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/two_counters_e3_325.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 10:26:52,564 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 10:26:52,566 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 10:26:52,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 10:26:52,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 10:26:52,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 10:26:52,585 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 10:26:52,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 10:26:52,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 10:26:52,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 10:26:52,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 10:26:52,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 10:26:52,594 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 10:26:52,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 10:26:52,599 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 10:26:52,600 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 10:26:52,614 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 10:26:52,615 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 10:26:52,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 10:26:52,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 10:26:52,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 10:26:52,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 10:26:52,625 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 10:26:52,625 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 10:26:52,626 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 10:26:52,627 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 10:26:52,628 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 10:26:52,630 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 10:26:52,631 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 10:26:52,631 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 10:26:52,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 10:26:52,633 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 10:26:52,640 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 10:26:52,641 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 10:26:52,642 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 10:26:52,642 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 10:26:52,661 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 10:26:52,662 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 10:26:52,664 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 10:26:52,664 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 10:26:52,666 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 10:26:52,666 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 10:26:52,666 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 10:26:52,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 10:26:52,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 10:26:52,667 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 10:26:52,667 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 10:26:52,667 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 10:26:52,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 10:26:52,667 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 10:26:52,668 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 10:26:52,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 10:26:52,669 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 10:26:52,670 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 10:26:52,670 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 10:26:52,725 INFO ]: Repository-Root is: /tmp [2018-06-22 10:26:52,739 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 10:26:52,745 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 10:26:52,746 INFO ]: Initializing SmtParser... [2018-06-22 10:26:52,747 INFO ]: SmtParser initialized [2018-06-22 10:26:52,748 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 [2018-06-22 10:26:52,749 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 10:26:52,844 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 unknown [2018-06-22 10:26:53,003 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/lustre/two_counters_e3_325.smt2 [2018-06-22 10:26:53,008 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 10:26:53,016 INFO ]: Walking toolchain with 4 elements. [2018-06-22 10:26:53,017 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 10:26:53,017 INFO ]: Initializing ChcToBoogie... [2018-06-22 10:26:53,017 INFO ]: ChcToBoogie initialized [2018-06-22 10:26:53,021 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,078 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53 Unit [2018-06-22 10:26:53,078 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 10:26:53,079 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 10:26:53,079 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 10:26:53,079 INFO ]: Boogie Preprocessor initialized [2018-06-22 10:26:53,101 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,101 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,109 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,109 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,113 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,115 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,117 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (1/1) ... [2018-06-22 10:26:53,124 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 10:26:53,125 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 10:26:53,125 INFO ]: Initializing RCFGBuilder... [2018-06-22 10:26:53,125 INFO ]: RCFGBuilder initialized [2018-06-22 10:26:53,126 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (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 10:26:53,144 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 10:26:53,144 INFO ]: Found specification of procedure gotoProc [2018-06-22 10:26:53,144 INFO ]: Found implementation of procedure gotoProc [2018-06-22 10:26:53,144 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 10:26:53,144 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 10:26:53,144 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 10:26:53,408 INFO ]: Using library mode [2018-06-22 10:26:53,408 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:26:53 BoogieIcfgContainer [2018-06-22 10:26:53,408 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 10:26:53,410 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 10:26:53,410 INFO ]: Initializing TraceAbstraction... [2018-06-22 10:26:53,413 INFO ]: TraceAbstraction initialized [2018-06-22 10:26:53,414 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 10:26:53" (1/3) ... [2018-06-22 10:26:53,415 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d84c215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 10:26:53, skipping insertion in model container [2018-06-22 10:26:53,415 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 10:26:53" (2/3) ... [2018-06-22 10:26:53,415 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d84c215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 10:26:53, skipping insertion in model container [2018-06-22 10:26:53,415 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 10:26:53" (3/3) ... [2018-06-22 10:26:53,417 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 10:26:53,427 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 10:26:53,437 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 10:26:53,480 INFO ]: Using default assertion order modulation [2018-06-22 10:26:53,481 INFO ]: Interprodecural is true [2018-06-22 10:26:53,481 INFO ]: Hoare is false [2018-06-22 10:26:53,481 INFO ]: Compute interpolants for FPandBP [2018-06-22 10:26:53,481 INFO ]: Backedges is TWOTRACK [2018-06-22 10:26:53,481 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 10:26:53,481 INFO ]: Difference is false [2018-06-22 10:26:53,481 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 10:26:53,481 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 10:26:53,496 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 10:26:53,511 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 10:26:53,511 INFO ]: Found error trace [2018-06-22 10:26:53,513 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:26:53,513 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:26:53,517 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-22 10:26:53,519 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:26:53,519 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:26:53,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:53,555 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:26:53,555 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:53,623 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:26:53,765 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:26:53,767 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 10:26:53,767 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 10:26:53,769 INFO ]: Interpolant automaton has 3 states [2018-06-22 10:26:53,781 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 10:26:53,782 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 10:26:53,784 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 10:26:53,862 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:26:53,862 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 10:26:53,863 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 10:26:53,864 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 10:26:53,864 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:26:53,871 INFO ]: With dead ends: 9 [2018-06-22 10:26:53,871 INFO ]: Without dead ends: 9 [2018-06-22 10:26:53,874 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 10:26:53,889 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 10:26:53,903 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 10:26:53,904 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 10:26:53,904 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 10:26:53,905 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 10:26:53,905 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:26:53,905 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 10:26:53,905 INFO ]: Interpolant automaton has 3 states. [2018-06-22 10:26:53,905 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 10:26:53,906 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 10:26:53,906 INFO ]: Found error trace [2018-06-22 10:26:53,906 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:26:53,906 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:26:53,906 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-22 10:26:53,906 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:26:53,906 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:26:53,907 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:53,907 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:26:53,907 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:53,934 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:26:54,372 WARN ]: Spent 357.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-06-22 10:26:54,439 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:26:54,439 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 10:26:54,439 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 10:26:54,451 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:26:54,501 INFO ]: Conjunction of SSA is unsat [2018-06-22 10:26:54,512 INFO ]: Computing forward predicates... [2018-06-22 10:26:54,980 WARN ]: Spent 130.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 5 [2018-06-22 10:26:54,997 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 10:26:55,033 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 10:26:55,033 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 10:26:55,034 INFO ]: Interpolant automaton has 6 states [2018-06-22 10:26:55,034 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 10:26:55,034 INFO ]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-06-22 10:26:55,034 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 10:26:55,139 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 10:26:55,139 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 10:26:55,139 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 10:26:55,139 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 10:26:55,140 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 10:26:55,140 INFO ]: With dead ends: 10 [2018-06-22 10:26:55,140 INFO ]: Without dead ends: 10 [2018-06-22 10:26:55,141 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-22 10:26:55,141 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 10:26:55,142 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 10:26:55,142 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 10:26:55,142 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 10:26:55,142 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 10:26:55,143 INFO ]: Finished accepts. word is rejected. [2018-06-22 10:26:55,143 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 10:26:55,143 INFO ]: Interpolant automaton has 6 states. [2018-06-22 10:26:55,143 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 10:26:55,143 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 10:26:55,143 INFO ]: Found error trace [2018-06-22 10:26:55,143 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 10:26:55,143 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 10:26:55,143 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-22 10:26:55,143 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 10:26:55,143 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 10:26:55,144 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:55,144 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 10:26:55,144 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 10:26:55,186 INFO ]: Conjunction of SSA is sat [2018-06-22 10:26:55,191 INFO ]: Counterexample might be feasible [2018-06-22 10:26:55,214 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 10:26:55 BoogieIcfgContainer [2018-06-22 10:26:55,214 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 10:26:55,215 INFO ]: Toolchain (without parser) took 2205.98 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 191.2 MB in the end (delta: 68.3 MB). Peak memory consumption was 68.3 MB. Max. memory is 3.6 GB. [2018-06-22 10:26:55,216 INFO ]: SmtParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 10:26:55,216 INFO ]: ChcToBoogie took 61.61 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 257.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:26:55,217 INFO ]: Boogie Preprocessor took 45.46 ms. Allocated memory is still 305.1 MB. Free memory was 257.5 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:26:55,217 INFO ]: RCFGBuilder took 283.59 ms. Allocated memory is still 305.1 MB. Free memory was 255.6 MB in the beginning and 245.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. [2018-06-22 10:26:55,218 INFO ]: TraceAbstraction took 1804.35 ms. Allocated memory is still 305.1 MB. Free memory was 243.6 MB in the beginning and 191.2 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 3.6 GB. [2018-06-22 10:26:55,222 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.12 ms. Allocated memory is still 305.1 MB. Free memory is still 269.6 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 61.61 ms. Allocated memory is still 305.1 MB. Free memory was 259.5 MB in the beginning and 257.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 45.46 ms. Allocated memory is still 305.1 MB. Free memory was 257.5 MB in the beginning and 255.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 283.59 ms. Allocated memory is still 305.1 MB. Free memory was 255.6 MB in the beginning and 245.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 1804.35 ms. Allocated memory is still 305.1 MB. Free memory was 243.6 MB in the beginning and 191.2 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 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, 0, false, false, 0, false, false, false, false, false, false, false, false, 0); [L0] gotoSwitch := gotoSwitch_in; [L0] assume !hbv_False_1_Bool; [L0] hhv_state_0_Int, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Int, 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_Int := hbv_False_2_Int, hbv_False_3_Bool, hbv_False_4_Bool, hbv_False_5_Int, 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_Int; [L0] havoc hbv_False_7_Bool, hbv_False_3_Bool, hbv_False_12_Bool, hbv_False_13_Int, hbv_False_2_Int, hbv_False_10_Bool, hbv_False_1_Bool, hbv_False_5_Int, hbv_False_4_Bool, hbv_False_9_Bool, hbv_False_6_Bool, hbv_False_11_Bool, hbv_False_8_Bool; [L0] assume (((((((((((((((((((!(((!hhv_state_7_Bool || !hhv_state_5_Bool) || !hhv_state_6_Bool) && ((hhv_state_6_Bool && hhv_state_5_Bool) || hhv_state_7_Bool)) && !((hbv_state_9_Bool || hbv_state_10_Bool) && (!hbv_state_9_Bool || !hbv_state_10_Bool))) && !((hhv_state_6_Bool || hhv_state_2_Bool) && (!hhv_state_6_Bool || !hhv_state_2_Bool))) && !((hbv_state_4_Bool || hbv_state_3_Bool) && (!hbv_state_3_Bool || !hbv_state_4_Bool))) && !((!hbv_state_7_Bool || hhv_state_2_Bool) && (hbv_state_7_Bool || !hhv_state_2_Bool))) && !(((hhv_state_10_Bool || (hhv_state_8_Bool && hhv_state_9_Bool)) || (!hhv_state_8_Bool && !hhv_state_9_Bool)) && (((hhv_state_8_Bool || hhv_state_9_Bool) && (!hhv_state_8_Bool || !hhv_state_9_Bool)) || !hhv_state_10_Bool))) && !((!hbv_state_11_Bool || !hbv_state_5_Bool) && (hbv_state_11_Bool || hbv_state_5_Bool))) && !(!(hbv_state_2_Int == 3) && !(hbv_state_2_Int + -1 * hhv_state_12_Int == 1))) && hhv_state_0_Int == hhv_state_12_Int) && hhv_state_3_Int == hhv_state_0_Int) && !(!(hhv_state_12_Int == 0) && hbv_state_2_Int == 3)) && !((hhv_state_1_Bool || hhv_state_5_Bool) && (!hhv_state_5_Bool || !hhv_state_1_Bool))) && !((!hbv_state_7_Bool || !hbv_state_8_Bool) && (hbv_state_8_Bool || hbv_state_7_Bool))) && !((hhv_state_9_Bool || hhv_state_7_Bool) && (!hhv_state_7_Bool || !hhv_state_9_Bool))) && !((!hbv_state_9_Bool || !hhv_state_1_Bool) && (hbv_state_9_Bool || hhv_state_1_Bool))) && !((!hhv_state_8_Bool || !hhv_state_4_Bool) && (hhv_state_8_Bool || hhv_state_4_Bool))) && !((hhv_state_3_Int == 2 || hhv_state_4_Bool) && (!(hhv_state_3_Int == 2) || !hhv_state_4_Bool))) && hbv_state_1_Int == hbv_state_2_Int) && !((((hbv_state_4_Bool || hbv_state_5_Bool) && (!hbv_state_4_Bool || !hbv_state_5_Bool)) || !hbv_state_6_Bool) && ((hbv_state_6_Bool || (hbv_state_4_Bool && hbv_state_5_Bool)) || (!hbv_state_4_Bool && !hbv_state_5_Bool)))) && !(((!hbv_state_9_Bool || !hbv_state_11_Bool) || !hbv_state_7_Bool) && ((hbv_state_9_Bool && hbv_state_7_Bool) || hbv_state_11_Bool))) && !((hbv_state_3_Bool || hbv_state_2_Int == 2) && (!hbv_state_3_Bool || !(hbv_state_2_Int == 2))); [L0] hhv_state_0_Int, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Int, 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_Int := hbv_state_1_Int, hbv_state_8_Bool, hbv_state_10_Bool, hbv_state_2_Int, hbv_state_3_Bool, hbv_state_7_Bool, hbv_state_9_Bool, hbv_state_11_Bool, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_6_Bool, hbv_state_12_Bool, hbv_state_13_Int; [L0] havoc hbv_state_2_Int, hbv_state_4_Bool, hbv_state_12_Bool, hbv_state_9_Bool, hbv_state_11_Bool, hbv_state_13_Int, hbv_state_8_Bool, hbv_state_1_Int, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_5_Bool, hbv_state_10_Bool, hbv_state_7_Bool; [L0] assume (((((((((((((((((((!(((!hhv_state_7_Bool || !hhv_state_5_Bool) || !hhv_state_6_Bool) && ((hhv_state_6_Bool && hhv_state_5_Bool) || hhv_state_7_Bool)) && !((hbv_state_9_Bool || hbv_state_10_Bool) && (!hbv_state_9_Bool || !hbv_state_10_Bool))) && !((hhv_state_6_Bool || hhv_state_2_Bool) && (!hhv_state_6_Bool || !hhv_state_2_Bool))) && !((hbv_state_4_Bool || hbv_state_3_Bool) && (!hbv_state_3_Bool || !hbv_state_4_Bool))) && !((!hbv_state_7_Bool || hhv_state_2_Bool) && (hbv_state_7_Bool || !hhv_state_2_Bool))) && !(((hhv_state_10_Bool || (hhv_state_8_Bool && hhv_state_9_Bool)) || (!hhv_state_8_Bool && !hhv_state_9_Bool)) && (((hhv_state_8_Bool || hhv_state_9_Bool) && (!hhv_state_8_Bool || !hhv_state_9_Bool)) || !hhv_state_10_Bool))) && !((!hbv_state_11_Bool || !hbv_state_5_Bool) && (hbv_state_11_Bool || hbv_state_5_Bool))) && !(!(hbv_state_2_Int == 3) && !(hbv_state_2_Int + -1 * hhv_state_12_Int == 1))) && hhv_state_0_Int == hhv_state_12_Int) && hhv_state_3_Int == hhv_state_0_Int) && !(!(hhv_state_12_Int == 0) && hbv_state_2_Int == 3)) && !((hhv_state_1_Bool || hhv_state_5_Bool) && (!hhv_state_5_Bool || !hhv_state_1_Bool))) && !((!hbv_state_7_Bool || !hbv_state_8_Bool) && (hbv_state_8_Bool || hbv_state_7_Bool))) && !((hhv_state_9_Bool || hhv_state_7_Bool) && (!hhv_state_7_Bool || !hhv_state_9_Bool))) && !((!hbv_state_9_Bool || !hhv_state_1_Bool) && (hbv_state_9_Bool || hhv_state_1_Bool))) && !((!hhv_state_8_Bool || !hhv_state_4_Bool) && (hhv_state_8_Bool || hhv_state_4_Bool))) && !((hhv_state_3_Int == 2 || hhv_state_4_Bool) && (!(hhv_state_3_Int == 2) || !hhv_state_4_Bool))) && hbv_state_1_Int == hbv_state_2_Int) && !((((hbv_state_4_Bool || hbv_state_5_Bool) && (!hbv_state_4_Bool || !hbv_state_5_Bool)) || !hbv_state_6_Bool) && ((hbv_state_6_Bool || (hbv_state_4_Bool && hbv_state_5_Bool)) || (!hbv_state_4_Bool && !hbv_state_5_Bool)))) && !(((!hbv_state_9_Bool || !hbv_state_11_Bool) || !hbv_state_7_Bool) && ((hbv_state_9_Bool && hbv_state_7_Bool) || hbv_state_11_Bool))) && !((hbv_state_3_Bool || hbv_state_2_Int == 2) && (!hbv_state_3_Bool || !(hbv_state_2_Int == 2))); [L0] hhv_state_0_Int, hhv_state_1_Bool, hhv_state_2_Bool, hhv_state_3_Int, 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_Int := hbv_state_1_Int, hbv_state_8_Bool, hbv_state_10_Bool, hbv_state_2_Int, hbv_state_3_Bool, hbv_state_7_Bool, hbv_state_9_Bool, hbv_state_11_Bool, hbv_state_4_Bool, hbv_state_5_Bool, hbv_state_6_Bool, hbv_state_12_Bool, hbv_state_13_Int; [L0] havoc hbv_state_2_Int, hbv_state_4_Bool, hbv_state_12_Bool, hbv_state_9_Bool, hbv_state_11_Bool, hbv_state_13_Int, hbv_state_8_Bool, hbv_state_1_Int, hbv_state_3_Bool, hbv_state_6_Bool, hbv_state_5_Bool, hbv_state_10_Bool, hbv_state_7_Bool; [L0] assume (((((((((!hhv_state_2_Bool && !((((hhv_state_8_Bool || hhv_state_9_Bool) && (!hhv_state_8_Bool || !hhv_state_9_Bool)) || !hhv_state_10_Bool) && ((hhv_state_10_Bool || (hhv_state_8_Bool && hhv_state_9_Bool)) || (!hhv_state_8_Bool && !hhv_state_9_Bool)))) && !((!hhv_state_7_Bool || !hhv_state_9_Bool) && (hhv_state_7_Bool || hhv_state_9_Bool))) && !(((!hhv_state_6_Bool || !hhv_state_7_Bool) || !hhv_state_5_Bool) && ((hhv_state_6_Bool && hhv_state_5_Bool) || hhv_state_7_Bool))) && !hhv_state_1_Bool) && !((hhv_state_6_Bool || hhv_state_2_Bool) && (!hhv_state_6_Bool || !hhv_state_2_Bool))) && hhv_state_0_Int == hhv_state_3_Int) && !((hhv_state_4_Bool || hhv_state_3_Int == 2) && (!hhv_state_4_Bool || !(hhv_state_3_Int == 2)))) && hhv_state_0_Int == 0) && !((hhv_state_8_Bool || hhv_state_4_Bool) && (!hhv_state_4_Bool || !hhv_state_8_Bool))) && !((!hhv_state_5_Bool || !hhv_state_1_Bool) && (hhv_state_1_Bool || hhv_state_5_Bool)); [L0] RET call gotoProc(0, 0, false, false, 0, false, false, false, false, false, false, false, false, 0); [L0] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s 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, 0.7s 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, 1.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 3 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 19 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/two_counters_e3_325.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_10-26-55-236.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/two_counters_e3_325.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_10-26-55-236.csv Received shutdown request...