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/svd-some-loop.c.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8d74a04 [2018-06-22 06:03:13,168 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-22 06:03:13,226 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-22 06:03:13,240 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-22 06:03:13,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-22 06:03:13,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-22 06:03:13,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-22 06:03:13,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-22 06:03:13,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-22 06:03:13,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-22 06:03:13,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-22 06:03:13,248 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-22 06:03:13,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-22 06:03:13,251 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-22 06:03:13,252 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-22 06:03:13,257 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-22 06:03:13,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-22 06:03:13,270 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-22 06:03:13,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-22 06:03:13,273 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-22 06:03:13,274 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-22 06:03:13,276 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-22 06:03:13,277 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-22 06:03:13,277 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-22 06:03:13,284 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-22 06:03:13,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-22 06:03:13,288 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-22 06:03:13,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-22 06:03:13,293 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-22 06:03:13,293 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-22 06:03:13,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-22 06:03:13,294 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-22 06:03:13,294 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-22 06:03:13,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-22 06:03:13,295 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-22 06:03:13,296 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-22 06:03:13,311 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-22 06:03:13,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-22 06:03:13,312 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-22 06:03:13,312 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-22 06:03:13,313 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-22 06:03:13,313 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-22 06:03:13,314 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-22 06:03:13,314 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-22 06:03:13,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 06:03:13,314 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-22 06:03:13,314 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-22 06:03:13,314 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-22 06:03:13,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-22 06:03:13,315 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-22 06:03:13,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-22 06:03:13,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-22 06:03:13,315 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-22 06:03:13,317 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-22 06:03:13,317 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-22 06:03:13,375 INFO ]: Repository-Root is: /tmp [2018-06-22 06:03:13,539 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-22 06:03:13,542 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-22 06:03:13,548 INFO ]: Initializing SmtParser... [2018-06-22 06:03:13,548 INFO ]: SmtParser initialized [2018-06-22 06:03:13,549 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd-some-loop.c.smt2 [2018-06-22 06:03:13,572 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 06:03:13,974 INFO ]: Executing SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd-some-loop.c.smt2 unknown [2018-06-22 06:03:14,885 INFO ]: Succesfully executed SMT file /storage/chc-comp/vmt-chc-benchmarks/ctigar/svd-some-loop.c.smt2 [2018-06-22 06:03:14,891 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-22 06:03:14,897 INFO ]: Walking toolchain with 4 elements. [2018-06-22 06:03:14,898 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-22 06:03:14,898 INFO ]: Initializing ChcToBoogie... [2018-06-22 06:03:14,898 INFO ]: ChcToBoogie initialized [2018-06-22 06:03:14,981 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:03:14" (1/1) ... [2018-06-22 06:03:15,096 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15 Unit [2018-06-22 06:03:15,097 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-22 06:03:15,097 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-22 06:03:15,098 INFO ]: Initializing Boogie Preprocessor... [2018-06-22 06:03:15,098 INFO ]: Boogie Preprocessor initialized [2018-06-22 06:03:15,120 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,120 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,143 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,144 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,171 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,173 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,177 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (1/1) ... [2018-06-22 06:03:15,182 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-22 06:03:15,182 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-22 06:03:15,182 INFO ]: Initializing RCFGBuilder... [2018-06-22 06:03:15,182 INFO ]: RCFGBuilder initialized [2018-06-22 06:03:15,184 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-22 06:03:15,271 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-22 06:03:15,271 INFO ]: Found specification of procedure gotoProc [2018-06-22 06:03:15,271 INFO ]: Found implementation of procedure gotoProc [2018-06-22 06:03:15,271 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-22 06:03:15,271 INFO ]: Found specification of procedure Ultimate.START [2018-06-22 06:03:15,271 INFO ]: Found implementation of procedure Ultimate.START [2018-06-22 06:03:15,915 INFO ]: Using library mode [2018-06-22 06:03:15,916 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:03:15 BoogieIcfgContainer [2018-06-22 06:03:15,916 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-22 06:03:15,917 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-22 06:03:15,917 INFO ]: Initializing TraceAbstraction... [2018-06-22 06:03:15,944 INFO ]: TraceAbstraction initialized [2018-06-22 06:03:15,944 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 22.06 06:03:14" (1/3) ... [2018-06-22 06:03:15,945 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d8d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 22.06 06:03:15, skipping insertion in model container [2018-06-22 06:03:15,945 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 22.06 06:03:15" (2/3) ... [2018-06-22 06:03:15,945 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@332d8d3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 06:03:15, skipping insertion in model container [2018-06-22 06:03:15,945 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 06:03:15" (3/3) ... [2018-06-22 06:03:15,947 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-22 06:03:15,990 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-22 06:03:16,023 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-22 06:03:16,245 INFO ]: Using default assertion order modulation [2018-06-22 06:03:16,246 INFO ]: Interprodecural is true [2018-06-22 06:03:16,246 INFO ]: Hoare is false [2018-06-22 06:03:16,246 INFO ]: Compute interpolants for FPandBP [2018-06-22 06:03:16,246 INFO ]: Backedges is TWOTRACK [2018-06-22 06:03:16,246 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-22 06:03:16,246 INFO ]: Difference is false [2018-06-22 06:03:16,246 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-22 06:03:16,246 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-22 06:03:16,299 INFO ]: Start isEmpty. Operand 10 states. [2018-06-22 06:03:16,313 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-22 06:03:16,314 INFO ]: Found error trace [2018-06-22 06:03:16,317 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:16,318 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:16,323 INFO ]: Analyzing trace with hash 1285054476, now seen corresponding path program 1 times [2018-06-22 06:03:16,325 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:16,326 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:16,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:16,361 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:03:16,361 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:16,427 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:16,572 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:16,574 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-22 06:03:16,574 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-22 06:03:16,576 INFO ]: Interpolant automaton has 3 states [2018-06-22 06:03:16,587 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-22 06:03:16,588 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-22 06:03:16,590 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-22 06:03:16,684 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:03:16,684 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-22 06:03:16,688 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-22 06:03:16,690 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-22 06:03:16,690 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:03:16,703 INFO ]: With dead ends: 9 [2018-06-22 06:03:16,703 INFO ]: Without dead ends: 9 [2018-06-22 06:03:16,705 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 06:03:16,746 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-22 06:03:16,773 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-22 06:03:16,777 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-22 06:03:16,778 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-22 06:03:16,779 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-22 06:03:16,779 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:03:16,779 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-22 06:03:16,779 INFO ]: Interpolant automaton has 3 states. [2018-06-22 06:03:16,779 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-22 06:03:16,780 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-22 06:03:16,780 INFO ]: Found error trace [2018-06-22 06:03:16,780 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:16,780 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:16,780 INFO ]: Analyzing trace with hash 1180100628, now seen corresponding path program 1 times [2018-06-22 06:03:16,780 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:16,781 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:16,784 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:16,784 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:03:16,784 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:16,926 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:17,209 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:17,210 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:03:17,210 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 06:03:17,217 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:03:17,316 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:17,344 INFO ]: Computing forward predicates... [2018-06-22 06:03:18,373 WARN ]: Spent 580.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 11 [2018-06-22 06:03:18,950 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:18,987 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:03:18,988 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-06-22 06:03:18,988 INFO ]: Interpolant automaton has 5 states [2018-06-22 06:03:18,988 INFO ]: Constructing interpolant automaton starting with 5 interpolants. [2018-06-22 06:03:18,989 INFO ]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-06-22 06:03:18,989 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-06-22 06:03:19,498 WARN ]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-06-22 06:03:19,540 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:03:19,540 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-22 06:03:19,547 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-22 06:03:19,547 INFO ]: Start accepts. Automaton has 5 states. Word has length 8 [2018-06-22 06:03:19,547 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:03:19,548 INFO ]: With dead ends: 10 [2018-06-22 06:03:19,548 INFO ]: Without dead ends: 10 [2018-06-22 06:03:19,549 INFO ]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-06-22 06:03:19,549 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-22 06:03:19,550 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-22 06:03:19,550 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-22 06:03:19,550 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-22 06:03:19,550 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-22 06:03:19,550 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:03:19,550 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-22 06:03:19,550 INFO ]: Interpolant automaton has 5 states. [2018-06-22 06:03:19,550 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-22 06:03:19,557 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-22 06:03:19,557 INFO ]: Found error trace [2018-06-22 06:03:19,557 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:19,557 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:19,557 INFO ]: Analyzing trace with hash -2073468660, now seen corresponding path program 2 times [2018-06-22 06:03:19,557 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:19,557 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:19,558 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:19,558 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-22 06:03:19,558 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:19,689 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:20,265 WARN ]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-06-22 06:03:20,484 WARN ]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-06-22 06:03:20,526 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:20,526 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:03:20,526 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 06:03:20,539 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-06-22 06:03:20,675 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-22 06:03:20,675 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:20,680 INFO ]: Computing forward predicates... [2018-06-22 06:03:21,186 WARN ]: Spent 180.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 20 [2018-06-22 06:03:31,351 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:31,372 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:03:31,372 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-06-22 06:03:31,373 INFO ]: Interpolant automaton has 6 states [2018-06-22 06:03:31,373 INFO ]: Constructing interpolant automaton starting with 6 interpolants. [2018-06-22 06:03:31,373 INFO ]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-06-22 06:03:31,373 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 6 states. [2018-06-22 06:03:31,440 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:03:31,440 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-22 06:03:31,441 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-22 06:03:31,441 INFO ]: Start accepts. Automaton has 6 states. Word has length 9 [2018-06-22 06:03:31,441 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:03:31,441 INFO ]: With dead ends: 11 [2018-06-22 06:03:31,441 INFO ]: Without dead ends: 11 [2018-06-22 06:03:31,442 INFO ]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-06-22 06:03:31,442 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-22 06:03:31,443 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-22 06:03:31,443 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-22 06:03:31,443 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-22 06:03:31,443 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-22 06:03:31,443 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:03:31,443 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-22 06:03:31,443 INFO ]: Interpolant automaton has 6 states. [2018-06-22 06:03:31,443 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-22 06:03:31,444 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-22 06:03:31,444 INFO ]: Found error trace [2018-06-22 06:03:31,444 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:31,444 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:31,444 INFO ]: Analyzing trace with hash 145098516, now seen corresponding path program 3 times [2018-06-22 06:03:31,444 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:31,444 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:31,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:31,445 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:03:31,445 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:31,562 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:31,887 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:31,887 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:03:31,887 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) [2018-06-22 06:03:31,902 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:03:32,028 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-22 06:03:32,028 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:32,033 INFO ]: Computing forward predicates... [2018-06-22 06:03:35,561 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:03:38,432 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:38,454 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:03:38,454 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-06-22 06:03:38,454 INFO ]: Interpolant automaton has 7 states [2018-06-22 06:03:38,454 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-22 06:03:38,454 INFO ]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-06-22 06:03:38,454 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-06-22 06:03:38,601 WARN ]: Spent 137.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 22 [2018-06-22 06:03:38,803 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:03:38,803 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-22 06:03:38,803 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-22 06:03:38,803 INFO ]: Start accepts. Automaton has 7 states. Word has length 10 [2018-06-22 06:03:38,803 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:03:38,803 INFO ]: With dead ends: 12 [2018-06-22 06:03:38,803 INFO ]: Without dead ends: 12 [2018-06-22 06:03:38,804 INFO ]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-06-22 06:03:38,804 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-22 06:03:38,805 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-22 06:03:38,805 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-22 06:03:38,806 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-22 06:03:38,806 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-22 06:03:38,806 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:03:38,806 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-22 06:03:38,806 INFO ]: Interpolant automaton has 7 states. [2018-06-22 06:03:38,806 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-22 06:03:38,806 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-22 06:03:38,806 INFO ]: Found error trace [2018-06-22 06:03:38,806 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:38,806 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:38,806 INFO ]: Analyzing trace with hash 201204236, now seen corresponding path program 4 times [2018-06-22 06:03:38,806 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:38,806 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:38,807 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:38,807 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:03:38,807 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:38,939 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:39,305 WARN ]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-06-22 06:03:39,372 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:39,372 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:03:39,372 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 06:03:39,379 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-22 06:03:39,509 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-22 06:03:39,509 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:39,514 INFO ]: Computing forward predicates... [2018-06-22 06:03:45,686 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:03:45,870 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:03:56,035 WARN ]: Spent 1.16 s on a formula simplification. DAG size of input: 224 DAG size of output: 22 [2018-06-22 06:03:57,363 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:57,389 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-22 06:03:57,389 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-06-22 06:03:57,389 INFO ]: Interpolant automaton has 11 states [2018-06-22 06:03:57,389 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-22 06:03:57,389 INFO ]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-06-22 06:03:57,390 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-06-22 06:03:57,519 WARN ]: Spent 119.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-06-22 06:03:57,781 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-22 06:03:57,781 INFO ]: Finished difference Result 13 states and 13 transitions. [2018-06-22 06:03:57,781 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-06-22 06:03:57,781 INFO ]: Start accepts. Automaton has 11 states. Word has length 11 [2018-06-22 06:03:57,781 INFO ]: Finished accepts. some prefix is accepted. [2018-06-22 06:03:57,781 INFO ]: With dead ends: 13 [2018-06-22 06:03:57,781 INFO ]: Without dead ends: 13 [2018-06-22 06:03:57,782 INFO ]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2018-06-22 06:03:57,782 INFO ]: Start minimizeSevpa. Operand 13 states. [2018-06-22 06:03:57,783 INFO ]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-06-22 06:03:57,783 INFO ]: Start removeUnreachable. Operand 13 states. [2018-06-22 06:03:57,784 INFO ]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-06-22 06:03:57,784 INFO ]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-06-22 06:03:57,784 INFO ]: Finished accepts. word is rejected. [2018-06-22 06:03:57,784 INFO ]: Abstraction has 13 states and 13 transitions. [2018-06-22 06:03:57,784 INFO ]: Interpolant automaton has 11 states. [2018-06-22 06:03:57,784 INFO ]: Start isEmpty. Operand 13 states and 13 transitions. [2018-06-22 06:03:57,784 INFO ]: Finished isEmpty. Found accepting run of length 13 [2018-06-22 06:03:57,784 INFO ]: Found error trace [2018-06-22 06:03:57,784 INFO ]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1] [2018-06-22 06:03:57,784 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-22 06:03:57,784 INFO ]: Analyzing trace with hash 1940481556, now seen corresponding path program 5 times [2018-06-22 06:03:57,784 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-22 06:03:57,785 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-22 06:03:57,785 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:57,785 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-22 06:03:57,785 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-22 06:03:58,009 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:58,400 WARN ]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-06-22 06:03:58,535 WARN ]: Spent 119.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 17 [2018-06-22 06:03:58,746 INFO ]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-22 06:03:58,746 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-22 06:03:58,746 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 06:03:58,764 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-22 06:03:58,916 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-22 06:03:58,916 INFO ]: Conjunction of SSA is unsat [2018-06-22 06:03:58,923 INFO ]: Computing forward predicates... [2018-06-22 06:03:59,299 WARN ]: Spent 231.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2018-06-22 06:04:04,281 WARN ]: expecting exponential blowup for input size 6 [2018-06-22 06:04:04,452 WARN ]: expecting exponential blowup for input size 6 Received shutdown request... [2018-06-22 06:04:17,100 INFO ]: Timeout while computing interpolants [2018-06-22 06:04:17,301 WARN ]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-22 06:04:17,301 WARN ]: Verification canceled [2018-06-22 06:04:17,306 WARN ]: Timeout [2018-06-22 06:04:17,306 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 06:04:17 BoogieIcfgContainer [2018-06-22 06:04:17,306 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-22 06:04:17,307 INFO ]: Toolchain (without parser) took 62415.07 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 237.7 MB in the beginning and 1.1 GB in the end (delta: -833.1 MB). Peak memory consumption was 373.8 MB. Max. memory is 3.6 GB. [2018-06-22 06:04:17,307 INFO ]: SmtParser took 0.08 ms. Allocated memory is still 308.3 MB. Free memory is still 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-22 06:04:17,308 INFO ]: ChcToBoogie took 199.25 ms. Allocated memory is still 308.3 MB. Free memory was 236.7 MB in the beginning and 234.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:04:17,308 INFO ]: Boogie Preprocessor took 84.38 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 232.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-22 06:04:17,309 INFO ]: RCFGBuilder took 733.34 ms. Allocated memory is still 308.3 MB. Free memory was 232.7 MB in the beginning and 207.0 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 3.6 GB. [2018-06-22 06:04:17,309 INFO ]: TraceAbstraction took 61388.60 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 207.0 MB in the beginning and 1.1 GB in the end (delta: -863.8 MB). Peak memory consumption was 343.1 MB. Max. memory is 3.6 GB. [2018-06-22 06:04:17,317 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 271.8 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 199.25 ms. Allocated memory is still 308.3 MB. Free memory was 236.7 MB in the beginning and 234.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 84.38 ms. Allocated memory is still 308.3 MB. Free memory was 234.7 MB in the beginning and 232.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 733.34 ms. Allocated memory is still 308.3 MB. Free memory was 232.7 MB in the beginning and 207.0 MB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 3.6 GB. * TraceAbstraction took 61388.60 ms. Allocated memory was 308.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 207.0 MB in the beginning and 1.1 GB in the end (delta: -863.8 MB). Peak memory consumption was 343.1 MB. 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 XnfDer was eliminating 23 quantified variables from 10 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. TIMEOUT Result, 61.0s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 8 SDslu, 77 SDs, 0 SdLazy, 34 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 5.2s 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, 0.9s SatisfiabilityAnalysisTime, 38.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 4596 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1698 ConjunctsInSsa, 147 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/svd-some-loop.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-22_06-04-17-328.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/svd-some-loop.c.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-22_06-04-17-328.csv Completed graceful shutdown