java -Xss1g -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.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/incremental.35.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 00:48:56,975 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 00:48:56,978 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 00:48:56,991 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 00:48:56,991 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 00:48:56,992 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 00:48:56,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 00:48:57,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 00:48:57,002 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 00:48:57,003 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 00:48:57,005 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 00:48:57,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 00:48:57,006 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 00:48:57,007 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 00:48:57,008 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 00:48:57,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 00:48:57,020 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 00:48:57,022 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 00:48:57,023 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 00:48:57,024 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 00:48:57,025 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 00:48:57,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 00:48:57,031 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 00:48:57,031 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 00:48:57,032 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 00:48:57,033 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 00:48:57,033 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 00:48:57,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 00:48:57,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 00:48:57,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 00:48:57,038 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 00:48:57,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 00:48:57,038 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 00:48:57,044 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 00:48:57,044 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 00:48:57,045 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 00:48:57,065 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 00:48:57,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 00:48:57,065 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 00:48:57,066 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 00:48:57,067 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 00:48:57,067 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 00:48:57,067 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 00:48:57,067 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 00:48:57,067 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 00:48:57,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 00:48:57,068 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 00:48:57,068 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 00:48:57,069 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 00:48:57,069 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 00:48:57,069 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 00:48:57,069 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 00:48:57,069 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 00:48:57,071 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 00:48:57,071 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 00:48:57,111 INFO ]: Repository-Root is: /tmp [2018-06-22 00:48:57,127 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 00:48:57,132 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 00:48:57,133 INFO ]: Initializing SmtParser... [2018-06-22 00:48:57,134 INFO ]: SmtParser initialized [2018-06-22 00:48:57,134 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.35.smt2 [2018-06-22 00:48:57,136 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 [2018-06-22 00:48:57,228 INFO ]: Executing SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.35.smt2 unknown [2018-06-22 00:48:58,021 INFO ]: Succesfully executed SMT file /storage/chc-comp/eldarica-misc/LIA/Consistency/incremental.35.smt2 [2018-06-22 00:48:58,026 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 00:48:58,032 INFO ]: Walking toolchain with 4 elements. [2018-06-22 00:48:58,033 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 00:48:58,033 INFO ]: Initializing ChcToBoogie... [2018-06-22 00:48:58,033 INFO ]: ChcToBoogie initialized [2018-06-22 00:48:58,036 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,214 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58 Unit [2018-06-22 00:48:58,214 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 00:48:58,215 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 00:48:58,215 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 00:48:58,215 INFO ]: Boogie Preprocessor initialized [2018-06-22 00:48:58,236 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,236 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,259 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,259 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,295 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,300 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,306 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (1/1) ... [2018-06-22 00:48:58,314 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 00:48:58,314 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 00:48:58,314 INFO ]: Initializing RCFGBuilder... [2018-06-22 00:48:58,314 INFO ]: RCFGBuilder initialized [2018-06-22 00:48:58,315 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (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) [2018-06-22 00:48:58,335 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 00:48:58,335 INFO ]: Found specification of procedure gotoProc [2018-06-22 00:48:58,335 INFO ]: Found implementation of procedure gotoProc [2018-06-22 00:48:58,335 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 00:48:58,335 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 00:48:58,335 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 [2018-06-22 00:49:00,613 INFO ]: Using library mode [2018-06-22 00:49:00,614 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:49:00 BoogieIcfgContainer [2018-06-22 00:49:00,614 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 00:49:00,615 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 00:49:00,615 INFO ]: Initializing TraceAbstraction... [2018-06-22 00:49:00,624 INFO ]: TraceAbstraction initialized [2018-06-22 00:49:00,624 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 12:48:58" (1/3) ... [2018-06-22 00:49:00,625 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1bda4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 12:49:00, skipping insertion in model container [2018-06-22 00:49:00,625 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 12:48:58" (2/3) ... [2018-06-22 00:49:00,625 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1bda4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 12:49:00, skipping insertion in model container [2018-06-22 00:49:00,625 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 12:49:00" (3/3) ... [2018-06-22 00:49:00,627 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 00:49:00,635 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 00:49:00,643 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 00:49:00,681 INFO ]: Using default assertion order modulation [2018-06-22 00:49:00,682 INFO ]: Interprodecural is true [2018-06-22 00:49:00,682 INFO ]: Hoare is false [2018-06-22 00:49:00,682 INFO ]: Compute interpolants for FPandBP [2018-06-22 00:49:00,682 INFO ]: Backedges is TWOTRACK [2018-06-22 00:49:00,682 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 00:49:00,682 INFO ]: Difference is false [2018-06-22 00:49:00,682 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 00:49:00,682 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 00:49:00,706 INFO ]: Start isEmpty. Operand 146 states. [2018-06-22 00:49:00,728 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 00:49:00,728 INFO ]: Found error trace [2018-06-22 00:49:00,729 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:49:00,729 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:49:00,734 INFO ]: Analyzing trace with hash 604148912, now seen corresponding path program 1 times [2018-06-22 00:49:00,736 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:49:00,736 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:49:00,799 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:00,799 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:49:00,799 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:00,924 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:49:01,307 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:49:01,310 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:49:01,310 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:49:01,312 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:49:01,327 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:49:01,327 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:49:01,330 INFO ]: Start difference. First operand 146 states. Second operand 4 states. [2018-06-22 00:49:04,781 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:49:04,782 INFO ]: Finished difference Result 285 states and 555 transitions. [2018-06-22 00:49:04,782 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:49:04,783 INFO ]: Start accepts. Automaton has 4 states. Word has length 7 [2018-06-22 00:49:04,784 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:49:04,829 INFO ]: With dead ends: 285 [2018-06-22 00:49:04,829 INFO ]: Without dead ends: 275 [2018-06-22 00:49:04,859 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:49:04,876 INFO ]: Start minimizeSevpa. Operand 275 states. [2018-06-22 00:49:05,005 INFO ]: Finished minimizeSevpa. Reduced states from 275 to 275. [2018-06-22 00:49:05,006 INFO ]: Start removeUnreachable. Operand 275 states. [2018-06-22 00:49:05,035 INFO ]: Finished removeUnreachable. Reduced from 275 states to 275 states and 537 transitions. [2018-06-22 00:49:05,036 INFO ]: Start accepts. Automaton has 275 states and 537 transitions. Word has length 7 [2018-06-22 00:49:05,037 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:49:05,037 INFO ]: Abstraction has 275 states and 537 transitions. [2018-06-22 00:49:05,037 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:49:05,037 INFO ]: Start isEmpty. Operand 275 states and 537 transitions. [2018-06-22 00:49:05,046 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 00:49:05,046 INFO ]: Found error trace [2018-06-22 00:49:05,046 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:49:05,047 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:49:05,047 INFO ]: Analyzing trace with hash -790434761, now seen corresponding path program 1 times [2018-06-22 00:49:05,047 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:49:05,047 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:49:05,048 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:05,048 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:49:05,048 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:05,060 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:49:05,259 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 00:49:05,259 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 00:49:05,259 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 00:49:05,261 INFO ]: Interpolant automaton has 4 states [2018-06-22 00:49:05,261 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 00:49:05,261 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 00:49:05,261 INFO ]: Start difference. First operand 275 states and 537 transitions. Second operand 4 states. [2018-06-22 00:49:07,365 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:49:07,365 INFO ]: Finished difference Result 411 states and 804 transitions. [2018-06-22 00:49:07,367 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 00:49:07,367 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 00:49:07,367 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:49:07,397 INFO ]: With dead ends: 411 [2018-06-22 00:49:07,397 INFO ]: Without dead ends: 411 [2018-06-22 00:49:07,398 INFO ]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-06-22 00:49:07,398 INFO ]: Start minimizeSevpa. Operand 411 states. [2018-06-22 00:49:07,474 INFO ]: Finished minimizeSevpa. Reduced states from 411 to 411. [2018-06-22 00:49:07,474 INFO ]: Start removeUnreachable. Operand 411 states. [2018-06-22 00:49:07,491 INFO ]: Finished removeUnreachable. Reduced from 411 states to 411 states and 804 transitions. [2018-06-22 00:49:07,491 INFO ]: Start accepts. Automaton has 411 states and 804 transitions. Word has length 9 [2018-06-22 00:49:07,491 INFO ]: Finished accepts. word is rejected. [2018-06-22 00:49:07,491 INFO ]: Abstraction has 411 states and 804 transitions. [2018-06-22 00:49:07,491 INFO ]: Interpolant automaton has 4 states. [2018-06-22 00:49:07,491 INFO ]: Start isEmpty. Operand 411 states and 804 transitions. [2018-06-22 00:49:07,515 INFO ]: Finished isEmpty. Found accepting run of length 19 [2018-06-22 00:49:07,515 INFO ]: Found error trace [2018-06-22 00:49:07,515 INFO ]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 00:49:07,515 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 00:49:07,515 INFO ]: Analyzing trace with hash -1680976478, now seen corresponding path program 1 times [2018-06-22 00:49:07,516 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 00:49:07,516 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 00:49:07,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:07,516 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:49:07,516 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 00:49:07,571 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:49:07,722 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:49:07,722 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 00:49:07,722 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 [2018-06-22 00:49:07,738 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 00:49:07,843 INFO ]: Conjunction of SSA is unsat [2018-06-22 00:49:07,855 INFO ]: Computing forward predicates... [2018-06-22 00:49:08,145 INFO ]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-06-22 00:49:08,172 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 00:49:08,172 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-06-22 00:49:08,172 INFO ]: Interpolant automaton has 12 states [2018-06-22 00:49:08,172 INFO ]: Constructing interpolant automaton starting with 12 interpolants. [2018-06-22 00:49:08,172 INFO ]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-06-22 00:49:08,172 INFO ]: Start difference. First operand 411 states and 804 transitions. Second operand 12 states. [2018-06-22 00:49:57,904 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 00:49:57,904 INFO ]: Finished difference Result 3408 states and 28103 transitions. [2018-06-22 00:49:57,904 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-06-22 00:49:57,904 INFO ]: Start accepts. Automaton has 12 states. Word has length 18 [2018-06-22 00:49:57,904 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 00:50:00,433 INFO ]: With dead ends: 3408 [2018-06-22 00:50:00,434 INFO ]: Without dead ends: 3408 [2018-06-22 00:50:00,434 INFO ]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2018-06-22 00:50:00,436 INFO ]: Start minimizeSevpa. Operand 3408 states. Received shutdown request... [2018-06-22 00:50:01,496 WARN ]: Verification canceled [2018-06-22 00:50:01,501 WARN ]: Timeout [2018-06-22 00:50:01,502 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 12:50:01 BoogieIcfgContainer [2018-06-22 00:50:01,502 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 00:50:01,503 INFO ]: Toolchain (without parser) took 63475.97 ms. Allocated memory was 307.2 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 215.8 MB in the beginning and 982.4 MB in the end (delta: -766.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 00:50:01,504 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 00:50:01,506 INFO ]: ChcToBoogie took 181.70 ms. Allocated memory is still 307.2 MB. Free memory was 215.8 MB in the beginning and 209.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:50:01,506 INFO ]: Boogie Preprocessor took 99.15 ms. Allocated memory is still 307.2 MB. Free memory was 209.8 MB in the beginning and 205.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 00:50:01,507 INFO ]: RCFGBuilder took 2299.25 ms. Allocated memory was 307.2 MB in the beginning and 323.0 MB in the end (delta: 15.7 MB). Free memory was 205.8 MB in the beginning and 177.8 MB in the end (delta: 28.0 MB). Peak memory consumption was 43.8 MB. Max. memory is 3.6 GB. [2018-06-22 00:50:01,507 INFO ]: TraceAbstraction took 60886.48 ms. Allocated memory was 323.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 177.8 MB in the beginning and 982.4 MB in the end (delta: -804.6 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 00:50:01,515 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 307.2 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 181.70 ms. Allocated memory is still 307.2 MB. Free memory was 215.8 MB in the beginning and 209.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 99.15 ms. Allocated memory is still 307.2 MB. Free memory was 209.8 MB in the beginning and 205.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 2299.25 ms. Allocated memory was 307.2 MB in the beginning and 323.0 MB in the end (delta: 15.7 MB). Free memory was 205.8 MB in the beginning and 177.8 MB in the end (delta: 28.0 MB). Peak memory consumption was 43.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 60886.48 ms. Allocated memory was 323.0 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 177.8 MB in the beginning and 982.4 MB in the end (delta: -804.6 MB). Peak memory consumption was 1.2 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 (line 0). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 146 locations, 1 error locations. TIMEOUT Result, 60.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 57.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7666 SDtfs, 984 SDslu, 34259 SDs, 0 SdLazy, 40633 SolverSat, 4543 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1706 SizeOfPredicates, 7 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/10 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/incremental.35.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_00-50-01-533.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/incremental.35.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_00-50-01-533.csv Completed graceful shutdown