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/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 08:49:57,568 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 08:49:57,570 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 08:49:57,593 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 08:49:57,593 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 08:49:57,594 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 08:49:57,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 08:49:57,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 08:49:57,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 08:49:57,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 08:49:57,605 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 08:49:57,605 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 08:49:57,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 08:49:57,608 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 08:49:57,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 08:49:57,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 08:49:57,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 08:49:57,628 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 08:49:57,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 08:49:57,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 08:49:57,631 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 08:49:57,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 08:49:57,634 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 08:49:57,634 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 08:49:57,635 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 08:49:57,639 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 08:49:57,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 08:49:57,641 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 08:49:57,642 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 08:49:57,646 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 08:49:57,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 08:49:57,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 08:49:57,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 08:49:57,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 08:49:57,649 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 08:49:57,651 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 08:49:57,670 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 08:49:57,670 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 08:49:57,670 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 08:49:57,670 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 08:49:57,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 08:49:57,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 08:49:57,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 08:49:57,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 08:49:57,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 08:49:57,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 08:49:57,673 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 08:49:57,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 08:49:57,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 08:49:57,676 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 08:49:57,676 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 08:49:57,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 08:49:57,676 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 08:49:57,678 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 08:49:57,678 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 08:49:57,726 INFO ]: Repository-Root is: /tmp [2018-06-22 08:49:57,741 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 08:49:57,746 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 08:49:57,747 INFO ]: Initializing SmtParser... [2018-06-22 08:49:57,748 INFO ]: SmtParser initialized [2018-06-22 08:49:57,748 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 [2018-06-22 08:49:57,750 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 08:49:57,843 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 unknown [2018-06-22 08:49:58,280 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/MESI_i3_e1_447_e1_1292.smt2 [2018-06-22 08:49:58,284 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 08:49:58,295 INFO ]: Walking toolchain with 4 elements. [2018-06-22 08:49:58,295 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 08:49:58,296 INFO ]: Initializing ChcToBoogie... [2018-06-22 08:49:58,305 INFO ]: ChcToBoogie initialized [2018-06-22 08:49:58,308 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,401 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58 Unit [2018-06-22 08:49:58,401 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 08:49:58,402 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 08:49:58,402 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 08:49:58,402 INFO ]: Boogie Preprocessor initialized [2018-06-22 08:49:58,441 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,441 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,469 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,469 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,486 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,487 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,489 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (1/1) ... [2018-06-22 08:49:58,496 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 08:49:58,496 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 08:49:58,496 INFO ]: Initializing RCFGBuilder... [2018-06-22 08:49:58,496 INFO ]: RCFGBuilder initialized [2018-06-22 08:49:58,498 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 08:49:58,512 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 08:49:58,512 INFO ]: Found specification of procedure gotoProc [2018-06-22 08:49:58,512 INFO ]: Found implementation of procedure gotoProc [2018-06-22 08:49:58,512 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 08:49:58,512 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 08:49:58,512 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 08:49:58,935 INFO ]: Using library mode [2018-06-22 08:49:58,937 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:58 BoogieIcfgContainer [2018-06-22 08:49:58,937 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 08:49:58,938 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 08:49:58,938 INFO ]: Initializing TraceAbstraction... [2018-06-22 08:49:58,943 INFO ]: TraceAbstraction initialized [2018-06-22 08:49:58,943 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 08:49:58" (1/3) ... [2018-06-22 08:49:58,944 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736ac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 08:49:58, skipping insertion in model container [2018-06-22 08:49:58,944 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 08:49:58" (2/3) ... [2018-06-22 08:49:58,945 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736ac52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:49:58, skipping insertion in model container [2018-06-22 08:49:58,945 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:49:58" (3/3) ... [2018-06-22 08:49:58,947 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 08:49:58,956 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 08:49:58,965 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 08:49:59,014 INFO ]: Using default assertion order modulation [2018-06-22 08:49:59,015 INFO ]: Interprodecural is true [2018-06-22 08:49:59,015 INFO ]: Hoare is false [2018-06-22 08:49:59,015 INFO ]: Compute interpolants for FPandBP [2018-06-22 08:49:59,015 INFO ]: Backedges is TWOTRACK [2018-06-22 08:49:59,015 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 08:49:59,015 INFO ]: Difference is false [2018-06-22 08:49:59,015 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 08:49:59,015 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 08:49:59,029 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 08:49:59,045 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 08:49:59,045 INFO ]: Found error trace [2018-06-22 08:49:59,046 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:49:59,046 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:49:59,052 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 08:49:59,054 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:49:59,054 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:49:59,087 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:49:59,087 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:49:59,087 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:49:59,198 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:49:59,354 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:49:59,357 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 08:49:59,357 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 08:49:59,359 INFO ]: Interpolant automaton has 3 states [2018-06-22 08:49:59,377 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 08:49:59,377 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 08:49:59,380 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 08:49:59,479 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 08:49:59,479 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 08:49:59,480 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 08:49:59,482 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 08:49:59,482 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 08:49:59,491 INFO ]: With dead ends: 9 [2018-06-22 08:49:59,491 INFO ]: Without dead ends: 9 [2018-06-22 08:49:59,497 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 [2018-06-22 08:49:59,519 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 08:49:59,549 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 08:49:59,550 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 08:49:59,551 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 08:49:59,557 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 08:49:59,557 INFO ]: Finished accepts. word is rejected. [2018-06-22 08:49:59,557 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 08:49:59,557 INFO ]: Interpolant automaton has 3 states. [2018-06-22 08:49:59,557 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 08:49:59,557 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 08:49:59,557 INFO ]: Found error trace [2018-06-22 08:49:59,557 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:49:59,557 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:49:59,558 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 08:49:59,558 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:49:59,558 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:49:59,558 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:49:59,559 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:49:59,559 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:49:59,674 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:50:00,058 WARN ]: Spent 173.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 22 [2018-06-22 08:50:00,060 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:50:00,060 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 08:50:00,060 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 08:50:00,076 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:50:00,211 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:50:00,224 INFO ]: Computing forward predicates... [2018-06-22 08:50:00,781 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:00,797 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:00,813 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:00,826 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 08:50:00,919 WARN ]: expecting exponential blowup for input size 14 [2018-06-22 08:50:01,033 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-22 08:50:02,683 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-22 08:50:02,719 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 08:50:02,752 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 08:50:02,789 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 08:50:03,179 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:03,180 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:03,181 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 08:50:03,185 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:03,188 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:03,189 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 08:50:03,191 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 08:50:03,192 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 08:50:03,203 WARN ]: expecting exponential blowup for input size 13 [2018-06-22 08:50:03,247 WARN ]: Simplifying disjunction of 5184 conjuctions. This might take some time... [2018-06-22 08:50:04,631 INFO ]: Simplified to disjunction of 3456 conjuctions. [2018-06-22 08:50:04,645 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 08:50:04,950 WARN ]: expecting exponential blowup for input size 7 [2018-06-22 08:50:04,953 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:04,954 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:04,955 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:04,996 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:04,998 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:04,999 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:05,001 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 08:50:13,916 WARN ]: Spent 294.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 15 [2018-06-22 08:50:13,919 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:50:13,946 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 08:50:13,946 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 08:50:13,946 INFO ]: Interpolant automaton has 5 states [2018-06-22 08:50:13,947 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 08:50:13,947 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 08:50:13,947 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 08:50:13,992 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 08:50:13,993 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 08:50:13,993 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 08:50:13,993 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 08:50:13,993 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 08:50:13,994 INFO ]: With dead ends: 10 [2018-06-22 08:50:13,994 INFO ]: Without dead ends: 10 [2018-06-22 08:50:13,994 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 08:50:13,995 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 08:50:13,995 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 08:50:13,995 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 08:50:13,996 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 08:50:13,996 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 08:50:13,996 INFO ]: Finished accepts. word is rejected. [2018-06-22 08:50:13,996 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 08:50:13,996 INFO ]: Interpolant automaton has 5 states. [2018-06-22 08:50:13,996 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 08:50:13,996 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 08:50:13,996 INFO ]: Found error trace [2018-06-22 08:50:13,996 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 08:50:13,997 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 08:50:13,997 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 08:50:13,997 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 08:50:13,997 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 08:50:13,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:50:13,998 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 08:50:13,998 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 08:50:14,116 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:50:14,448 WARN ]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2018-06-22 08:50:14,463 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 08:50:14,463 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 08:50:14,463 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 [2018-06-22 08:50:14,475 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 08:50:14,588 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 08:50:14,588 INFO ]: Conjunction of SSA is unsat [2018-06-22 08:50:14,597 INFO ]: Computing forward predicates... [2018-06-22 08:50:16,054 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:16,055 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 08:50:17,381 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:17,381 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 08:50:17,918 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:17,942 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:17,942 WARN ]: expecting exponential blowup for input size 8 [2018-06-22 08:50:17,953 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:17,953 WARN ]: expecting exponential blowup for input size 15 [2018-06-22 08:50:18,201 WARN ]: Simplifying disjunction of 12960 conjuctions. This might take some time... [2018-06-22 08:50:53,901 INFO ]: Simplified to disjunction of 12960 conjuctions. [2018-06-22 08:50:53,947 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:53,961 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 08:50:53,961 WARN ]: expecting exponential blowup for input size 14 [2018-06-22 08:50:54,088 WARN ]: Simplifying disjunction of 12960 conjuctions. This might take some time... Received shutdown request... [2018-06-22 08:51:10,525 INFO ]: Timeout while computing interpolants [2018-06-22 08:51:10,726 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 08:51:10,726 WARN ]: Verification canceled [2018-06-22 08:51:10,730 WARN ]: Timeout [2018-06-22 08:51:10,733 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:51:10 BoogieIcfgContainer [2018-06-22 08:51:10,733 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 08:51:10,734 INFO ]: Toolchain (without parser) took 72448.73 ms. Allocated memory was 307.2 MB in the beginning and 1.0 GB in the end (delta: 696.8 MB). Free memory was 249.7 MB in the beginning and 953.8 MB in the end (delta: -704.1 MB). Peak memory consumption was 762.1 MB. Max. memory is 3.6 GB. [2018-06-22 08:51:10,735 INFO ]: SmtParser took 0.08 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 08:51:10,735 INFO ]: ChcToBoogie took 105.91 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 245.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:51:10,735 INFO ]: Boogie Preprocessor took 94.10 ms. Allocated memory is still 307.2 MB. Free memory was 245.7 MB in the beginning and 243.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:51:10,736 INFO ]: RCFGBuilder took 440.72 ms. Allocated memory is still 307.2 MB. Free memory was 243.7 MB in the beginning and 217.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. [2018-06-22 08:51:10,736 INFO ]: TraceAbstraction took 71794.52 ms. Allocated memory was 307.2 MB in the beginning and 1.0 GB in the end (delta: 696.8 MB). Free memory was 217.7 MB in the beginning and 953.8 MB in the end (delta: -736.1 MB). Peak memory consumption was 730.2 MB. Max. memory is 3.6 GB. [2018-06-22 08:51:10,739 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 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 105.91 ms. Allocated memory is still 307.2 MB. Free memory was 249.7 MB in the beginning and 245.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 94.10 ms. Allocated memory is still 307.2 MB. Free memory was 245.7 MB in the beginning and 243.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 440.72 ms. Allocated memory is still 307.2 MB. Free memory was 243.7 MB in the beginning and 217.7 MB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 71794.52 ms. Allocated memory was 307.2 MB in the beginning and 1.0 GB in the end (delta: 696.8 MB). Free memory was 217.7 MB in the beginning and 953.8 MB in the end (delta: -736.1 MB). Peak memory consumption was 730.2 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 (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 10 with TraceHistMax 2, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 12960 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 71.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 497 SizeOfPredicates, 4 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/MESI_i3_e1_447_e1_1292.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_08-51-10-750.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/MESI_i3_e1_447_e1_1292.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_08-51-10-750.csv Completed graceful shutdown