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/graham-scan.29.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-24 20:27:53,349 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-24 20:27:53,351 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-24 20:27:53,367 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-24 20:27:53,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-24 20:27:53,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-24 20:27:53,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-24 20:27:53,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-24 20:27:53,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-24 20:27:53,375 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-24 20:27:53,376 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-24 20:27:53,376 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-24 20:27:53,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-24 20:27:53,380 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-24 20:27:53,381 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-24 20:27:53,382 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-24 20:27:53,383 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-24 20:27:53,393 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-24 20:27:53,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-24 20:27:53,395 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-24 20:27:53,396 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-24 20:27:53,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-24 20:27:53,402 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-24 20:27:53,402 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-24 20:27:53,403 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-24 20:27:53,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-24 20:27:53,404 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-24 20:27:53,406 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-24 20:27:53,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-24 20:27:53,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-24 20:27:53,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-24 20:27:53,408 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-24 20:27:53,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-24 20:27:53,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-24 20:27:53,410 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-24 20:27:53,412 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-24 20:27:53,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-24 20:27:53,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-24 20:27:53,447 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-24 20:27:53,447 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-24 20:27:53,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-24 20:27:53,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-24 20:27:53,449 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-24 20:27:53,449 INFO L133 SettingsManager]: * Use SBE=true [2018-06-24 20:27:53,449 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-24 20:27:53,449 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-24 20:27:53,449 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-24 20:27:53,450 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-24 20:27:53,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-24 20:27:53,450 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-24 20:27:53,450 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-24 20:27:53,450 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-24 20:27:53,451 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-24 20:27:53,451 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-24 20:27:53,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-24 20:27:53,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-24 20:27:53,451 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-24 20:27:53,454 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-24 20:27:53,454 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-24 20:27:53,515 INFO ]: Repository-Root is: /tmp [2018-06-24 20:27:53,558 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-24 20:27:53,563 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-24 20:27:53,565 INFO ]: Initializing SmtParser... [2018-06-24 20:27:53,565 INFO ]: SmtParser initialized [2018-06-24 20:27:53,566 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan.29.smt2 [2018-06-24 20:27:53,567 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 20:27:53,672 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan.29.smt2 unknown [2018-06-24 20:27:54,139 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/graham-scan.29.smt2 [2018-06-24 20:27:54,144 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-24 20:27:54,151 INFO ]: Walking toolchain with 5 elements. [2018-06-24 20:27:54,151 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-24 20:27:54,151 INFO ]: Initializing ChcToBoogie... [2018-06-24 20:27:54,151 INFO ]: ChcToBoogie initialized [2018-06-24 20:27:54,155 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,240 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54 Unit [2018-06-24 20:27:54,240 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-24 20:27:54,241 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-24 20:27:54,241 INFO ]: Initializing Boogie Preprocessor... [2018-06-24 20:27:54,241 INFO ]: Boogie Preprocessor initialized [2018-06-24 20:27:54,264 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,264 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,286 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,286 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,308 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,313 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,317 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (1/1) ... [2018-06-24 20:27:54,322 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-24 20:27:54,322 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-24 20:27:54,322 INFO ]: Initializing RCFGBuilder... [2018-06-24 20:27:54,322 INFO ]: RCFGBuilder initialized [2018-06-24 20:27:54,323 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (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 20:27:54,344 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-24 20:27:54,344 INFO ]: Found specification of procedure gotoProc [2018-06-24 20:27:54,344 INFO ]: Found implementation of procedure gotoProc [2018-06-24 20:27:54,344 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-24 20:27:54,344 INFO ]: Found specification of procedure Ultimate.START [2018-06-24 20:27:54,344 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 [2018-06-24 20:27:55,742 INFO ]: Using library mode [2018-06-24 20:27:55,743 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:27:55 BoogieIcfgContainer [2018-06-24 20:27:55,743 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-24 20:27:55,743 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-24 20:27:55,743 INFO ]: Initializing BlockEncodingV2... [2018-06-24 20:27:55,744 INFO ]: BlockEncodingV2 initialized [2018-06-24 20:27:55,745 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:27:55" (1/1) ... [2018-06-24 20:27:55,778 INFO ]: Initial Icfg 145 locations, 279 edges [2018-06-24 20:27:55,779 INFO ]: Using Remove infeasible edges [2018-06-24 20:27:55,780 INFO ]: Using Maximize final states [2018-06-24 20:27:55,780 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-24 20:27:55,781 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-24 20:27:55,782 INFO ]: Using Remove sink states [2018-06-24 20:27:55,783 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-24 20:27:55,783 INFO ]: Using Use SBE [2018-06-24 20:27:55,794 INFO ]: SBE split 0 edges [2018-06-24 20:27:55,803 INFO ]: Removed 4 edges and 2 locations because of local infeasibility [2018-06-24 20:27:55,807 INFO ]: 0 new accepting states [2018-06-24 20:27:56,268 INFO ]: Removed 39 edges and 6 locations by large block encoding [2018-06-24 20:27:56,271 INFO ]: Removed 7 edges and 4 locations by removing sink states [2018-06-24 20:27:56,276 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-24 20:27:56,276 INFO ]: 0 new accepting states [2018-06-24 20:27:56,281 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-24 20:27:56,282 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-24 20:27:56,286 INFO ]: Encoded RCFG 133 locations, 262 edges [2018-06-24 20:27:56,286 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:27:56 BasicIcfg [2018-06-24 20:27:56,287 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-24 20:27:56,287 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-24 20:27:56,287 INFO ]: Initializing TraceAbstraction... [2018-06-24 20:27:56,291 INFO ]: TraceAbstraction initialized [2018-06-24 20:27:56,291 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 24.06 08:27:54" (1/4) ... [2018-06-24 20:27:56,292 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754ed407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 24.06 08:27:56, skipping insertion in model container [2018-06-24 20:27:56,292 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 24.06 08:27:54" (2/4) ... [2018-06-24 20:27:56,292 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754ed407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:27:56, skipping insertion in model container [2018-06-24 20:27:56,292 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:27:55" (3/4) ... [2018-06-24 20:27:56,292 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754ed407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:27:56, skipping insertion in model container [2018-06-24 20:27:56,292 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 24.06 08:27:56" (4/4) ... [2018-06-24 20:27:56,296 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-24 20:27:56,308 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-24 20:27:56,339 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-24 20:27:56,384 INFO ]: Using default assertion order modulation [2018-06-24 20:27:56,385 INFO ]: Interprodecural is true [2018-06-24 20:27:56,385 INFO ]: Hoare is false [2018-06-24 20:27:56,385 INFO ]: Compute interpolants for FPandBP [2018-06-24 20:27:56,385 INFO ]: Backedges is TWOTRACK [2018-06-24 20:27:56,385 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-24 20:27:56,385 INFO ]: Difference is false [2018-06-24 20:27:56,385 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-24 20:27:56,385 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-24 20:27:56,408 INFO ]: Start isEmpty. Operand 133 states. [2018-06-24 20:27:56,479 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:27:56,479 INFO ]: Found error trace [2018-06-24 20:27:56,480 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:27:56,481 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:27:56,486 INFO ]: Analyzing trace with hash 174824235, now seen corresponding path program 1 times [2018-06-24 20:27:56,488 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:27:56,489 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:27:56,535 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:56,535 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:27:56,535 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:56,612 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:27:56,777 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:27:56,779 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:27:56,779 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:27:56,780 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:27:56,791 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:27:56,792 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:27:56,794 INFO ]: Start difference. First operand 133 states. Second operand 3 states. [2018-06-24 20:27:59,103 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:27:59,104 INFO ]: Finished difference Result 263 states and 520 transitions. [2018-06-24 20:27:59,104 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:27:59,105 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:27:59,106 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:27:59,160 INFO ]: With dead ends: 263 [2018-06-24 20:27:59,160 INFO ]: Without dead ends: 259 [2018-06-24 20:27:59,161 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 20:27:59,180 INFO ]: Start minimizeSevpa. Operand 259 states. [2018-06-24 20:27:59,309 INFO ]: Finished minimizeSevpa. Reduced states from 259 to 259. [2018-06-24 20:27:59,311 INFO ]: Start removeUnreachable. Operand 259 states. [2018-06-24 20:27:59,331 INFO ]: Finished removeUnreachable. Reduced from 259 states to 259 states and 512 transitions. [2018-06-24 20:27:59,332 INFO ]: Start accepts. Automaton has 259 states and 512 transitions. Word has length 5 [2018-06-24 20:27:59,333 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:27:59,333 INFO ]: Abstraction has 259 states and 512 transitions. [2018-06-24 20:27:59,333 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:27:59,333 INFO ]: Start isEmpty. Operand 259 states and 512 transitions. [2018-06-24 20:27:59,343 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-24 20:27:59,343 INFO ]: Found error trace [2018-06-24 20:27:59,344 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-24 20:27:59,344 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:27:59,344 INFO ]: Analyzing trace with hash 174886700, now seen corresponding path program 1 times [2018-06-24 20:27:59,344 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:27:59,344 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:27:59,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:59,345 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:27:59,345 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:27:59,366 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:27:59,490 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-24 20:27:59,491 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:27:59,491 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-24 20:27:59,492 INFO ]: Interpolant automaton has 3 states [2018-06-24 20:27:59,492 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-24 20:27:59,492 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-24 20:27:59,492 INFO ]: Start difference. First operand 259 states and 512 transitions. Second operand 3 states. [2018-06-24 20:28:01,376 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:28:01,376 INFO ]: Finished difference Result 387 states and 767 transitions. [2018-06-24 20:28:01,376 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-24 20:28:01,376 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-24 20:28:01,377 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:28:01,403 INFO ]: With dead ends: 387 [2018-06-24 20:28:01,403 INFO ]: Without dead ends: 387 [2018-06-24 20:28:01,404 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 20:28:01,404 INFO ]: Start minimizeSevpa. Operand 387 states. [2018-06-24 20:28:01,503 INFO ]: Finished minimizeSevpa. Reduced states from 387 to 387. [2018-06-24 20:28:01,503 INFO ]: Start removeUnreachable. Operand 387 states. [2018-06-24 20:28:01,532 INFO ]: Finished removeUnreachable. Reduced from 387 states to 387 states and 767 transitions. [2018-06-24 20:28:01,532 INFO ]: Start accepts. Automaton has 387 states and 767 transitions. Word has length 5 [2018-06-24 20:28:01,533 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:28:01,533 INFO ]: Abstraction has 387 states and 767 transitions. [2018-06-24 20:28:01,533 INFO ]: Interpolant automaton has 3 states. [2018-06-24 20:28:01,533 INFO ]: Start isEmpty. Operand 387 states and 767 transitions. [2018-06-24 20:28:01,571 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:28:01,571 INFO ]: Found error trace [2018-06-24 20:28:01,571 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:28:01,571 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:28:01,571 INFO ]: Analyzing trace with hash -113749241, now seen corresponding path program 1 times [2018-06-24 20:28:01,571 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:28:01,571 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:28:01,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:01,572 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:01,572 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:01,623 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:02,128 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:02,128 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:28:02,128 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:28:02,129 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:28:02,129 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:28:02,129 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:28:02,129 INFO ]: Start difference. First operand 387 states and 767 transitions. Second operand 6 states. [2018-06-24 20:28:08,907 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:28:08,907 INFO ]: Finished difference Result 1310 states and 4847 transitions. [2018-06-24 20:28:08,908 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-24 20:28:08,908 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:28:08,908 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:28:09,165 INFO ]: With dead ends: 1310 [2018-06-24 20:28:09,165 INFO ]: Without dead ends: 1310 [2018-06-24 20:28:09,166 INFO ]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-06-24 20:28:09,167 INFO ]: Start minimizeSevpa. Operand 1310 states. [2018-06-24 20:28:09,597 INFO ]: Finished minimizeSevpa. Reduced states from 1310 to 832. [2018-06-24 20:28:09,597 INFO ]: Start removeUnreachable. Operand 832 states. [2018-06-24 20:28:09,636 INFO ]: Finished removeUnreachable. Reduced from 832 states to 832 states and 2118 transitions. [2018-06-24 20:28:09,636 INFO ]: Start accepts. Automaton has 832 states and 2118 transitions. Word has length 10 [2018-06-24 20:28:09,636 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:28:09,636 INFO ]: Abstraction has 832 states and 2118 transitions. [2018-06-24 20:28:09,636 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:28:09,636 INFO ]: Start isEmpty. Operand 832 states and 2118 transitions. [2018-06-24 20:28:09,674 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-24 20:28:09,674 INFO ]: Found error trace [2018-06-24 20:28:09,674 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:28:09,674 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:28:09,675 INFO ]: Analyzing trace with hash 328579099, now seen corresponding path program 1 times [2018-06-24 20:28:09,675 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:28:09,675 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:28:09,675 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:09,675 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:09,675 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:09,715 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:09,956 INFO ]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:09,956 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-24 20:28:09,956 INFO ]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-06-24 20:28:09,956 INFO ]: Interpolant automaton has 6 states [2018-06-24 20:28:09,956 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-24 20:28:09,956 INFO ]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-06-24 20:28:09,956 INFO ]: Start difference. First operand 832 states and 2118 transitions. Second operand 6 states. [2018-06-24 20:28:13,655 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:28:13,655 INFO ]: Finished difference Result 2456 states and 9968 transitions. [2018-06-24 20:28:13,715 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-24 20:28:13,715 INFO ]: Start accepts. Automaton has 6 states. Word has length 10 [2018-06-24 20:28:13,715 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:28:14,219 INFO ]: With dead ends: 2456 [2018-06-24 20:28:14,219 INFO ]: Without dead ends: 2261 [2018-06-24 20:28:14,219 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-06-24 20:28:14,220 INFO ]: Start minimizeSevpa. Operand 2261 states. [2018-06-24 20:28:15,067 INFO ]: Finished minimizeSevpa. Reduced states from 2261 to 1425. [2018-06-24 20:28:15,067 INFO ]: Start removeUnreachable. Operand 1425 states. [2018-06-24 20:28:15,159 INFO ]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 3962 transitions. [2018-06-24 20:28:15,159 INFO ]: Start accepts. Automaton has 1425 states and 3962 transitions. Word has length 10 [2018-06-24 20:28:15,159 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:28:15,159 INFO ]: Abstraction has 1425 states and 3962 transitions. [2018-06-24 20:28:15,159 INFO ]: Interpolant automaton has 6 states. [2018-06-24 20:28:15,159 INFO ]: Start isEmpty. Operand 1425 states and 3962 transitions. [2018-06-24 20:28:15,204 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 20:28:15,204 INFO ]: Found error trace [2018-06-24 20:28:15,205 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:28:15,205 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:28:15,205 INFO ]: Analyzing trace with hash 77140926, now seen corresponding path program 1 times [2018-06-24 20:28:15,205 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:28:15,205 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:28:15,206 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:15,206 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:15,206 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:15,238 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:15,372 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:15,372 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:28:15,372 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 [2018-06-24 20:28:15,379 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:15,569 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:15,578 INFO ]: Computing forward predicates... [2018-06-24 20:28:15,657 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:15,694 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:28:15,694 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-24 20:28:15,694 INFO ]: Interpolant automaton has 9 states [2018-06-24 20:28:15,694 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-24 20:28:15,694 INFO ]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-06-24 20:28:15,694 INFO ]: Start difference. First operand 1425 states and 3962 transitions. Second operand 9 states. [2018-06-24 20:28:29,632 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-24 20:28:29,632 INFO ]: Finished difference Result 4350 states and 30189 transitions. [2018-06-24 20:28:29,633 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-06-24 20:28:29,633 INFO ]: Start accepts. Automaton has 9 states. Word has length 11 [2018-06-24 20:28:29,634 INFO ]: Finished accepts. some prefix is accepted. [2018-06-24 20:28:31,292 INFO ]: With dead ends: 4350 [2018-06-24 20:28:31,292 INFO ]: Without dead ends: 4350 [2018-06-24 20:28:31,293 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-06-24 20:28:31,295 INFO ]: Start minimizeSevpa. Operand 4350 states. [2018-06-24 20:28:33,959 INFO ]: Finished minimizeSevpa. Reduced states from 4350 to 2610. [2018-06-24 20:28:33,959 INFO ]: Start removeUnreachable. Operand 2610 states. [2018-06-24 20:28:34,298 INFO ]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 9481 transitions. [2018-06-24 20:28:34,298 INFO ]: Start accepts. Automaton has 2610 states and 9481 transitions. Word has length 11 [2018-06-24 20:28:34,299 INFO ]: Finished accepts. word is rejected. [2018-06-24 20:28:34,299 INFO ]: Abstraction has 2610 states and 9481 transitions. [2018-06-24 20:28:34,299 INFO ]: Interpolant automaton has 9 states. [2018-06-24 20:28:34,299 INFO ]: Start isEmpty. Operand 2610 states and 9481 transitions. [2018-06-24 20:28:34,390 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-24 20:28:34,390 INFO ]: Found error trace [2018-06-24 20:28:34,391 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-24 20:28:34,391 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-24 20:28:34,391 INFO ]: Analyzing trace with hash 486360227, now seen corresponding path program 1 times [2018-06-24 20:28:34,391 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-24 20:28:34,391 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-24 20:28:34,392 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:34,392 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:34,392 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-24 20:28:34,434 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:34,992 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:34,992 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-24 20:28:34,992 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 [2018-06-24 20:28:34,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-24 20:28:35,061 INFO ]: Conjunction of SSA is unsat [2018-06-24 20:28:35,064 INFO ]: Computing forward predicates... [2018-06-24 20:28:35,360 INFO ]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-24 20:28:35,379 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-24 20:28:35,379 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-24 20:28:35,379 INFO ]: Interpolant automaton has 12 states [2018-06-24 20:28:35,379 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-24 20:28:35,379 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-24 20:28:35,379 INFO ]: Start difference. First operand 2610 states and 9481 transitions. Second operand 12 states. Received shutdown request... [2018-06-24 20:28:52,663 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-06-24 20:28:52,663 WARN ]: Verification canceled [2018-06-24 20:28:52,666 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-24 20:28:52,667 WARN ]: Timeout [2018-06-24 20:28:52,667 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:28:52 BasicIcfg [2018-06-24 20:28:52,667 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-24 20:28:52,669 INFO ]: Toolchain (without parser) took 58524.07 ms. Allocated memory was 308.8 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 249.2 MB in the beginning and 1.1 GB in the end (delta: -882.4 MB). Peak memory consumption was 558.8 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,670 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-24 20:28:52,671 INFO ]: ChcToBoogie took 89.42 ms. Allocated memory is still 308.8 MB. Free memory was 249.2 MB in the beginning and 245.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,671 INFO ]: Boogie Preprocessor took 80.68 ms. Allocated memory is still 308.8 MB. Free memory was 245.3 MB in the beginning and 243.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,671 INFO ]: RCFGBuilder took 1420.35 ms. Allocated memory was 308.8 MB in the beginning and 324.5 MB in the end (delta: 15.7 MB). Free memory was 243.3 MB in the beginning and 281.5 MB in the end (delta: -38.2 MB). Peak memory consumption was 61.8 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,672 INFO ]: BlockEncodingV2 took 543.55 ms. Allocated memory is still 324.5 MB. Free memory was 281.5 MB in the beginning and 259.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,672 INFO ]: TraceAbstraction took 56379.72 ms. Allocated memory was 324.5 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 257.6 MB in the beginning and 1.1 GB in the end (delta: -874.1 MB). Peak memory consumption was 551.5 MB. Max. memory is 3.6 GB. [2018-06-24 20:28:52,676 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, 262 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 271.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 89.42 ms. Allocated memory is still 308.8 MB. Free memory was 249.2 MB in the beginning and 245.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 80.68 ms. Allocated memory is still 308.8 MB. Free memory was 245.3 MB in the beginning and 243.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 1420.35 ms. Allocated memory was 308.8 MB in the beginning and 324.5 MB in the end (delta: 15.7 MB). Free memory was 243.3 MB in the beginning and 281.5 MB in the end (delta: -38.2 MB). Peak memory consumption was 61.8 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 543.55 ms. Allocated memory is still 324.5 MB. Free memory was 281.5 MB in the beginning and 259.8 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 3.6 GB. * TraceAbstraction took 56379.72 ms. Allocated memory was 324.5 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 257.6 MB in the beginning and 1.1 GB in the end (delta: -874.1 MB). Peak memory consumption was 551.5 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 (2610states) and interpolant automaton (currently 26 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (6979 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 133 locations, 1 error locations. TIMEOUT Result, 56.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 48.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5414 SDtfs, 964 SDslu, 12223 SDs, 0 SdLazy, 36126 SolverSat, 6211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2610occurred in iteration=5, 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: 4.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 3054 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1910 SizeOfPredicates, 17 NumberOfNonLiveVariables, 828 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 12/16 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/graham-scan.29.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-24_20-28-52-687.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/graham-scan.29.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-24_20-28-52-687.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/graham-scan.29.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-24_20-28-52-687.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/graham-scan.29.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-24_20-28-52-687.csv Completed graceful shutdown