java -Xss4m -Xmx4000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCHC.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf -i /storage/chc-comp/sally-chc-benchmarks/misc/inc_cas_prop2.smt2 -------------------------------------------------------------------------------- This is Ultimate 0.1.23-14921ce [2018-06-25 10:32:06,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-06-25 10:32:06,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-06-25 10:32:06,159 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-06-25 10:32:06,160 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-06-25 10:32:06,161 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-06-25 10:32:06,162 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-06-25 10:32:06,163 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-06-25 10:32:06,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-06-25 10:32:06,166 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-06-25 10:32:06,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-06-25 10:32:06,167 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-06-25 10:32:06,167 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-06-25 10:32:06,169 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-06-25 10:32:06,169 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-06-25 10:32:06,170 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-06-25 10:32:06,172 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-06-25 10:32:06,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-06-25 10:32:06,178 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-06-25 10:32:06,179 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-06-25 10:32:06,180 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-06-25 10:32:06,182 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-06-25 10:32:06,183 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-06-25 10:32:06,183 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-06-25 10:32:06,184 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-06-25 10:32:06,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-06-25 10:32:06,185 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-06-25 10:32:06,186 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-06-25 10:32:06,187 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-06-25 10:32:06,188 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-06-25 10:32:06,188 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-06-25 10:32:06,189 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-06-25 10:32:06,189 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-06-25 10:32:06,190 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-06-25 10:32:06,191 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-06-25 10:32:06,191 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/chc/AutomizerCHC/AutomizerCHC_Goto.epf [2018-06-25 10:32:06,205 INFO L110 SettingsManager]: Loading preferences was successful [2018-06-25 10:32:06,205 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-06-25 10:32:06,206 INFO L131 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2018-06-25 10:32:06,206 INFO L133 SettingsManager]: * Logger pattern=[%d{ISO8601} %-5p]: %m%n [2018-06-25 10:32:06,207 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-06-25 10:32:06,207 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-06-25 10:32:06,207 INFO L133 SettingsManager]: * Create interprocedural compositions=false [2018-06-25 10:32:06,207 INFO L133 SettingsManager]: * Use SBE=true [2018-06-25 10:32:06,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-06-25 10:32:06,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-06-25 10:32:06,208 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-06-25 10:32:06,208 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-06-25 10:32:06,208 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 10:32:06,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-06-25 10:32:06,209 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-06-25 10:32:06,209 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-06-25 10:32:06,209 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-06-25 10:32:06,209 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-06-25 10:32:06,210 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-06-25 10:32:06,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-06-25 10:32:06,210 INFO L133 SettingsManager]: * Compute trace for counterexample result=false [2018-06-25 10:32:06,211 INFO L131 SettingsManager]: Preferences of SmtParser differ from their defaults: [2018-06-25 10:32:06,211 INFO L133 SettingsManager]: * Use TreeAutomizer as solver for the given file (assumes the file contains Horn clauses only).=true [2018-06-25 10:32:06,258 INFO ]: Repository-Root is: /tmp [2018-06-25 10:32:06,274 INFO ]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-06-25 10:32:06,279 INFO ]: [Toolchain 1]: Toolchain data selected. [2018-06-25 10:32:06,281 INFO ]: Initializing SmtParser... [2018-06-25 10:32:06,281 INFO ]: SmtParser initialized [2018-06-25 10:32:06,282 INFO ]: [Toolchain 1]: Parsing single file: /storage/chc-comp/sally-chc-benchmarks/misc/inc_cas_prop2.smt2 [2018-06-25 10:32:06,283 INFO ]: Parsing .smt2 file as a set of Horn Clauses No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-06-25 10:32:06,374 INFO ]: Executing SMT file /storage/chc-comp/sally-chc-benchmarks/misc/inc_cas_prop2.smt2 unknown [2018-06-25 10:32:06,543 INFO ]: Succesfully executed SMT file /storage/chc-comp/sally-chc-benchmarks/misc/inc_cas_prop2.smt2 [2018-06-25 10:32:06,547 INFO ]: ####################### [Toolchain 1] ####################### [2018-06-25 10:32:06,553 INFO ]: Walking toolchain with 4 elements. [2018-06-25 10:32:06,554 INFO ]: ------------------------ChcToBoogie---------------------------- [2018-06-25 10:32:06,554 INFO ]: Initializing ChcToBoogie... [2018-06-25 10:32:06,554 INFO ]: ChcToBoogie initialized [2018-06-25 10:32:06,557 INFO ]: Executing the observer ChcToBoogieObserver from plugin ChcToBoogie for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,612 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06 Unit [2018-06-25 10:32:06,612 INFO ]: ------------------------ END ChcToBoogie---------------------------- [2018-06-25 10:32:06,614 INFO ]: ------------------------Boogie Preprocessor---------------------------- [2018-06-25 10:32:06,615 INFO ]: Initializing Boogie Preprocessor... [2018-06-25 10:32:06,615 INFO ]: Boogie Preprocessor initialized [2018-06-25 10:32:06,633 INFO ]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,633 INFO ]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,638 INFO ]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,638 INFO ]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,641 INFO ]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,642 INFO ]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,643 INFO ]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... [2018-06-25 10:32:06,645 INFO ]: ------------------------ END Boogie Preprocessor---------------------------- [2018-06-25 10:32:06,645 INFO ]: ------------------------RCFGBuilder---------------------------- [2018-06-25 10:32:06,645 INFO ]: Initializing RCFGBuilder... [2018-06-25 10:32:06,645 INFO ]: RCFGBuilder initialized [2018-06-25 10:32:06,646 INFO ]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2018-06-25 10:32:06,659 INFO ]: Specification and implementation of procedure gotoProc given in one single declaration [2018-06-25 10:32:06,659 INFO ]: Found specification of procedure gotoProc [2018-06-25 10:32:06,659 INFO ]: Found implementation of procedure gotoProc [2018-06-25 10:32:06,659 INFO ]: Specification and implementation of procedure Ultimate.START given in one single declaration [2018-06-25 10:32:06,659 INFO ]: Found specification of procedure Ultimate.START [2018-06-25 10:32:06,659 INFO ]: Found implementation of procedure Ultimate.START Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-06-25 10:32:06,884 INFO ]: Using library mode [2018-06-25 10:32:06,885 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:32:06 BoogieIcfgContainer [2018-06-25 10:32:06,885 INFO ]: ------------------------ END RCFGBuilder---------------------------- [2018-06-25 10:32:06,895 INFO ]: ------------------------TraceAbstraction---------------------------- [2018-06-25 10:32:06,895 INFO ]: Initializing TraceAbstraction... [2018-06-25 10:32:06,898 INFO ]: TraceAbstraction initialized [2018-06-25 10:32:06,898 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.source.smtparser OTHER 25.06 10:32:06" (1/3) ... [2018-06-25 10:32:06,899 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb8a5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction OTHER 25.06 10:32:06, skipping insertion in model container [2018-06-25 10:32:06,899 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.chctoboogie AST 25.06 10:32:06" (2/3) ... [2018-06-25 10:32:06,900 INFO ]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb8a5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.06 10:32:06, skipping insertion in model container [2018-06-25 10:32:06,900 INFO ]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.06 10:32:06" (3/3) ... [2018-06-25 10:32:06,901 INFO ]: Analyzing ICFG de.uni_freiburg.informatik.ultimate.plugins.chctoboogie.ChcToBoogieObserver [2018-06-25 10:32:06,920 INFO ]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-06-25 10:32:06,936 INFO ]: Appying trace abstraction to program that has 1 error locations. [2018-06-25 10:32:07,001 INFO ]: Using default assertion order modulation [2018-06-25 10:32:07,002 INFO ]: Interprodecural is true [2018-06-25 10:32:07,002 INFO ]: Hoare is false [2018-06-25 10:32:07,002 INFO ]: Compute interpolants for FPandBP [2018-06-25 10:32:07,002 INFO ]: Backedges is TWOTRACK [2018-06-25 10:32:07,002 INFO ]: Determinization is PREDICATE_ABSTRACTION [2018-06-25 10:32:07,002 INFO ]: Difference is false [2018-06-25 10:32:07,002 INFO ]: Minimize is MINIMIZE_SEVPA [2018-06-25 10:32:07,002 INFO ]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-06-25 10:32:07,020 INFO ]: Start isEmpty. Operand 10 states. [2018-06-25 10:32:07,034 INFO ]: Finished isEmpty. Found accepting run of length 8 [2018-06-25 10:32:07,034 INFO ]: Found error trace [2018-06-25 10:32:07,036 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:07,037 INFO ]: === Iteration 1 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:07,042 INFO ]: Analyzing trace with hash 1284994894, now seen corresponding path program 1 times [2018-06-25 10:32:07,044 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:07,045 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:07,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,079 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:32:07,079 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,119 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:07,166 INFO ]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:07,168 INFO ]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-06-25 10:32:07,168 INFO ]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-06-25 10:32:07,169 INFO ]: Interpolant automaton has 3 states [2018-06-25 10:32:07,179 INFO ]: Constructing interpolant automaton starting with 3 interpolants. [2018-06-25 10:32:07,180 INFO ]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:32:07,182 INFO ]: Start difference. First operand 10 states. Second operand 3 states. [2018-06-25 10:32:07,228 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:07,228 INFO ]: Finished difference Result 9 states and 9 transitions. [2018-06-25 10:32:07,229 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-06-25 10:32:07,231 INFO ]: Start accepts. Automaton has 3 states. Word has length 7 [2018-06-25 10:32:07,231 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:07,237 INFO ]: With dead ends: 9 [2018-06-25 10:32:07,237 INFO ]: Without dead ends: 9 [2018-06-25 10:32:07,238 INFO ]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-06-25 10:32:07,253 INFO ]: Start minimizeSevpa. Operand 9 states. [2018-06-25 10:32:07,270 INFO ]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-06-25 10:32:07,271 INFO ]: Start removeUnreachable. Operand 9 states. [2018-06-25 10:32:07,271 INFO ]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-06-25 10:32:07,273 INFO ]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-06-25 10:32:07,273 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:07,273 INFO ]: Abstraction has 9 states and 9 transitions. [2018-06-25 10:32:07,273 INFO ]: Interpolant automaton has 3 states. [2018-06-25 10:32:07,273 INFO ]: Start isEmpty. Operand 9 states and 9 transitions. [2018-06-25 10:32:07,273 INFO ]: Finished isEmpty. Found accepting run of length 9 [2018-06-25 10:32:07,273 INFO ]: Found error trace [2018-06-25 10:32:07,273 INFO ]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:07,273 INFO ]: === Iteration 2 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:07,274 INFO ]: Analyzing trace with hash 1180964567, now seen corresponding path program 1 times [2018-06-25 10:32:07,274 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:07,274 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:07,274 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,274 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:32:07,274 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,303 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:07,429 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:07,430 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:32:07,430 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 10:32:07,440 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:32:07,481 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:07,489 INFO ]: Computing forward predicates... [2018-06-25 10:32:07,622 INFO ]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:07,653 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:32:07,653 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-06-25 10:32:07,654 INFO ]: Interpolant automaton has 4 states [2018-06-25 10:32:07,654 INFO ]: Constructing interpolant automaton starting with 4 interpolants. [2018-06-25 10:32:07,654 INFO ]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 10:32:07,654 INFO ]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2018-06-25 10:32:07,681 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:07,681 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 10:32:07,681 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-06-25 10:32:07,681 INFO ]: Start accepts. Automaton has 4 states. Word has length 8 [2018-06-25 10:32:07,681 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:07,681 INFO ]: With dead ends: 10 [2018-06-25 10:32:07,682 INFO ]: Without dead ends: 10 [2018-06-25 10:32:07,682 INFO ]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-06-25 10:32:07,682 INFO ]: Start minimizeSevpa. Operand 10 states. [2018-06-25 10:32:07,683 INFO ]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-06-25 10:32:07,684 INFO ]: Start removeUnreachable. Operand 10 states. [2018-06-25 10:32:07,684 INFO ]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-06-25 10:32:07,684 INFO ]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-06-25 10:32:07,684 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:07,684 INFO ]: Abstraction has 10 states and 10 transitions. [2018-06-25 10:32:07,684 INFO ]: Interpolant automaton has 4 states. [2018-06-25 10:32:07,684 INFO ]: Start isEmpty. Operand 10 states and 10 transitions. [2018-06-25 10:32:07,684 INFO ]: Finished isEmpty. Found accepting run of length 10 [2018-06-25 10:32:07,684 INFO ]: Found error trace [2018-06-25 10:32:07,685 INFO ]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:07,685 INFO ]: === Iteration 3 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:07,685 INFO ]: Analyzing trace with hash -2043975570, now seen corresponding path program 2 times [2018-06-25 10:32:07,685 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:07,685 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:07,686 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,686 INFO ]: Keeping assertion order NOT_INCREMENTALLY [2018-06-25 10:32:07,686 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:07,721 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:07,956 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:07,956 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:32:07,956 INFO ]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-06-25 10:32:07,970 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-06-25 10:32:08,038 INFO ]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-06-25 10:32:08,038 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:08,042 INFO ]: Computing forward predicates... [2018-06-25 10:32:09,390 WARN ]: Spent 877.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-06-25 10:32:09,404 INFO ]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:09,424 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:32:09,424 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-06-25 10:32:09,424 INFO ]: Interpolant automaton has 7 states [2018-06-25 10:32:09,424 INFO ]: Constructing interpolant automaton starting with 7 interpolants. [2018-06-25 10:32:09,424 INFO ]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-06-25 10:32:09,424 INFO ]: Start difference. First operand 10 states and 10 transitions. Second operand 7 states. [2018-06-25 10:32:09,589 WARN ]: Spent 114.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2018-06-25 10:32:09,700 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:09,700 INFO ]: Finished difference Result 11 states and 11 transitions. [2018-06-25 10:32:09,701 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-06-25 10:32:09,701 INFO ]: Start accepts. Automaton has 7 states. Word has length 9 [2018-06-25 10:32:09,701 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:09,701 INFO ]: With dead ends: 11 [2018-06-25 10:32:09,701 INFO ]: Without dead ends: 11 [2018-06-25 10:32:09,702 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-06-25 10:32:09,702 INFO ]: Start minimizeSevpa. Operand 11 states. [2018-06-25 10:32:09,702 INFO ]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-06-25 10:32:09,702 INFO ]: Start removeUnreachable. Operand 11 states. [2018-06-25 10:32:09,703 INFO ]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-06-25 10:32:09,703 INFO ]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2018-06-25 10:32:09,703 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:09,703 INFO ]: Abstraction has 11 states and 11 transitions. [2018-06-25 10:32:09,703 INFO ]: Interpolant automaton has 7 states. [2018-06-25 10:32:09,703 INFO ]: Start isEmpty. Operand 11 states and 11 transitions. [2018-06-25 10:32:09,703 INFO ]: Finished isEmpty. Found accepting run of length 11 [2018-06-25 10:32:09,703 INFO ]: Found error trace [2018-06-25 10:32:09,703 INFO ]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:09,703 INFO ]: === Iteration 4 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:09,703 INFO ]: Analyzing trace with hash 1062095287, now seen corresponding path program 3 times [2018-06-25 10:32:09,703 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:09,703 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:09,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:09,704 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 10:32:09,704 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:09,745 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:09,981 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:09,982 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:32:09,982 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 [2018-06-25 10:32:09,993 INFO ]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-06-25 10:32:10,055 INFO ]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-06-25 10:32:10,055 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:10,060 INFO ]: Computing forward predicates... [2018-06-25 10:32:10,434 WARN ]: Spent 212.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2018-06-25 10:32:11,173 WARN ]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 23 [2018-06-25 10:32:11,176 INFO ]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:11,197 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:32:11,197 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-06-25 10:32:11,198 INFO ]: Interpolant automaton has 9 states [2018-06-25 10:32:11,198 INFO ]: Constructing interpolant automaton starting with 9 interpolants. [2018-06-25 10:32:11,198 INFO ]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-06-25 10:32:11,198 INFO ]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-06-25 10:32:11,221 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:11,221 INFO ]: Finished difference Result 12 states and 12 transitions. [2018-06-25 10:32:11,221 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-06-25 10:32:11,221 INFO ]: Start accepts. Automaton has 9 states. Word has length 10 [2018-06-25 10:32:11,221 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:11,221 INFO ]: With dead ends: 12 [2018-06-25 10:32:11,221 INFO ]: Without dead ends: 12 [2018-06-25 10:32:11,222 INFO ]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-06-25 10:32:11,222 INFO ]: Start minimizeSevpa. Operand 12 states. [2018-06-25 10:32:11,223 INFO ]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-06-25 10:32:11,223 INFO ]: Start removeUnreachable. Operand 12 states. [2018-06-25 10:32:11,224 INFO ]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-06-25 10:32:11,224 INFO ]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-06-25 10:32:11,224 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:11,224 INFO ]: Abstraction has 12 states and 12 transitions. [2018-06-25 10:32:11,224 INFO ]: Interpolant automaton has 9 states. [2018-06-25 10:32:11,224 INFO ]: Start isEmpty. Operand 12 states and 12 transitions. [2018-06-25 10:32:11,224 INFO ]: Finished isEmpty. Found accepting run of length 12 [2018-06-25 10:32:11,224 INFO ]: Found error trace [2018-06-25 10:32:11,224 INFO ]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:11,224 INFO ]: === Iteration 5 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:11,224 INFO ]: Analyzing trace with hash -1433955954, now seen corresponding path program 4 times [2018-06-25 10:32:11,224 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:11,224 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:11,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:11,225 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 10:32:11,225 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:11,273 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:11,758 WARN ]: Spent 234.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2018-06-25 10:32:11,944 WARN ]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2018-06-25 10:32:12,261 WARN ]: Spent 220.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 34 [2018-06-25 10:32:12,292 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:12,292 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:32:12,292 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 [2018-06-25 10:32:12,298 INFO ]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-06-25 10:32:12,328 INFO ]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-06-25 10:32:12,329 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:12,333 INFO ]: Computing forward predicates... [2018-06-25 10:32:12,561 WARN ]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2018-06-25 10:32:13,464 WARN ]: Spent 507.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 48 [2018-06-25 10:32:15,267 WARN ]: Spent 1.39 s on a formula simplification. DAG size of input: 212 DAG size of output: 62 [2018-06-25 10:32:18,545 WARN ]: Spent 2.36 s on a formula simplification. DAG size of input: 169 DAG size of output: 46 [2018-06-25 10:32:18,550 INFO ]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:18,586 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:32:18,586 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-06-25 10:32:18,586 INFO ]: Interpolant automaton has 11 states [2018-06-25 10:32:18,586 INFO ]: Constructing interpolant automaton starting with 11 interpolants. [2018-06-25 10:32:18,586 INFO ]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-06-25 10:32:18,586 INFO ]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2018-06-25 10:32:19,022 WARN ]: Spent 295.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2018-06-25 10:32:19,037 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:19,037 INFO ]: Finished difference Result 14 states and 14 transitions. [2018-06-25 10:32:19,037 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-06-25 10:32:19,037 INFO ]: Start accepts. Automaton has 11 states. Word has length 11 [2018-06-25 10:32:19,037 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:19,037 INFO ]: With dead ends: 14 [2018-06-25 10:32:19,037 INFO ]: Without dead ends: 14 [2018-06-25 10:32:19,037 INFO ]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-06-25 10:32:19,038 INFO ]: Start minimizeSevpa. Operand 14 states. [2018-06-25 10:32:19,039 INFO ]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-06-25 10:32:19,039 INFO ]: Start removeUnreachable. Operand 14 states. [2018-06-25 10:32:19,039 INFO ]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-06-25 10:32:19,039 INFO ]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-06-25 10:32:19,039 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:19,039 INFO ]: Abstraction has 14 states and 14 transitions. [2018-06-25 10:32:19,039 INFO ]: Interpolant automaton has 11 states. [2018-06-25 10:32:19,039 INFO ]: Start isEmpty. Operand 14 states and 14 transitions. [2018-06-25 10:32:19,040 INFO ]: Finished isEmpty. Found accepting run of length 14 [2018-06-25 10:32:19,040 INFO ]: Found error trace [2018-06-25 10:32:19,040 INFO ]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1] [2018-06-25 10:32:19,040 INFO ]: === Iteration 6 === [Ultimate.STARTErr0AssertViolationASSERT]=== [2018-06-25 10:32:19,040 INFO ]: Analyzing trace with hash 679342766, now seen corresponding path program 5 times [2018-06-25 10:32:19,040 INFO ]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-06-25 10:32:19,040 INFO ]: Using refinement strategy CamelRefinementStrategy [2018-06-25 10:32:19,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:19,041 INFO ]: Changing assertion order to NOT_INCREMENTALLY [2018-06-25 10:32:19,041 INFO ]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-06-25 10:32:19,123 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:20,051 WARN ]: Spent 362.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 52 [2018-06-25 10:32:20,548 WARN ]: Spent 413.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 50 [2018-06-25 10:32:20,927 WARN ]: Spent 353.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 49 [2018-06-25 10:32:21,210 WARN ]: Spent 209.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 42 [2018-06-25 10:32:21,347 INFO ]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-06-25 10:32:21,347 INFO ]: The current sequences of interpolants are not accepted, trying to find more. [2018-06-25 10:32:21,347 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 [2018-06-25 10:32:21,363 INFO ]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-06-25 10:32:21,439 INFO ]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2018-06-25 10:32:21,439 INFO ]: Conjunction of SSA is unsat [2018-06-25 10:32:21,445 INFO ]: Computing forward predicates... [2018-06-25 10:32:21,677 WARN ]: Spent 140.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2018-06-25 10:32:24,073 WARN ]: Spent 406.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 48 [2018-06-25 10:32:25,709 WARN ]: Spent 1.13 s on a formula simplification. DAG size of input: 212 DAG size of output: 62 [2018-06-25 10:32:27,430 WARN ]: Spent 1.24 s on a formula simplification. DAG size of input: 231 DAG size of output: 66 [2018-06-25 10:32:30,958 WARN ]: Spent 1.09 s on a formula simplification. DAG size of input: 211 DAG size of output: 48 [2018-06-25 10:32:30,961 INFO ]: Checked inductivity of 21 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-06-25 10:32:30,982 INFO ]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-06-25 10:32:30,982 INFO ]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2018-06-25 10:32:30,982 INFO ]: Interpolant automaton has 14 states [2018-06-25 10:32:30,983 INFO ]: Constructing interpolant automaton starting with 14 interpolants. [2018-06-25 10:32:30,983 INFO ]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-06-25 10:32:30,983 INFO ]: Start difference. First operand 14 states and 14 transitions. Second operand 14 states. [2018-06-25 10:32:31,027 INFO ]: Subtrahend was deterministic. Have not used determinization. [2018-06-25 10:32:31,027 INFO ]: Finished difference Result 10 states and 10 transitions. [2018-06-25 10:32:31,028 INFO ]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-06-25 10:32:31,028 INFO ]: Start accepts. Automaton has 14 states. Word has length 13 [2018-06-25 10:32:31,028 INFO ]: Finished accepts. some prefix is accepted. [2018-06-25 10:32:31,028 INFO ]: With dead ends: 10 [2018-06-25 10:32:31,028 INFO ]: Without dead ends: 0 [2018-06-25 10:32:31,028 INFO ]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-06-25 10:32:31,028 INFO ]: Start minimizeSevpa. Operand 0 states. [2018-06-25 10:32:31,028 INFO ]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-06-25 10:32:31,028 INFO ]: Start removeUnreachable. Operand 0 states. [2018-06-25 10:32:31,028 INFO ]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-06-25 10:32:31,028 INFO ]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-06-25 10:32:31,028 INFO ]: Finished accepts. word is rejected. [2018-06-25 10:32:31,028 INFO ]: Abstraction has 0 states and 0 transitions. [2018-06-25 10:32:31,028 INFO ]: Interpolant automaton has 14 states. [2018-06-25 10:32:31,028 INFO ]: Start isEmpty. Operand 0 states and 0 transitions. [2018-06-25 10:32:31,028 INFO ]: Finished isEmpty. No accepting run. [2018-06-25 10:32:31,033 INFO ]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.06 10:32:31 BoogieIcfgContainer [2018-06-25 10:32:31,033 INFO ]: ------------------------ END TraceAbstraction---------------------------- [2018-06-25 10:32:31,034 INFO ]: Toolchain (without parser) took 24486.07 ms. Allocated memory was 309.9 MB in the beginning and 606.6 MB in the end (delta: 296.7 MB). Free memory was 265.2 MB in the beginning and 491.3 MB in the end (delta: -226.1 MB). Peak memory consumption was 70.7 MB. Max. memory is 3.6 GB. [2018-06-25 10:32:31,035 INFO ]: SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. [2018-06-25 10:32:31,035 INFO ]: ChcToBoogie took 59.99 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:32:31,035 INFO ]: Boogie Preprocessor took 30.35 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 262.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:32:31,036 INFO ]: RCFGBuilder took 239.51 ms. Allocated memory is still 309.9 MB. Free memory was 262.2 MB in the beginning and 253.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. [2018-06-25 10:32:31,036 INFO ]: TraceAbstraction took 24138.15 ms. Allocated memory was 309.9 MB in the beginning and 606.6 MB in the end (delta: 296.7 MB). Free memory was 253.2 MB in the beginning and 491.3 MB in the end (delta: -238.1 MB). Peak memory consumption was 58.7 MB. Max. memory is 3.6 GB. [2018-06-25 10:32:31,041 INFO ]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * SmtParser took 0.07 ms. Allocated memory is still 309.9 MB. Free memory is still 275.3 MB. There was no memory consumed. Max. memory is 3.6 GB. * ChcToBoogie took 59.99 ms. Allocated memory is still 309.9 MB. Free memory was 265.2 MB in the beginning and 263.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 3.6 GB. * Boogie Preprocessor took 30.35 ms. Allocated memory is still 309.9 MB. Free memory was 263.2 MB in the beginning and 262.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 3.6 GB. * RCFGBuilder took 239.51 ms. Allocated memory is still 309.9 MB. Free memory was 262.2 MB in the beginning and 253.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 3.6 GB. * TraceAbstraction took 24138.15 ms. Allocated memory was 309.9 MB in the beginning and 606.6 MB in the end (delta: 296.7 MB). Free memory was 253.2 MB in the beginning and 491.3 MB in the end (delta: -238.1 MB). Peak memory consumption was 58.7 MB. Max. memory is 3.6 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [UNKNOWN] : assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 1 error locations. SAFE Result, 24.0s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 1 SDslu, 94 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 35497 SizeOfPredicates, 24 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 260 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 1/82 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inc_cas_prop2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-Benchmark-0-2018-06-25_10-32-31-052.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/inc_cas_prop2.smt2_AutomizerCHC_Goto.epf_AutomizerCHC.xml/Csv-TraceAbstractionBenchmarks-0-2018-06-25_10-32-31-052.csv Received shutdown request...