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/switch.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 09:50:30,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 09:50:30,594 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 09:50:30,605 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 09:50:30,605 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 09:50:30,606 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 09:50:30,608 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 09:50:30,610 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 09:50:30,612 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 09:50:30,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 09:50:30,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 09:50:30,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 09:50:30,616 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 09:50:30,620 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 09:50:30,621 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 09:50:30,622 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 09:50:30,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 09:50:30,626 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 09:50:30,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 09:50:30,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 09:50:30,629 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 09:50:30,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 09:50:30,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 09:50:30,632 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 09:50:30,633 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 09:50:30,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 09:50:30,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 09:50:30,635 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 09:50:30,637 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 09:50:30,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 09:50:30,637 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 09:50:30,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 09:50:30,638 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 09:50:30,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 09:50:30,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 09:50:30,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 09:50:30,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 09:50:30,654 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 09:50:30,654 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 09:50:30,654 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 09:50:30,656 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 09:50:30,656 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 09:50:30,656 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 09:50:30,656 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 09:50:30,656 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 09:50:30,657 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 09:50:30,657 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 09:50:30,657 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 09:50:30,657 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 09:50:30,657 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 09:50:30,657 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 09:50:30,658 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 09:50:30,658 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 09:50:30,659 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 09:50:30,660 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 09:50:30,700 INFO ]: Repository-Root is: /tmp [2018-06-22 09:50:30,712 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 09:50:30,716 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 09:50:30,718 INFO ]: Initializing SmtParser... [2018-06-22 09:50:30,718 INFO ]: SmtParser initialized [2018-06-22 09:50:30,718 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/switch.smt2 [2018-06-22 09:50:30,720 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 09:50:30,816 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/switch.smt2 unknown [2018-06-22 09:50:31,064 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/switch.smt2 [2018-06-22 09:50:31,068 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 09:50:31,077 INFO ]: Walking toolchain with 4 elements. [2018-06-22 09:50:31,077 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 09:50:31,077 INFO ]: Initializing ChcToBoogie... [2018-06-22 09:50:31,077 INFO ]: ChcToBoogie initialized [2018-06-22 09:50:31,081 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,138 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31 Unit [2018-06-22 09:50:31,138 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 09:50:31,139 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 09:50:31,139 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 09:50:31,139 INFO ]: Boogie Preprocessor initialized [2018-06-22 09:50:31,156 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,156 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,161 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,161 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,164 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,165 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,166 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (1/1) ... [2018-06-22 09:50:31,168 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 09:50:31,169 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 09:50:31,169 INFO ]: Initializing RCFGBuilder... [2018-06-22 09:50:31,169 INFO ]: RCFGBuilder initialized [2018-06-22 09:50:31,170 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (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 09:50:31,182 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 09:50:31,182 INFO ]: Found specification of procedure gotoProc [2018-06-22 09:50:31,182 INFO ]: Found implementation of procedure gotoProc [2018-06-22 09:50:31,182 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 09:50:31,182 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 09:50:31,182 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 09:50:31,388 INFO ]: Using library mode [2018-06-22 09:50:31,388 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:50:31 BoogieIcfgContainer [2018-06-22 09:50:31,388 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 09:50:31,390 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 09:50:31,390 INFO ]: Initializing TraceAbstraction... [2018-06-22 09:50:31,393 INFO ]: TraceAbstraction initialized [2018-06-22 09:50:31,393 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 09:50:31" (1/3) ... [2018-06-22 09:50:31,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9648c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 09:50:31, skipping insertion in model container [2018-06-22 09:50:31,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 09:50:31" (2/3) ... [2018-06-22 09:50:31,394 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9648c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:50:31, skipping insertion in model container [2018-06-22 09:50:31,394 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:50:31" (3/3) ... [2018-06-22 09:50:31,396 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 09:50:31,404 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 09:50:31,411 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 09:50:31,444 INFO ]: Using default assertion order modulation [2018-06-22 09:50:31,445 INFO ]: Interprodecural is true [2018-06-22 09:50:31,445 INFO ]: Hoare is false [2018-06-22 09:50:31,445 INFO ]: Compute interpolants for FPandBP [2018-06-22 09:50:31,445 INFO ]: Backedges is TWOTRACK [2018-06-22 09:50:31,445 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 09:50:31,445 INFO ]: Difference is false [2018-06-22 09:50:31,445 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 09:50:31,445 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 09:50:31,458 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 09:50:31,467 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 09:50:31,467 INFO ]: Found error trace [2018-06-22 09:50:31,468 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:50:31,468 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:50:31,473 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 09:50:31,475 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:50:31,475 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:50:31,508 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:31,508 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:50:31,508 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:31,558 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:50:31,727 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:50:31,729 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 09:50:31,729 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 09:50:31,731 INFO ]: Interpolant automaton has 3 states [2018-06-22 09:50:31,754 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 09:50:31,755 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 09:50:31,757 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 09:50:31,838 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:50:31,838 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 09:50:31,839 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 09:50:31,840 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 09:50:31,841 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:50:31,850 INFO ]: With dead ends: 9 [2018-06-22 09:50:31,850 INFO ]: Without dead ends: 9 [2018-06-22 09:50:31,852 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 09:50:31,870 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 09:50:31,898 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 09:50:31,900 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 09:50:31,900 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 09:50:31,901 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 09:50:31,902 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:50:31,902 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 09:50:31,902 INFO ]: Interpolant automaton has 3 states. [2018-06-22 09:50:31,902 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 09:50:31,902 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 09:50:31,902 INFO ]: Found error trace [2018-06-22 09:50:31,902 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:50:31,902 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:50:31,902 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 09:50:31,902 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:50:31,902 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:50:31,903 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:31,903 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:50:31,903 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:31,932 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:50:32,146 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:50:32,146 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 09:50:32,146 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 09:50:32,155 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:50:32,195 INFO ]: Conjunction of SSA is unsat [2018-06-22 09:50:32,204 INFO ]: Computing forward predicates... [2018-06-22 09:50:34,099 WARN ]: expecting exponential blowup for input size 11 [2018-06-22 09:50:35,230 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:50:35,506 WARN ]: expecting exponential blowup for input size 9 [2018-06-22 09:50:35,591 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:50:35,592 WARN ]: expecting exponential blowup for input size 10 [2018-06-22 09:50:36,118 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 09:50:36,140 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 09:50:36,140 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 09:50:36,140 INFO ]: Interpolant automaton has 6 states [2018-06-22 09:50:36,141 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 09:50:36,141 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 09:50:36,141 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 09:50:36,321 WARN ]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-06-22 09:50:36,330 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 09:50:36,330 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 09:50:36,331 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 09:50:36,331 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 09:50:36,331 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 09:50:36,331 INFO ]: With dead ends: 10 [2018-06-22 09:50:36,331 INFO ]: Without dead ends: 10 [2018-06-22 09:50:36,332 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-22 09:50:36,332 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 09:50:36,333 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 09:50:36,333 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 09:50:36,333 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 09:50:36,333 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 09:50:36,333 INFO ]: Finished accepts. word is rejected. [2018-06-22 09:50:36,333 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 09:50:36,333 INFO ]: Interpolant automaton has 6 states. [2018-06-22 09:50:36,333 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 09:50:36,333 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 09:50:36,333 INFO ]: Found error trace [2018-06-22 09:50:36,334 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 09:50:36,334 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 09:50:36,334 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-22 09:50:36,334 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 09:50:36,334 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 09:50:36,335 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:36,335 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 09:50:36,335 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 09:50:36,362 INFO ]: Conjunction of SSA is sat [2018-06-22 09:50:36,364 INFO ]: Counterexample might be feasible [2018-06-22 09:50:36,381 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:50:36 BoogieIcfgContainer [2018-06-22 09:50:36,381 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 09:50:36,382 INFO ]: Toolchain (without parser) took 5313.11 ms. Allocated memory was 306.7 MB in the beginning and 356.0 MB in the end (delta: 49.3 MB). Free memory was 260.2 MB in the beginning and 261.2 MB in the end (delta: -944.0 kB). Peak memory consumption was 48.3 MB. Max. memory is 3.6 GB. [2018-06-22 09:50:36,383 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 09:50:36,383 INFO ]: ChcToBoogie took 61.50 ms. Allocated memory is still 306.7 MB. Free memory was 260.2 MB in the beginning and 258.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:50:36,384 INFO ]: Boogie Preprocessor took 29.03 ms. Allocated memory is still 306.7 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:50:36,385 INFO ]: RCFGBuilder took 219.75 ms. Allocated memory is still 306.7 MB. Free memory was 256.3 MB in the beginning and 245.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-22 09:50:36,385 INFO ]: TraceAbstraction took 4991.15 ms. Allocated memory was 306.7 MB in the beginning and 356.0 MB in the end (delta: 49.3 MB). Free memory was 244.3 MB in the beginning and 261.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 32.4 MB. Max. memory is 3.6 GB. [2018-06-22 09:50:36,388 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 306.7 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.50 ms. Allocated memory is still 306.7 MB. Free memory was 260.2 MB in the beginning and 258.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 29.03 ms. Allocated memory is still 306.7 MB. Free memory was 258.3 MB in the beginning and 256.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 219.75 ms. Allocated memory is still 306.7 MB. Free memory was 256.3 MB in the beginning and 245.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 4991.15 ms. Allocated memory was 306.7 MB in the beginning and 356.0 MB in the end (delta: 49.3 MB). Free memory was 244.3 MB in the beginning and 261.2 MB in the end (delta: -16.9 MB). Peak memory consumption was 32.4 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [UNKNOWN] : assertion can be violated assertion can be violated We found a FailurePath: [L0] CALL call gotoProc(0, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false); [L0] gotoSwitch := gotoSwitch_in; [L0] assume !hbv_False_1_Bool; [L0] hhv_state_0_Bool, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Bool, hhv_state_4_Bool, hhv_state_5_Bool, hhv_state_6_Bool, hhv_state_7_Bool, hhv_state_8_Bool, hhv_state_9_Bool, hhv_state_10_Bool, hhv_state_11_Bool, hhv_state_12_Bool, hhv_state_13_Bool, hhv_state_14_Bool := hbv_False_2_Bool, hbv_False_3_Bool, hbv_False_4_Bool, hbv_False_5_Bool, hbv_False_6_Bool, hbv_False_7_Bool, hbv_False_8_Bool, hbv_False_9_Bool, hbv_False_10_Bool, hbv_False_11_Bool, hbv_False_1_Bool, hbv_False_12_Bool, hbv_False_13_Bool, hbv_False_14_Bool, hbv_False_15_Bool; [L0] havoc hbv_False_1_Bool, hbv_False_5_Bool, hbv_False_8_Bool, hbv_False_6_Bool, hbv_False_15_Bool, hbv_False_7_Bool, hbv_False_2_Bool, hbv_False_9_Bool, hbv_False_11_Bool, hbv_False_10_Bool, hbv_False_14_Bool, hbv_False_13_Bool, hbv_False_4_Bool, hbv_False_12_Bool, hbv_False_3_Bool; [L0] assume ((((((((((((((((((((((((!(!hhv_state_5_Bool && hhv_state_4_Bool) && !((!hbv_state_7_Bool || !hbv_state_6_Bool) && (hbv_state_7_Bool || hbv_state_6_Bool))) && !((hbv_state_8_Bool && hbv_state_3_Bool) && !hbv_state_9_Bool)) && !((!hbv_state_11_Bool || !hbv_state_9_Bool) && (hbv_state_11_Bool || hbv_state_9_Bool))) && !((hhv_state_4_Bool && !hbv_state_6_Bool) && !hhv_state_14_Bool)) && !((!hhv_state_2_Bool || !hhv_state_14_Bool) && (hhv_state_14_Bool || hhv_state_2_Bool))) && !((hhv_state_9_Bool || hhv_state_1_Bool) && (!hhv_state_1_Bool || !hhv_state_9_Bool))) && !(((!hbv_state_1_Bool || !hbv_state_2_Bool) && !hbv_state_3_Bool) && (hbv_state_1_Bool || hbv_state_2_Bool))) && !((hhv_state_10_Bool || hhv_state_8_Bool) && (!hhv_state_10_Bool || !hhv_state_8_Bool))) && !((!hhv_state_3_Bool || !hhv_state_11_Bool) && (hhv_state_11_Bool || hhv_state_3_Bool))) && !(hhv_state_7_Bool && hhv_state_13_Bool)) && !((hbv_state_4_Bool || hbv_state_10_Bool) && (!hbv_state_4_Bool || !hbv_state_10_Bool))) && !(((hbv_state_4_Bool || hhv_state_6_Bool) && !hhv_state_7_Bool) && (!hbv_state_4_Bool || !hhv_state_6_Bool))) && !(((!hhv_state_6_Bool || !hhv_state_5_Bool) && (hhv_state_5_Bool || hhv_state_6_Bool)) && !hhv_state_4_Bool)) && !(((((hbv_state_7_Bool || hbv_state_5_Bool) && (!hbv_state_7_Bool || !hbv_state_5_Bool)) || !hbv_state_9_Bool) && (!hbv_state_3_Bool || !hbv_state_8_Bool)) && (((hbv_state_7_Bool && hbv_state_5_Bool) || (!hbv_state_7_Bool && !hbv_state_5_Bool)) || hbv_state_9_Bool))) && !((hbv_state_4_Bool || hbv_state_5_Bool) && (!hbv_state_4_Bool || !hbv_state_5_Bool))) && !((!hbv_state_12_Bool || !hbv_state_6_Bool) && (hbv_state_12_Bool || hbv_state_6_Bool))) && !(((((!hhv_state_9_Bool && !hhv_state_11_Bool) || (hhv_state_11_Bool && hhv_state_9_Bool)) || hhv_state_8_Bool) && (!hhv_state_8_Bool || ((hhv_state_11_Bool || hhv_state_9_Bool) && (!hhv_state_9_Bool || !hhv_state_11_Bool)))) && (!hhv_state_7_Bool || !hhv_state_4_Bool))) && !(((!hhv_state_13_Bool || !hhv_state_14_Bool) && (hbv_state_6_Bool || !hhv_state_4_Bool)) && (hhv_state_14_Bool || hhv_state_13_Bool))) && !((!hhv_state_1_Bool || !hhv_state_0_Bool) && (hhv_state_0_Bool || hhv_state_1_Bool))) && !((hhv_state_5_Bool || hhv_state_0_Bool) && (!hhv_state_5_Bool || !hhv_state_0_Bool))) && !(hhv_state_7_Bool && hhv_state_6_Bool)) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && !((hhv_state_7_Bool && hhv_state_4_Bool) && !hhv_state_8_Bool)) && !(!hbv_state_1_Bool && hbv_state_3_Bool)) && !(((hhv_state_13_Bool || hbv_state_6_Bool) && (!hhv_state_13_Bool || !hbv_state_6_Bool)) && !hhv_state_7_Bool); [L0] hhv_state_0_Bool, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Bool, hhv_state_4_Bool, hhv_state_5_Bool, hhv_state_6_Bool, hhv_state_7_Bool, hhv_state_8_Bool, hhv_state_9_Bool, hhv_state_10_Bool, hhv_state_11_Bool, hhv_state_12_Bool, hhv_state_13_Bool, hhv_state_14_Bool := hbv_state_10_Bool, hbv_state_4_Bool, hbv_state_12_Bool, hbv_state_6_Bool, hbv_state_3_Bool, hbv_state_1_Bool, hbv_state_2_Bool, hbv_state_8_Bool, hbv_state_9_Bool, hbv_state_5_Bool, hbv_state_11_Bool, hbv_state_7_Bool, hbv_state_13_Bool, hbv_state_14_Bool, hbv_state_15_Bool; [L0] havoc hbv_state_11_Bool, hbv_state_13_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_10_Bool, hbv_state_4_Bool, hbv_state_8_Bool, hbv_state_14_Bool, hbv_state_7_Bool, hbv_state_15_Bool, hbv_state_1_Bool, hbv_state_2_Bool, hbv_state_5_Bool, hbv_state_9_Bool, hbv_state_12_Bool; [L0] assume ((((((((((((((((((((((((!(!hhv_state_5_Bool && hhv_state_4_Bool) && !((!hbv_state_7_Bool || !hbv_state_6_Bool) && (hbv_state_7_Bool || hbv_state_6_Bool))) && !((hbv_state_8_Bool && hbv_state_3_Bool) && !hbv_state_9_Bool)) && !((!hbv_state_11_Bool || !hbv_state_9_Bool) && (hbv_state_11_Bool || hbv_state_9_Bool))) && !((hhv_state_4_Bool && !hbv_state_6_Bool) && !hhv_state_14_Bool)) && !((!hhv_state_2_Bool || !hhv_state_14_Bool) && (hhv_state_14_Bool || hhv_state_2_Bool))) && !((hhv_state_9_Bool || hhv_state_1_Bool) && (!hhv_state_1_Bool || !hhv_state_9_Bool))) && !(((!hbv_state_1_Bool || !hbv_state_2_Bool) && !hbv_state_3_Bool) && (hbv_state_1_Bool || hbv_state_2_Bool))) && !((hhv_state_10_Bool || hhv_state_8_Bool) && (!hhv_state_10_Bool || !hhv_state_8_Bool))) && !((!hhv_state_3_Bool || !hhv_state_11_Bool) && (hhv_state_11_Bool || hhv_state_3_Bool))) && !(hhv_state_7_Bool && hhv_state_13_Bool)) && !((hbv_state_4_Bool || hbv_state_10_Bool) && (!hbv_state_4_Bool || !hbv_state_10_Bool))) && !(((hbv_state_4_Bool || hhv_state_6_Bool) && !hhv_state_7_Bool) && (!hbv_state_4_Bool || !hhv_state_6_Bool))) && !(((!hhv_state_6_Bool || !hhv_state_5_Bool) && (hhv_state_5_Bool || hhv_state_6_Bool)) && !hhv_state_4_Bool)) && !(((((hbv_state_7_Bool || hbv_state_5_Bool) && (!hbv_state_7_Bool || !hbv_state_5_Bool)) || !hbv_state_9_Bool) && (!hbv_state_3_Bool || !hbv_state_8_Bool)) && (((hbv_state_7_Bool && hbv_state_5_Bool) || (!hbv_state_7_Bool && !hbv_state_5_Bool)) || hbv_state_9_Bool))) && !((hbv_state_4_Bool || hbv_state_5_Bool) && (!hbv_state_4_Bool || !hbv_state_5_Bool))) && !((!hbv_state_12_Bool || !hbv_state_6_Bool) && (hbv_state_12_Bool || hbv_state_6_Bool))) && !(((((!hhv_state_9_Bool && !hhv_state_11_Bool) || (hhv_state_11_Bool && hhv_state_9_Bool)) || hhv_state_8_Bool) && (!hhv_state_8_Bool || ((hhv_state_11_Bool || hhv_state_9_Bool) && (!hhv_state_9_Bool || !hhv_state_11_Bool)))) && (!hhv_state_7_Bool || !hhv_state_4_Bool))) && !(((!hhv_state_13_Bool || !hhv_state_14_Bool) && (hbv_state_6_Bool || !hhv_state_4_Bool)) && (hhv_state_14_Bool || hhv_state_13_Bool))) && !((!hhv_state_1_Bool || !hhv_state_0_Bool) && (hhv_state_0_Bool || hhv_state_1_Bool))) && !((hhv_state_5_Bool || hhv_state_0_Bool) && (!hhv_state_5_Bool || !hhv_state_0_Bool))) && !(hhv_state_7_Bool && hhv_state_6_Bool)) && !((!hhv_state_3_Bool || !hhv_state_2_Bool) && (hhv_state_3_Bool || hhv_state_2_Bool))) && !((hhv_state_7_Bool && hhv_state_4_Bool) && !hhv_state_8_Bool)) && !(!hbv_state_1_Bool && hbv_state_3_Bool)) && !(((hhv_state_13_Bool || hbv_state_6_Bool) && (!hhv_state_13_Bool || !hbv_state_6_Bool)) && !hhv_state_7_Bool); [L0] hhv_state_0_Bool, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Bool, hhv_state_4_Bool, hhv_state_5_Bool, hhv_state_6_Bool, hhv_state_7_Bool, hhv_state_8_Bool, hhv_state_9_Bool, hhv_state_10_Bool, hhv_state_11_Bool, hhv_state_12_Bool, hhv_state_13_Bool, hhv_state_14_Bool := hbv_state_10_Bool, hbv_state_4_Bool, hbv_state_12_Bool, hbv_state_6_Bool, hbv_state_3_Bool, hbv_state_1_Bool, hbv_state_2_Bool, hbv_state_8_Bool, hbv_state_9_Bool, hbv_state_5_Bool, hbv_state_11_Bool, hbv_state_7_Bool, hbv_state_13_Bool, hbv_state_14_Bool, hbv_state_15_Bool; [L0] havoc hbv_state_11_Bool, hbv_state_13_Bool, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_10_Bool, hbv_state_4_Bool, hbv_state_8_Bool, hbv_state_14_Bool, hbv_state_7_Bool, hbv_state_15_Bool, hbv_state_1_Bool, hbv_state_2_Bool, hbv_state_5_Bool, hbv_state_9_Bool, hbv_state_12_Bool; [L0] assume (((((((((((!((hhv_state_1_Bool || hhv_state_9_Bool) && (!hhv_state_1_Bool || !hhv_state_9_Bool)) && !((!hhv_state_2_Bool || !hhv_state_12_Bool) && (hhv_state_2_Bool || hhv_state_12_Bool))) && !(!hhv_state_5_Bool && hhv_state_4_Bool)) && !((!hhv_state_11_Bool || !hhv_state_3_Bool) && (hhv_state_11_Bool || hhv_state_3_Bool))) && !((!hhv_state_2_Bool || !hhv_state_3_Bool) && (hhv_state_2_Bool || hhv_state_3_Bool))) && !(hhv_state_7_Bool && hhv_state_6_Bool)) && !((hhv_state_0_Bool || hhv_state_12_Bool) && (!hhv_state_12_Bool || !hhv_state_0_Bool))) && !(((((hhv_state_11_Bool || hhv_state_9_Bool) && (!hhv_state_11_Bool || !hhv_state_9_Bool)) || !hhv_state_8_Bool) && (!hhv_state_4_Bool || !hhv_state_7_Bool)) && (((hhv_state_11_Bool && hhv_state_9_Bool) || (!hhv_state_11_Bool && !hhv_state_9_Bool)) || hhv_state_8_Bool))) && !(hhv_state_7_Bool && hhv_state_13_Bool)) && !((hhv_state_7_Bool && hhv_state_4_Bool) && !hhv_state_8_Bool)) && !(((!hhv_state_5_Bool || !hhv_state_6_Bool) && !hhv_state_4_Bool) && (hhv_state_5_Bool || hhv_state_6_Bool))) && !((hhv_state_1_Bool || hhv_state_0_Bool) && (!hhv_state_1_Bool || !hhv_state_0_Bool))) && !((!hhv_state_10_Bool || !hhv_state_8_Bool) && (hhv_state_10_Bool || hhv_state_8_Bool)); [L0] RET call gotoProc(0, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. UNSAFE Result, 4.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s 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, 0.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/switch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_09-50-36-399.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/switch.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_09-50-36-399.csv Received shutdown request...