java -Xss4m -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/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 10:34:15,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 10:34:15,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 10:34:15,736 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 10:34:15,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 10:34:15,737 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 10:34:15,741 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 10:34:15,744 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 10:34:15,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 10:34:15,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 10:34:15,747 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 10:34:15,750 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 10:34:15,751 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 10:34:15,752 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 10:34:15,756 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 10:34:15,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 10:34:15,758 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 10:34:15,771 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 10:34:15,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 10:34:15,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 10:34:15,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 10:34:15,781 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 10:34:15,782 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 10:34:15,782 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 10:34:15,783 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 10:34:15,784 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 10:34:15,784 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 10:34:15,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 10:34:15,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 10:34:15,786 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 10:34:15,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 10:34:15,787 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 10:34:15,787 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 10:34:15,792 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 10:34:15,793 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 10:34:15,793 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 10:34:15,811 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 10:34:15,811 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 10:34:15,812 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 10:34:15,812 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 10:34:15,813 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 10:34:15,813 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 10:34:15,813 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 10:34:15,814 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 10:34:15,814 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 10:34:15,814 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 10:34:15,814 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 10:34:15,814 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 10:34:15,815 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 10:34:15,815 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 10:34:15,815 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 10:34:15,815 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 10:34:15,815 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 10:34:15,815 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 10:34:15,816 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 10:34:15,816 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 10:34:15,816 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 10:34:15,817 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 10:34:15,818 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 10:34:15,880 INFO ]: Repository-Root is: /tmp [2018-06-25 10:34:15,898 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 10:34:15,904 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 10:34:15,906 INFO ]: Initializing SmtParser... [2018-06-25 10:34:15,906 INFO ]: SmtParser initialized [2018-06-25 10:34:15,907 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 [2018-06-25 10:34:15,908 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 [2018-06-25 10:34:15,996 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 unknown [2018-06-25 10:34:16,363 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/oral_messages/om1_with_relays_agreement.smt2 [2018-06-25 10:34:16,377 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 10:34:16,384 INFO ]: Walking toolchain with 4 elements. [2018-06-25 10:34:16,385 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 10:34:16,385 INFO ]: Initializing ChcToBoogie... [2018-06-25 10:34:16,385 INFO ]: ChcToBoogie initialized [2018-06-25 10:34:16,388 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,479 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16 Unit [2018-06-25 10:34:16,479 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 10:34:16,479 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 10:34:16,479 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 10:34:16,479 INFO ]: Boogie Preprocessor initialized [2018-06-25 10:34:16,514 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,514 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,536 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,536 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,543 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,554 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,556 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (1/1) ... [2018-06-25 10:34:16,559 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 10:34:16,560 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 10:34:16,560 INFO ]: Initializing RCFGBuilder... [2018-06-25 10:34:16,560 INFO ]: RCFGBuilder initialized [2018-06-25 10:34:16,561 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (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) [2018-06-25 10:34:16,579 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 10:34:16,579 INFO ]: Found specification of procedure gotoProc [2018-06-25 10:34:16,579 INFO ]: Found implementation of procedure gotoProc [2018-06-25 10:34:16,579 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 10:34:16,579 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 10:34:16,579 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 [2018-06-25 10:34:16,918 INFO ]: Using library mode [2018-06-25 10:34:16,918 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:34:16 BoogieIcfgContainer [2018-06-25 10:34:16,918 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 10:34:16,920 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 10:34:16,920 INFO ]: Initializing TraceAbstraction... [2018-06-25 10:34:16,923 INFO ]: TraceAbstraction initialized [2018-06-25 10:34:16,923 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:34:16" (1/3) ... [2018-06-25 10:34:16,924 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5ed0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 10:34:16, skipping insertion in model container [2018-06-25 10:34:16,924 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:34:16" (2/3) ... [2018-06-25 10:34:16,924 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5ed0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 10:34:16, skipping insertion in model container [2018-06-25 10:34:16,925 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:34:16" (3/3) ... [2018-06-25 10:34:16,926 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 10:34:16,936 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 10:34:16,947 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 10:34:16,990 INFO ]: Using default assertion order modulation [2018-06-25 10:34:16,991 INFO ]: Interprodecural is true [2018-06-25 10:34:16,991 INFO ]: Hoare is false [2018-06-25 10:34:16,991 INFO ]: Compute interpolants for FPandBP [2018-06-25 10:34:16,991 INFO ]: Backedges is TWOTRACK [2018-06-25 10:34:16,991 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 10:34:16,991 INFO ]: Difference is false [2018-06-25 10:34:16,991 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 10:34:16,991 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 10:34:17,003 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 10:34:17,012 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 10:34:17,012 INFO ]: Found error trace [2018-06-25 10:34:17,013 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:34:17,014 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:34:17,019 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 10:34:17,021 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:34:17,021 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:34:17,059 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:17,059 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:34:17,060 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:17,162 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:34:17,270 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:34:17,271 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 10:34:17,271 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 10:34:17,273 INFO ]: Interpolant automaton has 3 states [2018-06-25 10:34:17,283 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 10:34:17,283 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:34:17,285 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 10:34:17,351 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:34:17,351 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 10:34:17,351 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 10:34:17,352 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 10:34:17,352 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:34:17,360 INFO ]: With dead ends: 9 [2018-06-25 10:34:17,360 INFO ]: Without dead ends: 9 [2018-06-25 10:34:17,363 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 [2018-06-25 10:34:17,375 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 10:34:17,391 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 10:34:17,392 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 10:34:17,392 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 10:34:17,394 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 10:34:17,394 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:34:17,394 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 10:34:17,394 INFO ]: Interpolant automaton has 3 states. [2018-06-25 10:34:17,394 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 10:34:17,394 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 10:34:17,394 INFO ]: Found error trace [2018-06-25 10:34:17,394 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:34:17,394 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:34:17,395 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 10:34:17,395 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:34:17,395 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:34:17,395 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:17,395 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:34:17,396 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:17,499 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:34:17,684 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:34:17,684 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:34:17,684 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 [2018-06-25 10:34:17,700 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:34:17,864 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:34:17,877 INFO ]: Computing forward predicates... [2018-06-25 10:34:18,645 WARN ]: Spent 167.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-06-25 10:34:18,647 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:34:18,668 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:34:18,668 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-25 10:34:18,668 INFO ]: Interpolant automaton has 6 states [2018-06-25 10:34:18,669 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-25 10:34:18,669 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 10:34:18,669 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-25 10:34:18,750 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:34:18,750 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 10:34:18,752 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 10:34:18,752 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-25 10:34:18,752 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:34:18,752 INFO ]: With dead ends: 11 [2018-06-25 10:34:18,753 INFO ]: Without dead ends: 11 [2018-06-25 10:34:18,753 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-25 10:34:18,753 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 10:34:18,755 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 10:34:18,755 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 10:34:18,755 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 10:34:18,755 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-25 10:34:18,755 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:34:18,755 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 10:34:18,755 INFO ]: Interpolant automaton has 6 states. [2018-06-25 10:34:18,755 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 10:34:18,755 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 10:34:18,756 INFO ]: Found error trace [2018-06-25 10:34:18,756 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:34:18,756 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:34:18,756 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 2 times [2018-06-25 10:34:18,756 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:34:18,756 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:34:18,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:18,758 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:34:18,758 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:34:18,917 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:34:20,079 WARN ]: Spent 803.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-06-25 10:34:20,756 WARN ]: Spent 594.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 92 [2018-06-25 10:34:20,917 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:34:20,917 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:34:20,917 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 10:34:20,923 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-25 10:34:21,060 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 10:34:21,061 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:34:21,072 INFO ]: Computing forward predicates... [2018-06-25 10:34:29,475 WARN ]: Simplifying disjunction of 13608 conjuctions. This might take some time... [2018-06-25 10:34:43,595 INFO ]: Simplified to disjunction of 13608 conjuctions. [2018-06-25 10:34:43,785 WARN ]: Simplifying disjunction of 12523 conjuctions. This might take some time... [2018-06-25 10:34:53,322 INFO ]: Simplified to disjunction of 12523 conjuctions. [2018-06-25 10:34:53,416 WARN ]: Simplifying disjunction of 13005 conjuctions. This might take some time... [2018-06-25 10:35:03,895 INFO ]: Simplified to disjunction of 13005 conjuctions. [2018-06-25 10:35:04,008 WARN ]: Simplifying disjunction of 13513 conjuctions. This might take some time... [2018-06-25 10:35:15,454 INFO ]: Simplified to disjunction of 13513 conjuctions. [2018-06-25 10:35:15,621 WARN ]: Simplifying disjunction of 13230 conjuctions. This might take some time... [2018-06-25 10:35:28,194 INFO ]: Simplified to disjunction of 13230 conjuctions. [2018-06-25 10:35:28,281 WARN ]: Simplifying disjunction of 11439 conjuctions. This might take some time... Received shutdown request... [2018-06-25 10:35:28,314 INFO ]: Timeout while computing interpolants [2018-06-25 10:35:28,514 WARN ]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 10:35:28,514 WARN ]: Verification canceled [2018-06-25 10:35:28,518 WARN ]: Timeout [2018-06-25 10:35:28,519 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 10:35:28 BoogieIcfgContainer [2018-06-25 10:35:28,519 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 10:35:28,520 INFO ]: Toolchain (without parser) took 72142.43 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 256.8 MB in the beginning and 445.6 MB in the end (delta: -188.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 10:35:28,520 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 10:35:28,521 INFO ]: ChcToBoogie took 94.33 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 252.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:35:28,521 INFO ]: Boogie Preprocessor took 80.04 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 250.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:35:28,522 INFO ]: RCFGBuilder took 358.51 ms. Allocated memory is still 308.3 MB. Free memory was 250.8 MB in the beginning and 228.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:35:28,522 INFO ]: TraceAbstraction took 71598.83 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.9 MB in the beginning and 445.6 MB in the end (delta: -216.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-25 10:35:28,531 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 272.9 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 94.33 ms. Allocated memory is still 308.3 MB. Free memory was 254.8 MB in the beginning and 252.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 80.04 ms. Allocated memory is still 308.3 MB. Free memory was 252.8 MB in the beginning and 250.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 358.51 ms. Allocated memory is still 308.3 MB. Free memory was 250.8 MB in the beginning and 228.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 71598.83 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 228.9 MB in the beginning and 445.6 MB in the end (delta: -216.7 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 11 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while DnfTransformerHelper was XNF transformer was simplifying 11439 conjuctions. . - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 71.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 20 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 1 NumberOfNonLiveVariables, 352 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_10-35-28-554.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/om1_with_relays_agreement.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_10-35-28-554.csv Completed graceful shutdown