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/ctigar/rajamani_1.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 05:49:05,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 05:49:05,112 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 05:49:05,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 05:49:05,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 05:49:05,125 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 05:49:05,126 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 05:49:05,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 05:49:05,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 05:49:05,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 05:49:05,131 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 05:49:05,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 05:49:05,132 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 05:49:05,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 05:49:05,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 05:49:05,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 05:49:05,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 05:49:05,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 05:49:05,141 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 05:49:05,142 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 05:49:05,143 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 05:49:05,146 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 05:49:05,146 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 05:49:05,146 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 05:49:05,147 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 05:49:05,148 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 05:49:05,149 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 05:49:05,150 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 05:49:05,151 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 05:49:05,152 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 05:49:05,152 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 05:49:05,153 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 05:49:05,153 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 05:49:05,154 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 05:49:05,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 05:49:05,155 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 05:49:05,171 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 05:49:05,171 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 05:49:05,172 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 05:49:05,172 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 05:49:05,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 05:49:05,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 05:49:05,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 05:49:05,174 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 05:49:05,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 05:49:05,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 05:49:05,174 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 05:49:05,175 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 05:49:05,175 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 05:49:05,175 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 05:49:05,175 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 05:49:05,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 05:49:05,176 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 05:49:05,177 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 05:49:05,177 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 05:49:05,234 INFO ]: Repository-Root is: /tmp [2018-06-22 05:49:05,251 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 05:49:05,259 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 05:49:05,261 INFO ]: Initializing SmtParser... [2018-06-22 05:49:05,261 INFO ]: SmtParser initialized [2018-06-22 05:49:05,261 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 [2018-06-22 05:49:05,263 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 05:49:05,359 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 unknown [2018-06-22 05:49:05,699 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/rajamani_1.c.smt2 [2018-06-22 05:49:05,704 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 05:49:05,709 INFO ]: Walking toolchain with 4 elements. [2018-06-22 05:49:05,710 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 05:49:05,710 INFO ]: Initializing ChcToBoogie... [2018-06-22 05:49:05,710 INFO ]: ChcToBoogie initialized [2018-06-22 05:49:05,713 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,773 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05 Unit [2018-06-22 05:49:05,773 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 05:49:05,774 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 05:49:05,774 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 05:49:05,774 INFO ]: Boogie Preprocessor initialized [2018-06-22 05:49:05,796 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,796 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,804 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,804 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,819 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,820 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,822 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (1/1) ... [2018-06-22 05:49:05,825 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 05:49:05,825 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 05:49:05,825 INFO ]: Initializing RCFGBuilder... [2018-06-22 05:49:05,825 INFO ]: RCFGBuilder initialized [2018-06-22 05:49:05,826 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (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 05:49:05,844 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 05:49:05,844 INFO ]: Found specification of procedure gotoProc [2018-06-22 05:49:05,844 INFO ]: Found implementation of procedure gotoProc [2018-06-22 05:49:05,844 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 05:49:05,844 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 05:49:05,844 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 05:49:06,036 INFO ]: Using library mode [2018-06-22 05:49:06,036 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:06 BoogieIcfgContainer [2018-06-22 05:49:06,036 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 05:49:06,038 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 05:49:06,038 INFO ]: Initializing TraceAbstraction... [2018-06-22 05:49:06,041 INFO ]: TraceAbstraction initialized [2018-06-22 05:49:06,042 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 05:49:05" (1/3) ... [2018-06-22 05:49:06,042 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0340f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 05:49:06, skipping insertion in model container [2018-06-22 05:49:06,043 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 05:49:05" (2/3) ... [2018-06-22 05:49:06,043 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e0340f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 05:49:06, skipping insertion in model container [2018-06-22 05:49:06,043 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 05:49:06" (3/3) ... [2018-06-22 05:49:06,045 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 05:49:06,054 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 05:49:06,062 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 05:49:06,101 INFO ]: Using default assertion order modulation [2018-06-22 05:49:06,101 INFO ]: Interprodecural is true [2018-06-22 05:49:06,101 INFO ]: Hoare is false [2018-06-22 05:49:06,101 INFO ]: Compute interpolants for FPandBP [2018-06-22 05:49:06,101 INFO ]: Backedges is TWOTRACK [2018-06-22 05:49:06,101 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 05:49:06,101 INFO ]: Difference is false [2018-06-22 05:49:06,101 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 05:49:06,101 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 05:49:06,116 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 05:49:06,125 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 05:49:06,125 INFO ]: Found error trace [2018-06-22 05:49:06,126 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:49:06,126 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:49:06,130 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 05:49:06,132 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:49:06,132 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:49:06,165 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:06,165 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:49:06,165 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:06,198 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:06,288 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:06,290 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 05:49:06,290 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 05:49:06,292 INFO ]: Interpolant automaton has 3 states [2018-06-22 05:49:06,309 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 05:49:06,310 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 05:49:06,313 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 05:49:06,405 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:49:06,405 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 05:49:06,411 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 05:49:06,416 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 05:49:06,417 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:49:06,425 INFO ]: With dead ends: 9 [2018-06-22 05:49:06,425 INFO ]: Without dead ends: 9 [2018-06-22 05:49:06,436 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 05:49:06,472 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 05:49:06,490 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 05:49:06,491 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 05:49:06,491 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 05:49:06,492 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 05:49:06,493 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:49:06,493 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 05:49:06,493 INFO ]: Interpolant automaton has 3 states. [2018-06-22 05:49:06,493 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 05:49:06,493 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 05:49:06,493 INFO ]: Found error trace [2018-06-22 05:49:06,493 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:49:06,493 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:49:06,494 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 05:49:06,494 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:49:06,494 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:49:06,495 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:06,495 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:49:06,495 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:06,544 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:06,714 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:06,714 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:49:06,714 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 05:49:06,721 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:49:06,773 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:06,783 INFO ]: Computing forward predicates... [2018-06-22 05:49:06,921 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:06,942 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:49:06,943 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-22 05:49:06,943 INFO ]: Interpolant automaton has 4 states [2018-06-22 05:49:06,943 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-22 05:49:06,943 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-22 05:49:06,944 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2018-06-22 05:49:07,038 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:49:07,038 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 05:49:07,038 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-22 05:49:07,038 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-22 05:49:07,038 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:49:07,038 INFO ]: With dead ends: 10 [2018-06-22 05:49:07,038 INFO ]: Without dead ends: 10 [2018-06-22 05:49:07,039 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-22 05:49:07,039 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 05:49:07,040 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 05:49:07,040 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 05:49:07,041 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 05:49:07,041 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 05:49:07,041 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:49:07,041 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 05:49:07,041 INFO ]: Interpolant automaton has 4 states. [2018-06-22 05:49:07,041 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 05:49:07,041 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 05:49:07,041 INFO ]: Found error trace [2018-06-22 05:49:07,041 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:49:07,042 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:49:07,042 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 05:49:07,042 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:49:07,042 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:49:07,043 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:07,043 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 05:49:07,043 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:07,091 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:07,446 WARN ]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-06-22 05:49:07,447 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:07,447 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:49:07,447 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 05:49:07,456 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 05:49:07,544 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 05:49:07,544 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:07,547 INFO ]: Computing forward predicates... [2018-06-22 05:49:09,395 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:09,423 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:49:09,423 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 05:49:09,423 INFO ]: Interpolant automaton has 6 states [2018-06-22 05:49:09,423 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 05:49:09,423 INFO ]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-06-22 05:49:09,423 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 05:49:09,506 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:49:09,506 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 05:49:09,507 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 05:49:09,507 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 05:49:09,507 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:49:09,507 INFO ]: With dead ends: 11 [2018-06-22 05:49:09,507 INFO ]: Without dead ends: 11 [2018-06-22 05:49:09,508 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:49:09,508 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 05:49:09,509 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 05:49:09,509 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 05:49:09,509 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 05:49:09,509 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 05:49:09,509 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:49:09,510 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 05:49:09,510 INFO ]: Interpolant automaton has 6 states. [2018-06-22 05:49:09,510 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 05:49:09,510 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 05:49:09,510 INFO ]: Found error trace [2018-06-22 05:49:09,510 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:49:09,510 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:49:09,510 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-22 05:49:09,510 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:49:09,510 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:49:09,512 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:09,513 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:49:09,513 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:09,566 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:09,686 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:09,687 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:49:09,687 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 05:49:09,693 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-22 05:49:09,732 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 05:49:09,733 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:09,736 INFO ]: Computing forward predicates... [2018-06-22 05:49:18,361 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:18,398 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:49:18,398 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 05:49:18,399 INFO ]: Interpolant automaton has 7 states [2018-06-22 05:49:18,399 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 05:49:18,399 INFO ]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-06-22 05:49:18,399 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-22 05:49:18,924 WARN ]: Spent 457.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2018-06-22 05:49:19,774 WARN ]: Spent 745.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-06-22 05:49:19,859 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:49:19,859 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 05:49:19,859 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 05:49:19,859 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-22 05:49:19,859 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:49:19,859 INFO ]: With dead ends: 12 [2018-06-22 05:49:19,859 INFO ]: Without dead ends: 12 [2018-06-22 05:49:19,860 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-06-22 05:49:19,860 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 05:49:19,861 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 05:49:19,861 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 05:49:19,862 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 05:49:19,862 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 05:49:19,862 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:49:19,862 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 05:49:19,862 INFO ]: Interpolant automaton has 7 states. [2018-06-22 05:49:19,862 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 05:49:19,862 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 05:49:19,862 INFO ]: Found error trace [2018-06-22 05:49:19,862 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:49:19,862 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:49:19,863 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 4 times [2018-06-22 05:49:19,863 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:49:19,863 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:49:19,863 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:19,863 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:49:19,863 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:49:19,927 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:20,489 WARN ]: Spent 288.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-06-22 05:49:20,674 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:49:20,674 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:49:20,674 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 05:49:20,683 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 05:49:20,750 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 05:49:20,750 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:49:20,754 INFO ]: Computing forward predicates... [2018-06-22 05:50:00,274 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 05:50:01,288 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:01,320 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 05:50:01,320 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-06-22 05:50:01,320 INFO ]: Interpolant automaton has 8 states [2018-06-22 05:50:01,321 INFO ]: Constructing interpolant automaton starting with 8 interpolants. [2018-06-22 05:50:01,321 INFO ]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-06-22 05:50:01,321 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 8 states. [2018-06-22 05:50:01,708 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 05:50:01,709 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 05:50:01,709 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 05:50:01,709 INFO ]: Start accepts. Automaton has 8 states. Word has length 11 [2018-06-22 05:50:01,709 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 05:50:01,709 INFO ]: With dead ends: 13 [2018-06-22 05:50:01,709 INFO ]: Without dead ends: 13 [2018-06-22 05:50:01,710 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=91, Unknown=0, NotChecked=0, Total=156 [2018-06-22 05:50:01,710 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 05:50:01,711 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 05:50:01,711 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 05:50:01,712 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 05:50:01,712 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-22 05:50:01,712 INFO ]: Finished accepts. word is rejected. [2018-06-22 05:50:01,712 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 05:50:01,712 INFO ]: Interpolant automaton has 8 states. [2018-06-22 05:50:01,712 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 05:50:01,712 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 05:50:01,712 INFO ]: Found error trace [2018-06-22 05:50:01,712 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 05:50:01,712 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 05:50:01,712 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 5 times [2018-06-22 05:50:01,712 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 05:50:01,712 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 05:50:01,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:01,713 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 05:50:01,713 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 05:50:01,786 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:02,070 WARN ]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-06-22 05:50:02,718 WARN ]: Spent 596.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-06-22 05:50:02,844 WARN ]: Spent 107.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 13 [2018-06-22 05:50:02,966 WARN ]: Spent 116.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2018-06-22 05:50:02,989 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 05:50:02,989 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 05:50:02,989 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) [2018-06-22 05:50:03,007 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:50:03,074 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 05:50:03,074 INFO ]: Conjunction of SSA is unsat [2018-06-22 05:50:03,078 INFO ]: Computing forward predicates... Received shutdown request... [2018-06-22 05:50:09,981 INFO ]: Timeout while computing interpolants [2018-06-22 05:50:10,182 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 05:50:10,182 WARN ]: Verification canceled [2018-06-22 05:50:10,185 WARN ]: Timeout [2018-06-22 05:50:10,186 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 05:50:10 BoogieIcfgContainer [2018-06-22 05:50:10,186 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 05:50:10,187 INFO ]: Toolchain (without parser) took 64482.21 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 261.4 MB in the beginning and 534.2 MB in the end (delta: -272.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:50:10,188 INFO ]: SmtParser took 0.09 ms. Allocated memory is still 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 05:50:10,188 INFO ]: ChcToBoogie took 64.21 ms. Allocated memory is still 309.9 MB. Free memory was 261.4 MB in the beginning and 258.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:50:10,189 INFO ]: Boogie Preprocessor took 50.30 ms. Allocated memory is still 309.9 MB. Free memory was 258.4 MB in the beginning and 257.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. [2018-06-22 05:50:10,189 INFO ]: RCFGBuilder took 211.21 ms. Allocated memory is still 309.9 MB. Free memory was 257.4 MB in the beginning and 246.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. [2018-06-22 05:50:10,190 INFO ]: TraceAbstraction took 64147.76 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 246.4 MB in the beginning and 534.2 MB in the end (delta: -287.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 3.6 GB. [2018-06-22 05:50:10,192 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 309.9 MB. Free memory is still 275.5 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 64.21 ms. Allocated memory is still 309.9 MB. Free memory was 261.4 MB in the beginning and 258.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 50.30 ms. Allocated memory is still 309.9 MB. Free memory was 258.4 MB in the beginning and 257.4 MB in the end (delta: 996.1 kB). Peak memory consumption was 996.1 kB. Max. memory is 3.6 GB. * RCFGBuilder took 211.21 ms. Allocated memory is still 309.9 MB. Free memory was 257.4 MB in the beginning and 246.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 64147.76 ms. Allocated memory was 309.9 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 246.4 MB in the beginning and 534.2 MB in the end (delta: -287.8 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 13 with TraceHistMax 5, while TraceCheckSpWp was constructing forward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations, while XnfDer was eliminating 874 quantified variables from 13 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 64.0s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 6 SDslu, 79 SDs, 0 SdLazy, 34 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 32 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 52.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 2615 SizeOfPredicates, 20 NumberOfNonLiveVariables, 668 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/40 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/rajamani_1.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_05-50-10-205.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/rajamani_1.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_05-50-10-205.csv Completed graceful shutdown