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/dillig19.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 00:51:51,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 00:51:51,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 00:51:51,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 00:51:51,707 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 00:51:51,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 00:51:51,709 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 00:51:51,713 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 00:51:51,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 00:51:51,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 00:51:51,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 00:51:51,717 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 00:51:51,718 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 00:51:51,719 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 00:51:51,720 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 00:51:51,721 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 00:51:51,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 00:51:51,723 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 00:51:51,734 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 00:51:51,735 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 00:51:51,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 00:51:51,738 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-06-25 00:51:51,745 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 00:51:51,746 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 00:51:51,747 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 00:51:51,752 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 00:51:51,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 00:51:51,753 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 00:51:51,754 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 00:51:51,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 00:51:51,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 00:51:51,774 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 00:51:51,774 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 00:51:51,775 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 00:51:51,775 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 00:51:51,775 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 00:51:51,775 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 00:51:51,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 00:51:51,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 00:51:51,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 00:51:51,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 00:51:51,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 00:51:51,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 00:51:51,777 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 00:51:51,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 00:51:51,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 00:51:51,777 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 00:51:51,778 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 00:51:51,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 00:51:51,778 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 00:51:51,780 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 00:51:51,780 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 00:51:51,819 INFO ]: Repository-Root is: /tmp [2018-06-25 00:51:51,836 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 00:51:51,842 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 00:51:51,843 INFO ]: Initializing SmtParser... [2018-06-25 00:51:51,844 INFO ]: SmtParser initialized [2018-06-25 00:51:51,844 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig19.c.smt2 [2018-06-25 00:51:51,846 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 00:51:51,936 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig19.c.smt2 unknown [2018-06-25 00:51:52,266 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/dillig19.c.smt2 [2018-06-25 00:51:52,270 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 00:51:52,277 INFO ]: Walking toolchain with 5 elements. [2018-06-25 00:51:52,277 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 00:51:52,277 INFO ]: Initializing ChcToBoogie... [2018-06-25 00:51:52,277 INFO ]: ChcToBoogie initialized [2018-06-25 00:51:52,281 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,342 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52 Unit [2018-06-25 00:51:52,342 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 00:51:52,343 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 00:51:52,343 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 00:51:52,343 INFO ]: Boogie Preprocessor initialized [2018-06-25 00:51:52,364 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,365 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,371 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,372 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,384 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,385 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,395 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,397 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 00:51:52,397 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 00:51:52,397 INFO ]: Initializing RCFGBuilder... [2018-06-25 00:51:52,397 INFO ]: RCFGBuilder initialized [2018-06-25 00:51:52,398 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (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) [2018-06-25 00:51:52,415 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 00:51:52,415 INFO ]: Found specification of procedure gotoProc [2018-06-25 00:51:52,415 INFO ]: Found implementation of procedure gotoProc [2018-06-25 00:51:52,415 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 00:51:52,416 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 00:51:52,416 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 [2018-06-25 00:51:52,697 INFO ]: Using library mode [2018-06-25 00:51:52,698 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:51:52 BoogieIcfgContainer [2018-06-25 00:51:52,698 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 00:51:52,698 INFO ]: ------------------------BlockEncodingV2---------------------------- [2018-06-25 00:51:52,698 INFO ]: Initializing BlockEncodingV2... [2018-06-25 00:51:52,699 INFO ]: BlockEncodingV2 initialized [2018-06-25 00:51:52,700 INFO ]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:51:52" (1/1) ... [2018-06-25 00:51:52,714 INFO ]: Initial Icfg 10 locations, 10 edges [2018-06-25 00:51:52,715 INFO ]: Using Remove infeasible edges [2018-06-25 00:51:52,716 INFO ]: Using Maximize final states [2018-06-25 00:51:52,716 INFO ]: Using Minimize states even if more edges are added than removed.=false [2018-06-25 00:51:52,717 INFO ]: Using Minimize states using LBE with the strategy=MULTI [2018-06-25 00:51:52,718 INFO ]: Using Remove sink states [2018-06-25 00:51:52,719 INFO ]: Using Apply optimizations until nothing changes=true [2018-06-25 00:51:52,719 INFO ]: Using Use SBE [2018-06-25 00:51:52,746 WARN ]: aborting because of expected exponential blowup for input size 37 [2018-06-25 00:51:52,756 INFO ]: SBE split 0 edges [2018-06-25 00:51:52,767 INFO ]: Removed 2 edges and 2 locations because of local infeasibility [2018-06-25 00:51:52,768 INFO ]: 0 new accepting states [2018-06-25 00:51:52,809 INFO ]: Removed 4 edges and 2 locations by large block encoding [2018-06-25 00:51:52,811 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 00:51:52,815 INFO ]: Removed 0 edges and 0 locations because of local infeasibility [2018-06-25 00:51:52,815 INFO ]: 0 new accepting states [2018-06-25 00:51:52,815 INFO ]: Removed 0 edges and 0 locations by large block encoding [2018-06-25 00:51:52,815 INFO ]: Removed 0 edges and 0 locations by removing sink states [2018-06-25 00:51:52,815 INFO ]: Encoded RCFG 6 locations, 6 edges [2018-06-25 00:51:52,818 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 12:51:52 BasicIcfg [2018-06-25 00:51:52,818 INFO ]: ------------------------ END BlockEncodingV2---------------------------- [2018-06-25 00:51:52,820 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 00:51:52,820 INFO ]: Initializing TraceAbstraction... [2018-06-25 00:51:52,824 INFO ]: TraceAbstraction initialized [2018-06-25 00:51:52,824 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 12:51:52" (1/4) ... [2018-06-25 00:51:52,825 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 12:51:52, skipping insertion in model container [2018-06-25 00:51:52,825 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 12:51:52" (2/4) ... [2018-06-25 00:51:52,825 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 12:51:52, skipping insertion in model container [2018-06-25 00:51:52,825 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 12:51:52" (3/4) ... [2018-06-25 00:51:52,825 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3023211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:51:52, skipping insertion in model container [2018-06-25 00:51:52,826 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 25.06 12:51:52" (4/4) ... [2018-06-25 00:51:52,828 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver_BEv2 [2018-06-25 00:51:52,840 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 00:51:52,848 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 00:51:52,891 INFO ]: Using default assertion order modulation [2018-06-25 00:51:52,891 INFO ]: Interprodecural is true [2018-06-25 00:51:52,892 INFO ]: Hoare is false [2018-06-25 00:51:52,892 INFO ]: Compute interpolants for FPandBP [2018-06-25 00:51:52,892 INFO ]: Backedges is TWOTRACK [2018-06-25 00:51:52,892 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 00:51:52,892 INFO ]: Difference is false [2018-06-25 00:51:52,892 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 00:51:52,892 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 00:51:52,900 INFO ]: Start isEmpty. Operand 6 states. [2018-06-25 00:51:52,913 INFO ]: Finished isEmpty. Found accepting run of length 6 [2018-06-25 00:51:52,914 INFO ]: Found error trace [2018-06-25 00:51:52,915 INFO ]: trace histogram [1, 1, 1, 1, 1] [2018-06-25 00:51:52,915 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:51:52,920 INFO ]: Analyzing trace with hash 35402562, now seen corresponding path program 1 times [2018-06-25 00:51:52,922 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:51:52,922 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:51:52,964 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:52,964 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 00:51:52,964 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:53,012 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:53,127 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:53,132 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 00:51:53,132 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 00:51:53,134 INFO ]: Interpolant automaton has 3 states [2018-06-25 00:51:53,149 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 00:51:53,149 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 00:51:53,152 INFO ]: Start difference. First operand 6 states. Second operand 3 states. [2018-06-25 00:51:53,235 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 00:51:53,235 INFO ]: Finished difference Result 7 states and 7 transitions. [2018-06-25 00:51:53,236 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 00:51:53,237 INFO ]: Start accepts. Automaton has 3 states. Word has length 5 [2018-06-25 00:51:53,237 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 00:51:53,246 INFO ]: With dead ends: 7 [2018-06-25 00:51:53,246 INFO ]: Without dead ends: 7 [2018-06-25 00:51:53,253 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 00:51:53,269 INFO ]: Start minimizeSevpa. Operand 7 states. [2018-06-25 00:51:53,290 INFO ]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-06-25 00:51:53,291 INFO ]: Start removeUnreachable. Operand 7 states. [2018-06-25 00:51:53,291 INFO ]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-06-25 00:51:53,293 INFO ]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-06-25 00:51:53,293 INFO ]: Finished accepts. word is rejected. [2018-06-25 00:51:53,293 INFO ]: Abstraction has 7 states and 7 transitions. [2018-06-25 00:51:53,293 INFO ]: Interpolant automaton has 3 states. [2018-06-25 00:51:53,293 INFO ]: Start isEmpty. Operand 7 states and 7 transitions. [2018-06-25 00:51:53,293 INFO ]: Finished isEmpty. Found accepting run of length 7 [2018-06-25 00:51:53,293 INFO ]: Found error trace [2018-06-25 00:51:53,293 INFO ]: trace histogram [1, 1, 1, 1, 1, 1] [2018-06-25 00:51:53,293 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:51:53,293 INFO ]: Analyzing trace with hash 1097183593, now seen corresponding path program 1 times [2018-06-25 00:51:53,293 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:51:53,293 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:51:53,294 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:53,294 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 00:51:53,294 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:53,326 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:53,461 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:53,461 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 00:51:53,461 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 00:51:53,473 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 00:51:53,525 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:53,535 INFO ]: Computing forward predicates... [2018-06-25 00:51:53,818 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:53,850 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 00:51:53,850 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-25 00:51:53,851 INFO ]: Interpolant automaton has 5 states [2018-06-25 00:51:53,851 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-25 00:51:53,851 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-25 00:51:53,851 INFO ]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-06-25 00:51:53,919 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 00:51:53,919 INFO ]: Finished difference Result 8 states and 8 transitions. [2018-06-25 00:51:53,919 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 00:51:53,919 INFO ]: Start accepts. Automaton has 5 states. Word has length 6 [2018-06-25 00:51:53,919 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 00:51:53,920 INFO ]: With dead ends: 8 [2018-06-25 00:51:53,920 INFO ]: Without dead ends: 8 [2018-06-25 00:51:53,920 INFO ]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 00:51:53,921 INFO ]: Start minimizeSevpa. Operand 8 states. [2018-06-25 00:51:53,922 INFO ]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-06-25 00:51:53,922 INFO ]: Start removeUnreachable. Operand 8 states. [2018-06-25 00:51:53,922 INFO ]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-06-25 00:51:53,922 INFO ]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-06-25 00:51:53,922 INFO ]: Finished accepts. word is rejected. [2018-06-25 00:51:53,922 INFO ]: Abstraction has 8 states and 8 transitions. [2018-06-25 00:51:53,922 INFO ]: Interpolant automaton has 5 states. [2018-06-25 00:51:53,922 INFO ]: Start isEmpty. Operand 8 states and 8 transitions. [2018-06-25 00:51:53,922 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 00:51:53,922 INFO ]: Found error trace [2018-06-25 00:51:53,922 INFO ]: trace histogram [2, 1, 1, 1, 1, 1] [2018-06-25 00:51:53,923 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:51:53,923 INFO ]: Analyzing trace with hash -347342814, now seen corresponding path program 2 times [2018-06-25 00:51:53,923 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:51:53,923 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:51:53,924 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:53,924 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 00:51:53,924 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:53,975 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:54,217 WARN ]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 00:51:54,218 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:54,218 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 00:51:54,218 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 00:51:54,225 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 00:51:54,323 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 00:51:54,323 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:54,330 INFO ]: Computing forward predicates... [2018-06-25 00:51:54,618 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:54,637 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 00:51:54,637 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-25 00:51:54,637 INFO ]: Interpolant automaton has 6 states [2018-06-25 00:51:54,638 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 00:51:54,638 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 00:51:54,638 INFO ]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2018-06-25 00:51:54,931 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 00:51:54,931 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 00:51:54,931 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 00:51:54,931 INFO ]: Start accepts. Automaton has 6 states. Word has length 7 [2018-06-25 00:51:54,932 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 00:51:54,932 INFO ]: With dead ends: 10 [2018-06-25 00:51:54,932 INFO ]: Without dead ends: 10 [2018-06-25 00:51:54,932 INFO ]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2018-06-25 00:51:54,932 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 00:51:54,933 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 00:51:54,933 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 00:51:54,934 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 00:51:54,934 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-06-25 00:51:54,934 INFO ]: Finished accepts. word is rejected. [2018-06-25 00:51:54,934 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 00:51:54,934 INFO ]: Interpolant automaton has 6 states. [2018-06-25 00:51:54,934 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 00:51:54,934 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 00:51:54,934 INFO ]: Found error trace [2018-06-25 00:51:54,934 INFO ]: trace histogram [4, 1, 1, 1, 1, 1] [2018-06-25 00:51:54,934 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:51:54,935 INFO ]: Analyzing trace with hash 1201538306, now seen corresponding path program 3 times [2018-06-25 00:51:54,935 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:51:54,935 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:51:54,935 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:54,935 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 00:51:54,936 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:51:54,987 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:55,397 WARN ]: Spent 162.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 6 [2018-06-25 00:51:55,476 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:51:55,476 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 00:51:55,476 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 00:51:55,482 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 00:51:55,568 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 00:51:55,568 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:51:55,572 INFO ]: Computing forward predicates... [2018-06-25 00:52:13,436 WARN ]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 5 [2018-06-25 00:52:15,943 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:52:15,965 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 00:52:15,966 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-06-25 00:52:15,966 INFO ]: Interpolant automaton has 9 states [2018-06-25 00:52:15,966 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-25 00:52:15,966 INFO ]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-06-25 00:52:15,966 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2018-06-25 00:52:16,115 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 00:52:16,116 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 00:52:16,116 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-25 00:52:16,116 INFO ]: Start accepts. Automaton has 9 states. Word has length 9 [2018-06-25 00:52:16,116 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 00:52:16,116 INFO ]: With dead ends: 11 [2018-06-25 00:52:16,116 INFO ]: Without dead ends: 11 [2018-06-25 00:52:16,116 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2018-06-25 00:52:16,116 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 00:52:16,117 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 00:52:16,117 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 00:52:16,118 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 00:52:16,118 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-25 00:52:16,118 INFO ]: Finished accepts. word is rejected. [2018-06-25 00:52:16,118 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 00:52:16,118 INFO ]: Interpolant automaton has 9 states. [2018-06-25 00:52:16,118 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 00:52:16,118 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 00:52:16,118 INFO ]: Found error trace [2018-06-25 00:52:16,118 INFO ]: trace histogram [5, 1, 1, 1, 1, 1] [2018-06-25 00:52:16,119 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:52:16,119 INFO ]: Analyzing trace with hash -1407314007, now seen corresponding path program 4 times [2018-06-25 00:52:16,119 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:52:16,119 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:52:16,120 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:52:16,120 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 00:52:16,120 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:52:16,184 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:52:16,404 WARN ]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2018-06-25 00:52:17,032 WARN ]: Spent 411.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 6 [2018-06-25 00:52:17,274 WARN ]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-25 00:52:17,515 WARN ]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 00:52:17,784 WARN ]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-25 00:52:17,784 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:52:17,784 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 00:52:17,784 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) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 00:52:17,797 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 00:52:17,846 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 00:52:17,846 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:52:17,851 INFO ]: Computing forward predicates... [2018-06-25 00:52:24,500 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:52:24,522 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 00:52:24,522 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2018-06-25 00:52:24,522 INFO ]: Interpolant automaton has 10 states [2018-06-25 00:52:24,523 INFO ]: Constructing interpolant automaton starting with 10 interpolants. [2018-06-25 00:52:24,523 INFO ]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-06-25 00:52:24,523 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 10 states. [2018-06-25 00:52:24,709 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 00:52:24,709 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-25 00:52:24,709 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-06-25 00:52:24,709 INFO ]: Start accepts. Automaton has 10 states. Word has length 10 [2018-06-25 00:52:24,709 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 00:52:24,709 INFO ]: With dead ends: 13 [2018-06-25 00:52:24,709 INFO ]: Without dead ends: 13 [2018-06-25 00:52:24,710 INFO ]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2018-06-25 00:52:24,710 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-25 00:52:24,711 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-25 00:52:24,711 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-25 00:52:24,711 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-25 00:52:24,711 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-06-25 00:52:24,711 INFO ]: Finished accepts. word is rejected. [2018-06-25 00:52:24,711 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-25 00:52:24,711 INFO ]: Interpolant automaton has 10 states. [2018-06-25 00:52:24,711 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-25 00:52:24,711 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-25 00:52:24,711 INFO ]: Found error trace [2018-06-25 00:52:24,712 INFO ]: trace histogram [7, 1, 1, 1, 1, 1] [2018-06-25 00:52:24,712 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 00:52:24,712 INFO ]: Analyzing trace with hash 476470985, now seen corresponding path program 5 times [2018-06-25 00:52:24,712 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 00:52:24,712 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 00:52:24,712 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:52:24,713 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 00:52:24,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 00:52:24,815 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:52:25,258 INFO ]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 00:52:25,258 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 00:52:25,258 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 00:52:25,267 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-25 00:52:25,348 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2018-06-25 00:52:25,348 INFO ]: Conjunction of SSA is unsat [2018-06-25 00:52:25,352 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-25 00:52:58,287 INFO ]: Timeout while computing interpolants [2018-06-25 00:52:58,488 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 00:52:58,488 WARN ]: Verification canceled [2018-06-25 00:52:58,490 INFO ]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-06-25 00:52:58,491 WARN ]: Timeout [2018-06-25 00:52:58,491 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 12:52:58 BasicIcfg [2018-06-25 00:52:58,491 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 00:52:58,492 INFO ]: Toolchain (without parser) took 66221.25 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 258.0 MB in the beginning and 409.5 MB in the end (delta: -151.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,493 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 00:52:58,493 INFO ]: ChcToBoogie took 65.46 ms. Allocated memory is still 305.7 MB. Free memory was 257.0 MB in the beginning and 255.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,494 INFO ]: Boogie Preprocessor took 53.85 ms. Allocated memory is still 305.7 MB. Free memory was 255.0 MB in the beginning and 254.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,494 INFO ]: RCFGBuilder took 300.54 ms. Allocated memory is still 305.7 MB. Free memory was 254.1 MB in the beginning and 243.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,495 INFO ]: BlockEncodingV2 took 120.10 ms. Allocated memory is still 305.7 MB. Free memory was 243.0 MB in the beginning and 240.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,495 INFO ]: TraceAbstraction took 65671.74 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 239.0 MB in the beginning and 409.5 MB in the end (delta: -170.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 00:52:58,498 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 305.7 MB. Free memory is still 271.1 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 65.46 ms. Allocated memory is still 305.7 MB. Free memory was 257.0 MB in the beginning and 255.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 53.85 ms. Allocated memory is still 305.7 MB. Free memory was 255.0 MB in the beginning and 254.1 MB in the end (delta: 996.3 kB). Peak memory consumption was 996.3 kB. Max. memory is 3.6 GB. * RCFGBuilder took 300.54 ms. Allocated memory is still 305.7 MB. Free memory was 254.1 MB in the beginning and 243.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * BlockEncodingV2 took 120.10 ms. Allocated memory is still 305.7 MB. Free memory was 243.0 MB in the beginning and 240.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 65671.74 ms. Allocated memory was 305.7 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 239.0 MB in the beginning and 409.5 MB in the end (delta: -170.5 MB). Peak memory consumption was 1.3 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 13 with TraceHistMax 7, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was transforming 0 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 6 locations, 1 error locations. TIMEOUT Result, 65.6s OverallTime, 6 OverallIterations, 7 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 54 SDs, 0 SdLazy, 38 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 30.1s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1632 SizeOfPredicates, 20 NumberOfNonLiveVariables, 724 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/58 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/dillig19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-0-2018-06-25_00-52-58-512.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dillig19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-GraphSizeCsvProvider-1-2018-06-25_00-52-58-512.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dillig19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-Benchmark-0-2018-06-25_00-52-58-512.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/dillig19.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC_wBE.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_00-52-58-512.csv Completed graceful shutdown