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_No_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 13:16:28,537 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 13:16:28,539 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 13:16:28,553 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 13:16:28,553 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 13:16:28,555 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 13:16:28,556 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 13:16:28,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 13:16:28,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 13:16:28,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 13:16:28,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 13:16:28,563 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 13:16:28,564 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 13:16:28,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 13:16:28,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 13:16:28,566 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 13:16:28,570 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 13:16:28,572 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 13:16:28,582 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 13:16:28,583 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 13:16:28,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 13:16:28,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 13:16:28,588 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 13:16:28,588 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 13:16:28,589 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 13:16:28,590 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 13:16:28,590 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 13:16:28,591 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 13:16:28,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 13:16:28,592 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 13:16:28,593 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 13:16:28,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 13:16:28,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 13:16:28,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 13:16:28,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 13:16:28,599 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_No_Goto.epf [2018-06-22 13:16:28,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 13:16:28,617 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 13:16:28,617 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 13:16:28,617 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 13:16:28,618 INFO L131 SettingsManager]: Preferences of ChcToBoogie differ from their defaults: [2018-06-22 13:16:28,618 INFO L133 SettingsManager]: * Use one large procedure with gotos to replace tail recursive calls=false [2018-06-22 13:16:28,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 13:16:28,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 13:16:28,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 13:16:28,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 13:16:28,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 13:16:28,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 13:16:28,620 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 13:16:28,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 13:16:28,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 13:16:28,620 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 13:16:28,621 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 13:16:28,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 13:16:28,622 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 13:16:28,623 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 13:16:28,623 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 13:16:28,661 INFO ]: Repository-Root is: /tmp [2018-06-22 13:16:28,677 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 13:16:28,684 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 13:16:28,686 INFO ]: Initializing SmtParser... [2018-06-22 13:16:28,686 INFO ]: SmtParser initialized [2018-06-22 13:16:28,687 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 [2018-06-22 13:16:28,688 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 13:16:28,777 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 unknown [2018-06-22 13:16:29,137 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_general_4_4_validity.smt2 [2018-06-22 13:16:29,141 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 13:16:29,148 INFO ]: Walking toolchain with 4 elements. [2018-06-22 13:16:29,149 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 13:16:29,149 INFO ]: Initializing ChcToBoogie... [2018-06-22 13:16:29,149 INFO ]: ChcToBoogie initialized [2018-06-22 13:16:29,152 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,207 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29 Unit [2018-06-22 13:16:29,207 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 13:16:29,208 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 13:16:29,208 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 13:16:29,208 INFO ]: Boogie Preprocessor initialized [2018-06-22 13:16:29,227 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,228 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,241 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,241 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,259 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,260 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,262 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (1/1) ... [2018-06-22 13:16:29,274 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 13:16:29,275 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 13:16:29,275 INFO ]: Initializing RCFGBuilder... [2018-06-22 13:16:29,275 INFO ]: RCFGBuilder initialized [2018-06-22 13:16:29,275 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (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 13:16:29,283 INFO ]: Specification and implementation of procedure False given in one single declaration [2018-06-22 13:16:29,284 INFO ]: Found specification of procedure False [2018-06-22 13:16:29,284 INFO ]: Found implementation of procedure False [2018-06-22 13:16:29,284 INFO ]: Specification and implementation of procedure invariant given in one single declaration [2018-06-22 13:16:29,284 INFO ]: Found specification of procedure invariant [2018-06-22 13:16:29,284 INFO ]: Found implementation of procedure invariant [2018-06-22 13:16:29,284 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 13:16:29,284 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 13:16:29,284 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 13:16:29,668 INFO ]: Using library mode [2018-06-22 13:16:29,668 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:16:29 BoogieIcfgContainer [2018-06-22 13:16:29,669 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 13:16:29,670 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 13:16:29,670 INFO ]: Initializing TraceAbstraction... [2018-06-22 13:16:29,673 INFO ]: TraceAbstraction initialized [2018-06-22 13:16:29,673 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 01:16:29" (1/3) ... [2018-06-22 13:16:29,674 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f1f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 01:16:29, skipping insertion in model container [2018-06-22 13:16:29,674 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 01:16:29" (2/3) ... [2018-06-22 13:16:29,674 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419f1f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:16:29, skipping insertion in model container [2018-06-22 13:16:29,674 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:16:29" (3/3) ... [2018-06-22 13:16:29,676 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 13:16:29,685 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 13:16:29,694 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 13:16:29,746 INFO ]: Using default assertion order modulation [2018-06-22 13:16:29,747 INFO ]: Interprodecural is true [2018-06-22 13:16:29,747 INFO ]: Hoare is false [2018-06-22 13:16:29,747 INFO ]: Compute interpolants for FPandBP [2018-06-22 13:16:29,747 INFO ]: Backedges is TWOTRACK [2018-06-22 13:16:29,747 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 13:16:29,747 INFO ]: Difference is false [2018-06-22 13:16:29,747 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 13:16:29,747 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 13:16:29,766 INFO ]: Start isEmpty. Operand 13 states. [2018-06-22 13:16:29,780 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 13:16:29,781 INFO ]: Found error trace [2018-06-22 13:16:29,782 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:29,782 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:29,789 INFO ]: Analyzing trace with hash -683425083, now seen corresponding path program 1 times [2018-06-22 13:16:29,791 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:29,791 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:29,846 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:29,846 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:29,846 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:29,913 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:30,077 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 13:16:30,079 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 13:16:30,079 INFO ]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-06-22 13:16:30,081 INFO ]: Interpolant automaton has 4 states [2018-06-22 13:16:30,092 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 13:16:30,092 INFO ]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:16:30,094 INFO ]: Start difference. First operand 13 states. Second operand 4 states. [2018-06-22 13:16:30,199 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:16:30,199 INFO ]: Finished difference Result 13 states and 14 transitions. [2018-06-22 13:16:30,202 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 13:16:30,203 INFO ]: Start accepts. Automaton has 4 states. Word has length 9 [2018-06-22 13:16:30,203 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:16:30,218 INFO ]: With dead ends: 13 [2018-06-22 13:16:30,218 INFO ]: Without dead ends: 13 [2018-06-22 13:16:30,220 INFO ]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-06-22 13:16:30,238 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 13:16:30,270 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 13:16:30,271 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 13:16:30,272 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-06-22 13:16:30,273 INFO ]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2018-06-22 13:16:30,273 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:16:30,273 INFO ]: Abstraction has 13 states and 14 transitions. [2018-06-22 13:16:30,273 INFO ]: Interpolant automaton has 4 states. [2018-06-22 13:16:30,273 INFO ]: Start isEmpty. Operand 13 states and 14 transitions. [2018-06-22 13:16:30,274 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 13:16:30,274 INFO ]: Found error trace [2018-06-22 13:16:30,274 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:30,274 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:30,274 INFO ]: Analyzing trace with hash 204343015, now seen corresponding path program 1 times [2018-06-22 13:16:30,274 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:30,274 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:30,275 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:30,275 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:30,275 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:30,397 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:30,701 WARN ]: Spent 150.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 6 [2018-06-22 13:16:30,744 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:16:30,744 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:16:30,744 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 13:16:30,757 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:30,888 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:30,899 INFO ]: Computing forward predicates... [2018-06-22 13:16:32,103 WARN ]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-06-22 13:16:32,332 INFO ]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-22 13:16:32,366 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 13:16:32,366 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 13:16:32,367 INFO ]: Interpolant automaton has 9 states [2018-06-22 13:16:32,367 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 13:16:32,367 INFO ]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-06-22 13:16:32,367 INFO ]: Start difference. First operand 13 states and 14 transitions. Second operand 9 states. [2018-06-22 13:16:32,992 WARN ]: Spent 319.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2018-06-22 13:16:33,038 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 13:16:33,038 INFO ]: Finished difference Result 17 states and 18 transitions. [2018-06-22 13:16:33,040 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 13:16:33,040 INFO ]: Start accepts. Automaton has 9 states. Word has length 13 [2018-06-22 13:16:33,040 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 13:16:33,041 INFO ]: With dead ends: 17 [2018-06-22 13:16:33,041 INFO ]: Without dead ends: 17 [2018-06-22 13:16:33,042 INFO ]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-06-22 13:16:33,042 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 13:16:33,044 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 13:16:33,044 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 13:16:33,045 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-06-22 13:16:33,045 INFO ]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2018-06-22 13:16:33,045 INFO ]: Finished accepts. word is rejected. [2018-06-22 13:16:33,045 INFO ]: Abstraction has 17 states and 18 transitions. [2018-06-22 13:16:33,045 INFO ]: Interpolant automaton has 9 states. [2018-06-22 13:16:33,045 INFO ]: Start isEmpty. Operand 17 states and 18 transitions. [2018-06-22 13:16:33,046 INFO ]: Finished isEmpty. Found accepting run of length 22 [2018-06-22 13:16:33,046 INFO ]: Found error trace [2018-06-22 13:16:33,046 INFO ]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 13:16:33,046 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 13:16:33,046 INFO ]: Analyzing trace with hash 2119922091, now seen corresponding path program 2 times [2018-06-22 13:16:33,046 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 13:16:33,046 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 13:16:33,047 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:33,047 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 13:16:33,047 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 13:16:33,418 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:16:35,486 WARN ]: Spent 717.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 18 [2018-06-22 13:16:48,305 WARN ]: Spent 12.20 s on a formula simplification. DAG size of input: 2497 DAG size of output: 175 [2018-06-22 13:16:55,158 WARN ]: Spent 6.71 s on a formula simplification. DAG size of input: 580 DAG size of output: 411 [2018-06-22 13:16:56,710 WARN ]: Spent 1.38 s on a formula simplification. DAG size of input: 434 DAG size of output: 139 [2018-06-22 13:16:56,936 WARN ]: Spent 154.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 39 [2018-06-22 13:16:57,865 WARN ]: Spent 843.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 110 [2018-06-22 13:17:00,247 WARN ]: Spent 2.29 s on a formula simplification. DAG size of input: 265 DAG size of output: 157 [2018-06-22 13:17:00,386 INFO ]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-06-22 13:17:00,386 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 13:17:00,386 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) [2018-06-22 13:17:00,401 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:17:00,532 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 13:17:00,532 INFO ]: Conjunction of SSA is unsat [2018-06-22 13:17:00,548 INFO ]: Computing forward predicates... [2018-06-22 13:17:12,496 WARN ]: Spent 4.66 s on a formula simplification. DAG size of input: 955 DAG size of output: 189 [2018-06-22 13:17:15,432 WARN ]: Spent 2.78 s on a formula simplification. DAG size of input: 781 DAG size of output: 321 [2018-06-22 13:17:17,456 WARN ]: Spent 1.82 s on a formula simplification. DAG size of input: 556 DAG size of output: 251 [2018-06-22 13:17:18,503 WARN ]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 124 Received shutdown request... [2018-06-22 13:17:33,324 INFO ]: Timeout while computing interpolants [2018-06-22 13:17:33,524 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 13:17:33,524 WARN ]: Verification canceled [2018-06-22 13:17:33,529 WARN ]: Timeout [2018-06-22 13:17:33,529 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:17:33 BoogieIcfgContainer [2018-06-22 13:17:33,529 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 13:17:33,530 INFO ]: Toolchain (without parser) took 64388.23 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 255.1 MB in the beginning and 1.2 GB in the end (delta: -899.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:17:33,536 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 13:17:33,536 INFO ]: ChcToBoogie took 58.87 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:33,537 INFO ]: Boogie Preprocessor took 65.95 ms. Allocated memory is still 308.8 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:33,537 INFO ]: RCFGBuilder took 394.04 ms. Allocated memory is still 308.8 MB. Free memory was 251.0 MB in the beginning and 232.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 3.6 GB. [2018-06-22 13:17:33,538 INFO ]: TraceAbstraction took 63859.20 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.8 MB in the beginning and 1.2 GB in the end (delta: -921.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 13:17:33,540 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.09 ms. Allocated memory is still 308.8 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 58.87 ms. Allocated memory is still 308.8 MB. Free memory was 255.1 MB in the beginning and 253.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 65.95 ms. Allocated memory is still 308.8 MB. Free memory was 253.0 MB in the beginning and 251.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 394.04 ms. Allocated memory is still 308.8 MB. Free memory was 251.0 MB in the beginning and 232.8 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 3.6 GB. * TraceAbstraction took 63859.20 ms. Allocated memory was 308.8 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 232.8 MB in the beginning and 1.2 GB in the end (delta: -921.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [UNKNOWN] : Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 0). Cancelled while BasicCegarLoop was analyzing trace of length 22 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 19 quantified variables from 16 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. TIMEOUT Result, 63.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 6 SDslu, 38 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1048 SizeOfPredicates, 92 NumberOfNonLiveVariables, 270 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/6 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/om1_with_relays_general_4_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_13-17-33-564.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_general_4_4_validity.smt2_AutomizerCHC_No_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_13-17-33-564.csv Completed graceful shutdown