 01:32:06,530 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd3.c.smt2 unknown [2018-06-25 01:32:06,858 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd3.c.smt2 [2018-06-25 01:32:06,863 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 01:32:06,871 INFO ]: Walking toolchain with 5 elements. [2018-06-25 01:32:06,871 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 01:32:06,871 INFO ]: Initializing ChcToBoogie... [2018-06-25 01:32:06,871 INFO ]: ChcToBoogie initialized [2018-06-25 01:32:06,875 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,931 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06 Unit [2018-06-25 01:32:06,931 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 01:32:06,932 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 01:32:06,932 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 01:32:06,932 INFO ]: Boogie Preprocessor initialized [2018-06-25 01:32:06,953 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,953 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,961 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,961 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,977 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,978 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,984 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... [2018-06-25 01:32:06,987 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 01:32:06,987 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 01:32:06,987 INFO ]: Initializing RCFGBuilder... [2018-06-25 01:32:06,987 INFO ]: RCFGBuilder initialized [2018-06-25 01:32:06,988 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 01:32:07,001 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 01:32:07,001 INFO ]: Found specification of procedure gotoProc [2018-06-25 01:32:07,001 INFO ]: Found implementation of procedure gotoProc [2018-06-25 01:32:07,001 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 01:32:07,001 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 01:32:07,001 INFO ]: Found implementation of procedure Ultimate.START [2018-06-25 01:32:07,269 INFO ]: Using library mode [2018-06-25 01:32:07,269 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:07 BoogieIcfgContainer [2018-06-25 01:32:07,269 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 01:32:07,271 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-25 01:32:07,271 INFO ]: Initializing BlockEncodingV2... [2018-06-25 01:32:07,272 INFO ]: BlockEncodingV2 initialized [2018-06-25 01:32:07,273 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:07" (1/1) ... [2018-06-25 01:32:07,287 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-25 01:32:07,288 INFO ]: Using Remove infeasible edges [2018-06-25 01:32:07,289 INFO ]: Using Maximize final states [2018-06-25 01:32:07,289 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-25 01:32:07,290 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-25 01:32:07,293 INFO ]: Using Remove sink states [2018-06-25 01:32:07,294 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-25 01:32:07,294 INFO ]: Using Use SBE [2018-06-25 01:32:07,312 WARN ]: aborting because of expected exponential blowup for input size 46 [2018-06-25 01:32:07,313 INFO ]: SBE split 0 edges [2018-06-25 01:32:07,319 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-25 01:32:07,320 INFO ]: 0 new accepting states [2018-06-25 01:32:07,349 INFO ]: Removed 4 edges and 2 locations by large block encoding [2018-06-25 01:32:07,351 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:32:07,358 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-25 01:32:07,358 INFO ]: 0 new accepting states [2018-06-25 01:32:07,358 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 01:32:07,358 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 01:32:07,358 INFO ]: Encoded RCFG 6 locations, 6 edges [2018-06-25 01:32:07,359 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:32:07 BasicIcfg [2018-06-25 01:32:07,359 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-25 01:32:07,360 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 01:32:07,360 INFO ]: Initializing TraceAbstraction... [2018-06-25 01:32:07,363 INFO ]: TraceAbstraction initialized [2018-06-25 01:32:07,363 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 01:32:06" (1/4) ... [2018-06-25 01:32:07,364 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec05eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 01:32:07, skipping insertion in model container [2018-06-25 01:32:07,364 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 01:32:06" (2/4) ... [2018-06-25 01:32:07,365 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec05eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 01:32:07, skipping insertion in model container [2018-06-25 01:32:07,365 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 01:32:07" (3/4) ... [2018-06-25 01:32:07,365 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec05eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:32:07, skipping insertion in model container [2018-06-25 01:32:07,365 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 01:32:07" (4/4) ... [2018-06-25 01:32:07,367 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-25 01:32:07,376 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 01:32:07,384 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 01:32:07,424 INFO ]: Using default assertion order modulation [2018-06-25 01:32:07,424 INFO ]: Interprodecural is true [2018-06-25 01:32:07,424 INFO ]: Hoare is false [2018-06-25 01:32:07,424 INFO ]: Compute interpolants for FPandBP [2018-06-25 01:32:07,424 INFO ]: Backedges is TWOTRACK [2018-06-25 01:32:07,424 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 01:32:07,424 INFO ]: Difference is false [2018-06-25 01:32:07,424 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 01:32:07,424 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 01:32:07,433 INFO ]: Start isEmpty. Operand 6 states. [2018-06-25 01:32:07,442 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 01:32:07,442 INFO ]: Found error trace [2018-06-25 01:32:07,443 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 01:32:07,443 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:32:07,448 INFO ]: Analyzing trace with hash 35402562, now seen corresponding path program 1 times [2018-06-25 01:32:07,450 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:32:07,451 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:32:07,487 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:07,487 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:32:07,487 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:07,531 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:07,581 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:07,583 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 01:32:07,583 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 01:32:07,584 INFO ]: Interpolant automaton has 3 states [2018-06-25 01:32:07,594 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 01:32:07,595 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:32:07,597 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-25 01:32:07,663 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:32:07,663 INFO ]: Finished difference Result 7 states and 7 transitions. [2018-06-25 01:32:07,666 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 01:32:07,667 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 01:32:07,667 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:32:07,676 INFO ]: With dead ends: 7 [2018-06-25 01:32:07,676 INFO ]: Without dead ends: 7 [2018-06-25 01:32:07,677 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 01:32:07,695 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-25 01:32:07,713 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-25 01:32:07,714 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 01:32:07,715 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-06-25 01:32:07,716 INFO ]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-06-25 01:32:07,716 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:32:07,716 INFO ]: Abstraction has 7 states and 7 transitions. [2018-06-25 01:32:07,716 INFO ]: Interpolant automaton has 3 states. [2018-06-25 01:32:07,716 INFO ]: Start isEmpty. Operand 7 states and 7 transitions. [2018-06-25 01:32:07,716 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 01:32:07,716 INFO ]: Found error trace [2018-06-25 01:32:07,716 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 01:32:07,716 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:32:07,717 INFO ]: Analyzing trace with hash 1097213384, now seen corresponding path program 1 times [2018-06-25 01:32:07,717 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:32:07,717 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:32:07,718 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:07,718 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:32:07,718 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:07,793 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:07,963 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:07,964 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:32:07,964 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:32:07,972 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:32:08,030 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:08,039 INFO ]: Computing forward predicates... [2018-06-25 01:32:08,876 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:08,896 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:32:08,896 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 01:32:08,897 INFO ]: Interpolant automaton has 5 states [2018-06-25 01:32:08,897 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 01:32:08,897 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 01:32:08,897 INFO ]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-06-25 01:32:08,976 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:32:08,976 INFO ]: Finished difference Result 8 states and 8 transitions. [2018-06-25 01:32:08,976 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 01:32:08,976 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-25 01:32:08,976 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:32:08,977 INFO ]: With dead ends: 8 [2018-06-25 01:32:08,977 INFO ]: Without dead ends: 8 [2018-06-25 01:32:08,977 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 01:32:08,978 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-25 01:32:08,978 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-25 01:32:08,979 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 01:32:08,979 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-06-25 01:32:08,979 INFO ]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-06-25 01:32:08,979 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:32:08,979 INFO ]: Abstraction has 8 states and 8 transitions. [2018-06-25 01:32:08,979 INFO ]: Interpolant automaton has 5 states. [2018-06-25 01:32:08,979 INFO ]: Start isEmpty. Operand 8 states and 8 transitions. [2018-06-25 01:32:08,979 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 01:32:08,979 INFO ]: Found error trace [2018-06-25 01:32:08,979 INFO ]: trace histogram [2, 1, 1, 1, 1, 1] [2018-06-25 01:32:08,980 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:32:08,980 INFO ]: Analyzing trace with hash -346389502, now seen corresponding path program 2 times [2018-06-25 01:32:08,980 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:32:08,980 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:32:08,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:08,981 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 01:32:08,981 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:09,057 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:09,273 WARN ]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 6 [2018-06-25 01:32:09,292 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:09,292 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:32:09,292 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:32:09,300 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 01:32:09,376 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 01:32:09,376 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:09,381 INFO ]: Computing forward predicates... [2018-06-25 01:32:12,645 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:12,665 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:32:12,665 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-25 01:32:12,665 INFO ]: Interpolant automaton has 6 states [2018-06-25 01:32:12,665 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 01:32:12,665 INFO ]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-06-25 01:32:12,666 INFO ]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2018-06-25 01:32:12,718 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:32:12,718 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 01:32:12,718 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 01:32:12,718 INFO ]: Start accepts. Automaton has 6 states. Word has length 7 [2018-06-25 01:32:12,718 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:32:12,718 INFO ]: With dead ends: 9 [2018-06-25 01:32:12,718 INFO ]: Without dead ends: 9 [2018-06-25 01:32:12,719 INFO ]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-06-25 01:32:12,719 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 01:32:12,720 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 01:32:12,720 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 01:32:12,720 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 01:32:12,720 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 01:32:12,720 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:32:12,720 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 01:32:12,720 INFO ]: Interpolant automaton has 6 states. [2018-06-25 01:32:12,720 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 01:32:12,720 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 01:32:12,720 INFO ]: Found error trace [2018-06-25 01:32:12,720 INFO ]: trace histogram [3, 1, 1, 1, 1, 1] [2018-06-25 01:32:12,721 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:32:12,721 INFO ]: Analyzing trace with hash 2146561288, now seen corresponding path program 3 times [2018-06-25 01:32:12,721 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:32:12,721 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:32:12,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:12,721 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 01:32:12,721 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:12,771 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:12,934 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:12,934 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:32:12,934 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:32:12,940 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 01:32:12,978 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 01:32:12,978 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:12,981 INFO ]: Computing forward predicates... [2018-06-25 01:32:51,911 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:51,931 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 01:32:51,931 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-06-25 01:32:51,931 INFO ]: Interpolant automaton has 6 states [2018-06-25 01:32:51,931 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 01:32:51,931 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-25 01:32:51,931 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 01:32:51,998 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 01:32:51,998 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 01:32:51,998 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 01:32:51,998 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 01:32:51,998 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 01:32:51,999 INFO ]: With dead ends: 10 [2018-06-25 01:32:51,999 INFO ]: Without dead ends: 10 [2018-06-25 01:32:51,999 INFO ]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-06-25 01:32:51,999 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 01:32:52,000 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 01:32:52,000 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 01:32:52,000 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 01:32:52,000 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 01:32:52,000 INFO ]: Finished accepts. word is rejected. [2018-06-25 01:32:52,000 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 01:32:52,000 INFO ]: Interpolant automaton has 6 states. [2018-06-25 01:32:52,000 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 01:32:52,000 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 01:32:52,000 INFO ]: Found error trace [2018-06-25 01:32:52,000 INFO ]: trace histogram [4, 1, 1, 1, 1, 1] [2018-06-25 01:32:52,000 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 01:32:52,001 INFO ]: Analyzing trace with hash 2118624450, now seen corresponding path program 4 times [2018-06-25 01:32:52,001 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 01:32:52,001 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 01:32:52,001 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:52,001 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 01:32:52,001 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 01:32:52,061 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:53,206 WARN ]: Spent 965.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-06-25 01:32:53,284 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 01:32:53,285 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 01:32:53,285 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-25 01:32:53,302 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:32:53,367 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 01:32:53,367 INFO ]: Conjunction of SSA is unsat [2018-06-25 01:32:53,371 INFO ]: Computing forward predicates... [2018-06-25 01:33:01,691 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:02,116 WARN ]: expecting exponential blowup for input size 7 [2018-06-25 01:33:02,302 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 01:33:02,481 WARN ]: Simplifying disjunction of 13920 conjuctions. This might take some time... [2018-06-25 01:33:04,537 INFO ]: Simplified to disjunction of 1104 conjuctions. [2018-06-25 01:33:04,736 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:04,752 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:04,757 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:04,764 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:04,775 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 01:33:04,823 WARN ]: Simplifying disjunction of 8576 conjuctions. This might take some time... [2018-06-25 01:33:05,921 INFO ]: Simplified to disjunction of 1104 conjuctions. [2018-06-25 01:33:06,022 WARN ]: expecting exponential blowup for input size 11 [2018-06-25 01:33:06,066 WARN ]: Simplifying disjunction of 8656 conjuctions. This might take some time... [2018-06-25 01:33:07,002 INFO ]: Simplified to disjunction of 1104 conjuctions. [2018-06-25 01:33:07,118 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,126 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,130 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,134 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,176 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,183 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,191 WARN ]: expecting exponential blowup for input size 6 [2018-06-25 01:33:07,199 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-25 01:33:11,225 INFO ]: Timeout while computing interpolants [2018-06-25 01:33:11,425 WARN ]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 01:33:11,426 WARN ]: Verification canceled [2018-06-25 01:33:11,427 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-25 01:33:11,428 WARN ]: Timeout [2018-06-25 01:33:11,428 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 01:33:11 BasicIcfg [2018-06-25 01:33:11,428 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 01:33:11,429 INFO ]: Toolchain (without parser) took 64565.48 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 258.8 MB in the beginning and 553.8 MB in the end (delta: -295.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,430 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 308.3 MB. Free memory is still 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 01:33:11,430 INFO ]: ChcToBoogie took 60.34 ms. Allocated memory is still 308.3 MB. Free memory was 257.8 MB in the beginning and 255.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,432 INFO ]: Boogie Preprocessor took 54.90 ms. Allocated memory is still 308.3 MB. Free memory was 255.8 MB in the beginning and 253.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,432 INFO ]: RCFGBuilder took 282.10 ms. Allocated memory is still 308.3 MB. Free memory was 253.8 MB in the beginning and 241.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,433 INFO ]: BlockEncodingV2 took 87.89 ms. Allocated memory is still 308.3 MB. Free memory was 241.9 MB in the beginning and 238.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,434 INFO ]: TraceAbstraction took 64068.17 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.9 MB in the beginning and 553.8 MB in the end (delta: -316.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. [2018-06-25 01:33:11,438 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, 6 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 273.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 60.34 ms. Allocated memory is still 308.3 MB. Free memory was 257.8 MB in the beginning and 255.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 54.90 ms. Allocated memory is still 308.3 MB. Free memory was 255.8 MB in the beginning and 253.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 282.10 ms. Allocated memory is still 308.3 MB. Free memory was 253.8 MB in the beginning and 241.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 87.89 ms. Allocated memory is still 308.3 MB. Free memory was 241.9 MB in the beginning and 238.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 64068.17 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.9 MB in the beginning and 553.8 MB in the end (delta: -316.0 MB). Peak memory consumption was 1.4 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was analyzing trace of length 10 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 54113 quantified variables from 17 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. TIMEOUT Result, 64.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 0 SDslu, 33 SDs, 0 SdLazy, 22 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 43.6s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 707 SizeOfPredicates, 15 NumberOfNonLiveVariables, 486 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/20 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/svd3.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-25_01-33-11-450.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd3.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-25_01-33-11-450.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd3.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-25_01-33-11-450.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd3.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_01-33-11-450.csv Completed graceful shutdown