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/cav12/s3_srvr_10.cil.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 04:34:17,042 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 04:34:17,044 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 04:34:17,056 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 04:34:17,056 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 04:34:17,057 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 04:34:17,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 04:34:17,063 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 04:34:17,064 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 04:34:17,067 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 04:34:17,068 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 04:34:17,068 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 04:34:17,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 04:34:17,070 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 04:34:17,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 04:34:17,074 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 04:34:17,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 04:34:17,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 04:34:17,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 04:34:17,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 04:34:17,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 04:34:17,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 04:34:17,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 04:34:17,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 04:34:17,095 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 04:34:17,096 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 04:34:17,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 04:34:17,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 04:34:17,103 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 04:34:17,104 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 04:34:17,104 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 04:34:17,105 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 04:34:17,105 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 04:34:17,106 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 04:34:17,106 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 04:34:17,112 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 04:34:17,132 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 04:34:17,132 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 04:34:17,132 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 04:34:17,133 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 04:34:17,134 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 04:34:17,134 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 04:34:17,134 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 04:34:17,134 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 04:34:17,134 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 04:34:17,135 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 04:34:17,135 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 04:34:17,135 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 04:34:17,135 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 04:34:17,135 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 04:34:17,135 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 04:34:17,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 04:34:17,136 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 04:34:17,137 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 04:34:17,137 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 04:34:17,179 INFO ]: Repository-Root is: /tmp [2018-06-22 04:34:17,197 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 04:34:17,202 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 04:34:17,204 INFO ]: Initializing SmtParser... [2018-06-22 04:34:17,204 INFO ]: SmtParser initialized [2018-06-22 04:34:17,205 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_10.cil.smt2 [2018-06-22 04:34:17,206 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 04:34:17,306 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_10.cil.smt2 unknown [2018-06-22 04:34:17,937 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/cav12/s3_srvr_10.cil.smt2 [2018-06-22 04:34:17,942 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 04:34:17,958 INFO ]: Walking toolchain with 4 elements. [2018-06-22 04:34:17,959 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 04:34:17,959 INFO ]: Initializing ChcToBoogie... [2018-06-22 04:34:17,959 INFO ]: ChcToBoogie initialized [2018-06-22 04:34:17,962 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:34:17" (1/1) ... [2018-06-22 04:34:18,090 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18 Unit [2018-06-22 04:34:18,090 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 04:34:18,091 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 04:34:18,091 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 04:34:18,091 INFO ]: Boogie Preprocessor initialized [2018-06-22 04:34:18,113 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,113 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,128 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,128 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,149 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,151 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,155 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (1/1) ... [2018-06-22 04:34:18,166 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 04:34:18,168 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 04:34:18,168 INFO ]: Initializing RCFGBuilder... [2018-06-22 04:34:18,168 INFO ]: RCFGBuilder initialized [2018-06-22 04:34:18,169 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (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 04:34:18,182 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 04:34:18,182 INFO ]: Found specification of procedure gotoProc [2018-06-22 04:34:18,182 INFO ]: Found implementation of procedure gotoProc [2018-06-22 04:34:18,182 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 04:34:18,182 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 04:34:18,182 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 04:34:18,664 INFO ]: Using library mode [2018-06-22 04:34:18,664 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:34:18 BoogieIcfgContainer [2018-06-22 04:34:18,664 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 04:34:18,667 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 04:34:18,667 INFO ]: Initializing TraceAbstraction... [2018-06-22 04:34:18,674 INFO ]: TraceAbstraction initialized [2018-06-22 04:34:18,677 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 04:34:17" (1/3) ... [2018-06-22 04:34:18,678 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48842c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 04:34:18, skipping insertion in model container [2018-06-22 04:34:18,678 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 04:34:18" (2/3) ... [2018-06-22 04:34:18,678 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48842c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:34:18, skipping insertion in model container [2018-06-22 04:34:18,678 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:34:18" (3/3) ... [2018-06-22 04:34:18,680 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 04:34:18,690 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 04:34:18,700 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 04:34:18,742 INFO ]: Using default assertion order modulation [2018-06-22 04:34:18,743 INFO ]: Interprodecural is true [2018-06-22 04:34:18,743 INFO ]: Hoare is false [2018-06-22 04:34:18,743 INFO ]: Compute interpolants for FPandBP [2018-06-22 04:34:18,743 INFO ]: Backedges is TWOTRACK [2018-06-22 04:34:18,743 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 04:34:18,743 INFO ]: Difference is false [2018-06-22 04:34:18,743 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 04:34:18,743 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 04:34:18,759 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 04:34:18,769 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 04:34:18,770 INFO ]: Found error trace [2018-06-22 04:34:18,771 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:18,771 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:18,776 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 04:34:18,778 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:18,779 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:18,815 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:18,815 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:34:18,815 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:18,887 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:19,019 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:19,022 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 04:34:19,022 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 04:34:19,024 INFO ]: Interpolant automaton has 3 states [2018-06-22 04:34:19,041 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 04:34:19,041 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 04:34:19,044 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 04:34:19,133 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:34:19,133 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 04:34:19,134 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 04:34:19,135 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 04:34:19,135 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:34:19,161 INFO ]: With dead ends: 9 [2018-06-22 04:34:19,161 INFO ]: Without dead ends: 9 [2018-06-22 04:34:19,170 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 04:34:19,184 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 04:34:19,198 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 04:34:19,200 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 04:34:19,200 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 04:34:19,202 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 04:34:19,202 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:34:19,202 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 04:34:19,202 INFO ]: Interpolant automaton has 3 states. [2018-06-22 04:34:19,202 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 04:34:19,202 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 04:34:19,202 INFO ]: Found error trace [2018-06-22 04:34:19,202 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:19,202 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:19,205 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 04:34:19,205 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:19,205 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:19,206 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:19,206 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:34:19,206 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:19,348 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:19,659 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:19,660 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:34:19,660 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 04:34:19,675 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:34:19,775 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:19,788 INFO ]: Computing forward predicates... [2018-06-22 04:34:20,521 WARN ]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:34:20,524 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:20,546 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:34:20,546 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2018-06-22 04:34:20,546 INFO ]: Interpolant automaton has 6 states [2018-06-22 04:34:20,546 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 04:34:20,546 INFO ]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:34:20,547 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-06-22 04:34:20,634 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:34:20,634 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 04:34:20,635 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 04:34:20,635 INFO ]: Start accepts. Automaton has 6 states. Word has length 8 [2018-06-22 04:34:20,635 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:34:20,635 INFO ]: With dead ends: 11 [2018-06-22 04:34:20,635 INFO ]: Without dead ends: 11 [2018-06-22 04:34:20,636 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 04:34:20,636 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 04:34:20,637 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 04:34:20,637 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 04:34:20,637 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 04:34:20,638 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-06-22 04:34:20,638 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:34:20,638 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 04:34:20,638 INFO ]: Interpolant automaton has 6 states. [2018-06-22 04:34:20,638 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 04:34:20,638 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 04:34:20,638 INFO ]: Found error trace [2018-06-22 04:34:20,638 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:20,638 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:20,638 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 2 times [2018-06-22 04:34:20,638 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:20,638 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:20,639 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:20,639 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 04:34:20,639 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:20,804 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:21,270 WARN ]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:34:21,344 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:21,344 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:34:21,344 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:34:21,355 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 04:34:21,530 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 04:34:21,531 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:21,548 INFO ]: Computing forward predicates... [2018-06-22 04:34:22,228 WARN ]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:34:23,642 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:23,663 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:34:23,663 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-22 04:34:23,663 INFO ]: Interpolant automaton has 9 states [2018-06-22 04:34:23,663 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-22 04:34:23,663 INFO ]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-06-22 04:34:23,664 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-06-22 04:34:23,724 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:34:23,725 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 04:34:23,725 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 04:34:23,725 INFO ]: Start accepts. Automaton has 9 states. Word has length 10 [2018-06-22 04:34:23,725 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:34:23,725 INFO ]: With dead ends: 12 [2018-06-22 04:34:23,725 INFO ]: Without dead ends: 12 [2018-06-22 04:34:23,726 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-06-22 04:34:23,726 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 04:34:23,727 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 04:34:23,727 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 04:34:23,728 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 04:34:23,728 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 04:34:23,728 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:34:23,728 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 04:34:23,728 INFO ]: Interpolant automaton has 9 states. [2018-06-22 04:34:23,728 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 04:34:23,728 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 04:34:23,728 INFO ]: Found error trace [2018-06-22 04:34:23,728 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:23,728 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:23,729 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 3 times [2018-06-22 04:34:23,729 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:23,729 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:23,729 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:23,729 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:34:23,729 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:23,944 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:24,701 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:24,701 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:34:24,701 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:34:24,708 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 04:34:24,848 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 04:34:24,848 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:24,859 INFO ]: Computing forward predicates... [2018-06-22 04:34:25,303 WARN ]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:34:26,940 WARN ]: Spent 615.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 11 [2018-06-22 04:34:29,649 WARN ]: Spent 1.19 s on a formula simplification. DAG size of input: 42 DAG size of output: 14 [2018-06-22 04:34:30,024 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:30,059 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:34:30,059 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-06-22 04:34:30,059 INFO ]: Interpolant automaton has 11 states [2018-06-22 04:34:30,059 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 04:34:30,059 INFO ]: CoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2018-06-22 04:34:30,060 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-06-22 04:34:30,377 WARN ]: Spent 152.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-06-22 04:34:30,461 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:34:30,461 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-22 04:34:30,461 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-22 04:34:30,461 INFO ]: Start accepts. Automaton has 11 states. Word has length 11 [2018-06-22 04:34:30,461 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:34:30,462 INFO ]: With dead ends: 14 [2018-06-22 04:34:30,462 INFO ]: Without dead ends: 14 [2018-06-22 04:34:30,462 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2018-06-22 04:34:30,462 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-22 04:34:30,463 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-22 04:34:30,464 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-22 04:34:30,464 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-22 04:34:30,464 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-06-22 04:34:30,464 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:34:30,464 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-22 04:34:30,464 INFO ]: Interpolant automaton has 11 states. [2018-06-22 04:34:30,464 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-22 04:34:30,465 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-22 04:34:30,465 INFO ]: Found error trace [2018-06-22 04:34:30,465 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:30,465 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:30,465 INFO ]: Analyzing trace with hash 23503628, now seen corresponding path program 4 times [2018-06-22 04:34:30,465 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:30,465 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:30,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:30,466 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:34:30,466 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:30,818 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:31,833 WARN ]: Spent 312.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 8 [2018-06-22 04:34:32,323 WARN ]: Spent 469.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 29 [2018-06-22 04:34:32,460 WARN ]: Spent 123.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 18 [2018-06-22 04:34:32,486 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:32,486 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:34:32,486 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:34:32,494 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 04:34:32,676 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 04:34:32,676 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:32,693 INFO ]: Computing forward predicates... [2018-06-22 04:34:33,274 WARN ]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 04:34:34,676 WARN ]: Spent 407.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-06-22 04:34:36,394 WARN ]: Spent 713.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 14 [2018-06-22 04:34:44,242 WARN ]: Spent 6.32 s on a formula simplification. DAG size of input: 413 DAG size of output: 153 [2018-06-22 04:34:49,850 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:49,871 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 04:34:49,895 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-06-22 04:34:49,896 INFO ]: Interpolant automaton has 15 states [2018-06-22 04:34:49,896 INFO ]: Constructing interpolant automaton starting with 15 interpolants. [2018-06-22 04:34:49,896 INFO ]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2018-06-22 04:34:49,896 INFO ]: Start difference. First operand 14 states and 14 transitions. Second operand 15 states. [2018-06-22 04:34:50,451 WARN ]: Spent 510.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 115 [2018-06-22 04:34:51,096 WARN ]: Spent 614.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 125 [2018-06-22 04:34:51,404 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 04:34:51,404 INFO ]: Finished difference Result 17 states and 17 transitions. [2018-06-22 04:34:51,404 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-06-22 04:34:51,404 INFO ]: Start accepts. Automaton has 15 states. Word has length 13 [2018-06-22 04:34:51,404 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 04:34:51,405 INFO ]: With dead ends: 17 [2018-06-22 04:34:51,405 INFO ]: Without dead ends: 17 [2018-06-22 04:34:51,405 INFO ]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=133, Invalid=209, Unknown=0, NotChecked=0, Total=342 [2018-06-22 04:34:51,405 INFO ]: Start minimizeSevpa. Operand 17 states. [2018-06-22 04:34:51,407 INFO ]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-06-22 04:34:51,407 INFO ]: Start removeUnreachable. Operand 17 states. [2018-06-22 04:34:51,407 INFO ]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-06-22 04:34:51,407 INFO ]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-06-22 04:34:51,407 INFO ]: Finished accepts. word is rejected. [2018-06-22 04:34:51,407 INFO ]: Abstraction has 17 states and 17 transitions. [2018-06-22 04:34:51,407 INFO ]: Interpolant automaton has 15 states. [2018-06-22 04:34:51,407 INFO ]: Start isEmpty. Operand 17 states and 17 transitions. [2018-06-22 04:34:51,408 INFO ]: Finished isEmpty. Found accepting run of length 17 [2018-06-22 04:34:51,408 INFO ]: Found error trace [2018-06-22 04:34:51,408 INFO ]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 04:34:51,408 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 04:34:51,408 INFO ]: Analyzing trace with hash -1752374252, now seen corresponding path program 5 times [2018-06-22 04:34:51,408 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 04:34:51,408 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 04:34:51,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:51,409 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 04:34:51,409 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 04:34:51,744 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:52,816 WARN ]: Spent 283.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 11 [2018-06-22 04:34:53,059 WARN ]: Spent 192.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 32 [2018-06-22 04:34:53,292 WARN ]: Spent 217.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 33 [2018-06-22 04:34:53,516 WARN ]: Spent 148.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 27 [2018-06-22 04:34:53,692 WARN ]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 27 [2018-06-22 04:34:53,791 INFO ]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 04:34:53,791 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 04:34:53,791 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:34:53,804 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 04:34:54,136 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-06-22 04:34:54,137 INFO ]: Conjunction of SSA is unsat [2018-06-22 04:34:54,156 INFO ]: Computing forward predicates... [2018-06-22 04:35:00,547 WARN ]: Spent 3.89 s on a formula simplification. DAG size of input: 355 DAG size of output: 153 Received shutdown request... [2018-06-22 04:35:13,810 WARN ]: Removed 66 from assertion stack [2018-06-22 04:35:13,810 INFO ]: Timeout while computing interpolants [2018-06-22 04:35:14,010 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 04:35:14,012 WARN ]: Verification canceled [2018-06-22 04:35:14,017 WARN ]: Timeout [2018-06-22 04:35:14,017 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:35:14 BoogieIcfgContainer [2018-06-22 04:35:14,017 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 04:35:14,018 INFO ]: Toolchain (without parser) took 56075.55 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 243.8 MB in the beginning and 876.5 MB in the end (delta: -632.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 04:35:14,019 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 04:35:14,019 INFO ]: ChcToBoogie took 132.18 ms. Allocated memory is still 309.3 MB. Free memory was 242.7 MB in the beginning and 239.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:35:14,020 INFO ]: Boogie Preprocessor took 75.44 ms. Allocated memory is still 309.3 MB. Free memory was 239.8 MB in the beginning and 237.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 04:35:14,020 INFO ]: RCFGBuilder took 496.66 ms. Allocated memory is still 309.3 MB. Free memory was 237.8 MB in the beginning and 206.4 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 3.6 GB. [2018-06-22 04:35:14,020 INFO ]: TraceAbstraction took 55350.35 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 206.4 MB in the beginning and 876.5 MB in the end (delta: -670.2 MB). Peak memory consumption was 1.2 GB. Max. memory is 3.6 GB. [2018-06-22 04:35:14,023 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 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 132.18 ms. Allocated memory is still 309.3 MB. Free memory was 242.7 MB in the beginning and 239.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 75.44 ms. Allocated memory is still 309.3 MB. Free memory was 239.8 MB in the beginning and 237.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 496.66 ms. Allocated memory is still 309.3 MB. Free memory was 237.8 MB in the beginning and 206.4 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 3.6 GB. * TraceAbstraction took 55350.35 ms. Allocated memory was 309.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 206.4 MB in the beginning and 876.5 MB in the end (delta: -670.2 MB). Peak memory consumption was 1.2 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 17 with TraceHistMax 9, while TraceCheckSpWp was constructing forward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 443. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 55.2s OverallTime, 6 OverallIterations, 9 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 5 SDslu, 90 SDs, 0 SdLazy, 44 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=5, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 28.6s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 10971 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1996 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/76 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/s3_srvr_10.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_04-35-14-033.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/s3_srvr_10.cil.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_04-35-14-033.csv Completed graceful shutdown