java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --rcfgbuilder.size.of.a.code.block SingleStatement -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 09:22:02,165 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:22:02,167 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:22:02,179 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:22:02,179 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:22:02,180 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:22:02,182 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:22:02,184 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:22:02,185 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:22:02,186 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:22:02,187 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:22:02,188 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:22:02,189 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:22:02,190 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:22:02,191 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:22:02,192 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:22:02,193 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:22:02,195 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:22:02,197 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:22:02,199 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:22:02,200 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:22:02,201 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:22:02,204 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:22:02,204 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:22:02,204 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:22:02,205 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:22:02,205 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:22:02,207 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:22:02,207 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:22:02,208 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:22:02,208 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:22:02,209 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:22:02,210 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 09:22:02,210 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 09:22:02,211 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 09:22:02,211 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 09:22:02,212 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 09:22:02,213 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 09:22:02,214 INFO L146 ILogger]: Finished resetting all preferences to default values... Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement [2019-05-23 09:22:02,252 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:22:02,263 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:22:02,272 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:22:02,274 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:22:02,274 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:22:02,276 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl [2019-05-23 09:22:02,276 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl' [2019-05-23 09:22:02,313 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:22:02,314 INFO L146 ILogger]: Walking toolchain with 4 elements. [2019-05-23 09:22:02,315 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:22:02,315 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:22:02,315 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:22:02,331 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,342 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,348 WARN L146 ILogger]: Program contained no entry procedure! [2019-05-23 09:22:02,348 WARN L146 ILogger]: Missing entry procedures: [ULTIMATE.start] [2019-05-23 09:22:02,349 WARN L146 ILogger]: Fallback enabled. All procedures will be processed. [2019-05-23 09:22:02,351 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:22:02,352 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:22:02,352 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:22:02,352 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:22:02,363 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,363 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,364 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,364 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,368 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,372 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,373 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... [2019-05-23 09:22:02,374 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:22:02,375 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:22:02,375 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:22:02,376 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:22:02,376 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -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:4096 -smt2 -in -t:12000 [2019-05-23 09:22:02,438 INFO L146 ILogger]: Found specification of procedure main [2019-05-23 09:22:02,438 INFO L146 ILogger]: Found implementation of procedure main [2019-05-23 09:22:02,684 INFO L146 ILogger]: Using library mode [2019-05-23 09:22:02,685 INFO L146 ILogger]: Removed 0 assume(true) statements. [2019-05-23 09:22:02,686 INFO L146 ILogger]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:22:02 BoogieIcfgContainer [2019-05-23 09:22:02,686 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:22:02,690 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:22:02,691 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:22:02,696 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:22:02,696 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:22:02" (1/2) ... [2019-05-23 09:22:02,698 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221c40ac and model type codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:22:02, skipping insertion in model container [2019-05-23 09:22:02,698 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:22:02" (2/2) ... [2019-05-23 09:22:02,701 INFO L146 ILogger]: Analyzing ICFG codeblockAssertOrder01.bpl [2019-05-23 09:22:02,710 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:22:02,722 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:22:02,739 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:22:02,771 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:22:02,772 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:22:02,772 INFO L146 ILogger]: Hoare is false [2019-05-23 09:22:02,772 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:22:02,772 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:22:02,772 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:22:02,773 INFO L146 ILogger]: Difference is false [2019-05-23 09:22:02,773 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:22:02,774 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:22:02,789 INFO L146 ILogger]: Start isEmpty. Operand 10 states. [2019-05-23 09:22:02,796 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 7 [2019-05-23 09:22:02,797 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:02,797 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1] [2019-05-23 09:22:02,800 INFO L146 ILogger]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:02,806 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:02,807 INFO L146 ILogger]: Analyzing trace with hash 894215626, now seen corresponding path program 1 times [2019-05-23 09:22:02,852 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:02,878 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:02,882 INFO L146 ILogger]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 09:22:02,886 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:02,940 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:02,943 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:22:02,944 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 09:22:02,948 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:22:02,963 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:22:02,964 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:22:02,966 INFO L146 ILogger]: Start difference. First operand 10 states. Second operand 3 states. [2019-05-23 09:22:03,029 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:03,030 INFO L146 ILogger]: Finished difference Result 12 states and 12 transitions. [2019-05-23 09:22:03,030 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:22:03,032 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 6 [2019-05-23 09:22:03,032 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:03,043 INFO L146 ILogger]: With dead ends: 12 [2019-05-23 09:22:03,043 INFO L146 ILogger]: Without dead ends: 10 [2019-05-23 09:22:03,045 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:22:03,070 INFO L146 ILogger]: Start minimizeSevpa. Operand 10 states. [2019-05-23 09:22:03,089 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-05-23 09:22:03,092 INFO L146 ILogger]: Start removeUnreachable. Operand 9 states. [2019-05-23 09:22:03,093 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-05-23 09:22:03,095 INFO L146 ILogger]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-05-23 09:22:03,095 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:03,095 INFO L146 ILogger]: Abstraction has 9 states and 9 transitions. [2019-05-23 09:22:03,096 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:22:03,096 INFO L146 ILogger]: Start isEmpty. Operand 9 states and 9 transitions. [2019-05-23 09:22:03,097 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 9 [2019-05-23 09:22:03,097 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:03,097 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:03,098 INFO L146 ILogger]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:03,098 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:03,099 INFO L146 ILogger]: Analyzing trace with hash 1892417961, now seen corresponding path program 1 times [2019-05-23 09:22:03,102 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:03,123 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:03,124 INFO L146 ILogger]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 09:22:03,128 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:03,210 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:03,210 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:03,211 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-05-23 09:22:03,213 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:22:03,213 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:22:03,214 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:22:03,214 INFO L146 ILogger]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-05-23 09:22:03,273 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:03,274 INFO L146 ILogger]: Finished difference Result 12 states and 12 transitions. [2019-05-23 09:22:03,274 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:22:03,275 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 8 [2019-05-23 09:22:03,275 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:03,275 INFO L146 ILogger]: With dead ends: 12 [2019-05-23 09:22:03,276 INFO L146 ILogger]: Without dead ends: 12 [2019-05-23 09:22:03,277 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:22:03,277 INFO L146 ILogger]: Start minimizeSevpa. Operand 12 states. [2019-05-23 09:22:03,279 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-05-23 09:22:03,279 INFO L146 ILogger]: Start removeUnreachable. Operand 11 states. [2019-05-23 09:22:03,280 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-05-23 09:22:03,280 INFO L146 ILogger]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-05-23 09:22:03,281 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:03,281 INFO L146 ILogger]: Abstraction has 11 states and 11 transitions. [2019-05-23 09:22:03,281 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:22:03,281 INFO L146 ILogger]: Start isEmpty. Operand 11 states and 11 transitions. [2019-05-23 09:22:03,282 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 11 [2019-05-23 09:22:03,282 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:03,282 INFO L146 ILogger]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:03,283 INFO L146 ILogger]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:03,283 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:03,283 INFO L146 ILogger]: Analyzing trace with hash -907812408, now seen corresponding path program 2 times [2019-05-23 09:22:03,284 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:03,297 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:03,299 INFO L146 ILogger]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 09:22:03,300 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:03,375 INFO L146 ILogger]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:03,375 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:03,375 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-05-23 09:22:03,376 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 09:22:03,376 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 09:22:03,377 INFO L146 ILogger]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 09:22:03,377 INFO L146 ILogger]: Start difference. First operand 11 states and 11 transitions. Second operand 5 states. [2019-05-23 09:22:03,467 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:03,467 INFO L146 ILogger]: Finished difference Result 14 states and 14 transitions. [2019-05-23 09:22:03,468 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 09:22:03,468 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 10 [2019-05-23 09:22:03,468 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:03,469 INFO L146 ILogger]: With dead ends: 14 [2019-05-23 09:22:03,469 INFO L146 ILogger]: Without dead ends: 14 [2019-05-23 09:22:03,470 INFO L146 ILogger]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-05-23 09:22:03,470 INFO L146 ILogger]: Start minimizeSevpa. Operand 14 states. [2019-05-23 09:22:03,472 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-05-23 09:22:03,472 INFO L146 ILogger]: Start removeUnreachable. Operand 13 states. [2019-05-23 09:22:03,473 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-05-23 09:22:03,473 INFO L146 ILogger]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-05-23 09:22:03,473 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:03,473 INFO L146 ILogger]: Abstraction has 13 states and 13 transitions. [2019-05-23 09:22:03,474 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 09:22:03,474 INFO L146 ILogger]: Start isEmpty. Operand 13 states and 13 transitions. [2019-05-23 09:22:03,474 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 13 [2019-05-23 09:22:03,475 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:03,475 INFO L146 ILogger]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:03,475 INFO L146 ILogger]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:03,475 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:03,476 INFO L146 ILogger]: Analyzing trace with hash 1015297575, now seen corresponding path program 3 times [2019-05-23 09:22:03,477 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:03,487 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:03,488 INFO L146 ILogger]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2019-05-23 09:22:03,489 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:03,557 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:03,558 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:03,558 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-05-23 09:22:03,558 INFO L146 ILogger]: Interpolant automaton has 6 states [2019-05-23 09:22:03,559 INFO L146 ILogger]: Constructing interpolant automaton starting with 6 interpolants. [2019-05-23 09:22:03,559 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 09:22:03,560 INFO L146 ILogger]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2019-05-23 09:22:03,595 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:03,596 INFO L146 ILogger]: Finished difference Result 16 states and 16 transitions. [2019-05-23 09:22:03,599 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-05-23 09:22:03,599 INFO L146 ILogger]: Start accepts. Automaton has 6 states. Word has length 12 [2019-05-23 09:22:03,600 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:03,600 INFO L146 ILogger]: With dead ends: 16 [2019-05-23 09:22:03,600 INFO L146 ILogger]: Without dead ends: 16 [2019-05-23 09:22:03,601 INFO L146 ILogger]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-05-23 09:22:03,601 INFO L146 ILogger]: Start minimizeSevpa. Operand 16 states. [2019-05-23 09:22:03,603 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-05-23 09:22:03,603 INFO L146 ILogger]: Start removeUnreachable. Operand 15 states. [2019-05-23 09:22:03,604 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-05-23 09:22:03,604 INFO L146 ILogger]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2019-05-23 09:22:03,614 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:03,614 INFO L146 ILogger]: Abstraction has 15 states and 15 transitions. [2019-05-23 09:22:03,615 INFO L146 ILogger]: Interpolant automaton has 6 states. [2019-05-23 09:22:03,615 INFO L146 ILogger]: Start isEmpty. Operand 15 states and 15 transitions. [2019-05-23 09:22:03,615 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 15 [2019-05-23 09:22:03,615 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:03,615 INFO L146 ILogger]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:03,616 INFO L146 ILogger]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:03,616 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:03,616 INFO L146 ILogger]: Analyzing trace with hash -2006913338, now seen corresponding path program 4 times [2019-05-23 09:22:03,617 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:03,628 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:03,629 INFO L146 ILogger]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 09:22:03,630 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:03,800 INFO L146 ILogger]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:03,804 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:03,804 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-05-23 09:22:03,805 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 09:22:03,805 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 09:22:03,805 INFO L146 ILogger]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 09:22:03,806 INFO L146 ILogger]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2019-05-23 09:22:03,975 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:03,976 INFO L146 ILogger]: Finished difference Result 18 states and 18 transitions. [2019-05-23 09:22:03,976 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-05-23 09:22:03,976 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 14 [2019-05-23 09:22:03,977 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:03,977 INFO L146 ILogger]: With dead ends: 18 [2019-05-23 09:22:03,977 INFO L146 ILogger]: Without dead ends: 18 [2019-05-23 09:22:03,978 INFO L146 ILogger]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-05-23 09:22:03,978 INFO L146 ILogger]: Start minimizeSevpa. Operand 18 states. [2019-05-23 09:22:03,980 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-05-23 09:22:03,980 INFO L146 ILogger]: Start removeUnreachable. Operand 17 states. [2019-05-23 09:22:03,981 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-05-23 09:22:03,981 INFO L146 ILogger]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2019-05-23 09:22:03,981 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:03,981 INFO L146 ILogger]: Abstraction has 17 states and 17 transitions. [2019-05-23 09:22:03,981 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 09:22:03,982 INFO L146 ILogger]: Start isEmpty. Operand 17 states and 17 transitions. [2019-05-23 09:22:03,982 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 17 [2019-05-23 09:22:03,982 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:03,982 INFO L146 ILogger]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:03,983 INFO L146 ILogger]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:03,983 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:03,983 INFO L146 ILogger]: Analyzing trace with hash 1341258661, now seen corresponding path program 5 times [2019-05-23 09:22:03,984 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:03,995 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:03,996 INFO L146 ILogger]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2019-05-23 09:22:03,997 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:04,176 INFO L146 ILogger]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:04,176 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:04,177 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 09:22:04,177 INFO L146 ILogger]: Interpolant automaton has 8 states [2019-05-23 09:22:04,178 INFO L146 ILogger]: Constructing interpolant automaton starting with 8 interpolants. [2019-05-23 09:22:04,178 INFO L146 ILogger]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 09:22:04,179 INFO L146 ILogger]: Start difference. First operand 17 states and 17 transitions. Second operand 8 states. [2019-05-23 09:22:04,303 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:04,303 INFO L146 ILogger]: Finished difference Result 20 states and 20 transitions. [2019-05-23 09:22:04,303 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 09:22:04,304 INFO L146 ILogger]: Start accepts. Automaton has 8 states. Word has length 16 [2019-05-23 09:22:04,304 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:04,304 INFO L146 ILogger]: With dead ends: 20 [2019-05-23 09:22:04,305 INFO L146 ILogger]: Without dead ends: 20 [2019-05-23 09:22:04,305 INFO L146 ILogger]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-05-23 09:22:04,306 INFO L146 ILogger]: Start minimizeSevpa. Operand 20 states. [2019-05-23 09:22:04,308 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-05-23 09:22:04,308 INFO L146 ILogger]: Start removeUnreachable. Operand 19 states. [2019-05-23 09:22:04,309 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-05-23 09:22:04,309 INFO L146 ILogger]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2019-05-23 09:22:04,309 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:04,309 INFO L146 ILogger]: Abstraction has 19 states and 19 transitions. [2019-05-23 09:22:04,310 INFO L146 ILogger]: Interpolant automaton has 8 states. [2019-05-23 09:22:04,310 INFO L146 ILogger]: Start isEmpty. Operand 19 states and 19 transitions. [2019-05-23 09:22:04,310 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 19 [2019-05-23 09:22:04,310 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:04,311 INFO L146 ILogger]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:04,311 INFO L146 ILogger]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:04,312 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:04,312 INFO L146 ILogger]: Analyzing trace with hash 2004044996, now seen corresponding path program 6 times [2019-05-23 09:22:04,313 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:04,325 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:04,326 INFO L146 ILogger]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 09:22:04,328 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:04,484 INFO L146 ILogger]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:04,485 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:04,485 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-05-23 09:22:04,486 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 09:22:04,486 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 09:22:04,486 INFO L146 ILogger]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 09:22:04,487 INFO L146 ILogger]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2019-05-23 09:22:04,542 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:04,543 INFO L146 ILogger]: Finished difference Result 22 states and 22 transitions. [2019-05-23 09:22:04,543 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-05-23 09:22:04,543 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 18 [2019-05-23 09:22:04,544 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:04,544 INFO L146 ILogger]: With dead ends: 22 [2019-05-23 09:22:04,545 INFO L146 ILogger]: Without dead ends: 22 [2019-05-23 09:22:04,546 INFO L146 ILogger]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2019-05-23 09:22:04,546 INFO L146 ILogger]: Start minimizeSevpa. Operand 22 states. [2019-05-23 09:22:04,548 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 22 to 21. [2019-05-23 09:22:04,548 INFO L146 ILogger]: Start removeUnreachable. Operand 21 states. [2019-05-23 09:22:04,549 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-05-23 09:22:04,549 INFO L146 ILogger]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2019-05-23 09:22:04,549 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:04,549 INFO L146 ILogger]: Abstraction has 21 states and 21 transitions. [2019-05-23 09:22:04,549 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 09:22:04,549 INFO L146 ILogger]: Start isEmpty. Operand 21 states and 21 transitions. [2019-05-23 09:22:04,550 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 09:22:04,550 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:04,550 INFO L146 ILogger]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:04,550 INFO L146 ILogger]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:04,551 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:04,551 INFO L146 ILogger]: Analyzing trace with hash -1008414173, now seen corresponding path program 7 times [2019-05-23 09:22:04,552 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:04,565 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:04,566 INFO L146 ILogger]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2019-05-23 09:22:04,568 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:04,796 INFO L146 ILogger]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:04,796 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:04,797 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 09:22:04,797 INFO L146 ILogger]: Interpolant automaton has 10 states [2019-05-23 09:22:04,797 INFO L146 ILogger]: Constructing interpolant automaton starting with 10 interpolants. [2019-05-23 09:22:04,798 INFO L146 ILogger]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-05-23 09:22:04,798 INFO L146 ILogger]: Start difference. First operand 21 states and 21 transitions. Second operand 10 states. [2019-05-23 09:22:05,017 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:05,017 INFO L146 ILogger]: Finished difference Result 24 states and 24 transitions. [2019-05-23 09:22:05,018 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-05-23 09:22:05,018 INFO L146 ILogger]: Start accepts. Automaton has 10 states. Word has length 20 [2019-05-23 09:22:05,018 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:05,019 INFO L146 ILogger]: With dead ends: 24 [2019-05-23 09:22:05,019 INFO L146 ILogger]: Without dead ends: 24 [2019-05-23 09:22:05,019 INFO L146 ILogger]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2019-05-23 09:22:05,020 INFO L146 ILogger]: Start minimizeSevpa. Operand 24 states. [2019-05-23 09:22:05,022 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-05-23 09:22:05,022 INFO L146 ILogger]: Start removeUnreachable. Operand 23 states. [2019-05-23 09:22:05,022 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-05-23 09:22:05,023 INFO L146 ILogger]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 20 [2019-05-23 09:22:05,023 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:05,023 INFO L146 ILogger]: Abstraction has 23 states and 23 transitions. [2019-05-23 09:22:05,023 INFO L146 ILogger]: Interpolant automaton has 10 states. [2019-05-23 09:22:05,023 INFO L146 ILogger]: Start isEmpty. Operand 23 states and 23 transitions. [2019-05-23 09:22:05,024 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 23 [2019-05-23 09:22:05,024 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:05,024 INFO L146 ILogger]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:05,024 INFO L146 ILogger]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:05,025 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:05,025 INFO L146 ILogger]: Analyzing trace with hash -1173718078, now seen corresponding path program 8 times [2019-05-23 09:22:05,026 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:05,039 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:05,040 INFO L146 ILogger]: Trace formula consists of 35 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 09:22:05,042 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:05,182 INFO L146 ILogger]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:05,183 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:05,183 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-05-23 09:22:05,183 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 09:22:05,184 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 09:22:05,184 INFO L146 ILogger]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-05-23 09:22:05,184 INFO L146 ILogger]: Start difference. First operand 23 states and 23 transitions. Second operand 11 states. [2019-05-23 09:22:05,241 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:05,241 INFO L146 ILogger]: Finished difference Result 26 states and 26 transitions. [2019-05-23 09:22:05,242 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 09:22:05,242 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 22 [2019-05-23 09:22:05,243 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:05,243 INFO L146 ILogger]: With dead ends: 26 [2019-05-23 09:22:05,244 INFO L146 ILogger]: Without dead ends: 26 [2019-05-23 09:22:05,244 INFO L146 ILogger]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2019-05-23 09:22:05,244 INFO L146 ILogger]: Start minimizeSevpa. Operand 26 states. [2019-05-23 09:22:05,246 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-05-23 09:22:05,246 INFO L146 ILogger]: Start removeUnreachable. Operand 25 states. [2019-05-23 09:22:05,247 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2019-05-23 09:22:05,247 INFO L146 ILogger]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 22 [2019-05-23 09:22:05,247 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:05,248 INFO L146 ILogger]: Abstraction has 25 states and 25 transitions. [2019-05-23 09:22:05,248 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 09:22:05,248 INFO L146 ILogger]: Start isEmpty. Operand 25 states and 25 transitions. [2019-05-23 09:22:05,248 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 25 [2019-05-23 09:22:05,248 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:05,249 INFO L146 ILogger]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:05,249 INFO L146 ILogger]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:05,249 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:05,249 INFO L146 ILogger]: Analyzing trace with hash -1116980831, now seen corresponding path program 9 times [2019-05-23 09:22:05,250 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:05,263 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:05,265 INFO L146 ILogger]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2019-05-23 09:22:05,266 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:05,438 INFO L146 ILogger]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:05,438 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:05,439 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 09:22:05,439 INFO L146 ILogger]: Interpolant automaton has 12 states [2019-05-23 09:22:05,439 INFO L146 ILogger]: Constructing interpolant automaton starting with 12 interpolants. [2019-05-23 09:22:05,440 INFO L146 ILogger]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 09:22:05,440 INFO L146 ILogger]: Start difference. First operand 25 states and 25 transitions. Second operand 12 states. [2019-05-23 09:22:05,526 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:05,526 INFO L146 ILogger]: Finished difference Result 28 states and 28 transitions. [2019-05-23 09:22:05,527 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-05-23 09:22:05,527 INFO L146 ILogger]: Start accepts. Automaton has 12 states. Word has length 24 [2019-05-23 09:22:05,527 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:05,528 INFO L146 ILogger]: With dead ends: 28 [2019-05-23 09:22:05,528 INFO L146 ILogger]: Without dead ends: 28 [2019-05-23 09:22:05,529 INFO L146 ILogger]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-05-23 09:22:05,529 INFO L146 ILogger]: Start minimizeSevpa. Operand 28 states. [2019-05-23 09:22:05,532 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 28 to 27. [2019-05-23 09:22:05,532 INFO L146 ILogger]: Start removeUnreachable. Operand 27 states. [2019-05-23 09:22:05,533 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-05-23 09:22:05,533 INFO L146 ILogger]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 24 [2019-05-23 09:22:05,533 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:05,534 INFO L146 ILogger]: Abstraction has 27 states and 27 transitions. [2019-05-23 09:22:05,534 INFO L146 ILogger]: Interpolant automaton has 12 states. [2019-05-23 09:22:05,534 INFO L146 ILogger]: Start isEmpty. Operand 27 states and 27 transitions. [2019-05-23 09:22:05,535 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 27 [2019-05-23 09:22:05,535 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:05,535 INFO L146 ILogger]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:05,535 INFO L146 ILogger]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:05,535 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:05,536 INFO L146 ILogger]: Analyzing trace with hash 1867905984, now seen corresponding path program 10 times [2019-05-23 09:22:05,536 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:05,557 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:05,558 INFO L146 ILogger]: Trace formula consists of 41 conjuncts, 12 conjunts are in the unsatisfiable core [2019-05-23 09:22:05,562 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:05,881 INFO L146 ILogger]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:05,881 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:05,882 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2019-05-23 09:22:05,882 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 09:22:05,882 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 09:22:05,883 INFO L146 ILogger]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 09:22:05,883 INFO L146 ILogger]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states. [2019-05-23 09:22:05,986 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:05,987 INFO L146 ILogger]: Finished difference Result 30 states and 30 transitions. [2019-05-23 09:22:05,987 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-05-23 09:22:05,987 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 26 [2019-05-23 09:22:05,988 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:05,988 INFO L146 ILogger]: With dead ends: 30 [2019-05-23 09:22:05,988 INFO L146 ILogger]: Without dead ends: 30 [2019-05-23 09:22:05,988 INFO L146 ILogger]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2019-05-23 09:22:05,989 INFO L146 ILogger]: Start minimizeSevpa. Operand 30 states. [2019-05-23 09:22:05,995 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 30 to 29. [2019-05-23 09:22:05,995 INFO L146 ILogger]: Start removeUnreachable. Operand 29 states. [2019-05-23 09:22:05,996 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-05-23 09:22:05,996 INFO L146 ILogger]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 26 [2019-05-23 09:22:05,996 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:05,997 INFO L146 ILogger]: Abstraction has 29 states and 29 transitions. [2019-05-23 09:22:05,999 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 09:22:05,999 INFO L146 ILogger]: Start isEmpty. Operand 29 states and 29 transitions. [2019-05-23 09:22:05,999 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 29 [2019-05-23 09:22:06,000 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:06,000 INFO L146 ILogger]: trace histogram [11, 11, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:06,001 INFO L146 ILogger]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:06,001 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:06,001 INFO L146 ILogger]: Analyzing trace with hash 1305981471, now seen corresponding path program 11 times [2019-05-23 09:22:06,002 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:06,021 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:06,022 INFO L146 ILogger]: Trace formula consists of 44 conjuncts, 13 conjunts are in the unsatisfiable core [2019-05-23 09:22:06,025 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:06,207 INFO L146 ILogger]: Checked inductivity of 121 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:06,207 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:06,207 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 09:22:06,208 INFO L146 ILogger]: Interpolant automaton has 14 states [2019-05-23 09:22:06,208 INFO L146 ILogger]: Constructing interpolant automaton starting with 14 interpolants. [2019-05-23 09:22:06,209 INFO L146 ILogger]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 09:22:06,209 INFO L146 ILogger]: Start difference. First operand 29 states and 29 transitions. Second operand 14 states. [2019-05-23 09:22:06,486 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:06,486 INFO L146 ILogger]: Finished difference Result 32 states and 32 transitions. [2019-05-23 09:22:06,487 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 09:22:06,487 INFO L146 ILogger]: Start accepts. Automaton has 14 states. Word has length 28 [2019-05-23 09:22:06,487 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:06,487 INFO L146 ILogger]: With dead ends: 32 [2019-05-23 09:22:06,487 INFO L146 ILogger]: Without dead ends: 32 [2019-05-23 09:22:06,488 INFO L146 ILogger]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2019-05-23 09:22:06,488 INFO L146 ILogger]: Start minimizeSevpa. Operand 32 states. [2019-05-23 09:22:06,490 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-05-23 09:22:06,490 INFO L146 ILogger]: Start removeUnreachable. Operand 31 states. [2019-05-23 09:22:06,491 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-05-23 09:22:06,491 INFO L146 ILogger]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 28 [2019-05-23 09:22:06,492 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:06,492 INFO L146 ILogger]: Abstraction has 31 states and 31 transitions. [2019-05-23 09:22:06,492 INFO L146 ILogger]: Interpolant automaton has 14 states. [2019-05-23 09:22:06,492 INFO L146 ILogger]: Start isEmpty. Operand 31 states and 31 transitions. [2019-05-23 09:22:06,493 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 31 [2019-05-23 09:22:06,493 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:06,493 INFO L146 ILogger]: trace histogram [12, 12, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:06,493 INFO L146 ILogger]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:06,493 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:06,494 INFO L146 ILogger]: Analyzing trace with hash -1832563522, now seen corresponding path program 12 times [2019-05-23 09:22:06,494 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:06,506 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:06,507 INFO L146 ILogger]: Trace formula consists of 47 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 09:22:06,509 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:06,682 INFO L146 ILogger]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:06,682 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:06,682 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2019-05-23 09:22:06,682 INFO L146 ILogger]: Interpolant automaton has 15 states [2019-05-23 09:22:06,683 INFO L146 ILogger]: Constructing interpolant automaton starting with 15 interpolants. [2019-05-23 09:22:06,683 INFO L146 ILogger]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 09:22:06,683 INFO L146 ILogger]: Start difference. First operand 31 states and 31 transitions. Second operand 15 states. [2019-05-23 09:22:06,762 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:06,762 INFO L146 ILogger]: Finished difference Result 34 states and 34 transitions. [2019-05-23 09:22:06,762 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-05-23 09:22:06,763 INFO L146 ILogger]: Start accepts. Automaton has 15 states. Word has length 30 [2019-05-23 09:22:06,763 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:06,764 INFO L146 ILogger]: With dead ends: 34 [2019-05-23 09:22:06,764 INFO L146 ILogger]: Without dead ends: 34 [2019-05-23 09:22:06,765 INFO L146 ILogger]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2019-05-23 09:22:06,765 INFO L146 ILogger]: Start minimizeSevpa. Operand 34 states. [2019-05-23 09:22:06,767 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 34 to 33. [2019-05-23 09:22:06,767 INFO L146 ILogger]: Start removeUnreachable. Operand 33 states. [2019-05-23 09:22:06,768 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2019-05-23 09:22:06,768 INFO L146 ILogger]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 30 [2019-05-23 09:22:06,768 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:06,768 INFO L146 ILogger]: Abstraction has 33 states and 33 transitions. [2019-05-23 09:22:06,768 INFO L146 ILogger]: Interpolant automaton has 15 states. [2019-05-23 09:22:06,768 INFO L146 ILogger]: Start isEmpty. Operand 33 states and 33 transitions. [2019-05-23 09:22:06,769 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 33 [2019-05-23 09:22:06,769 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:06,769 INFO L146 ILogger]: trace histogram [13, 13, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:06,770 INFO L146 ILogger]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:06,770 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:06,770 INFO L146 ILogger]: Analyzing trace with hash 1387707293, now seen corresponding path program 13 times [2019-05-23 09:22:06,771 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:06,783 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:06,784 INFO L146 ILogger]: Trace formula consists of 50 conjuncts, 15 conjunts are in the unsatisfiable core [2019-05-23 09:22:06,786 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:06,977 INFO L146 ILogger]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:06,978 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:06,978 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2019-05-23 09:22:06,978 INFO L146 ILogger]: Interpolant automaton has 16 states [2019-05-23 09:22:06,979 INFO L146 ILogger]: Constructing interpolant automaton starting with 16 interpolants. [2019-05-23 09:22:06,979 INFO L146 ILogger]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-05-23 09:22:06,979 INFO L146 ILogger]: Start difference. First operand 33 states and 33 transitions. Second operand 16 states. [2019-05-23 09:22:07,024 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:07,024 INFO L146 ILogger]: Finished difference Result 36 states and 36 transitions. [2019-05-23 09:22:07,025 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-05-23 09:22:07,025 INFO L146 ILogger]: Start accepts. Automaton has 16 states. Word has length 32 [2019-05-23 09:22:07,026 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:07,026 INFO L146 ILogger]: With dead ends: 36 [2019-05-23 09:22:07,026 INFO L146 ILogger]: Without dead ends: 36 [2019-05-23 09:22:07,027 INFO L146 ILogger]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2019-05-23 09:22:07,027 INFO L146 ILogger]: Start minimizeSevpa. Operand 36 states. [2019-05-23 09:22:07,029 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-05-23 09:22:07,029 INFO L146 ILogger]: Start removeUnreachable. Operand 35 states. [2019-05-23 09:22:07,029 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2019-05-23 09:22:07,029 INFO L146 ILogger]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 32 [2019-05-23 09:22:07,029 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:07,030 INFO L146 ILogger]: Abstraction has 35 states and 35 transitions. [2019-05-23 09:22:07,030 INFO L146 ILogger]: Interpolant automaton has 16 states. [2019-05-23 09:22:07,030 INFO L146 ILogger]: Start isEmpty. Operand 35 states and 35 transitions. [2019-05-23 09:22:07,030 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 35 [2019-05-23 09:22:07,030 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:07,030 INFO L146 ILogger]: trace histogram [14, 14, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:07,031 INFO L146 ILogger]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:07,031 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:07,031 INFO L146 ILogger]: Analyzing trace with hash -603459908, now seen corresponding path program 14 times [2019-05-23 09:22:07,032 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:07,043 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:07,045 INFO L146 ILogger]: Trace formula consists of 53 conjuncts, 16 conjunts are in the unsatisfiable core [2019-05-23 09:22:07,046 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:07,220 INFO L146 ILogger]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:07,221 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:07,221 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2019-05-23 09:22:07,222 INFO L146 ILogger]: Interpolant automaton has 17 states [2019-05-23 09:22:07,222 INFO L146 ILogger]: Constructing interpolant automaton starting with 17 interpolants. [2019-05-23 09:22:07,222 INFO L146 ILogger]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-05-23 09:22:07,222 INFO L146 ILogger]: Start difference. First operand 35 states and 35 transitions. Second operand 17 states. [2019-05-23 09:22:07,308 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:07,308 INFO L146 ILogger]: Finished difference Result 38 states and 38 transitions. [2019-05-23 09:22:07,309 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 09:22:07,309 INFO L146 ILogger]: Start accepts. Automaton has 17 states. Word has length 34 [2019-05-23 09:22:07,309 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:07,310 INFO L146 ILogger]: With dead ends: 38 [2019-05-23 09:22:07,310 INFO L146 ILogger]: Without dead ends: 38 [2019-05-23 09:22:07,311 INFO L146 ILogger]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2019-05-23 09:22:07,311 INFO L146 ILogger]: Start minimizeSevpa. Operand 38 states. [2019-05-23 09:22:07,314 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 38 to 37. [2019-05-23 09:22:07,314 INFO L146 ILogger]: Start removeUnreachable. Operand 37 states. [2019-05-23 09:22:07,315 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-05-23 09:22:07,315 INFO L146 ILogger]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 34 [2019-05-23 09:22:07,315 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:07,315 INFO L146 ILogger]: Abstraction has 37 states and 37 transitions. [2019-05-23 09:22:07,316 INFO L146 ILogger]: Interpolant automaton has 17 states. [2019-05-23 09:22:07,316 INFO L146 ILogger]: Start isEmpty. Operand 37 states and 37 transitions. [2019-05-23 09:22:07,316 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 37 [2019-05-23 09:22:07,316 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:07,316 INFO L146 ILogger]: trace histogram [15, 15, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:07,317 INFO L146 ILogger]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:07,317 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:07,317 INFO L146 ILogger]: Analyzing trace with hash 1440273947, now seen corresponding path program 15 times [2019-05-23 09:22:07,318 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:07,329 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:07,331 INFO L146 ILogger]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2019-05-23 09:22:07,332 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:07,663 INFO L146 ILogger]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:07,663 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:07,664 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2019-05-23 09:22:07,664 INFO L146 ILogger]: Interpolant automaton has 18 states [2019-05-23 09:22:07,664 INFO L146 ILogger]: Constructing interpolant automaton starting with 18 interpolants. [2019-05-23 09:22:07,664 INFO L146 ILogger]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-05-23 09:22:07,665 INFO L146 ILogger]: Start difference. First operand 37 states and 37 transitions. Second operand 18 states. [2019-05-23 09:22:07,718 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:07,718 INFO L146 ILogger]: Finished difference Result 40 states and 40 transitions. [2019-05-23 09:22:07,718 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-05-23 09:22:07,718 INFO L146 ILogger]: Start accepts. Automaton has 18 states. Word has length 36 [2019-05-23 09:22:07,719 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:07,719 INFO L146 ILogger]: With dead ends: 40 [2019-05-23 09:22:07,719 INFO L146 ILogger]: Without dead ends: 40 [2019-05-23 09:22:07,720 INFO L146 ILogger]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2019-05-23 09:22:07,720 INFO L146 ILogger]: Start minimizeSevpa. Operand 40 states. [2019-05-23 09:22:07,722 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-05-23 09:22:07,722 INFO L146 ILogger]: Start removeUnreachable. Operand 39 states. [2019-05-23 09:22:07,723 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2019-05-23 09:22:07,724 INFO L146 ILogger]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 36 [2019-05-23 09:22:07,724 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:07,724 INFO L146 ILogger]: Abstraction has 39 states and 39 transitions. [2019-05-23 09:22:07,724 INFO L146 ILogger]: Interpolant automaton has 18 states. [2019-05-23 09:22:07,724 INFO L146 ILogger]: Start isEmpty. Operand 39 states and 39 transitions. [2019-05-23 09:22:07,725 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 39 [2019-05-23 09:22:07,725 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:07,725 INFO L146 ILogger]: trace histogram [16, 16, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:07,725 INFO L146 ILogger]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:07,726 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:07,726 INFO L146 ILogger]: Analyzing trace with hash -1626512966, now seen corresponding path program 16 times [2019-05-23 09:22:07,727 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:07,738 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:07,739 INFO L146 ILogger]: Trace formula consists of 59 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 09:22:07,741 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:07,933 INFO L146 ILogger]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:07,934 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:07,934 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2019-05-23 09:22:07,935 INFO L146 ILogger]: Interpolant automaton has 19 states [2019-05-23 09:22:07,935 INFO L146 ILogger]: Constructing interpolant automaton starting with 19 interpolants. [2019-05-23 09:22:07,935 INFO L146 ILogger]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-05-23 09:22:07,936 INFO L146 ILogger]: Start difference. First operand 39 states and 39 transitions. Second operand 19 states. [2019-05-23 09:22:08,001 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:08,001 INFO L146 ILogger]: Finished difference Result 42 states and 42 transitions. [2019-05-23 09:22:08,008 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-05-23 09:22:08,008 INFO L146 ILogger]: Start accepts. Automaton has 19 states. Word has length 38 [2019-05-23 09:22:08,008 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:08,009 INFO L146 ILogger]: With dead ends: 42 [2019-05-23 09:22:08,009 INFO L146 ILogger]: Without dead ends: 42 [2019-05-23 09:22:08,009 INFO L146 ILogger]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2019-05-23 09:22:08,010 INFO L146 ILogger]: Start minimizeSevpa. Operand 42 states. [2019-05-23 09:22:08,012 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 42 to 41. [2019-05-23 09:22:08,012 INFO L146 ILogger]: Start removeUnreachable. Operand 41 states. [2019-05-23 09:22:08,012 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2019-05-23 09:22:08,012 INFO L146 ILogger]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 38 [2019-05-23 09:22:08,013 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:08,013 INFO L146 ILogger]: Abstraction has 41 states and 41 transitions. [2019-05-23 09:22:08,013 INFO L146 ILogger]: Interpolant automaton has 19 states. [2019-05-23 09:22:08,013 INFO L146 ILogger]: Start isEmpty. Operand 41 states and 41 transitions. [2019-05-23 09:22:08,014 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 41 [2019-05-23 09:22:08,014 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:08,014 INFO L146 ILogger]: trace histogram [17, 17, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:08,014 INFO L146 ILogger]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:08,014 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:08,015 INFO L146 ILogger]: Analyzing trace with hash 1833795993, now seen corresponding path program 17 times [2019-05-23 09:22:08,015 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:08,030 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:08,035 INFO L146 ILogger]: Trace formula consists of 62 conjuncts, 19 conjunts are in the unsatisfiable core [2019-05-23 09:22:08,038 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:08,536 INFO L146 ILogger]: Checked inductivity of 289 backedges. 0 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:08,536 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:08,537 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2019-05-23 09:22:08,537 INFO L146 ILogger]: Interpolant automaton has 20 states [2019-05-23 09:22:08,537 INFO L146 ILogger]: Constructing interpolant automaton starting with 20 interpolants. [2019-05-23 09:22:08,538 INFO L146 ILogger]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-05-23 09:22:08,538 INFO L146 ILogger]: Start difference. First operand 41 states and 41 transitions. Second operand 20 states. [2019-05-23 09:22:08,599 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:08,600 INFO L146 ILogger]: Finished difference Result 44 states and 44 transitions. [2019-05-23 09:22:08,603 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-05-23 09:22:08,603 INFO L146 ILogger]: Start accepts. Automaton has 20 states. Word has length 40 [2019-05-23 09:22:08,603 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:08,604 INFO L146 ILogger]: With dead ends: 44 [2019-05-23 09:22:08,604 INFO L146 ILogger]: Without dead ends: 44 [2019-05-23 09:22:08,605 INFO L146 ILogger]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2019-05-23 09:22:08,605 INFO L146 ILogger]: Start minimizeSevpa. Operand 44 states. [2019-05-23 09:22:08,607 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 44 to 43. [2019-05-23 09:22:08,607 INFO L146 ILogger]: Start removeUnreachable. Operand 43 states. [2019-05-23 09:22:08,608 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2019-05-23 09:22:08,608 INFO L146 ILogger]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 40 [2019-05-23 09:22:08,608 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:08,608 INFO L146 ILogger]: Abstraction has 43 states and 43 transitions. [2019-05-23 09:22:08,608 INFO L146 ILogger]: Interpolant automaton has 20 states. [2019-05-23 09:22:08,609 INFO L146 ILogger]: Start isEmpty. Operand 43 states and 43 transitions. [2019-05-23 09:22:08,609 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 43 [2019-05-23 09:22:08,609 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:08,610 INFO L146 ILogger]: trace histogram [18, 18, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:08,610 INFO L146 ILogger]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:08,610 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:08,610 INFO L146 ILogger]: Analyzing trace with hash -1408948808, now seen corresponding path program 18 times [2019-05-23 09:22:08,611 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:08,625 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:08,631 INFO L146 ILogger]: Trace formula consists of 65 conjuncts, 20 conjunts are in the unsatisfiable core [2019-05-23 09:22:08,633 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:08,938 INFO L146 ILogger]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:08,939 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:08,939 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2019-05-23 09:22:08,939 INFO L146 ILogger]: Interpolant automaton has 21 states [2019-05-23 09:22:08,939 INFO L146 ILogger]: Constructing interpolant automaton starting with 21 interpolants. [2019-05-23 09:22:08,940 INFO L146 ILogger]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-05-23 09:22:08,940 INFO L146 ILogger]: Start difference. First operand 43 states and 43 transitions. Second operand 21 states. [2019-05-23 09:22:09,028 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:09,028 INFO L146 ILogger]: Finished difference Result 46 states and 46 transitions. [2019-05-23 09:22:09,029 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-05-23 09:22:09,029 INFO L146 ILogger]: Start accepts. Automaton has 21 states. Word has length 42 [2019-05-23 09:22:09,029 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:09,030 INFO L146 ILogger]: With dead ends: 46 [2019-05-23 09:22:09,030 INFO L146 ILogger]: Without dead ends: 46 [2019-05-23 09:22:09,030 INFO L146 ILogger]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2019-05-23 09:22:09,030 INFO L146 ILogger]: Start minimizeSevpa. Operand 46 states. [2019-05-23 09:22:09,033 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 46 to 45. [2019-05-23 09:22:09,033 INFO L146 ILogger]: Start removeUnreachable. Operand 45 states. [2019-05-23 09:22:09,034 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2019-05-23 09:22:09,034 INFO L146 ILogger]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 42 [2019-05-23 09:22:09,034 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:09,034 INFO L146 ILogger]: Abstraction has 45 states and 45 transitions. [2019-05-23 09:22:09,034 INFO L146 ILogger]: Interpolant automaton has 21 states. [2019-05-23 09:22:09,035 INFO L146 ILogger]: Start isEmpty. Operand 45 states and 45 transitions. [2019-05-23 09:22:09,035 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 45 [2019-05-23 09:22:09,035 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:09,035 INFO L146 ILogger]: trace histogram [19, 19, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:09,036 INFO L146 ILogger]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:09,036 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:09,036 INFO L146 ILogger]: Analyzing trace with hash 459554327, now seen corresponding path program 19 times [2019-05-23 09:22:09,037 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:09,046 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:09,048 INFO L146 ILogger]: Trace formula consists of 68 conjuncts, 21 conjunts are in the unsatisfiable core [2019-05-23 09:22:09,050 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:09,321 INFO L146 ILogger]: Checked inductivity of 361 backedges. 0 proven. 361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:09,321 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:09,322 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2019-05-23 09:22:09,322 INFO L146 ILogger]: Interpolant automaton has 22 states [2019-05-23 09:22:09,322 INFO L146 ILogger]: Constructing interpolant automaton starting with 22 interpolants. [2019-05-23 09:22:09,322 INFO L146 ILogger]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-05-23 09:22:09,323 INFO L146 ILogger]: Start difference. First operand 45 states and 45 transitions. Second operand 22 states. [2019-05-23 09:22:09,399 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:09,400 INFO L146 ILogger]: Finished difference Result 48 states and 48 transitions. [2019-05-23 09:22:09,400 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-05-23 09:22:09,400 INFO L146 ILogger]: Start accepts. Automaton has 22 states. Word has length 44 [2019-05-23 09:22:09,401 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:09,401 INFO L146 ILogger]: With dead ends: 48 [2019-05-23 09:22:09,401 INFO L146 ILogger]: Without dead ends: 48 [2019-05-23 09:22:09,402 INFO L146 ILogger]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2019-05-23 09:22:09,402 INFO L146 ILogger]: Start minimizeSevpa. Operand 48 states. [2019-05-23 09:22:09,405 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 48 to 47. [2019-05-23 09:22:09,405 INFO L146 ILogger]: Start removeUnreachable. Operand 47 states. [2019-05-23 09:22:09,406 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2019-05-23 09:22:09,406 INFO L146 ILogger]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 44 [2019-05-23 09:22:09,406 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:09,406 INFO L146 ILogger]: Abstraction has 47 states and 47 transitions. [2019-05-23 09:22:09,406 INFO L146 ILogger]: Interpolant automaton has 22 states. [2019-05-23 09:22:09,406 INFO L146 ILogger]: Start isEmpty. Operand 47 states and 47 transitions. [2019-05-23 09:22:09,407 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 47 [2019-05-23 09:22:09,407 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:09,407 INFO L146 ILogger]: trace histogram [20, 20, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:09,407 INFO L146 ILogger]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:09,408 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:09,408 INFO L146 ILogger]: Analyzing trace with hash 794737334, now seen corresponding path program 20 times [2019-05-23 09:22:09,408 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:09,418 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:09,419 INFO L146 ILogger]: Trace formula consists of 71 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 09:22:09,421 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:09,743 INFO L146 ILogger]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:09,743 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:09,743 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2019-05-23 09:22:09,744 INFO L146 ILogger]: Interpolant automaton has 23 states [2019-05-23 09:22:09,744 INFO L146 ILogger]: Constructing interpolant automaton starting with 23 interpolants. [2019-05-23 09:22:09,744 INFO L146 ILogger]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-05-23 09:22:09,745 INFO L146 ILogger]: Start difference. First operand 47 states and 47 transitions. Second operand 23 states. [2019-05-23 09:22:09,921 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:09,921 INFO L146 ILogger]: Finished difference Result 50 states and 50 transitions. [2019-05-23 09:22:09,921 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-05-23 09:22:09,922 INFO L146 ILogger]: Start accepts. Automaton has 23 states. Word has length 46 [2019-05-23 09:22:09,922 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:09,923 INFO L146 ILogger]: With dead ends: 50 [2019-05-23 09:22:09,923 INFO L146 ILogger]: Without dead ends: 50 [2019-05-23 09:22:09,924 INFO L146 ILogger]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2019-05-23 09:22:09,924 INFO L146 ILogger]: Start minimizeSevpa. Operand 50 states. [2019-05-23 09:22:09,926 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 50 to 49. [2019-05-23 09:22:09,927 INFO L146 ILogger]: Start removeUnreachable. Operand 49 states. [2019-05-23 09:22:09,927 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2019-05-23 09:22:09,927 INFO L146 ILogger]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 46 [2019-05-23 09:22:09,928 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:09,928 INFO L146 ILogger]: Abstraction has 49 states and 49 transitions. [2019-05-23 09:22:09,928 INFO L146 ILogger]: Interpolant automaton has 23 states. [2019-05-23 09:22:09,928 INFO L146 ILogger]: Start isEmpty. Operand 49 states and 49 transitions. [2019-05-23 09:22:09,928 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 49 [2019-05-23 09:22:09,929 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:09,929 INFO L146 ILogger]: trace histogram [21, 21, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:09,929 INFO L146 ILogger]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:09,929 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:09,929 INFO L146 ILogger]: Analyzing trace with hash 783059861, now seen corresponding path program 21 times [2019-05-23 09:22:09,930 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:09,939 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:09,941 INFO L146 ILogger]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2019-05-23 09:22:09,943 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:10,220 INFO L146 ILogger]: Checked inductivity of 441 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:10,220 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:10,220 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2019-05-23 09:22:10,220 INFO L146 ILogger]: Interpolant automaton has 24 states [2019-05-23 09:22:10,221 INFO L146 ILogger]: Constructing interpolant automaton starting with 24 interpolants. [2019-05-23 09:22:10,221 INFO L146 ILogger]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-05-23 09:22:10,221 INFO L146 ILogger]: Start difference. First operand 49 states and 49 transitions. Second operand 24 states. [2019-05-23 09:22:10,286 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:10,286 INFO L146 ILogger]: Finished difference Result 52 states and 52 transitions. [2019-05-23 09:22:10,287 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-05-23 09:22:10,287 INFO L146 ILogger]: Start accepts. Automaton has 24 states. Word has length 48 [2019-05-23 09:22:10,288 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:10,288 INFO L146 ILogger]: With dead ends: 52 [2019-05-23 09:22:10,288 INFO L146 ILogger]: Without dead ends: 52 [2019-05-23 09:22:10,289 INFO L146 ILogger]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2019-05-23 09:22:10,289 INFO L146 ILogger]: Start minimizeSevpa. Operand 52 states. [2019-05-23 09:22:10,291 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 52 to 51. [2019-05-23 09:22:10,292 INFO L146 ILogger]: Start removeUnreachable. Operand 51 states. [2019-05-23 09:22:10,292 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2019-05-23 09:22:10,292 INFO L146 ILogger]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 48 [2019-05-23 09:22:10,293 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:10,293 INFO L146 ILogger]: Abstraction has 51 states and 51 transitions. [2019-05-23 09:22:10,293 INFO L146 ILogger]: Interpolant automaton has 24 states. [2019-05-23 09:22:10,293 INFO L146 ILogger]: Start isEmpty. Operand 51 states and 51 transitions. [2019-05-23 09:22:10,293 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 51 [2019-05-23 09:22:10,293 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:10,294 INFO L146 ILogger]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:10,294 INFO L146 ILogger]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:10,294 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:10,294 INFO L146 ILogger]: Analyzing trace with hash -1849057100, now seen corresponding path program 22 times [2019-05-23 09:22:10,295 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:10,304 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:10,305 INFO L146 ILogger]: Trace formula consists of 77 conjuncts, 24 conjunts are in the unsatisfiable core [2019-05-23 09:22:10,307 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:10,606 INFO L146 ILogger]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:10,607 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:10,607 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2019-05-23 09:22:10,607 INFO L146 ILogger]: Interpolant automaton has 25 states [2019-05-23 09:22:10,607 INFO L146 ILogger]: Constructing interpolant automaton starting with 25 interpolants. [2019-05-23 09:22:10,608 INFO L146 ILogger]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-05-23 09:22:10,608 INFO L146 ILogger]: Start difference. First operand 51 states and 51 transitions. Second operand 25 states. [2019-05-23 09:22:10,700 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:10,700 INFO L146 ILogger]: Finished difference Result 54 states and 54 transitions. [2019-05-23 09:22:10,700 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-05-23 09:22:10,700 INFO L146 ILogger]: Start accepts. Automaton has 25 states. Word has length 50 [2019-05-23 09:22:10,701 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:10,701 INFO L146 ILogger]: With dead ends: 54 [2019-05-23 09:22:10,701 INFO L146 ILogger]: Without dead ends: 54 [2019-05-23 09:22:10,702 INFO L146 ILogger]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2019-05-23 09:22:10,702 INFO L146 ILogger]: Start minimizeSevpa. Operand 54 states. [2019-05-23 09:22:10,704 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 54 to 53. [2019-05-23 09:22:10,704 INFO L146 ILogger]: Start removeUnreachable. Operand 53 states. [2019-05-23 09:22:10,704 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2019-05-23 09:22:10,704 INFO L146 ILogger]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 50 [2019-05-23 09:22:10,704 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:10,705 INFO L146 ILogger]: Abstraction has 53 states and 53 transitions. [2019-05-23 09:22:10,705 INFO L146 ILogger]: Interpolant automaton has 25 states. [2019-05-23 09:22:10,705 INFO L146 ILogger]: Start isEmpty. Operand 53 states and 53 transitions. [2019-05-23 09:22:10,705 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 53 [2019-05-23 09:22:10,705 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:10,706 INFO L146 ILogger]: trace histogram [23, 23, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:10,706 INFO L146 ILogger]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:10,706 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:10,706 INFO L146 ILogger]: Analyzing trace with hash -1577719277, now seen corresponding path program 23 times [2019-05-23 09:22:10,707 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:10,715 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:10,717 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 25 conjunts are in the unsatisfiable core [2019-05-23 09:22:10,719 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:11,241 INFO L146 ILogger]: Checked inductivity of 529 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:11,241 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:11,241 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2019-05-23 09:22:11,242 INFO L146 ILogger]: Interpolant automaton has 26 states [2019-05-23 09:22:11,242 INFO L146 ILogger]: Constructing interpolant automaton starting with 26 interpolants. [2019-05-23 09:22:11,242 INFO L146 ILogger]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-05-23 09:22:11,242 INFO L146 ILogger]: Start difference. First operand 53 states and 53 transitions. Second operand 26 states. [2019-05-23 09:22:11,314 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:11,315 INFO L146 ILogger]: Finished difference Result 56 states and 56 transitions. [2019-05-23 09:22:11,315 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-05-23 09:22:11,315 INFO L146 ILogger]: Start accepts. Automaton has 26 states. Word has length 52 [2019-05-23 09:22:11,316 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:11,316 INFO L146 ILogger]: With dead ends: 56 [2019-05-23 09:22:11,316 INFO L146 ILogger]: Without dead ends: 56 [2019-05-23 09:22:11,317 INFO L146 ILogger]: 0 DeclaredPredicates, 51 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2019-05-23 09:22:11,318 INFO L146 ILogger]: Start minimizeSevpa. Operand 56 states. [2019-05-23 09:22:11,320 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 56 to 55. [2019-05-23 09:22:11,320 INFO L146 ILogger]: Start removeUnreachable. Operand 55 states. [2019-05-23 09:22:11,321 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2019-05-23 09:22:11,321 INFO L146 ILogger]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 52 [2019-05-23 09:22:11,321 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:11,321 INFO L146 ILogger]: Abstraction has 55 states and 55 transitions. [2019-05-23 09:22:11,321 INFO L146 ILogger]: Interpolant automaton has 26 states. [2019-05-23 09:22:11,321 INFO L146 ILogger]: Start isEmpty. Operand 55 states and 55 transitions. [2019-05-23 09:22:11,322 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 55 [2019-05-23 09:22:11,322 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:11,322 INFO L146 ILogger]: trace histogram [24, 24, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:11,323 INFO L146 ILogger]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:11,323 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:11,323 INFO L146 ILogger]: Analyzing trace with hash 1479890866, now seen corresponding path program 24 times [2019-05-23 09:22:11,324 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:11,333 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:11,335 INFO L146 ILogger]: Trace formula consists of 83 conjuncts, 26 conjunts are in the unsatisfiable core [2019-05-23 09:22:11,337 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:11,963 INFO L146 ILogger]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:11,964 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:11,964 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2019-05-23 09:22:11,964 INFO L146 ILogger]: Interpolant automaton has 27 states [2019-05-23 09:22:11,964 INFO L146 ILogger]: Constructing interpolant automaton starting with 27 interpolants. [2019-05-23 09:22:11,965 INFO L146 ILogger]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-05-23 09:22:11,965 INFO L146 ILogger]: Start difference. First operand 55 states and 55 transitions. Second operand 27 states. [2019-05-23 09:22:12,040 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:12,041 INFO L146 ILogger]: Finished difference Result 58 states and 58 transitions. [2019-05-23 09:22:12,041 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-05-23 09:22:12,041 INFO L146 ILogger]: Start accepts. Automaton has 27 states. Word has length 54 [2019-05-23 09:22:12,042 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:12,042 INFO L146 ILogger]: With dead ends: 58 [2019-05-23 09:22:12,042 INFO L146 ILogger]: Without dead ends: 58 [2019-05-23 09:22:12,043 INFO L146 ILogger]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2019-05-23 09:22:12,043 INFO L146 ILogger]: Start minimizeSevpa. Operand 58 states. [2019-05-23 09:22:12,046 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 58 to 57. [2019-05-23 09:22:12,046 INFO L146 ILogger]: Start removeUnreachable. Operand 57 states. [2019-05-23 09:22:12,046 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2019-05-23 09:22:12,046 INFO L146 ILogger]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 54 [2019-05-23 09:22:12,047 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:12,047 INFO L146 ILogger]: Abstraction has 57 states and 57 transitions. [2019-05-23 09:22:12,047 INFO L146 ILogger]: Interpolant automaton has 27 states. [2019-05-23 09:22:12,047 INFO L146 ILogger]: Start isEmpty. Operand 57 states and 57 transitions. [2019-05-23 09:22:12,047 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 57 [2019-05-23 09:22:12,048 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:12,048 INFO L146 ILogger]: trace histogram [25, 25, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:12,048 INFO L146 ILogger]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:12,048 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:12,048 INFO L146 ILogger]: Analyzing trace with hash 2085607825, now seen corresponding path program 25 times [2019-05-23 09:22:12,049 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:12,057 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:12,058 INFO L146 ILogger]: Trace formula consists of 86 conjuncts, 27 conjunts are in the unsatisfiable core [2019-05-23 09:22:12,060 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:12,492 INFO L146 ILogger]: Checked inductivity of 625 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:12,492 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:12,492 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2019-05-23 09:22:12,493 INFO L146 ILogger]: Interpolant automaton has 28 states [2019-05-23 09:22:12,493 INFO L146 ILogger]: Constructing interpolant automaton starting with 28 interpolants. [2019-05-23 09:22:12,493 INFO L146 ILogger]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-05-23 09:22:12,494 INFO L146 ILogger]: Start difference. First operand 57 states and 57 transitions. Second operand 28 states. [2019-05-23 09:22:12,561 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:12,561 INFO L146 ILogger]: Finished difference Result 60 states and 60 transitions. [2019-05-23 09:22:12,562 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-05-23 09:22:12,562 INFO L146 ILogger]: Start accepts. Automaton has 28 states. Word has length 56 [2019-05-23 09:22:12,562 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:12,563 INFO L146 ILogger]: With dead ends: 60 [2019-05-23 09:22:12,563 INFO L146 ILogger]: Without dead ends: 60 [2019-05-23 09:22:12,564 INFO L146 ILogger]: 0 DeclaredPredicates, 55 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2019-05-23 09:22:12,564 INFO L146 ILogger]: Start minimizeSevpa. Operand 60 states. [2019-05-23 09:22:12,566 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 60 to 59. [2019-05-23 09:22:12,566 INFO L146 ILogger]: Start removeUnreachable. Operand 59 states. [2019-05-23 09:22:12,566 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2019-05-23 09:22:12,566 INFO L146 ILogger]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 56 [2019-05-23 09:22:12,567 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:12,567 INFO L146 ILogger]: Abstraction has 59 states and 59 transitions. [2019-05-23 09:22:12,567 INFO L146 ILogger]: Interpolant automaton has 28 states. [2019-05-23 09:22:12,567 INFO L146 ILogger]: Start isEmpty. Operand 59 states and 59 transitions. [2019-05-23 09:22:12,567 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 59 [2019-05-23 09:22:12,567 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:12,568 INFO L146 ILogger]: trace histogram [26, 26, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:12,568 INFO L146 ILogger]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:12,568 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:12,568 INFO L146 ILogger]: Analyzing trace with hash 64053168, now seen corresponding path program 26 times [2019-05-23 09:22:12,569 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:12,577 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:12,578 INFO L146 ILogger]: Trace formula consists of 89 conjuncts, 28 conjunts are in the unsatisfiable core [2019-05-23 09:22:12,580 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:13,223 INFO L146 ILogger]: Checked inductivity of 676 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:13,223 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:13,223 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2019-05-23 09:22:13,223 INFO L146 ILogger]: Interpolant automaton has 29 states [2019-05-23 09:22:13,224 INFO L146 ILogger]: Constructing interpolant automaton starting with 29 interpolants. [2019-05-23 09:22:13,224 INFO L146 ILogger]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-05-23 09:22:13,224 INFO L146 ILogger]: Start difference. First operand 59 states and 59 transitions. Second operand 29 states. [2019-05-23 09:22:13,332 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:13,332 INFO L146 ILogger]: Finished difference Result 62 states and 62 transitions. [2019-05-23 09:22:13,333 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-05-23 09:22:13,333 INFO L146 ILogger]: Start accepts. Automaton has 29 states. Word has length 58 [2019-05-23 09:22:13,333 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:13,333 INFO L146 ILogger]: With dead ends: 62 [2019-05-23 09:22:13,333 INFO L146 ILogger]: Without dead ends: 62 [2019-05-23 09:22:13,337 INFO L146 ILogger]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2019-05-23 09:22:13,337 INFO L146 ILogger]: Start minimizeSevpa. Operand 62 states. [2019-05-23 09:22:13,338 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 62 to 61. [2019-05-23 09:22:13,339 INFO L146 ILogger]: Start removeUnreachable. Operand 61 states. [2019-05-23 09:22:13,342 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2019-05-23 09:22:13,342 INFO L146 ILogger]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 58 [2019-05-23 09:22:13,342 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:13,342 INFO L146 ILogger]: Abstraction has 61 states and 61 transitions. [2019-05-23 09:22:13,343 INFO L146 ILogger]: Interpolant automaton has 29 states. [2019-05-23 09:22:13,343 INFO L146 ILogger]: Start isEmpty. Operand 61 states and 61 transitions. [2019-05-23 09:22:13,343 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 61 [2019-05-23 09:22:13,343 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:13,344 INFO L146 ILogger]: trace histogram [27, 27, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:13,344 INFO L146 ILogger]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:13,344 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:13,344 INFO L146 ILogger]: Analyzing trace with hash -1324754417, now seen corresponding path program 27 times [2019-05-23 09:22:13,345 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:13,353 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:13,354 INFO L146 ILogger]: Trace formula consists of 92 conjuncts, 29 conjunts are in the unsatisfiable core [2019-05-23 09:22:13,355 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:13,901 INFO L146 ILogger]: Checked inductivity of 729 backedges. 0 proven. 729 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:13,901 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:13,901 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2019-05-23 09:22:13,902 INFO L146 ILogger]: Interpolant automaton has 30 states [2019-05-23 09:22:13,902 INFO L146 ILogger]: Constructing interpolant automaton starting with 30 interpolants. [2019-05-23 09:22:13,902 INFO L146 ILogger]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-05-23 09:22:13,903 INFO L146 ILogger]: Start difference. First operand 61 states and 61 transitions. Second operand 30 states. [2019-05-23 09:22:14,099 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:14,099 INFO L146 ILogger]: Finished difference Result 64 states and 64 transitions. [2019-05-23 09:22:14,099 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-05-23 09:22:14,100 INFO L146 ILogger]: Start accepts. Automaton has 30 states. Word has length 60 [2019-05-23 09:22:14,100 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:14,101 INFO L146 ILogger]: With dead ends: 64 [2019-05-23 09:22:14,101 INFO L146 ILogger]: Without dead ends: 64 [2019-05-23 09:22:14,101 INFO L146 ILogger]: 0 DeclaredPredicates, 59 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2019-05-23 09:22:14,102 INFO L146 ILogger]: Start minimizeSevpa. Operand 64 states. [2019-05-23 09:22:14,103 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 64 to 63. [2019-05-23 09:22:14,103 INFO L146 ILogger]: Start removeUnreachable. Operand 63 states. [2019-05-23 09:22:14,103 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2019-05-23 09:22:14,103 INFO L146 ILogger]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 60 [2019-05-23 09:22:14,104 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:14,104 INFO L146 ILogger]: Abstraction has 63 states and 63 transitions. [2019-05-23 09:22:14,104 INFO L146 ILogger]: Interpolant automaton has 30 states. [2019-05-23 09:22:14,104 INFO L146 ILogger]: Start isEmpty. Operand 63 states and 63 transitions. [2019-05-23 09:22:14,104 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 63 [2019-05-23 09:22:14,104 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:14,104 INFO L146 ILogger]: trace histogram [28, 28, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:14,105 INFO L146 ILogger]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:14,105 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:14,105 INFO L146 ILogger]: Analyzing trace with hash -234014546, now seen corresponding path program 28 times [2019-05-23 09:22:14,106 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:14,114 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:14,115 INFO L146 ILogger]: Trace formula consists of 95 conjuncts, 30 conjunts are in the unsatisfiable core [2019-05-23 09:22:14,116 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:14,468 INFO L146 ILogger]: Checked inductivity of 784 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:14,469 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:14,469 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2019-05-23 09:22:14,469 INFO L146 ILogger]: Interpolant automaton has 31 states [2019-05-23 09:22:14,469 INFO L146 ILogger]: Constructing interpolant automaton starting with 31 interpolants. [2019-05-23 09:22:14,470 INFO L146 ILogger]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-05-23 09:22:14,470 INFO L146 ILogger]: Start difference. First operand 63 states and 63 transitions. Second operand 31 states. [2019-05-23 09:22:14,562 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:14,563 INFO L146 ILogger]: Finished difference Result 66 states and 66 transitions. [2019-05-23 09:22:14,563 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-05-23 09:22:14,563 INFO L146 ILogger]: Start accepts. Automaton has 31 states. Word has length 62 [2019-05-23 09:22:14,564 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:14,564 INFO L146 ILogger]: With dead ends: 66 [2019-05-23 09:22:14,564 INFO L146 ILogger]: Without dead ends: 66 [2019-05-23 09:22:14,565 INFO L146 ILogger]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2019-05-23 09:22:14,566 INFO L146 ILogger]: Start minimizeSevpa. Operand 66 states. [2019-05-23 09:22:14,567 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 66 to 65. [2019-05-23 09:22:14,567 INFO L146 ILogger]: Start removeUnreachable. Operand 65 states. [2019-05-23 09:22:14,568 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2019-05-23 09:22:14,568 INFO L146 ILogger]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 62 [2019-05-23 09:22:14,568 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:14,568 INFO L146 ILogger]: Abstraction has 65 states and 65 transitions. [2019-05-23 09:22:14,568 INFO L146 ILogger]: Interpolant automaton has 31 states. [2019-05-23 09:22:14,568 INFO L146 ILogger]: Start isEmpty. Operand 65 states and 65 transitions. [2019-05-23 09:22:14,569 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 65 [2019-05-23 09:22:14,569 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:14,569 INFO L146 ILogger]: trace histogram [29, 29, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:14,569 INFO L146 ILogger]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:14,569 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:14,570 INFO L146 ILogger]: Analyzing trace with hash -5018739, now seen corresponding path program 29 times [2019-05-23 09:22:14,570 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:14,578 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:14,579 INFO L146 ILogger]: Trace formula consists of 98 conjuncts, 31 conjunts are in the unsatisfiable core [2019-05-23 09:22:14,580 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:15,075 INFO L146 ILogger]: Checked inductivity of 841 backedges. 0 proven. 841 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:15,076 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:15,076 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2019-05-23 09:22:15,076 INFO L146 ILogger]: Interpolant automaton has 32 states [2019-05-23 09:22:15,076 INFO L146 ILogger]: Constructing interpolant automaton starting with 32 interpolants. [2019-05-23 09:22:15,077 INFO L146 ILogger]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-05-23 09:22:15,077 INFO L146 ILogger]: Start difference. First operand 65 states and 65 transitions. Second operand 32 states. [2019-05-23 09:22:15,178 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:15,178 INFO L146 ILogger]: Finished difference Result 68 states and 68 transitions. [2019-05-23 09:22:15,179 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-05-23 09:22:15,179 INFO L146 ILogger]: Start accepts. Automaton has 32 states. Word has length 64 [2019-05-23 09:22:15,179 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:15,180 INFO L146 ILogger]: With dead ends: 68 [2019-05-23 09:22:15,180 INFO L146 ILogger]: Without dead ends: 68 [2019-05-23 09:22:15,181 INFO L146 ILogger]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2019-05-23 09:22:15,181 INFO L146 ILogger]: Start minimizeSevpa. Operand 68 states. [2019-05-23 09:22:15,183 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 68 to 67. [2019-05-23 09:22:15,183 INFO L146 ILogger]: Start removeUnreachable. Operand 67 states. [2019-05-23 09:22:15,184 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2019-05-23 09:22:15,184 INFO L146 ILogger]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 64 [2019-05-23 09:22:15,184 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:15,184 INFO L146 ILogger]: Abstraction has 67 states and 67 transitions. [2019-05-23 09:22:15,184 INFO L146 ILogger]: Interpolant automaton has 32 states. [2019-05-23 09:22:15,184 INFO L146 ILogger]: Start isEmpty. Operand 67 states and 67 transitions. [2019-05-23 09:22:15,185 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 67 [2019-05-23 09:22:15,185 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:15,185 INFO L146 ILogger]: trace histogram [30, 30, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:15,185 INFO L146 ILogger]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:15,186 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:15,186 INFO L146 ILogger]: Analyzing trace with hash 1016619692, now seen corresponding path program 30 times [2019-05-23 09:22:15,186 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:15,195 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:15,196 INFO L146 ILogger]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2019-05-23 09:22:15,197 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:15,665 INFO L146 ILogger]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:15,666 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:15,666 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2019-05-23 09:22:15,666 INFO L146 ILogger]: Interpolant automaton has 33 states [2019-05-23 09:22:15,666 INFO L146 ILogger]: Constructing interpolant automaton starting with 33 interpolants. [2019-05-23 09:22:15,667 INFO L146 ILogger]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 09:22:15,667 INFO L146 ILogger]: Start difference. First operand 67 states and 67 transitions. Second operand 33 states. [2019-05-23 09:22:15,798 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:15,798 INFO L146 ILogger]: Finished difference Result 70 states and 70 transitions. [2019-05-23 09:22:15,799 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-05-23 09:22:15,799 INFO L146 ILogger]: Start accepts. Automaton has 33 states. Word has length 66 [2019-05-23 09:22:15,799 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:15,799 INFO L146 ILogger]: With dead ends: 70 [2019-05-23 09:22:15,799 INFO L146 ILogger]: Without dead ends: 70 [2019-05-23 09:22:15,800 INFO L146 ILogger]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2019-05-23 09:22:15,800 INFO L146 ILogger]: Start minimizeSevpa. Operand 70 states. [2019-05-23 09:22:15,801 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 70 to 69. [2019-05-23 09:22:15,801 INFO L146 ILogger]: Start removeUnreachable. Operand 69 states. [2019-05-23 09:22:15,802 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2019-05-23 09:22:15,802 INFO L146 ILogger]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 66 [2019-05-23 09:22:15,802 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:15,802 INFO L146 ILogger]: Abstraction has 69 states and 69 transitions. [2019-05-23 09:22:15,802 INFO L146 ILogger]: Interpolant automaton has 33 states. [2019-05-23 09:22:15,802 INFO L146 ILogger]: Start isEmpty. Operand 69 states and 69 transitions. [2019-05-23 09:22:15,803 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 69 [2019-05-23 09:22:15,803 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:15,803 INFO L146 ILogger]: trace histogram [31, 31, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:15,803 INFO L146 ILogger]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:15,803 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:15,803 INFO L146 ILogger]: Analyzing trace with hash -736358901, now seen corresponding path program 31 times [2019-05-23 09:22:15,804 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:15,812 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:15,813 INFO L146 ILogger]: Trace formula consists of 104 conjuncts, 33 conjunts are in the unsatisfiable core [2019-05-23 09:22:15,814 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:17,133 INFO L146 ILogger]: Checked inductivity of 961 backedges. 0 proven. 961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:17,133 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:17,133 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2019-05-23 09:22:17,133 INFO L146 ILogger]: Interpolant automaton has 34 states [2019-05-23 09:22:17,134 INFO L146 ILogger]: Constructing interpolant automaton starting with 34 interpolants. [2019-05-23 09:22:17,134 INFO L146 ILogger]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 09:22:17,134 INFO L146 ILogger]: Start difference. First operand 69 states and 69 transitions. Second operand 34 states. [2019-05-23 09:22:17,258 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:17,258 INFO L146 ILogger]: Finished difference Result 72 states and 72 transitions. [2019-05-23 09:22:17,259 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-05-23 09:22:17,259 INFO L146 ILogger]: Start accepts. Automaton has 34 states. Word has length 68 [2019-05-23 09:22:17,260 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:17,260 INFO L146 ILogger]: With dead ends: 72 [2019-05-23 09:22:17,261 INFO L146 ILogger]: Without dead ends: 72 [2019-05-23 09:22:17,261 INFO L146 ILogger]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2019-05-23 09:22:17,261 INFO L146 ILogger]: Start minimizeSevpa. Operand 72 states. [2019-05-23 09:22:17,262 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 72 to 71. [2019-05-23 09:22:17,263 INFO L146 ILogger]: Start removeUnreachable. Operand 71 states. [2019-05-23 09:22:17,263 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2019-05-23 09:22:17,263 INFO L146 ILogger]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 68 [2019-05-23 09:22:17,263 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:17,264 INFO L146 ILogger]: Abstraction has 71 states and 71 transitions. [2019-05-23 09:22:17,264 INFO L146 ILogger]: Interpolant automaton has 34 states. [2019-05-23 09:22:17,264 INFO L146 ILogger]: Start isEmpty. Operand 71 states and 71 transitions. [2019-05-23 09:22:17,264 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 71 [2019-05-23 09:22:17,264 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:17,264 INFO L146 ILogger]: trace histogram [32, 32, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:17,264 INFO L146 ILogger]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:17,265 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:17,265 INFO L146 ILogger]: Analyzing trace with hash -1721606742, now seen corresponding path program 32 times [2019-05-23 09:22:17,265 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:17,274 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:17,275 INFO L146 ILogger]: Trace formula consists of 107 conjuncts, 34 conjunts are in the unsatisfiable core [2019-05-23 09:22:17,276 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:17,783 INFO L146 ILogger]: Checked inductivity of 1024 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:17,784 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:17,784 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2019-05-23 09:22:17,784 INFO L146 ILogger]: Interpolant automaton has 35 states [2019-05-23 09:22:17,784 INFO L146 ILogger]: Constructing interpolant automaton starting with 35 interpolants. [2019-05-23 09:22:17,785 INFO L146 ILogger]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 09:22:17,785 INFO L146 ILogger]: Start difference. First operand 71 states and 71 transitions. Second operand 35 states. [2019-05-23 09:22:17,876 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:17,876 INFO L146 ILogger]: Finished difference Result 74 states and 74 transitions. [2019-05-23 09:22:17,876 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-05-23 09:22:17,877 INFO L146 ILogger]: Start accepts. Automaton has 35 states. Word has length 70 [2019-05-23 09:22:17,877 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:17,878 INFO L146 ILogger]: With dead ends: 74 [2019-05-23 09:22:17,878 INFO L146 ILogger]: Without dead ends: 74 [2019-05-23 09:22:17,879 INFO L146 ILogger]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2019-05-23 09:22:17,879 INFO L146 ILogger]: Start minimizeSevpa. Operand 74 states. [2019-05-23 09:22:17,881 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 74 to 73. [2019-05-23 09:22:17,881 INFO L146 ILogger]: Start removeUnreachable. Operand 73 states. [2019-05-23 09:22:17,882 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 73 states to 73 states and 73 transitions. [2019-05-23 09:22:17,882 INFO L146 ILogger]: Start accepts. Automaton has 73 states and 73 transitions. Word has length 70 [2019-05-23 09:22:17,882 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:17,882 INFO L146 ILogger]: Abstraction has 73 states and 73 transitions. [2019-05-23 09:22:17,882 INFO L146 ILogger]: Interpolant automaton has 35 states. [2019-05-23 09:22:17,883 INFO L146 ILogger]: Start isEmpty. Operand 73 states and 73 transitions. [2019-05-23 09:22:17,883 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 73 [2019-05-23 09:22:17,883 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:17,883 INFO L146 ILogger]: trace histogram [33, 33, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:17,883 INFO L146 ILogger]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:17,884 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:17,884 INFO L146 ILogger]: Analyzing trace with hash 642990473, now seen corresponding path program 33 times [2019-05-23 09:22:17,884 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:17,893 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:17,894 INFO L146 ILogger]: Trace formula consists of 110 conjuncts, 35 conjunts are in the unsatisfiable core [2019-05-23 09:22:17,895 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:18,395 INFO L146 ILogger]: Checked inductivity of 1089 backedges. 0 proven. 1089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:18,396 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:18,396 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2019-05-23 09:22:18,396 INFO L146 ILogger]: Interpolant automaton has 36 states [2019-05-23 09:22:18,397 INFO L146 ILogger]: Constructing interpolant automaton starting with 36 interpolants. [2019-05-23 09:22:18,397 INFO L146 ILogger]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 09:22:18,397 INFO L146 ILogger]: Start difference. First operand 73 states and 73 transitions. Second operand 36 states. [2019-05-23 09:22:18,495 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:18,495 INFO L146 ILogger]: Finished difference Result 76 states and 76 transitions. [2019-05-23 09:22:18,495 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-05-23 09:22:18,496 INFO L146 ILogger]: Start accepts. Automaton has 36 states. Word has length 72 [2019-05-23 09:22:18,496 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:18,497 INFO L146 ILogger]: With dead ends: 76 [2019-05-23 09:22:18,497 INFO L146 ILogger]: Without dead ends: 76 [2019-05-23 09:22:18,498 INFO L146 ILogger]: 0 DeclaredPredicates, 71 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2019-05-23 09:22:18,499 INFO L146 ILogger]: Start minimizeSevpa. Operand 76 states. [2019-05-23 09:22:18,500 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 76 to 75. [2019-05-23 09:22:18,500 INFO L146 ILogger]: Start removeUnreachable. Operand 75 states. [2019-05-23 09:22:18,501 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2019-05-23 09:22:18,501 INFO L146 ILogger]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 72 [2019-05-23 09:22:18,501 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:18,501 INFO L146 ILogger]: Abstraction has 75 states and 75 transitions. [2019-05-23 09:22:18,502 INFO L146 ILogger]: Interpolant automaton has 36 states. [2019-05-23 09:22:18,502 INFO L146 ILogger]: Start isEmpty. Operand 75 states and 75 transitions. [2019-05-23 09:22:18,502 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 75 [2019-05-23 09:22:18,502 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:18,502 INFO L146 ILogger]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:18,502 INFO L146 ILogger]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:18,503 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:18,503 INFO L146 ILogger]: Analyzing trace with hash 983214504, now seen corresponding path program 34 times [2019-05-23 09:22:18,503 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:18,511 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:18,513 INFO L146 ILogger]: Trace formula consists of 113 conjuncts, 36 conjunts are in the unsatisfiable core [2019-05-23 09:22:18,514 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:19,162 INFO L146 ILogger]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:19,163 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:19,163 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2019-05-23 09:22:19,163 INFO L146 ILogger]: Interpolant automaton has 37 states [2019-05-23 09:22:19,164 INFO L146 ILogger]: Constructing interpolant automaton starting with 37 interpolants. [2019-05-23 09:22:19,164 INFO L146 ILogger]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 09:22:19,164 INFO L146 ILogger]: Start difference. First operand 75 states and 75 transitions. Second operand 37 states. [2019-05-23 09:22:19,260 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:19,260 INFO L146 ILogger]: Finished difference Result 78 states and 78 transitions. [2019-05-23 09:22:19,260 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-05-23 09:22:19,261 INFO L146 ILogger]: Start accepts. Automaton has 37 states. Word has length 74 [2019-05-23 09:22:19,261 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:19,262 INFO L146 ILogger]: With dead ends: 78 [2019-05-23 09:22:19,262 INFO L146 ILogger]: Without dead ends: 78 [2019-05-23 09:22:19,263 INFO L146 ILogger]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2019-05-23 09:22:19,263 INFO L146 ILogger]: Start minimizeSevpa. Operand 78 states. [2019-05-23 09:22:19,264 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 78 to 77. [2019-05-23 09:22:19,265 INFO L146 ILogger]: Start removeUnreachable. Operand 77 states. [2019-05-23 09:22:19,265 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2019-05-23 09:22:19,265 INFO L146 ILogger]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 74 [2019-05-23 09:22:19,265 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:19,266 INFO L146 ILogger]: Abstraction has 77 states and 77 transitions. [2019-05-23 09:22:19,266 INFO L146 ILogger]: Interpolant automaton has 37 states. [2019-05-23 09:22:19,266 INFO L146 ILogger]: Start isEmpty. Operand 77 states and 77 transitions. [2019-05-23 09:22:19,266 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 77 [2019-05-23 09:22:19,266 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:19,266 INFO L146 ILogger]: trace histogram [35, 35, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:19,266 INFO L146 ILogger]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:19,267 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:19,267 INFO L146 ILogger]: Analyzing trace with hash 1520993799, now seen corresponding path program 35 times [2019-05-23 09:22:19,267 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:19,276 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:19,277 INFO L146 ILogger]: Trace formula consists of 116 conjuncts, 37 conjunts are in the unsatisfiable core [2019-05-23 09:22:19,278 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:20,316 INFO L146 ILogger]: Checked inductivity of 1225 backedges. 0 proven. 1225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:20,317 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:20,317 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2019-05-23 09:22:20,317 INFO L146 ILogger]: Interpolant automaton has 38 states [2019-05-23 09:22:20,317 INFO L146 ILogger]: Constructing interpolant automaton starting with 38 interpolants. [2019-05-23 09:22:20,318 INFO L146 ILogger]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 09:22:20,318 INFO L146 ILogger]: Start difference. First operand 77 states and 77 transitions. Second operand 38 states. [2019-05-23 09:22:20,515 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:20,515 INFO L146 ILogger]: Finished difference Result 80 states and 80 transitions. [2019-05-23 09:22:20,516 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-05-23 09:22:20,516 INFO L146 ILogger]: Start accepts. Automaton has 38 states. Word has length 76 [2019-05-23 09:22:20,516 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:20,517 INFO L146 ILogger]: With dead ends: 80 [2019-05-23 09:22:20,517 INFO L146 ILogger]: Without dead ends: 80 [2019-05-23 09:22:20,517 INFO L146 ILogger]: 0 DeclaredPredicates, 75 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2019-05-23 09:22:20,518 INFO L146 ILogger]: Start minimizeSevpa. Operand 80 states. [2019-05-23 09:22:20,518 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 80 to 79. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Start removeUnreachable. Operand 79 states. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 76 [2019-05-23 09:22:20,519 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Abstraction has 79 states and 79 transitions. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Interpolant automaton has 38 states. [2019-05-23 09:22:20,519 INFO L146 ILogger]: Start isEmpty. Operand 79 states and 79 transitions. [2019-05-23 09:22:20,520 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 79 [2019-05-23 09:22:20,520 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:20,520 INFO L146 ILogger]: trace histogram [36, 36, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:20,520 INFO L146 ILogger]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:20,521 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:20,521 INFO L146 ILogger]: Analyzing trace with hash -1364146522, now seen corresponding path program 36 times [2019-05-23 09:22:20,521 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:20,529 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:20,531 INFO L146 ILogger]: Trace formula consists of 119 conjuncts, 38 conjunts are in the unsatisfiable core [2019-05-23 09:22:20,532 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:21,313 INFO L146 ILogger]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:21,314 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:21,314 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2019-05-23 09:22:21,314 INFO L146 ILogger]: Interpolant automaton has 39 states [2019-05-23 09:22:21,315 INFO L146 ILogger]: Constructing interpolant automaton starting with 39 interpolants. [2019-05-23 09:22:21,315 INFO L146 ILogger]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 09:22:21,315 INFO L146 ILogger]: Start difference. First operand 79 states and 79 transitions. Second operand 39 states. [2019-05-23 09:22:21,419 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:21,419 INFO L146 ILogger]: Finished difference Result 82 states and 82 transitions. [2019-05-23 09:22:21,419 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-05-23 09:22:21,420 INFO L146 ILogger]: Start accepts. Automaton has 39 states. Word has length 78 [2019-05-23 09:22:21,420 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:21,421 INFO L146 ILogger]: With dead ends: 82 [2019-05-23 09:22:21,421 INFO L146 ILogger]: Without dead ends: 82 [2019-05-23 09:22:21,422 INFO L146 ILogger]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2019-05-23 09:22:21,422 INFO L146 ILogger]: Start minimizeSevpa. Operand 82 states. [2019-05-23 09:22:21,424 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 82 to 81. [2019-05-23 09:22:21,424 INFO L146 ILogger]: Start removeUnreachable. Operand 81 states. [2019-05-23 09:22:21,425 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2019-05-23 09:22:21,425 INFO L146 ILogger]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 78 [2019-05-23 09:22:21,425 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:21,425 INFO L146 ILogger]: Abstraction has 81 states and 81 transitions. [2019-05-23 09:22:21,425 INFO L146 ILogger]: Interpolant automaton has 39 states. [2019-05-23 09:22:21,425 INFO L146 ILogger]: Start isEmpty. Operand 81 states and 81 transitions. [2019-05-23 09:22:21,426 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 81 [2019-05-23 09:22:21,426 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:21,426 INFO L146 ILogger]: trace histogram [37, 37, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:21,426 INFO L146 ILogger]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:21,426 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:21,427 INFO L146 ILogger]: Analyzing trace with hash 564878213, now seen corresponding path program 37 times [2019-05-23 09:22:21,427 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:21,435 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:21,436 INFO L146 ILogger]: Trace formula consists of 122 conjuncts, 39 conjunts are in the unsatisfiable core [2019-05-23 09:22:21,438 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:22,032 INFO L146 ILogger]: Checked inductivity of 1369 backedges. 0 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:22,033 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:22,033 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2019-05-23 09:22:22,033 INFO L146 ILogger]: Interpolant automaton has 40 states [2019-05-23 09:22:22,033 INFO L146 ILogger]: Constructing interpolant automaton starting with 40 interpolants. [2019-05-23 09:22:22,034 INFO L146 ILogger]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 09:22:22,034 INFO L146 ILogger]: Start difference. First operand 81 states and 81 transitions. Second operand 40 states. [2019-05-23 09:22:22,133 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:22,133 INFO L146 ILogger]: Finished difference Result 84 states and 84 transitions. [2019-05-23 09:22:22,134 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-05-23 09:22:22,134 INFO L146 ILogger]: Start accepts. Automaton has 40 states. Word has length 80 [2019-05-23 09:22:22,134 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:22,135 INFO L146 ILogger]: With dead ends: 84 [2019-05-23 09:22:22,135 INFO L146 ILogger]: Without dead ends: 84 [2019-05-23 09:22:22,136 INFO L146 ILogger]: 0 DeclaredPredicates, 79 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2019-05-23 09:22:22,136 INFO L146 ILogger]: Start minimizeSevpa. Operand 84 states. [2019-05-23 09:22:22,138 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 84 to 83. [2019-05-23 09:22:22,138 INFO L146 ILogger]: Start removeUnreachable. Operand 83 states. [2019-05-23 09:22:22,138 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 83 states to 83 states and 83 transitions. [2019-05-23 09:22:22,139 INFO L146 ILogger]: Start accepts. Automaton has 83 states and 83 transitions. Word has length 80 [2019-05-23 09:22:22,139 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:22,139 INFO L146 ILogger]: Abstraction has 83 states and 83 transitions. [2019-05-23 09:22:22,139 INFO L146 ILogger]: Interpolant automaton has 40 states. [2019-05-23 09:22:22,139 INFO L146 ILogger]: Start isEmpty. Operand 83 states and 83 transitions. [2019-05-23 09:22:22,139 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 83 [2019-05-23 09:22:22,139 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:22,140 INFO L146 ILogger]: trace histogram [38, 38, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:22,140 INFO L146 ILogger]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:22,140 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:22,140 INFO L146 ILogger]: Analyzing trace with hash -1068223324, now seen corresponding path program 38 times [2019-05-23 09:22:22,141 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:22,149 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:22,150 INFO L146 ILogger]: Trace formula consists of 125 conjuncts, 40 conjunts are in the unsatisfiable core [2019-05-23 09:22:22,151 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:22,825 INFO L146 ILogger]: Checked inductivity of 1444 backedges. 0 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:22,825 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:22,825 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2019-05-23 09:22:22,826 INFO L146 ILogger]: Interpolant automaton has 41 states [2019-05-23 09:22:22,826 INFO L146 ILogger]: Constructing interpolant automaton starting with 41 interpolants. [2019-05-23 09:22:22,826 INFO L146 ILogger]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 09:22:22,826 INFO L146 ILogger]: Start difference. First operand 83 states and 83 transitions. Second operand 41 states. [2019-05-23 09:22:22,935 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:22,935 INFO L146 ILogger]: Finished difference Result 86 states and 86 transitions. [2019-05-23 09:22:22,936 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2019-05-23 09:22:22,936 INFO L146 ILogger]: Start accepts. Automaton has 41 states. Word has length 82 [2019-05-23 09:22:22,936 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:22,937 INFO L146 ILogger]: With dead ends: 86 [2019-05-23 09:22:22,937 INFO L146 ILogger]: Without dead ends: 86 [2019-05-23 09:22:22,938 INFO L146 ILogger]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2019-05-23 09:22:22,938 INFO L146 ILogger]: Start minimizeSevpa. Operand 86 states. [2019-05-23 09:22:22,939 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 86 to 85. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Start removeUnreachable. Operand 85 states. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 82 [2019-05-23 09:22:22,940 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Abstraction has 85 states and 85 transitions. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Interpolant automaton has 41 states. [2019-05-23 09:22:22,940 INFO L146 ILogger]: Start isEmpty. Operand 85 states and 85 transitions. [2019-05-23 09:22:22,941 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 85 [2019-05-23 09:22:22,941 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:22,941 INFO L146 ILogger]: trace histogram [39, 39, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:22,941 INFO L146 ILogger]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:22,941 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:22,941 INFO L146 ILogger]: Analyzing trace with hash 1479229955, now seen corresponding path program 39 times [2019-05-23 09:22:22,942 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:22,951 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:22,952 INFO L146 ILogger]: Trace formula consists of 128 conjuncts, 41 conjunts are in the unsatisfiable core [2019-05-23 09:22:22,954 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:23,569 INFO L146 ILogger]: Checked inductivity of 1521 backedges. 0 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:23,569 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:23,569 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2019-05-23 09:22:23,569 INFO L146 ILogger]: Interpolant automaton has 42 states [2019-05-23 09:22:23,570 INFO L146 ILogger]: Constructing interpolant automaton starting with 42 interpolants. [2019-05-23 09:22:23,570 INFO L146 ILogger]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 09:22:23,571 INFO L146 ILogger]: Start difference. First operand 85 states and 85 transitions. Second operand 42 states. [2019-05-23 09:22:23,703 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:23,703 INFO L146 ILogger]: Finished difference Result 88 states and 88 transitions. [2019-05-23 09:22:23,703 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-05-23 09:22:23,704 INFO L146 ILogger]: Start accepts. Automaton has 42 states. Word has length 84 [2019-05-23 09:22:23,704 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:23,704 INFO L146 ILogger]: With dead ends: 88 [2019-05-23 09:22:23,704 INFO L146 ILogger]: Without dead ends: 88 [2019-05-23 09:22:23,705 INFO L146 ILogger]: 0 DeclaredPredicates, 83 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2019-05-23 09:22:23,706 INFO L146 ILogger]: Start minimizeSevpa. Operand 88 states. [2019-05-23 09:22:23,707 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 88 to 87. [2019-05-23 09:22:23,708 INFO L146 ILogger]: Start removeUnreachable. Operand 87 states. [2019-05-23 09:22:23,708 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2019-05-23 09:22:23,708 INFO L146 ILogger]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 84 [2019-05-23 09:22:23,708 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:23,709 INFO L146 ILogger]: Abstraction has 87 states and 87 transitions. [2019-05-23 09:22:23,709 INFO L146 ILogger]: Interpolant automaton has 42 states. [2019-05-23 09:22:23,709 INFO L146 ILogger]: Start isEmpty. Operand 87 states and 87 transitions. [2019-05-23 09:22:23,709 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 87 [2019-05-23 09:22:23,709 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:23,709 INFO L146 ILogger]: trace histogram [40, 40, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:23,710 INFO L146 ILogger]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:23,710 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:23,710 INFO L146 ILogger]: Analyzing trace with hash 1450472354, now seen corresponding path program 40 times [2019-05-23 09:22:23,711 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:23,720 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:23,721 INFO L146 ILogger]: Trace formula consists of 131 conjuncts, 42 conjunts are in the unsatisfiable core [2019-05-23 09:22:23,722 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:24,479 INFO L146 ILogger]: Checked inductivity of 1600 backedges. 0 proven. 1600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:24,479 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:24,479 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2019-05-23 09:22:24,479 INFO L146 ILogger]: Interpolant automaton has 43 states [2019-05-23 09:22:24,480 INFO L146 ILogger]: Constructing interpolant automaton starting with 43 interpolants. [2019-05-23 09:22:24,480 INFO L146 ILogger]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 09:22:24,480 INFO L146 ILogger]: Start difference. First operand 87 states and 87 transitions. Second operand 43 states. [2019-05-23 09:22:24,619 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:24,619 INFO L146 ILogger]: Finished difference Result 90 states and 90 transitions. [2019-05-23 09:22:24,620 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-05-23 09:22:24,620 INFO L146 ILogger]: Start accepts. Automaton has 43 states. Word has length 86 [2019-05-23 09:22:24,620 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:24,621 INFO L146 ILogger]: With dead ends: 90 [2019-05-23 09:22:24,621 INFO L146 ILogger]: Without dead ends: 90 [2019-05-23 09:22:24,622 INFO L146 ILogger]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2019-05-23 09:22:24,622 INFO L146 ILogger]: Start minimizeSevpa. Operand 90 states. [2019-05-23 09:22:24,624 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 90 to 89. [2019-05-23 09:22:24,624 INFO L146 ILogger]: Start removeUnreachable. Operand 89 states. [2019-05-23 09:22:24,625 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2019-05-23 09:22:24,625 INFO L146 ILogger]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 86 [2019-05-23 09:22:24,625 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:24,625 INFO L146 ILogger]: Abstraction has 89 states and 89 transitions. [2019-05-23 09:22:24,625 INFO L146 ILogger]: Interpolant automaton has 43 states. [2019-05-23 09:22:24,625 INFO L146 ILogger]: Start isEmpty. Operand 89 states and 89 transitions. [2019-05-23 09:22:24,626 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 89 [2019-05-23 09:22:24,626 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:24,626 INFO L146 ILogger]: trace histogram [41, 41, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:24,626 INFO L146 ILogger]: === Iteration 42 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:24,626 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:24,626 INFO L146 ILogger]: Analyzing trace with hash -415778431, now seen corresponding path program 41 times [2019-05-23 09:22:24,627 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:24,636 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:24,637 INFO L146 ILogger]: Trace formula consists of 134 conjuncts, 43 conjunts are in the unsatisfiable core [2019-05-23 09:22:24,639 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:25,397 INFO L146 ILogger]: Checked inductivity of 1681 backedges. 0 proven. 1681 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:25,398 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:25,398 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2019-05-23 09:22:25,398 INFO L146 ILogger]: Interpolant automaton has 44 states [2019-05-23 09:22:25,398 INFO L146 ILogger]: Constructing interpolant automaton starting with 44 interpolants. [2019-05-23 09:22:25,399 INFO L146 ILogger]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-05-23 09:22:25,399 INFO L146 ILogger]: Start difference. First operand 89 states and 89 transitions. Second operand 44 states. [2019-05-23 09:22:25,507 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:25,507 INFO L146 ILogger]: Finished difference Result 92 states and 92 transitions. [2019-05-23 09:22:25,507 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-05-23 09:22:25,508 INFO L146 ILogger]: Start accepts. Automaton has 44 states. Word has length 88 [2019-05-23 09:22:25,508 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:25,509 INFO L146 ILogger]: With dead ends: 92 [2019-05-23 09:22:25,509 INFO L146 ILogger]: Without dead ends: 92 [2019-05-23 09:22:25,510 INFO L146 ILogger]: 0 DeclaredPredicates, 87 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2019-05-23 09:22:25,510 INFO L146 ILogger]: Start minimizeSevpa. Operand 92 states. [2019-05-23 09:22:25,511 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 92 to 91. [2019-05-23 09:22:25,511 INFO L146 ILogger]: Start removeUnreachable. Operand 91 states. [2019-05-23 09:22:25,511 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2019-05-23 09:22:25,512 INFO L146 ILogger]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 88 [2019-05-23 09:22:25,512 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:25,512 INFO L146 ILogger]: Abstraction has 91 states and 91 transitions. [2019-05-23 09:22:25,512 INFO L146 ILogger]: Interpolant automaton has 44 states. [2019-05-23 09:22:25,512 INFO L146 ILogger]: Start isEmpty. Operand 91 states and 91 transitions. [2019-05-23 09:22:25,512 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 91 [2019-05-23 09:22:25,512 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:25,512 INFO L146 ILogger]: trace histogram [42, 42, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:25,513 INFO L146 ILogger]: === Iteration 43 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:25,513 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:25,513 INFO L146 ILogger]: Analyzing trace with hash 1413546912, now seen corresponding path program 42 times [2019-05-23 09:22:25,513 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:25,523 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:25,524 INFO L146 ILogger]: Trace formula consists of 137 conjuncts, 44 conjunts are in the unsatisfiable core [2019-05-23 09:22:25,526 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:26,732 INFO L146 ILogger]: Checked inductivity of 1764 backedges. 0 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:26,732 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:26,732 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2019-05-23 09:22:26,732 INFO L146 ILogger]: Interpolant automaton has 45 states [2019-05-23 09:22:26,733 INFO L146 ILogger]: Constructing interpolant automaton starting with 45 interpolants. [2019-05-23 09:22:26,733 INFO L146 ILogger]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-05-23 09:22:26,734 INFO L146 ILogger]: Start difference. First operand 91 states and 91 transitions. Second operand 45 states. [2019-05-23 09:22:26,840 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:26,840 INFO L146 ILogger]: Finished difference Result 94 states and 94 transitions. [2019-05-23 09:22:26,841 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-05-23 09:22:26,841 INFO L146 ILogger]: Start accepts. Automaton has 45 states. Word has length 90 [2019-05-23 09:22:26,841 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:26,842 INFO L146 ILogger]: With dead ends: 94 [2019-05-23 09:22:26,842 INFO L146 ILogger]: Without dead ends: 94 [2019-05-23 09:22:26,843 INFO L146 ILogger]: 0 DeclaredPredicates, 89 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2019-05-23 09:22:26,844 INFO L146 ILogger]: Start minimizeSevpa. Operand 94 states. [2019-05-23 09:22:26,845 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 94 to 93. [2019-05-23 09:22:26,845 INFO L146 ILogger]: Start removeUnreachable. Operand 93 states. [2019-05-23 09:22:26,846 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 93 states to 93 states and 93 transitions. [2019-05-23 09:22:26,846 INFO L146 ILogger]: Start accepts. Automaton has 93 states and 93 transitions. Word has length 90 [2019-05-23 09:22:26,846 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:26,846 INFO L146 ILogger]: Abstraction has 93 states and 93 transitions. [2019-05-23 09:22:26,846 INFO L146 ILogger]: Interpolant automaton has 45 states. [2019-05-23 09:22:26,847 INFO L146 ILogger]: Start isEmpty. Operand 93 states and 93 transitions. [2019-05-23 09:22:26,847 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 93 [2019-05-23 09:22:26,847 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:26,847 INFO L146 ILogger]: trace histogram [43, 43, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:26,847 INFO L146 ILogger]: === Iteration 44 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:26,848 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:26,848 INFO L146 ILogger]: Analyzing trace with hash -1541389825, now seen corresponding path program 43 times [2019-05-23 09:22:26,848 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:26,856 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:26,858 INFO L146 ILogger]: Trace formula consists of 140 conjuncts, 45 conjunts are in the unsatisfiable core [2019-05-23 09:22:26,859 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:27,609 INFO L146 ILogger]: Checked inductivity of 1849 backedges. 0 proven. 1849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:27,610 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:27,610 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2019-05-23 09:22:27,610 INFO L146 ILogger]: Interpolant automaton has 46 states [2019-05-23 09:22:27,610 INFO L146 ILogger]: Constructing interpolant automaton starting with 46 interpolants. [2019-05-23 09:22:27,611 INFO L146 ILogger]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-05-23 09:22:27,611 INFO L146 ILogger]: Start difference. First operand 93 states and 93 transitions. Second operand 46 states. [2019-05-23 09:22:27,727 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:27,727 INFO L146 ILogger]: Finished difference Result 96 states and 96 transitions. [2019-05-23 09:22:27,728 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-05-23 09:22:27,728 INFO L146 ILogger]: Start accepts. Automaton has 46 states. Word has length 92 [2019-05-23 09:22:27,728 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:27,729 INFO L146 ILogger]: With dead ends: 96 [2019-05-23 09:22:27,729 INFO L146 ILogger]: Without dead ends: 96 [2019-05-23 09:22:27,729 INFO L146 ILogger]: 0 DeclaredPredicates, 91 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2019-05-23 09:22:27,729 INFO L146 ILogger]: Start minimizeSevpa. Operand 96 states. [2019-05-23 09:22:27,731 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 96 to 95. [2019-05-23 09:22:27,731 INFO L146 ILogger]: Start removeUnreachable. Operand 95 states. [2019-05-23 09:22:27,731 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2019-05-23 09:22:27,731 INFO L146 ILogger]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 92 [2019-05-23 09:22:27,732 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:27,732 INFO L146 ILogger]: Abstraction has 95 states and 95 transitions. [2019-05-23 09:22:27,732 INFO L146 ILogger]: Interpolant automaton has 46 states. [2019-05-23 09:22:27,732 INFO L146 ILogger]: Start isEmpty. Operand 95 states and 95 transitions. [2019-05-23 09:22:27,732 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 95 [2019-05-23 09:22:27,732 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:27,733 INFO L146 ILogger]: trace histogram [44, 44, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:27,733 INFO L146 ILogger]: === Iteration 45 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:27,733 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:27,733 INFO L146 ILogger]: Analyzing trace with hash 2032755870, now seen corresponding path program 44 times [2019-05-23 09:22:27,734 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:27,743 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:27,744 INFO L146 ILogger]: Trace formula consists of 143 conjuncts, 46 conjunts are in the unsatisfiable core [2019-05-23 09:22:27,746 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:28,535 INFO L146 ILogger]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:28,536 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:28,536 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2019-05-23 09:22:28,536 INFO L146 ILogger]: Interpolant automaton has 47 states [2019-05-23 09:22:28,536 INFO L146 ILogger]: Constructing interpolant automaton starting with 47 interpolants. [2019-05-23 09:22:28,537 INFO L146 ILogger]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 09:22:28,537 INFO L146 ILogger]: Start difference. First operand 95 states and 95 transitions. Second operand 47 states. [2019-05-23 09:22:28,651 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:28,651 INFO L146 ILogger]: Finished difference Result 98 states and 98 transitions. [2019-05-23 09:22:28,659 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-05-23 09:22:28,659 INFO L146 ILogger]: Start accepts. Automaton has 47 states. Word has length 94 [2019-05-23 09:22:28,659 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:28,660 INFO L146 ILogger]: With dead ends: 98 [2019-05-23 09:22:28,660 INFO L146 ILogger]: Without dead ends: 98 [2019-05-23 09:22:28,660 INFO L146 ILogger]: 0 DeclaredPredicates, 93 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2019-05-23 09:22:28,661 INFO L146 ILogger]: Start minimizeSevpa. Operand 98 states. [2019-05-23 09:22:28,662 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-05-23 09:22:28,662 INFO L146 ILogger]: Start removeUnreachable. Operand 97 states. [2019-05-23 09:22:28,663 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2019-05-23 09:22:28,663 INFO L146 ILogger]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 94 [2019-05-23 09:22:28,663 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:28,663 INFO L146 ILogger]: Abstraction has 97 states and 97 transitions. [2019-05-23 09:22:28,663 INFO L146 ILogger]: Interpolant automaton has 47 states. [2019-05-23 09:22:28,663 INFO L146 ILogger]: Start isEmpty. Operand 97 states and 97 transitions. [2019-05-23 09:22:28,664 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 97 [2019-05-23 09:22:28,664 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:28,664 INFO L146 ILogger]: trace histogram [45, 45, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:28,664 INFO L146 ILogger]: === Iteration 46 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:28,665 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:28,665 INFO L146 ILogger]: Analyzing trace with hash 812931965, now seen corresponding path program 45 times [2019-05-23 09:22:28,665 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:28,674 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:28,676 INFO L146 ILogger]: Trace formula consists of 146 conjuncts, 47 conjunts are in the unsatisfiable core [2019-05-23 09:22:28,677 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:30,012 INFO L146 ILogger]: Checked inductivity of 2025 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:30,012 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:30,012 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2019-05-23 09:22:30,013 INFO L146 ILogger]: Interpolant automaton has 48 states [2019-05-23 09:22:30,013 INFO L146 ILogger]: Constructing interpolant automaton starting with 48 interpolants. [2019-05-23 09:22:30,013 INFO L146 ILogger]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-05-23 09:22:30,013 INFO L146 ILogger]: Start difference. First operand 97 states and 97 transitions. Second operand 48 states. [2019-05-23 09:22:30,132 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:30,132 INFO L146 ILogger]: Finished difference Result 100 states and 100 transitions. [2019-05-23 09:22:30,133 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-05-23 09:22:30,133 INFO L146 ILogger]: Start accepts. Automaton has 48 states. Word has length 96 [2019-05-23 09:22:30,133 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:30,134 INFO L146 ILogger]: With dead ends: 100 [2019-05-23 09:22:30,134 INFO L146 ILogger]: Without dead ends: 100 [2019-05-23 09:22:30,135 INFO L146 ILogger]: 0 DeclaredPredicates, 95 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2019-05-23 09:22:30,135 INFO L146 ILogger]: Start minimizeSevpa. Operand 100 states. [2019-05-23 09:22:30,136 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 100 to 99. [2019-05-23 09:22:30,137 INFO L146 ILogger]: Start removeUnreachable. Operand 99 states. [2019-05-23 09:22:30,137 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2019-05-23 09:22:30,137 INFO L146 ILogger]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 96 [2019-05-23 09:22:30,138 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:30,138 INFO L146 ILogger]: Abstraction has 99 states and 99 transitions. [2019-05-23 09:22:30,138 INFO L146 ILogger]: Interpolant automaton has 48 states. [2019-05-23 09:22:30,138 INFO L146 ILogger]: Start isEmpty. Operand 99 states and 99 transitions. [2019-05-23 09:22:30,138 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 99 [2019-05-23 09:22:30,138 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:30,139 INFO L146 ILogger]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:30,139 INFO L146 ILogger]: === Iteration 47 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:30,139 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:30,139 INFO L146 ILogger]: Analyzing trace with hash 1088231068, now seen corresponding path program 46 times [2019-05-23 09:22:30,140 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:30,148 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:30,150 INFO L146 ILogger]: Trace formula consists of 149 conjuncts, 48 conjunts are in the unsatisfiable core [2019-05-23 09:22:30,152 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:31,043 INFO L146 ILogger]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:31,044 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:31,044 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2019-05-23 09:22:31,044 INFO L146 ILogger]: Interpolant automaton has 49 states [2019-05-23 09:22:31,044 INFO L146 ILogger]: Constructing interpolant automaton starting with 49 interpolants. [2019-05-23 09:22:31,045 INFO L146 ILogger]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 09:22:31,045 INFO L146 ILogger]: Start difference. First operand 99 states and 99 transitions. Second operand 49 states. [2019-05-23 09:22:31,213 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:31,214 INFO L146 ILogger]: Finished difference Result 102 states and 102 transitions. [2019-05-23 09:22:31,214 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-05-23 09:22:31,214 INFO L146 ILogger]: Start accepts. Automaton has 49 states. Word has length 98 [2019-05-23 09:22:31,214 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:31,215 INFO L146 ILogger]: With dead ends: 102 [2019-05-23 09:22:31,215 INFO L146 ILogger]: Without dead ends: 102 [2019-05-23 09:22:31,215 INFO L146 ILogger]: 0 DeclaredPredicates, 97 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2019-05-23 09:22:31,215 INFO L146 ILogger]: Start minimizeSevpa. Operand 102 states. [2019-05-23 09:22:31,217 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 102 to 101. [2019-05-23 09:22:31,217 INFO L146 ILogger]: Start removeUnreachable. Operand 101 states. [2019-05-23 09:22:31,218 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2019-05-23 09:22:31,218 INFO L146 ILogger]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 98 [2019-05-23 09:22:31,218 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:31,219 INFO L146 ILogger]: Abstraction has 101 states and 101 transitions. [2019-05-23 09:22:31,219 INFO L146 ILogger]: Interpolant automaton has 49 states. [2019-05-23 09:22:31,219 INFO L146 ILogger]: Start isEmpty. Operand 101 states and 101 transitions. [2019-05-23 09:22:31,219 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 101 [2019-05-23 09:22:31,220 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:31,220 INFO L146 ILogger]: trace histogram [47, 47, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:31,220 INFO L146 ILogger]: === Iteration 48 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:31,220 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:31,220 INFO L146 ILogger]: Analyzing trace with hash -637303301, now seen corresponding path program 47 times [2019-05-23 09:22:31,221 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:31,230 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:31,231 INFO L146 ILogger]: Trace formula consists of 152 conjuncts, 49 conjunts are in the unsatisfiable core [2019-05-23 09:22:31,233 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:32,241 INFO L146 ILogger]: Checked inductivity of 2209 backedges. 0 proven. 2209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:32,242 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:32,242 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2019-05-23 09:22:32,242 INFO L146 ILogger]: Interpolant automaton has 50 states [2019-05-23 09:22:32,242 INFO L146 ILogger]: Constructing interpolant automaton starting with 50 interpolants. [2019-05-23 09:22:32,243 INFO L146 ILogger]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-05-23 09:22:32,243 INFO L146 ILogger]: Start difference. First operand 101 states and 101 transitions. Second operand 50 states. [2019-05-23 09:22:32,384 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:32,385 INFO L146 ILogger]: Finished difference Result 104 states and 104 transitions. [2019-05-23 09:22:32,386 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-05-23 09:22:32,386 INFO L146 ILogger]: Start accepts. Automaton has 50 states. Word has length 100 [2019-05-23 09:22:32,386 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:32,387 INFO L146 ILogger]: With dead ends: 104 [2019-05-23 09:22:32,387 INFO L146 ILogger]: Without dead ends: 104 [2019-05-23 09:22:32,388 INFO L146 ILogger]: 0 DeclaredPredicates, 99 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2019-05-23 09:22:32,388 INFO L146 ILogger]: Start minimizeSevpa. Operand 104 states. [2019-05-23 09:22:32,390 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 104 to 103. [2019-05-23 09:22:32,390 INFO L146 ILogger]: Start removeUnreachable. Operand 103 states. [2019-05-23 09:22:32,390 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2019-05-23 09:22:32,390 INFO L146 ILogger]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 100 [2019-05-23 09:22:32,391 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:32,391 INFO L146 ILogger]: Abstraction has 103 states and 103 transitions. [2019-05-23 09:22:32,391 INFO L146 ILogger]: Interpolant automaton has 50 states. [2019-05-23 09:22:32,391 INFO L146 ILogger]: Start isEmpty. Operand 103 states and 103 transitions. [2019-05-23 09:22:32,391 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 103 [2019-05-23 09:22:32,392 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:32,392 INFO L146 ILogger]: trace histogram [48, 48, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:32,392 INFO L146 ILogger]: === Iteration 49 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:32,392 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:32,392 INFO L146 ILogger]: Analyzing trace with hash -1018455654, now seen corresponding path program 48 times [2019-05-23 09:22:32,393 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:32,402 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:32,403 INFO L146 ILogger]: Trace formula consists of 155 conjuncts, 50 conjunts are in the unsatisfiable core [2019-05-23 09:22:32,405 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:33,483 INFO L146 ILogger]: Checked inductivity of 2304 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:33,483 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:33,483 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2019-05-23 09:22:33,483 INFO L146 ILogger]: Interpolant automaton has 51 states [2019-05-23 09:22:33,484 INFO L146 ILogger]: Constructing interpolant automaton starting with 51 interpolants. [2019-05-23 09:22:33,484 INFO L146 ILogger]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 09:22:33,484 INFO L146 ILogger]: Start difference. First operand 103 states and 103 transitions. Second operand 51 states. [2019-05-23 09:22:33,636 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:33,637 INFO L146 ILogger]: Finished difference Result 106 states and 106 transitions. [2019-05-23 09:22:33,637 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-05-23 09:22:33,637 INFO L146 ILogger]: Start accepts. Automaton has 51 states. Word has length 102 [2019-05-23 09:22:33,638 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:33,638 INFO L146 ILogger]: With dead ends: 106 [2019-05-23 09:22:33,639 INFO L146 ILogger]: Without dead ends: 106 [2019-05-23 09:22:33,639 INFO L146 ILogger]: 0 DeclaredPredicates, 101 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2019-05-23 09:22:33,640 INFO L146 ILogger]: Start minimizeSevpa. Operand 106 states. [2019-05-23 09:22:33,641 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 106 to 105. [2019-05-23 09:22:33,642 INFO L146 ILogger]: Start removeUnreachable. Operand 105 states. [2019-05-23 09:22:33,642 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2019-05-23 09:22:33,642 INFO L146 ILogger]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 102 [2019-05-23 09:22:33,642 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:33,643 INFO L146 ILogger]: Abstraction has 105 states and 105 transitions. [2019-05-23 09:22:33,643 INFO L146 ILogger]: Interpolant automaton has 51 states. [2019-05-23 09:22:33,643 INFO L146 ILogger]: Start isEmpty. Operand 105 states and 105 transitions. [2019-05-23 09:22:33,643 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 105 [2019-05-23 09:22:33,643 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:33,644 INFO L146 ILogger]: trace histogram [49, 49, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:33,644 INFO L146 ILogger]: === Iteration 50 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:33,644 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:33,644 INFO L146 ILogger]: Analyzing trace with hash 2061320569, now seen corresponding path program 49 times [2019-05-23 09:22:33,645 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:33,654 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:33,655 INFO L146 ILogger]: Trace formula consists of 158 conjuncts, 51 conjunts are in the unsatisfiable core [2019-05-23 09:22:33,657 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:34,769 INFO L146 ILogger]: Checked inductivity of 2401 backedges. 0 proven. 2401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:34,769 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:34,769 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2019-05-23 09:22:34,769 INFO L146 ILogger]: Interpolant automaton has 52 states [2019-05-23 09:22:34,770 INFO L146 ILogger]: Constructing interpolant automaton starting with 52 interpolants. [2019-05-23 09:22:34,770 INFO L146 ILogger]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-05-23 09:22:34,770 INFO L146 ILogger]: Start difference. First operand 105 states and 105 transitions. Second operand 52 states. [2019-05-23 09:22:34,903 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:34,903 INFO L146 ILogger]: Finished difference Result 108 states and 108 transitions. [2019-05-23 09:22:34,904 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2019-05-23 09:22:34,904 INFO L146 ILogger]: Start accepts. Automaton has 52 states. Word has length 104 [2019-05-23 09:22:34,904 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:34,905 INFO L146 ILogger]: With dead ends: 108 [2019-05-23 09:22:34,905 INFO L146 ILogger]: Without dead ends: 108 [2019-05-23 09:22:34,906 INFO L146 ILogger]: 0 DeclaredPredicates, 103 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2019-05-23 09:22:34,906 INFO L146 ILogger]: Start minimizeSevpa. Operand 108 states. [2019-05-23 09:22:34,908 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 108 to 107. [2019-05-23 09:22:34,909 INFO L146 ILogger]: Start removeUnreachable. Operand 107 states. [2019-05-23 09:22:34,909 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2019-05-23 09:22:34,909 INFO L146 ILogger]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 104 [2019-05-23 09:22:34,909 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:34,909 INFO L146 ILogger]: Abstraction has 107 states and 107 transitions. [2019-05-23 09:22:34,910 INFO L146 ILogger]: Interpolant automaton has 52 states. [2019-05-23 09:22:34,910 INFO L146 ILogger]: Start isEmpty. Operand 107 states and 107 transitions. [2019-05-23 09:22:34,910 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 107 [2019-05-23 09:22:34,910 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:34,910 INFO L146 ILogger]: trace histogram [50, 50, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:34,911 INFO L146 ILogger]: === Iteration 51 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:34,911 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:34,911 INFO L146 ILogger]: Analyzing trace with hash -1801163368, now seen corresponding path program 50 times [2019-05-23 09:22:34,912 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:34,920 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:34,922 INFO L146 ILogger]: Trace formula consists of 161 conjuncts, 52 conjunts are in the unsatisfiable core [2019-05-23 09:22:34,923 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:36,022 INFO L146 ILogger]: Checked inductivity of 2500 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:36,022 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:36,022 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2019-05-23 09:22:36,022 INFO L146 ILogger]: Interpolant automaton has 53 states [2019-05-23 09:22:36,023 INFO L146 ILogger]: Constructing interpolant automaton starting with 53 interpolants. [2019-05-23 09:22:36,023 INFO L146 ILogger]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-05-23 09:22:36,023 INFO L146 ILogger]: Start difference. First operand 107 states and 107 transitions. Second operand 53 states. [2019-05-23 09:22:36,283 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:36,283 INFO L146 ILogger]: Finished difference Result 110 states and 110 transitions. [2019-05-23 09:22:36,284 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2019-05-23 09:22:36,284 INFO L146 ILogger]: Start accepts. Automaton has 53 states. Word has length 106 [2019-05-23 09:22:36,284 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:36,285 INFO L146 ILogger]: With dead ends: 110 [2019-05-23 09:22:36,285 INFO L146 ILogger]: Without dead ends: 110 [2019-05-23 09:22:36,285 INFO L146 ILogger]: 0 DeclaredPredicates, 105 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2019-05-23 09:22:36,286 INFO L146 ILogger]: Start minimizeSevpa. Operand 110 states. [2019-05-23 09:22:36,287 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 110 to 109. [2019-05-23 09:22:36,288 INFO L146 ILogger]: Start removeUnreachable. Operand 109 states. [2019-05-23 09:22:36,288 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2019-05-23 09:22:36,288 INFO L146 ILogger]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 106 [2019-05-23 09:22:36,289 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:36,289 INFO L146 ILogger]: Abstraction has 109 states and 109 transitions. [2019-05-23 09:22:36,289 INFO L146 ILogger]: Interpolant automaton has 53 states. [2019-05-23 09:22:36,289 INFO L146 ILogger]: Start isEmpty. Operand 109 states and 109 transitions. [2019-05-23 09:22:36,289 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 109 [2019-05-23 09:22:36,290 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:36,290 INFO L146 ILogger]: trace histogram [51, 51, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:36,290 INFO L146 ILogger]: === Iteration 52 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:36,290 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:36,290 INFO L146 ILogger]: Analyzing trace with hash 1498484215, now seen corresponding path program 51 times [2019-05-23 09:22:36,291 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:36,301 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:36,303 INFO L146 ILogger]: Trace formula consists of 164 conjuncts, 53 conjunts are in the unsatisfiable core [2019-05-23 09:22:36,304 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:37,799 INFO L146 ILogger]: Checked inductivity of 2601 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:37,800 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:37,800 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2019-05-23 09:22:37,800 INFO L146 ILogger]: Interpolant automaton has 54 states [2019-05-23 09:22:37,800 INFO L146 ILogger]: Constructing interpolant automaton starting with 54 interpolants. [2019-05-23 09:22:37,801 INFO L146 ILogger]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2019-05-23 09:22:37,801 INFO L146 ILogger]: Start difference. First operand 109 states and 109 transitions. Second operand 54 states. [2019-05-23 09:22:37,950 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:37,950 INFO L146 ILogger]: Finished difference Result 112 states and 112 transitions. [2019-05-23 09:22:37,950 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-05-23 09:22:37,951 INFO L146 ILogger]: Start accepts. Automaton has 54 states. Word has length 108 [2019-05-23 09:22:37,951 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:37,952 INFO L146 ILogger]: With dead ends: 112 [2019-05-23 09:22:37,952 INFO L146 ILogger]: Without dead ends: 112 [2019-05-23 09:22:37,952 INFO L146 ILogger]: 0 DeclaredPredicates, 107 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2019-05-23 09:22:37,953 INFO L146 ILogger]: Start minimizeSevpa. Operand 112 states. [2019-05-23 09:22:37,955 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 112 to 111. [2019-05-23 09:22:37,955 INFO L146 ILogger]: Start removeUnreachable. Operand 111 states. [2019-05-23 09:22:37,955 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2019-05-23 09:22:37,956 INFO L146 ILogger]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 108 [2019-05-23 09:22:37,956 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:37,956 INFO L146 ILogger]: Abstraction has 111 states and 111 transitions. [2019-05-23 09:22:37,956 INFO L146 ILogger]: Interpolant automaton has 54 states. [2019-05-23 09:22:37,956 INFO L146 ILogger]: Start isEmpty. Operand 111 states and 111 transitions. [2019-05-23 09:22:37,957 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 111 [2019-05-23 09:22:37,957 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:37,957 INFO L146 ILogger]: trace histogram [52, 52, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:37,957 INFO L146 ILogger]: === Iteration 53 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:37,957 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:37,958 INFO L146 ILogger]: Analyzing trace with hash -1521020266, now seen corresponding path program 52 times [2019-05-23 09:22:37,958 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:37,967 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:37,969 INFO L146 ILogger]: Trace formula consists of 167 conjuncts, 54 conjunts are in the unsatisfiable core [2019-05-23 09:22:37,971 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:38,994 INFO L146 ILogger]: Checked inductivity of 2704 backedges. 0 proven. 2704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:38,994 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:38,994 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2019-05-23 09:22:38,995 INFO L146 ILogger]: Interpolant automaton has 55 states [2019-05-23 09:22:38,995 INFO L146 ILogger]: Constructing interpolant automaton starting with 55 interpolants. [2019-05-23 09:22:38,995 INFO L146 ILogger]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2019-05-23 09:22:38,996 INFO L146 ILogger]: Start difference. First operand 111 states and 111 transitions. Second operand 55 states. [2019-05-23 09:22:39,299 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:39,299 INFO L146 ILogger]: Finished difference Result 114 states and 114 transitions. [2019-05-23 09:22:39,300 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-05-23 09:22:39,300 INFO L146 ILogger]: Start accepts. Automaton has 55 states. Word has length 110 [2019-05-23 09:22:39,300 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:39,301 INFO L146 ILogger]: With dead ends: 114 [2019-05-23 09:22:39,301 INFO L146 ILogger]: Without dead ends: 114 [2019-05-23 09:22:39,304 INFO L146 ILogger]: 0 DeclaredPredicates, 109 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2019-05-23 09:22:39,304 INFO L146 ILogger]: Start minimizeSevpa. Operand 114 states. [2019-05-23 09:22:39,305 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 114 to 113. [2019-05-23 09:22:39,305 INFO L146 ILogger]: Start removeUnreachable. Operand 113 states. [2019-05-23 09:22:39,306 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2019-05-23 09:22:39,306 INFO L146 ILogger]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 110 [2019-05-23 09:22:39,306 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:39,306 INFO L146 ILogger]: Abstraction has 113 states and 113 transitions. [2019-05-23 09:22:39,306 INFO L146 ILogger]: Interpolant automaton has 55 states. [2019-05-23 09:22:39,306 INFO L146 ILogger]: Start isEmpty. Operand 113 states and 113 transitions. [2019-05-23 09:22:39,307 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 113 [2019-05-23 09:22:39,307 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:39,307 INFO L146 ILogger]: trace histogram [53, 53, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:39,307 INFO L146 ILogger]: === Iteration 54 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:39,308 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:39,308 INFO L146 ILogger]: Analyzing trace with hash 133065589, now seen corresponding path program 53 times [2019-05-23 09:22:39,308 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:39,317 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:39,319 INFO L146 ILogger]: Trace formula consists of 170 conjuncts, 55 conjunts are in the unsatisfiable core [2019-05-23 09:22:39,321 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:40,551 INFO L146 ILogger]: Checked inductivity of 2809 backedges. 0 proven. 2809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:40,551 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:40,551 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2019-05-23 09:22:40,552 INFO L146 ILogger]: Interpolant automaton has 56 states [2019-05-23 09:22:40,552 INFO L146 ILogger]: Constructing interpolant automaton starting with 56 interpolants. [2019-05-23 09:22:40,553 INFO L146 ILogger]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2019-05-23 09:22:40,553 INFO L146 ILogger]: Start difference. First operand 113 states and 113 transitions. Second operand 56 states. [2019-05-23 09:22:40,782 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:40,783 INFO L146 ILogger]: Finished difference Result 116 states and 116 transitions. [2019-05-23 09:22:40,783 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-05-23 09:22:40,783 INFO L146 ILogger]: Start accepts. Automaton has 56 states. Word has length 112 [2019-05-23 09:22:40,783 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:40,784 INFO L146 ILogger]: With dead ends: 116 [2019-05-23 09:22:40,784 INFO L146 ILogger]: Without dead ends: 116 [2019-05-23 09:22:40,785 INFO L146 ILogger]: 0 DeclaredPredicates, 111 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2019-05-23 09:22:40,785 INFO L146 ILogger]: Start minimizeSevpa. Operand 116 states. [2019-05-23 09:22:40,786 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 116 to 115. [2019-05-23 09:22:40,786 INFO L146 ILogger]: Start removeUnreachable. Operand 115 states. [2019-05-23 09:22:40,787 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2019-05-23 09:22:40,787 INFO L146 ILogger]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 112 [2019-05-23 09:22:40,787 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:40,787 INFO L146 ILogger]: Abstraction has 115 states and 115 transitions. [2019-05-23 09:22:40,787 INFO L146 ILogger]: Interpolant automaton has 56 states. [2019-05-23 09:22:40,787 INFO L146 ILogger]: Start isEmpty. Operand 115 states and 115 transitions. [2019-05-23 09:22:40,788 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 115 [2019-05-23 09:22:40,788 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:40,788 INFO L146 ILogger]: trace histogram [54, 54, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:40,788 INFO L146 ILogger]: === Iteration 55 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:40,789 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:40,789 INFO L146 ILogger]: Analyzing trace with hash 571672724, now seen corresponding path program 54 times [2019-05-23 09:22:40,789 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:40,799 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:40,801 INFO L146 ILogger]: Trace formula consists of 173 conjuncts, 56 conjunts are in the unsatisfiable core [2019-05-23 09:22:40,803 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:42,645 INFO L146 ILogger]: Checked inductivity of 2916 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:42,645 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:42,645 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [56] total 56 [2019-05-23 09:22:42,646 INFO L146 ILogger]: Interpolant automaton has 57 states [2019-05-23 09:22:42,646 INFO L146 ILogger]: Constructing interpolant automaton starting with 57 interpolants. [2019-05-23 09:22:42,646 INFO L146 ILogger]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2019-05-23 09:22:42,646 INFO L146 ILogger]: Start difference. First operand 115 states and 115 transitions. Second operand 57 states. [2019-05-23 09:22:42,954 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:42,954 INFO L146 ILogger]: Finished difference Result 118 states and 118 transitions. [2019-05-23 09:22:42,955 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-05-23 09:22:42,955 INFO L146 ILogger]: Start accepts. Automaton has 57 states. Word has length 114 [2019-05-23 09:22:42,955 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:42,956 INFO L146 ILogger]: With dead ends: 118 [2019-05-23 09:22:42,956 INFO L146 ILogger]: Without dead ends: 118 [2019-05-23 09:22:42,956 INFO L146 ILogger]: 0 DeclaredPredicates, 113 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2019-05-23 09:22:42,956 INFO L146 ILogger]: Start minimizeSevpa. Operand 118 states. [2019-05-23 09:22:42,958 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 118 to 117. [2019-05-23 09:22:42,958 INFO L146 ILogger]: Start removeUnreachable. Operand 117 states. [2019-05-23 09:22:42,958 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2019-05-23 09:22:42,958 INFO L146 ILogger]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 114 [2019-05-23 09:22:42,958 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:42,959 INFO L146 ILogger]: Abstraction has 117 states and 117 transitions. [2019-05-23 09:22:42,959 INFO L146 ILogger]: Interpolant automaton has 57 states. [2019-05-23 09:22:42,959 INFO L146 ILogger]: Start isEmpty. Operand 117 states and 117 transitions. [2019-05-23 09:22:42,959 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 117 [2019-05-23 09:22:42,959 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:42,960 INFO L146 ILogger]: trace histogram [55, 55, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:42,960 INFO L146 ILogger]: === Iteration 56 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:42,960 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:42,960 INFO L146 ILogger]: Analyzing trace with hash 1166334451, now seen corresponding path program 55 times [2019-05-23 09:22:42,961 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:42,969 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:42,971 INFO L146 ILogger]: Trace formula consists of 176 conjuncts, 57 conjunts are in the unsatisfiable core [2019-05-23 09:22:42,973 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:44,134 INFO L146 ILogger]: Checked inductivity of 3025 backedges. 0 proven. 3025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:44,134 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:44,134 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2019-05-23 09:22:44,135 INFO L146 ILogger]: Interpolant automaton has 58 states [2019-05-23 09:22:44,135 INFO L146 ILogger]: Constructing interpolant automaton starting with 58 interpolants. [2019-05-23 09:22:44,135 INFO L146 ILogger]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-05-23 09:22:44,135 INFO L146 ILogger]: Start difference. First operand 117 states and 117 transitions. Second operand 58 states. [2019-05-23 09:22:44,286 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:44,287 INFO L146 ILogger]: Finished difference Result 120 states and 120 transitions. [2019-05-23 09:22:44,287 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-05-23 09:22:44,287 INFO L146 ILogger]: Start accepts. Automaton has 58 states. Word has length 116 [2019-05-23 09:22:44,287 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:44,288 INFO L146 ILogger]: With dead ends: 120 [2019-05-23 09:22:44,288 INFO L146 ILogger]: Without dead ends: 120 [2019-05-23 09:22:44,289 INFO L146 ILogger]: 0 DeclaredPredicates, 115 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2019-05-23 09:22:44,289 INFO L146 ILogger]: Start minimizeSevpa. Operand 120 states. [2019-05-23 09:22:44,291 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 120 to 119. [2019-05-23 09:22:44,291 INFO L146 ILogger]: Start removeUnreachable. Operand 119 states. [2019-05-23 09:22:44,291 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2019-05-23 09:22:44,292 INFO L146 ILogger]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 116 [2019-05-23 09:22:44,292 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:44,292 INFO L146 ILogger]: Abstraction has 119 states and 119 transitions. [2019-05-23 09:22:44,292 INFO L146 ILogger]: Interpolant automaton has 58 states. [2019-05-23 09:22:44,292 INFO L146 ILogger]: Start isEmpty. Operand 119 states and 119 transitions. [2019-05-23 09:22:44,292 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 119 [2019-05-23 09:22:44,292 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:44,293 INFO L146 ILogger]: trace histogram [56, 56, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:44,293 INFO L146 ILogger]: === Iteration 57 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:44,293 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:44,293 INFO L146 ILogger]: Analyzing trace with hash 1405603730, now seen corresponding path program 56 times [2019-05-23 09:22:44,293 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:44,307 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:44,309 INFO L146 ILogger]: Trace formula consists of 179 conjuncts, 58 conjunts are in the unsatisfiable core [2019-05-23 09:22:44,311 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:45,557 INFO L146 ILogger]: Checked inductivity of 3136 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:45,558 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:45,558 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [58] total 58 [2019-05-23 09:22:45,558 INFO L146 ILogger]: Interpolant automaton has 59 states [2019-05-23 09:22:45,559 INFO L146 ILogger]: Constructing interpolant automaton starting with 59 interpolants. [2019-05-23 09:22:45,559 INFO L146 ILogger]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-05-23 09:22:45,559 INFO L146 ILogger]: Start difference. First operand 119 states and 119 transitions. Second operand 59 states. [2019-05-23 09:22:45,712 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:45,713 INFO L146 ILogger]: Finished difference Result 122 states and 122 transitions. [2019-05-23 09:22:45,713 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-05-23 09:22:45,713 INFO L146 ILogger]: Start accepts. Automaton has 59 states. Word has length 118 [2019-05-23 09:22:45,714 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:45,714 INFO L146 ILogger]: With dead ends: 122 [2019-05-23 09:22:45,714 INFO L146 ILogger]: Without dead ends: 122 [2019-05-23 09:22:45,715 INFO L146 ILogger]: 0 DeclaredPredicates, 117 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2019-05-23 09:22:45,715 INFO L146 ILogger]: Start minimizeSevpa. Operand 122 states. [2019-05-23 09:22:45,717 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 122 to 121. [2019-05-23 09:22:45,717 INFO L146 ILogger]: Start removeUnreachable. Operand 121 states. [2019-05-23 09:22:45,717 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2019-05-23 09:22:45,717 INFO L146 ILogger]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 118 [2019-05-23 09:22:45,718 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:45,718 INFO L146 ILogger]: Abstraction has 121 states and 121 transitions. [2019-05-23 09:22:45,718 INFO L146 ILogger]: Interpolant automaton has 59 states. [2019-05-23 09:22:45,718 INFO L146 ILogger]: Start isEmpty. Operand 121 states and 121 transitions. [2019-05-23 09:22:45,719 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 121 [2019-05-23 09:22:45,719 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:45,719 INFO L146 ILogger]: trace histogram [57, 57, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:45,719 INFO L146 ILogger]: === Iteration 58 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:45,719 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:45,719 INFO L146 ILogger]: Analyzing trace with hash -584853135, now seen corresponding path program 57 times [2019-05-23 09:22:45,720 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:45,729 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:45,731 INFO L146 ILogger]: Trace formula consists of 182 conjuncts, 59 conjunts are in the unsatisfiable core [2019-05-23 09:22:45,733 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:47,238 INFO L146 ILogger]: Checked inductivity of 3249 backedges. 0 proven. 3249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:47,238 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:47,238 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2019-05-23 09:22:47,239 INFO L146 ILogger]: Interpolant automaton has 60 states [2019-05-23 09:22:47,239 INFO L146 ILogger]: Constructing interpolant automaton starting with 60 interpolants. [2019-05-23 09:22:47,239 INFO L146 ILogger]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2019-05-23 09:22:47,239 INFO L146 ILogger]: Start difference. First operand 121 states and 121 transitions. Second operand 60 states. [2019-05-23 09:22:47,424 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:47,424 INFO L146 ILogger]: Finished difference Result 124 states and 124 transitions. [2019-05-23 09:22:47,425 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-05-23 09:22:47,425 INFO L146 ILogger]: Start accepts. Automaton has 60 states. Word has length 120 [2019-05-23 09:22:47,425 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:47,426 INFO L146 ILogger]: With dead ends: 124 [2019-05-23 09:22:47,426 INFO L146 ILogger]: Without dead ends: 124 [2019-05-23 09:22:47,426 INFO L146 ILogger]: 0 DeclaredPredicates, 119 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2019-05-23 09:22:47,427 INFO L146 ILogger]: Start minimizeSevpa. Operand 124 states. [2019-05-23 09:22:47,427 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 124 to 123. [2019-05-23 09:22:47,428 INFO L146 ILogger]: Start removeUnreachable. Operand 123 states. [2019-05-23 09:22:47,428 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 123 states to 123 states and 123 transitions. [2019-05-23 09:22:47,428 INFO L146 ILogger]: Start accepts. Automaton has 123 states and 123 transitions. Word has length 120 [2019-05-23 09:22:47,428 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:47,428 INFO L146 ILogger]: Abstraction has 123 states and 123 transitions. [2019-05-23 09:22:47,428 INFO L146 ILogger]: Interpolant automaton has 60 states. [2019-05-23 09:22:47,429 INFO L146 ILogger]: Start isEmpty. Operand 123 states and 123 transitions. [2019-05-23 09:22:47,429 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 123 [2019-05-23 09:22:47,429 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:47,429 INFO L146 ILogger]: trace histogram [58, 58, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:47,430 INFO L146 ILogger]: === Iteration 59 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:47,430 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:47,430 INFO L146 ILogger]: Analyzing trace with hash 2141513616, now seen corresponding path program 58 times [2019-05-23 09:22:47,431 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:47,441 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:47,443 INFO L146 ILogger]: Trace formula consists of 185 conjuncts, 60 conjunts are in the unsatisfiable core [2019-05-23 09:22:47,445 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:48,766 INFO L146 ILogger]: Checked inductivity of 3364 backedges. 0 proven. 3364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:48,766 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:48,766 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [60] total 60 [2019-05-23 09:22:48,767 INFO L146 ILogger]: Interpolant automaton has 61 states [2019-05-23 09:22:48,773 INFO L146 ILogger]: Constructing interpolant automaton starting with 61 interpolants. [2019-05-23 09:22:48,773 INFO L146 ILogger]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 09:22:48,773 INFO L146 ILogger]: Start difference. First operand 123 states and 123 transitions. Second operand 61 states. [2019-05-23 09:22:48,929 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:48,930 INFO L146 ILogger]: Finished difference Result 126 states and 126 transitions. [2019-05-23 09:22:48,930 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-05-23 09:22:48,930 INFO L146 ILogger]: Start accepts. Automaton has 61 states. Word has length 122 [2019-05-23 09:22:48,930 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:48,931 INFO L146 ILogger]: With dead ends: 126 [2019-05-23 09:22:48,931 INFO L146 ILogger]: Without dead ends: 126 [2019-05-23 09:22:48,932 INFO L146 ILogger]: 0 DeclaredPredicates, 121 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2019-05-23 09:22:48,932 INFO L146 ILogger]: Start minimizeSevpa. Operand 126 states. [2019-05-23 09:22:48,934 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 126 to 125. [2019-05-23 09:22:48,934 INFO L146 ILogger]: Start removeUnreachable. Operand 125 states. [2019-05-23 09:22:48,934 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2019-05-23 09:22:48,935 INFO L146 ILogger]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 122 [2019-05-23 09:22:48,935 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:48,935 INFO L146 ILogger]: Abstraction has 125 states and 125 transitions. [2019-05-23 09:22:48,935 INFO L146 ILogger]: Interpolant automaton has 61 states. [2019-05-23 09:22:48,935 INFO L146 ILogger]: Start isEmpty. Operand 125 states and 125 transitions. [2019-05-23 09:22:48,935 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 125 [2019-05-23 09:22:48,935 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:48,935 INFO L146 ILogger]: trace histogram [59, 59, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:48,936 INFO L146 ILogger]: === Iteration 60 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:48,936 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:48,936 INFO L146 ILogger]: Analyzing trace with hash -2045056529, now seen corresponding path program 59 times [2019-05-23 09:22:48,936 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:48,945 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:48,947 INFO L146 ILogger]: Trace formula consists of 188 conjuncts, 61 conjunts are in the unsatisfiable core [2019-05-23 09:22:48,949 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:50,314 INFO L146 ILogger]: Checked inductivity of 3481 backedges. 0 proven. 3481 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:50,314 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:50,314 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [61] total 61 [2019-05-23 09:22:50,314 INFO L146 ILogger]: Interpolant automaton has 62 states [2019-05-23 09:22:50,315 INFO L146 ILogger]: Constructing interpolant automaton starting with 62 interpolants. [2019-05-23 09:22:50,315 INFO L146 ILogger]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2019-05-23 09:22:50,315 INFO L146 ILogger]: Start difference. First operand 125 states and 125 transitions. Second operand 62 states. [2019-05-23 09:22:50,471 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:50,471 INFO L146 ILogger]: Finished difference Result 128 states and 128 transitions. [2019-05-23 09:22:50,472 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2019-05-23 09:22:50,472 INFO L146 ILogger]: Start accepts. Automaton has 62 states. Word has length 124 [2019-05-23 09:22:50,472 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:50,473 INFO L146 ILogger]: With dead ends: 128 [2019-05-23 09:22:50,473 INFO L146 ILogger]: Without dead ends: 128 [2019-05-23 09:22:50,473 INFO L146 ILogger]: 0 DeclaredPredicates, 123 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2019-05-23 09:22:50,473 INFO L146 ILogger]: Start minimizeSevpa. Operand 128 states. [2019-05-23 09:22:50,474 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 128 to 127. [2019-05-23 09:22:50,474 INFO L146 ILogger]: Start removeUnreachable. Operand 127 states. [2019-05-23 09:22:50,475 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2019-05-23 09:22:50,475 INFO L146 ILogger]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 124 [2019-05-23 09:22:50,475 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:50,475 INFO L146 ILogger]: Abstraction has 127 states and 127 transitions. [2019-05-23 09:22:50,475 INFO L146 ILogger]: Interpolant automaton has 62 states. [2019-05-23 09:22:50,475 INFO L146 ILogger]: Start isEmpty. Operand 127 states and 127 transitions. [2019-05-23 09:22:50,476 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 127 [2019-05-23 09:22:50,476 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:50,476 INFO L146 ILogger]: trace histogram [60, 60, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:50,476 INFO L146 ILogger]: === Iteration 61 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:50,476 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:50,476 INFO L146 ILogger]: Analyzing trace with hash -954609522, now seen corresponding path program 60 times [2019-05-23 09:22:50,477 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:50,486 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:50,488 INFO L146 ILogger]: Trace formula consists of 191 conjuncts, 62 conjunts are in the unsatisfiable core [2019-05-23 09:22:50,490 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:52,192 INFO L146 ILogger]: Checked inductivity of 3600 backedges. 0 proven. 3600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:52,193 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:52,193 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [62] total 62 [2019-05-23 09:22:52,193 INFO L146 ILogger]: Interpolant automaton has 63 states [2019-05-23 09:22:52,194 INFO L146 ILogger]: Constructing interpolant automaton starting with 63 interpolants. [2019-05-23 09:22:52,194 INFO L146 ILogger]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 09:22:52,194 INFO L146 ILogger]: Start difference. First operand 127 states and 127 transitions. Second operand 63 states. [2019-05-23 09:22:52,360 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:52,360 INFO L146 ILogger]: Finished difference Result 130 states and 130 transitions. [2019-05-23 09:22:52,360 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2019-05-23 09:22:52,360 INFO L146 ILogger]: Start accepts. Automaton has 63 states. Word has length 126 [2019-05-23 09:22:52,361 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:52,361 INFO L146 ILogger]: With dead ends: 130 [2019-05-23 09:22:52,362 INFO L146 ILogger]: Without dead ends: 130 [2019-05-23 09:22:52,362 INFO L146 ILogger]: 0 DeclaredPredicates, 125 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2019-05-23 09:22:52,363 INFO L146 ILogger]: Start minimizeSevpa. Operand 130 states. [2019-05-23 09:22:52,365 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 130 to 129. [2019-05-23 09:22:52,365 INFO L146 ILogger]: Start removeUnreachable. Operand 129 states. [2019-05-23 09:22:52,365 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2019-05-23 09:22:52,365 INFO L146 ILogger]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 126 [2019-05-23 09:22:52,366 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:52,366 INFO L146 ILogger]: Abstraction has 129 states and 129 transitions. [2019-05-23 09:22:52,366 INFO L146 ILogger]: Interpolant automaton has 63 states. [2019-05-23 09:22:52,366 INFO L146 ILogger]: Start isEmpty. Operand 129 states and 129 transitions. [2019-05-23 09:22:52,366 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 129 [2019-05-23 09:22:52,367 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:52,367 INFO L146 ILogger]: trace histogram [61, 61, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:52,367 INFO L146 ILogger]: === Iteration 62 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:52,367 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:52,367 INFO L146 ILogger]: Analyzing trace with hash -1007056019, now seen corresponding path program 61 times [2019-05-23 09:22:52,368 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:52,378 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:52,380 INFO L146 ILogger]: Trace formula consists of 194 conjuncts, 63 conjunts are in the unsatisfiable core [2019-05-23 09:22:52,382 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:53,888 INFO L146 ILogger]: Checked inductivity of 3721 backedges. 0 proven. 3721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:53,888 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:53,888 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [63] total 63 [2019-05-23 09:22:53,889 INFO L146 ILogger]: Interpolant automaton has 64 states [2019-05-23 09:22:53,889 INFO L146 ILogger]: Constructing interpolant automaton starting with 64 interpolants. [2019-05-23 09:22:53,889 INFO L146 ILogger]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 09:22:53,890 INFO L146 ILogger]: Start difference. First operand 129 states and 129 transitions. Second operand 64 states. [2019-05-23 09:22:54,058 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:54,058 INFO L146 ILogger]: Finished difference Result 132 states and 132 transitions. [2019-05-23 09:22:54,058 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2019-05-23 09:22:54,059 INFO L146 ILogger]: Start accepts. Automaton has 64 states. Word has length 128 [2019-05-23 09:22:54,059 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:54,059 INFO L146 ILogger]: With dead ends: 132 [2019-05-23 09:22:54,060 INFO L146 ILogger]: Without dead ends: 132 [2019-05-23 09:22:54,060 INFO L146 ILogger]: 0 DeclaredPredicates, 127 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2019-05-23 09:22:54,060 INFO L146 ILogger]: Start minimizeSevpa. Operand 132 states. [2019-05-23 09:22:54,061 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 132 to 131. [2019-05-23 09:22:54,062 INFO L146 ILogger]: Start removeUnreachable. Operand 131 states. [2019-05-23 09:22:54,062 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2019-05-23 09:22:54,062 INFO L146 ILogger]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 128 [2019-05-23 09:22:54,062 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:54,063 INFO L146 ILogger]: Abstraction has 131 states and 131 transitions. [2019-05-23 09:22:54,063 INFO L146 ILogger]: Interpolant automaton has 64 states. [2019-05-23 09:22:54,063 INFO L146 ILogger]: Start isEmpty. Operand 131 states and 131 transitions. [2019-05-23 09:22:54,063 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 131 [2019-05-23 09:22:54,063 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:54,064 INFO L146 ILogger]: trace histogram [62, 62, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:54,064 INFO L146 ILogger]: === Iteration 63 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:54,064 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:54,064 INFO L146 ILogger]: Analyzing trace with hash 131467916, now seen corresponding path program 62 times [2019-05-23 09:22:54,065 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:54,075 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:54,076 INFO L146 ILogger]: Trace formula consists of 197 conjuncts, 64 conjunts are in the unsatisfiable core [2019-05-23 09:22:54,078 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:55,490 INFO L146 ILogger]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:55,490 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:55,490 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2019-05-23 09:22:55,491 INFO L146 ILogger]: Interpolant automaton has 65 states [2019-05-23 09:22:55,491 INFO L146 ILogger]: Constructing interpolant automaton starting with 65 interpolants. [2019-05-23 09:22:55,492 INFO L146 ILogger]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 09:22:55,492 INFO L146 ILogger]: Start difference. First operand 131 states and 131 transitions. Second operand 65 states. [2019-05-23 09:22:55,661 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:55,661 INFO L146 ILogger]: Finished difference Result 134 states and 134 transitions. [2019-05-23 09:22:55,661 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-05-23 09:22:55,662 INFO L146 ILogger]: Start accepts. Automaton has 65 states. Word has length 130 [2019-05-23 09:22:55,662 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:55,663 INFO L146 ILogger]: With dead ends: 134 [2019-05-23 09:22:55,663 INFO L146 ILogger]: Without dead ends: 134 [2019-05-23 09:22:55,663 INFO L146 ILogger]: 0 DeclaredPredicates, 129 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2019-05-23 09:22:55,664 INFO L146 ILogger]: Start minimizeSevpa. Operand 134 states. [2019-05-23 09:22:55,665 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 134 to 133. [2019-05-23 09:22:55,665 INFO L146 ILogger]: Start removeUnreachable. Operand 133 states. [2019-05-23 09:22:55,666 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 133 states to 133 states and 133 transitions. [2019-05-23 09:22:55,666 INFO L146 ILogger]: Start accepts. Automaton has 133 states and 133 transitions. Word has length 130 [2019-05-23 09:22:55,666 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:55,666 INFO L146 ILogger]: Abstraction has 133 states and 133 transitions. [2019-05-23 09:22:55,666 INFO L146 ILogger]: Interpolant automaton has 65 states. [2019-05-23 09:22:55,666 INFO L146 ILogger]: Start isEmpty. Operand 133 states and 133 transitions. [2019-05-23 09:22:55,668 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 133 [2019-05-23 09:22:55,668 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:55,668 INFO L146 ILogger]: trace histogram [63, 63, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:55,669 INFO L146 ILogger]: === Iteration 64 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:55,669 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:55,669 INFO L146 ILogger]: Analyzing trace with hash -963691029, now seen corresponding path program 63 times [2019-05-23 09:22:55,670 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:55,680 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:55,682 INFO L146 ILogger]: Trace formula consists of 200 conjuncts, 65 conjunts are in the unsatisfiable core [2019-05-23 09:22:55,684 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:22:57,455 INFO L146 ILogger]: Checked inductivity of 3969 backedges. 0 proven. 3969 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:22:57,455 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:22:57,455 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2019-05-23 09:22:57,456 INFO L146 ILogger]: Interpolant automaton has 66 states [2019-05-23 09:22:57,457 INFO L146 ILogger]: Constructing interpolant automaton starting with 66 interpolants. [2019-05-23 09:22:57,458 INFO L146 ILogger]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2019-05-23 09:22:57,458 INFO L146 ILogger]: Start difference. First operand 133 states and 133 transitions. Second operand 66 states. [2019-05-23 09:22:59,358 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:22:59,358 INFO L146 ILogger]: Finished difference Result 136 states and 136 transitions. [2019-05-23 09:22:59,358 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-05-23 09:22:59,359 INFO L146 ILogger]: Start accepts. Automaton has 66 states. Word has length 132 [2019-05-23 09:22:59,359 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:22:59,360 INFO L146 ILogger]: With dead ends: 136 [2019-05-23 09:22:59,360 INFO L146 ILogger]: Without dead ends: 136 [2019-05-23 09:22:59,361 INFO L146 ILogger]: 0 DeclaredPredicates, 131 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2019-05-23 09:22:59,362 INFO L146 ILogger]: Start minimizeSevpa. Operand 136 states. [2019-05-23 09:22:59,364 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 136 to 135. [2019-05-23 09:22:59,364 INFO L146 ILogger]: Start removeUnreachable. Operand 135 states. [2019-05-23 09:22:59,364 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2019-05-23 09:22:59,365 INFO L146 ILogger]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 132 [2019-05-23 09:22:59,365 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:22:59,365 INFO L146 ILogger]: Abstraction has 135 states and 135 transitions. [2019-05-23 09:22:59,365 INFO L146 ILogger]: Interpolant automaton has 66 states. [2019-05-23 09:22:59,365 INFO L146 ILogger]: Start isEmpty. Operand 135 states and 135 transitions. [2019-05-23 09:22:59,367 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 135 [2019-05-23 09:22:59,367 INFO L146 ILogger]: Found error trace [2019-05-23 09:22:59,368 INFO L146 ILogger]: trace histogram [64, 64, 1, 1, 1, 1, 1, 1] [2019-05-23 09:22:59,368 INFO L146 ILogger]: === Iteration 65 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:22:59,368 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:22:59,369 INFO L146 ILogger]: Analyzing trace with hash -1144449654, now seen corresponding path program 64 times [2019-05-23 09:22:59,369 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:22:59,390 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:22:59,392 INFO L146 ILogger]: Trace formula consists of 203 conjuncts, 66 conjunts are in the unsatisfiable core [2019-05-23 09:22:59,396 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:01,513 INFO L146 ILogger]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:01,514 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:01,514 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2019-05-23 09:23:01,514 INFO L146 ILogger]: Interpolant automaton has 67 states [2019-05-23 09:23:01,514 INFO L146 ILogger]: Constructing interpolant automaton starting with 67 interpolants. [2019-05-23 09:23:01,515 INFO L146 ILogger]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2019-05-23 09:23:01,515 INFO L146 ILogger]: Start difference. First operand 135 states and 135 transitions. Second operand 67 states. [2019-05-23 09:23:01,695 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:01,696 INFO L146 ILogger]: Finished difference Result 138 states and 138 transitions. [2019-05-23 09:23:01,696 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2019-05-23 09:23:01,696 INFO L146 ILogger]: Start accepts. Automaton has 67 states. Word has length 134 [2019-05-23 09:23:01,696 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:01,697 INFO L146 ILogger]: With dead ends: 138 [2019-05-23 09:23:01,697 INFO L146 ILogger]: Without dead ends: 138 [2019-05-23 09:23:01,698 INFO L146 ILogger]: 0 DeclaredPredicates, 133 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2019-05-23 09:23:01,698 INFO L146 ILogger]: Start minimizeSevpa. Operand 138 states. [2019-05-23 09:23:01,700 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 138 to 137. [2019-05-23 09:23:01,700 INFO L146 ILogger]: Start removeUnreachable. Operand 137 states. [2019-05-23 09:23:01,701 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2019-05-23 09:23:01,701 INFO L146 ILogger]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 134 [2019-05-23 09:23:01,701 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:01,701 INFO L146 ILogger]: Abstraction has 137 states and 137 transitions. [2019-05-23 09:23:01,701 INFO L146 ILogger]: Interpolant automaton has 67 states. [2019-05-23 09:23:01,701 INFO L146 ILogger]: Start isEmpty. Operand 137 states and 137 transitions. [2019-05-23 09:23:01,702 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 137 [2019-05-23 09:23:01,702 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:01,702 INFO L146 ILogger]: trace histogram [65, 65, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:01,702 INFO L146 ILogger]: === Iteration 66 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:01,703 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:01,703 INFO L146 ILogger]: Analyzing trace with hash 1240170857, now seen corresponding path program 65 times [2019-05-23 09:23:01,703 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:01,713 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:01,715 INFO L146 ILogger]: Trace formula consists of 206 conjuncts, 67 conjunts are in the unsatisfiable core [2019-05-23 09:23:01,717 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:03,495 INFO L146 ILogger]: Checked inductivity of 4225 backedges. 0 proven. 4225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:03,495 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:03,495 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [67] total 67 [2019-05-23 09:23:03,496 INFO L146 ILogger]: Interpolant automaton has 68 states [2019-05-23 09:23:03,496 INFO L146 ILogger]: Constructing interpolant automaton starting with 68 interpolants. [2019-05-23 09:23:03,496 INFO L146 ILogger]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2019-05-23 09:23:03,496 INFO L146 ILogger]: Start difference. First operand 137 states and 137 transitions. Second operand 68 states. [2019-05-23 09:23:03,668 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:03,668 INFO L146 ILogger]: Finished difference Result 140 states and 140 transitions. [2019-05-23 09:23:03,669 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2019-05-23 09:23:03,669 INFO L146 ILogger]: Start accepts. Automaton has 68 states. Word has length 136 [2019-05-23 09:23:03,669 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:03,670 INFO L146 ILogger]: With dead ends: 140 [2019-05-23 09:23:03,670 INFO L146 ILogger]: Without dead ends: 140 [2019-05-23 09:23:03,671 INFO L146 ILogger]: 0 DeclaredPredicates, 135 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2019-05-23 09:23:03,671 INFO L146 ILogger]: Start minimizeSevpa. Operand 140 states. [2019-05-23 09:23:03,672 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 140 to 139. [2019-05-23 09:23:03,673 INFO L146 ILogger]: Start removeUnreachable. Operand 139 states. [2019-05-23 09:23:03,673 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2019-05-23 09:23:03,673 INFO L146 ILogger]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 136 [2019-05-23 09:23:03,673 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:03,673 INFO L146 ILogger]: Abstraction has 139 states and 139 transitions. [2019-05-23 09:23:03,674 INFO L146 ILogger]: Interpolant automaton has 68 states. [2019-05-23 09:23:03,674 INFO L146 ILogger]: Start isEmpty. Operand 139 states and 139 transitions. [2019-05-23 09:23:03,674 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 139 [2019-05-23 09:23:03,674 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:03,674 INFO L146 ILogger]: trace histogram [66, 66, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:03,674 INFO L146 ILogger]: === Iteration 67 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:03,675 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:03,675 INFO L146 ILogger]: Analyzing trace with hash -652054136, now seen corresponding path program 66 times [2019-05-23 09:23:03,675 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:03,683 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:03,685 INFO L146 ILogger]: Trace formula consists of 209 conjuncts, 68 conjunts are in the unsatisfiable core [2019-05-23 09:23:03,686 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:05,252 INFO L146 ILogger]: Checked inductivity of 4356 backedges. 0 proven. 4356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:05,253 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:05,253 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2019-05-23 09:23:05,253 INFO L146 ILogger]: Interpolant automaton has 69 states [2019-05-23 09:23:05,254 INFO L146 ILogger]: Constructing interpolant automaton starting with 69 interpolants. [2019-05-23 09:23:05,254 INFO L146 ILogger]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2019-05-23 09:23:05,254 INFO L146 ILogger]: Start difference. First operand 139 states and 139 transitions. Second operand 69 states. [2019-05-23 09:23:05,532 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:05,532 INFO L146 ILogger]: Finished difference Result 142 states and 142 transitions. [2019-05-23 09:23:05,533 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2019-05-23 09:23:05,533 INFO L146 ILogger]: Start accepts. Automaton has 69 states. Word has length 138 [2019-05-23 09:23:05,533 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:05,534 INFO L146 ILogger]: With dead ends: 142 [2019-05-23 09:23:05,534 INFO L146 ILogger]: Without dead ends: 142 [2019-05-23 09:23:05,535 INFO L146 ILogger]: 0 DeclaredPredicates, 137 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2019-05-23 09:23:05,535 INFO L146 ILogger]: Start minimizeSevpa. Operand 142 states. [2019-05-23 09:23:05,536 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 142 to 141. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Start removeUnreachable. Operand 141 states. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 138 [2019-05-23 09:23:05,537 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Abstraction has 141 states and 141 transitions. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Interpolant automaton has 69 states. [2019-05-23 09:23:05,537 INFO L146 ILogger]: Start isEmpty. Operand 141 states and 141 transitions. [2019-05-23 09:23:05,538 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 141 [2019-05-23 09:23:05,538 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:05,538 INFO L146 ILogger]: trace histogram [67, 67, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:05,538 INFO L146 ILogger]: === Iteration 68 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:05,538 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:05,538 INFO L146 ILogger]: Analyzing trace with hash 1985861095, now seen corresponding path program 67 times [2019-05-23 09:23:05,539 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:05,547 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:05,549 INFO L146 ILogger]: Trace formula consists of 212 conjuncts, 69 conjunts are in the unsatisfiable core [2019-05-23 09:23:05,552 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:07,404 INFO L146 ILogger]: Checked inductivity of 4489 backedges. 0 proven. 4489 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:07,405 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:07,405 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [69] total 69 [2019-05-23 09:23:07,405 INFO L146 ILogger]: Interpolant automaton has 70 states [2019-05-23 09:23:07,406 INFO L146 ILogger]: Constructing interpolant automaton starting with 70 interpolants. [2019-05-23 09:23:07,406 INFO L146 ILogger]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2019-05-23 09:23:07,406 INFO L146 ILogger]: Start difference. First operand 141 states and 141 transitions. Second operand 70 states. [2019-05-23 09:23:08,482 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:08,482 INFO L146 ILogger]: Finished difference Result 144 states and 144 transitions. [2019-05-23 09:23:08,482 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2019-05-23 09:23:08,482 INFO L146 ILogger]: Start accepts. Automaton has 70 states. Word has length 140 [2019-05-23 09:23:08,482 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:08,483 INFO L146 ILogger]: With dead ends: 144 [2019-05-23 09:23:08,483 INFO L146 ILogger]: Without dead ends: 144 [2019-05-23 09:23:08,484 INFO L146 ILogger]: 0 DeclaredPredicates, 139 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2019-05-23 09:23:08,484 INFO L146 ILogger]: Start minimizeSevpa. Operand 144 states. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 144 to 143. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Start removeUnreachable. Operand 143 states. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 143 states to 143 states and 143 transitions. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Start accepts. Automaton has 143 states and 143 transitions. Word has length 140 [2019-05-23 09:23:08,486 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Abstraction has 143 states and 143 transitions. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Interpolant automaton has 70 states. [2019-05-23 09:23:08,486 INFO L146 ILogger]: Start isEmpty. Operand 143 states and 143 transitions. [2019-05-23 09:23:08,487 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 143 [2019-05-23 09:23:08,487 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:08,487 INFO L146 ILogger]: trace histogram [68, 68, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:08,487 INFO L146 ILogger]: === Iteration 69 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:08,487 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:08,487 INFO L146 ILogger]: Analyzing trace with hash -1303273850, now seen corresponding path program 68 times [2019-05-23 09:23:08,488 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:08,498 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:08,500 INFO L146 ILogger]: Trace formula consists of 215 conjuncts, 70 conjunts are in the unsatisfiable core [2019-05-23 09:23:08,502 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:10,207 INFO L146 ILogger]: Checked inductivity of 4624 backedges. 0 proven. 4624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:10,207 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:10,207 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [70] total 70 [2019-05-23 09:23:10,208 INFO L146 ILogger]: Interpolant automaton has 71 states [2019-05-23 09:23:10,208 INFO L146 ILogger]: Constructing interpolant automaton starting with 71 interpolants. [2019-05-23 09:23:10,209 INFO L146 ILogger]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2019-05-23 09:23:10,209 INFO L146 ILogger]: Start difference. First operand 143 states and 143 transitions. Second operand 71 states. [2019-05-23 09:23:10,470 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:10,470 INFO L146 ILogger]: Finished difference Result 146 states and 146 transitions. [2019-05-23 09:23:10,470 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2019-05-23 09:23:10,470 INFO L146 ILogger]: Start accepts. Automaton has 71 states. Word has length 142 [2019-05-23 09:23:10,471 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:10,472 INFO L146 ILogger]: With dead ends: 146 [2019-05-23 09:23:10,472 INFO L146 ILogger]: Without dead ends: 146 [2019-05-23 09:23:10,473 INFO L146 ILogger]: 0 DeclaredPredicates, 141 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2019-05-23 09:23:10,473 INFO L146 ILogger]: Start minimizeSevpa. Operand 146 states. [2019-05-23 09:23:10,474 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 146 to 145. [2019-05-23 09:23:10,474 INFO L146 ILogger]: Start removeUnreachable. Operand 145 states. [2019-05-23 09:23:10,474 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2019-05-23 09:23:10,474 INFO L146 ILogger]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 142 [2019-05-23 09:23:10,475 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:10,475 INFO L146 ILogger]: Abstraction has 145 states and 145 transitions. [2019-05-23 09:23:10,475 INFO L146 ILogger]: Interpolant automaton has 71 states. [2019-05-23 09:23:10,475 INFO L146 ILogger]: Start isEmpty. Operand 145 states and 145 transitions. [2019-05-23 09:23:10,475 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 145 [2019-05-23 09:23:10,475 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:10,475 INFO L146 ILogger]: trace histogram [69, 69, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:10,476 INFO L146 ILogger]: === Iteration 70 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:10,476 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:10,476 INFO L146 ILogger]: Analyzing trace with hash -1066026139, now seen corresponding path program 69 times [2019-05-23 09:23:10,476 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:10,487 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:10,489 INFO L146 ILogger]: Trace formula consists of 218 conjuncts, 71 conjunts are in the unsatisfiable core [2019-05-23 09:23:10,491 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:13,214 INFO L146 ILogger]: Checked inductivity of 4761 backedges. 0 proven. 4761 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:13,214 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:13,214 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [71] total 71 [2019-05-23 09:23:13,214 INFO L146 ILogger]: Interpolant automaton has 72 states [2019-05-23 09:23:13,215 INFO L146 ILogger]: Constructing interpolant automaton starting with 72 interpolants. [2019-05-23 09:23:13,215 INFO L146 ILogger]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2019-05-23 09:23:13,215 INFO L146 ILogger]: Start difference. First operand 145 states and 145 transitions. Second operand 72 states. [2019-05-23 09:23:13,409 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:13,410 INFO L146 ILogger]: Finished difference Result 148 states and 148 transitions. [2019-05-23 09:23:13,410 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2019-05-23 09:23:13,410 INFO L146 ILogger]: Start accepts. Automaton has 72 states. Word has length 144 [2019-05-23 09:23:13,410 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:13,411 INFO L146 ILogger]: With dead ends: 148 [2019-05-23 09:23:13,411 INFO L146 ILogger]: Without dead ends: 148 [2019-05-23 09:23:13,412 INFO L146 ILogger]: 0 DeclaredPredicates, 143 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2019-05-23 09:23:13,412 INFO L146 ILogger]: Start minimizeSevpa. Operand 148 states. [2019-05-23 09:23:13,416 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 148 to 147. [2019-05-23 09:23:13,416 INFO L146 ILogger]: Start removeUnreachable. Operand 147 states. [2019-05-23 09:23:13,417 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2019-05-23 09:23:13,417 INFO L146 ILogger]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 144 [2019-05-23 09:23:13,417 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:13,417 INFO L146 ILogger]: Abstraction has 147 states and 147 transitions. [2019-05-23 09:23:13,417 INFO L146 ILogger]: Interpolant automaton has 72 states. [2019-05-23 09:23:13,417 INFO L146 ILogger]: Start isEmpty. Operand 147 states and 147 transitions. [2019-05-23 09:23:13,418 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 147 [2019-05-23 09:23:13,418 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:13,418 INFO L146 ILogger]: trace histogram [70, 70, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:13,419 INFO L146 ILogger]: === Iteration 71 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:13,419 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:13,419 INFO L146 ILogger]: Analyzing trace with hash -704242556, now seen corresponding path program 70 times [2019-05-23 09:23:13,419 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:13,430 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:13,432 INFO L146 ILogger]: Trace formula consists of 221 conjuncts, 72 conjunts are in the unsatisfiable core [2019-05-23 09:23:13,433 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:15,268 INFO L146 ILogger]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:15,268 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:15,268 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [72] total 72 [2019-05-23 09:23:15,268 INFO L146 ILogger]: Interpolant automaton has 73 states [2019-05-23 09:23:15,269 INFO L146 ILogger]: Constructing interpolant automaton starting with 73 interpolants. [2019-05-23 09:23:15,269 INFO L146 ILogger]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2019-05-23 09:23:15,270 INFO L146 ILogger]: Start difference. First operand 147 states and 147 transitions. Second operand 73 states. [2019-05-23 09:23:15,483 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:15,484 INFO L146 ILogger]: Finished difference Result 150 states and 150 transitions. [2019-05-23 09:23:15,484 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2019-05-23 09:23:15,484 INFO L146 ILogger]: Start accepts. Automaton has 73 states. Word has length 146 [2019-05-23 09:23:15,485 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:15,485 INFO L146 ILogger]: With dead ends: 150 [2019-05-23 09:23:15,485 INFO L146 ILogger]: Without dead ends: 150 [2019-05-23 09:23:15,486 INFO L146 ILogger]: 0 DeclaredPredicates, 145 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2019-05-23 09:23:15,486 INFO L146 ILogger]: Start minimizeSevpa. Operand 150 states. [2019-05-23 09:23:15,487 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 150 to 149. [2019-05-23 09:23:15,487 INFO L146 ILogger]: Start removeUnreachable. Operand 149 states. [2019-05-23 09:23:15,488 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2019-05-23 09:23:15,488 INFO L146 ILogger]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 146 [2019-05-23 09:23:15,488 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:15,488 INFO L146 ILogger]: Abstraction has 149 states and 149 transitions. [2019-05-23 09:23:15,488 INFO L146 ILogger]: Interpolant automaton has 73 states. [2019-05-23 09:23:15,488 INFO L146 ILogger]: Start isEmpty. Operand 149 states and 149 transitions. [2019-05-23 09:23:15,489 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 149 [2019-05-23 09:23:15,489 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:15,489 INFO L146 ILogger]: trace histogram [71, 71, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:15,489 INFO L146 ILogger]: === Iteration 72 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:15,490 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:15,490 INFO L146 ILogger]: Analyzing trace with hash -922570269, now seen corresponding path program 71 times [2019-05-23 09:23:15,490 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:15,500 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:15,502 INFO L146 ILogger]: Trace formula consists of 224 conjuncts, 73 conjunts are in the unsatisfiable core [2019-05-23 09:23:15,504 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:18,860 INFO L146 ILogger]: Checked inductivity of 5041 backedges. 0 proven. 5041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:18,860 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:18,861 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [73] total 73 [2019-05-23 09:23:18,861 INFO L146 ILogger]: Interpolant automaton has 74 states [2019-05-23 09:23:18,862 INFO L146 ILogger]: Constructing interpolant automaton starting with 74 interpolants. [2019-05-23 09:23:18,862 INFO L146 ILogger]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2019-05-23 09:23:18,862 INFO L146 ILogger]: Start difference. First operand 149 states and 149 transitions. Second operand 74 states. [2019-05-23 09:23:19,089 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:19,090 INFO L146 ILogger]: Finished difference Result 152 states and 152 transitions. [2019-05-23 09:23:19,090 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2019-05-23 09:23:19,090 INFO L146 ILogger]: Start accepts. Automaton has 74 states. Word has length 148 [2019-05-23 09:23:19,091 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:19,091 INFO L146 ILogger]: With dead ends: 152 [2019-05-23 09:23:19,092 INFO L146 ILogger]: Without dead ends: 152 [2019-05-23 09:23:19,092 INFO L146 ILogger]: 0 DeclaredPredicates, 147 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2019-05-23 09:23:19,093 INFO L146 ILogger]: Start minimizeSevpa. Operand 152 states. [2019-05-23 09:23:19,095 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 152 to 151. [2019-05-23 09:23:19,095 INFO L146 ILogger]: Start removeUnreachable. Operand 151 states. [2019-05-23 09:23:19,095 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2019-05-23 09:23:19,095 INFO L146 ILogger]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 148 [2019-05-23 09:23:19,096 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:19,096 INFO L146 ILogger]: Abstraction has 151 states and 151 transitions. [2019-05-23 09:23:19,096 INFO L146 ILogger]: Interpolant automaton has 74 states. [2019-05-23 09:23:19,096 INFO L146 ILogger]: Start isEmpty. Operand 151 states and 151 transitions. [2019-05-23 09:23:19,096 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 151 [2019-05-23 09:23:19,097 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:19,097 INFO L146 ILogger]: trace histogram [72, 72, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:19,097 INFO L146 ILogger]: === Iteration 73 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:19,097 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:19,097 INFO L146 ILogger]: Analyzing trace with hash -282104958, now seen corresponding path program 72 times [2019-05-23 09:23:19,098 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:19,108 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:19,110 INFO L146 ILogger]: Trace formula consists of 227 conjuncts, 74 conjunts are in the unsatisfiable core [2019-05-23 09:23:19,112 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:21,040 INFO L146 ILogger]: Checked inductivity of 5184 backedges. 0 proven. 5184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:21,041 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:21,041 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [74] total 74 [2019-05-23 09:23:21,041 INFO L146 ILogger]: Interpolant automaton has 75 states [2019-05-23 09:23:21,041 INFO L146 ILogger]: Constructing interpolant automaton starting with 75 interpolants. [2019-05-23 09:23:21,042 INFO L146 ILogger]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2019-05-23 09:23:21,042 INFO L146 ILogger]: Start difference. First operand 151 states and 151 transitions. Second operand 75 states. [2019-05-23 09:23:21,249 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:21,249 INFO L146 ILogger]: Finished difference Result 154 states and 154 transitions. [2019-05-23 09:23:21,249 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2019-05-23 09:23:21,250 INFO L146 ILogger]: Start accepts. Automaton has 75 states. Word has length 150 [2019-05-23 09:23:21,250 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:21,251 INFO L146 ILogger]: With dead ends: 154 [2019-05-23 09:23:21,251 INFO L146 ILogger]: Without dead ends: 154 [2019-05-23 09:23:21,252 INFO L146 ILogger]: 0 DeclaredPredicates, 149 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2019-05-23 09:23:21,252 INFO L146 ILogger]: Start minimizeSevpa. Operand 154 states. [2019-05-23 09:23:21,254 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 154 to 153. [2019-05-23 09:23:21,254 INFO L146 ILogger]: Start removeUnreachable. Operand 153 states. [2019-05-23 09:23:21,254 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 153 states to 153 states and 153 transitions. [2019-05-23 09:23:21,254 INFO L146 ILogger]: Start accepts. Automaton has 153 states and 153 transitions. Word has length 150 [2019-05-23 09:23:21,255 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:21,255 INFO L146 ILogger]: Abstraction has 153 states and 153 transitions. [2019-05-23 09:23:21,255 INFO L146 ILogger]: Interpolant automaton has 75 states. [2019-05-23 09:23:21,255 INFO L146 ILogger]: Start isEmpty. Operand 153 states and 153 transitions. [2019-05-23 09:23:21,255 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 153 [2019-05-23 09:23:21,256 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:21,256 INFO L146 ILogger]: trace histogram [73, 73, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:21,256 INFO L146 ILogger]: === Iteration 74 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:21,256 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:21,256 INFO L146 ILogger]: Analyzing trace with hash 1024735585, now seen corresponding path program 73 times [2019-05-23 09:23:21,257 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:21,267 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:21,269 INFO L146 ILogger]: Trace formula consists of 230 conjuncts, 75 conjunts are in the unsatisfiable core [2019-05-23 09:23:21,271 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:23,380 INFO L146 ILogger]: Checked inductivity of 5329 backedges. 0 proven. 5329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:23,381 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:23,381 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [75] total 75 [2019-05-23 09:23:23,381 INFO L146 ILogger]: Interpolant automaton has 76 states [2019-05-23 09:23:23,381 INFO L146 ILogger]: Constructing interpolant automaton starting with 76 interpolants. [2019-05-23 09:23:23,382 INFO L146 ILogger]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2019-05-23 09:23:23,382 INFO L146 ILogger]: Start difference. First operand 153 states and 153 transitions. Second operand 76 states. [2019-05-23 09:23:23,580 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:23,581 INFO L146 ILogger]: Finished difference Result 156 states and 156 transitions. [2019-05-23 09:23:23,581 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2019-05-23 09:23:23,581 INFO L146 ILogger]: Start accepts. Automaton has 76 states. Word has length 152 [2019-05-23 09:23:23,582 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:23,582 INFO L146 ILogger]: With dead ends: 156 [2019-05-23 09:23:23,583 INFO L146 ILogger]: Without dead ends: 156 [2019-05-23 09:23:23,583 INFO L146 ILogger]: 0 DeclaredPredicates, 151 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2019-05-23 09:23:23,583 INFO L146 ILogger]: Start minimizeSevpa. Operand 156 states. [2019-05-23 09:23:23,585 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 156 to 155. [2019-05-23 09:23:23,585 INFO L146 ILogger]: Start removeUnreachable. Operand 155 states. [2019-05-23 09:23:23,586 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2019-05-23 09:23:23,586 INFO L146 ILogger]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 152 [2019-05-23 09:23:23,586 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:23,586 INFO L146 ILogger]: Abstraction has 155 states and 155 transitions. [2019-05-23 09:23:23,586 INFO L146 ILogger]: Interpolant automaton has 76 states. [2019-05-23 09:23:23,586 INFO L146 ILogger]: Start isEmpty. Operand 155 states and 155 transitions. [2019-05-23 09:23:23,587 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 155 [2019-05-23 09:23:23,587 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:23,587 INFO L146 ILogger]: trace histogram [74, 74, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:23,588 INFO L146 ILogger]: === Iteration 75 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:23,588 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:23,588 INFO L146 ILogger]: Analyzing trace with hash -1526920320, now seen corresponding path program 74 times [2019-05-23 09:23:23,588 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:23,599 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:23,601 INFO L146 ILogger]: Trace formula consists of 233 conjuncts, 76 conjunts are in the unsatisfiable core [2019-05-23 09:23:23,603 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:25,689 INFO L146 ILogger]: Checked inductivity of 5476 backedges. 0 proven. 5476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:25,690 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:25,690 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [76] total 76 [2019-05-23 09:23:25,690 INFO L146 ILogger]: Interpolant automaton has 77 states [2019-05-23 09:23:25,690 INFO L146 ILogger]: Constructing interpolant automaton starting with 77 interpolants. [2019-05-23 09:23:25,691 INFO L146 ILogger]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2019-05-23 09:23:25,691 INFO L146 ILogger]: Start difference. First operand 155 states and 155 transitions. Second operand 77 states. [2019-05-23 09:23:25,956 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:25,956 INFO L146 ILogger]: Finished difference Result 158 states and 158 transitions. [2019-05-23 09:23:25,956 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2019-05-23 09:23:25,957 INFO L146 ILogger]: Start accepts. Automaton has 77 states. Word has length 154 [2019-05-23 09:23:25,957 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:25,958 INFO L146 ILogger]: With dead ends: 158 [2019-05-23 09:23:25,958 INFO L146 ILogger]: Without dead ends: 158 [2019-05-23 09:23:25,958 INFO L146 ILogger]: 0 DeclaredPredicates, 153 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2019-05-23 09:23:25,958 INFO L146 ILogger]: Start minimizeSevpa. Operand 158 states. [2019-05-23 09:23:25,959 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 158 to 157. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Start removeUnreachable. Operand 157 states. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 154 [2019-05-23 09:23:25,960 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Abstraction has 157 states and 157 transitions. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Interpolant automaton has 77 states. [2019-05-23 09:23:25,960 INFO L146 ILogger]: Start isEmpty. Operand 157 states and 157 transitions. [2019-05-23 09:23:25,961 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 157 [2019-05-23 09:23:25,961 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:25,961 INFO L146 ILogger]: trace histogram [75, 75, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:25,961 INFO L146 ILogger]: === Iteration 76 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:25,961 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:25,962 INFO L146 ILogger]: Analyzing trace with hash -1241919009, now seen corresponding path program 75 times [2019-05-23 09:23:25,962 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:25,974 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:25,976 INFO L146 ILogger]: Trace formula consists of 236 conjuncts, 77 conjunts are in the unsatisfiable core [2019-05-23 09:23:25,978 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:28,513 INFO L146 ILogger]: Checked inductivity of 5625 backedges. 0 proven. 5625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:28,514 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:28,514 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [77] total 77 [2019-05-23 09:23:28,514 INFO L146 ILogger]: Interpolant automaton has 78 states [2019-05-23 09:23:28,514 INFO L146 ILogger]: Constructing interpolant automaton starting with 78 interpolants. [2019-05-23 09:23:28,515 INFO L146 ILogger]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2019-05-23 09:23:28,515 INFO L146 ILogger]: Start difference. First operand 157 states and 157 transitions. Second operand 78 states. [2019-05-23 09:23:28,720 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:28,720 INFO L146 ILogger]: Finished difference Result 160 states and 160 transitions. [2019-05-23 09:23:28,721 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2019-05-23 09:23:28,721 INFO L146 ILogger]: Start accepts. Automaton has 78 states. Word has length 156 [2019-05-23 09:23:28,721 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:28,722 INFO L146 ILogger]: With dead ends: 160 [2019-05-23 09:23:28,722 INFO L146 ILogger]: Without dead ends: 160 [2019-05-23 09:23:28,723 INFO L146 ILogger]: 0 DeclaredPredicates, 155 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2019-05-23 09:23:28,723 INFO L146 ILogger]: Start minimizeSevpa. Operand 160 states. [2019-05-23 09:23:28,725 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 160 to 159. [2019-05-23 09:23:28,726 INFO L146 ILogger]: Start removeUnreachable. Operand 159 states. [2019-05-23 09:23:28,726 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2019-05-23 09:23:28,726 INFO L146 ILogger]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 156 [2019-05-23 09:23:28,726 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:28,726 INFO L146 ILogger]: Abstraction has 159 states and 159 transitions. [2019-05-23 09:23:28,726 INFO L146 ILogger]: Interpolant automaton has 78 states. [2019-05-23 09:23:28,727 INFO L146 ILogger]: Start isEmpty. Operand 159 states and 159 transitions. [2019-05-23 09:23:28,727 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 159 [2019-05-23 09:23:28,727 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:28,727 INFO L146 ILogger]: trace histogram [76, 76, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:28,728 INFO L146 ILogger]: === Iteration 77 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:28,728 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:28,728 INFO L146 ILogger]: Analyzing trace with hash 2061401214, now seen corresponding path program 76 times [2019-05-23 09:23:28,729 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:28,740 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:28,742 INFO L146 ILogger]: Trace formula consists of 239 conjuncts, 78 conjunts are in the unsatisfiable core [2019-05-23 09:23:28,745 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:30,915 INFO L146 ILogger]: Checked inductivity of 5776 backedges. 0 proven. 5776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:30,915 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:30,915 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [78] total 78 [2019-05-23 09:23:30,915 INFO L146 ILogger]: Interpolant automaton has 79 states [2019-05-23 09:23:30,916 INFO L146 ILogger]: Constructing interpolant automaton starting with 79 interpolants. [2019-05-23 09:23:30,916 INFO L146 ILogger]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2019-05-23 09:23:30,916 INFO L146 ILogger]: Start difference. First operand 159 states and 159 transitions. Second operand 79 states. [2019-05-23 09:23:31,122 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:31,122 INFO L146 ILogger]: Finished difference Result 162 states and 162 transitions. [2019-05-23 09:23:31,123 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2019-05-23 09:23:31,123 INFO L146 ILogger]: Start accepts. Automaton has 79 states. Word has length 158 [2019-05-23 09:23:31,123 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:31,124 INFO L146 ILogger]: With dead ends: 162 [2019-05-23 09:23:31,124 INFO L146 ILogger]: Without dead ends: 162 [2019-05-23 09:23:31,125 INFO L146 ILogger]: 0 DeclaredPredicates, 157 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2019-05-23 09:23:31,125 INFO L146 ILogger]: Start minimizeSevpa. Operand 162 states. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 162 to 161. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Start removeUnreachable. Operand 161 states. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 158 [2019-05-23 09:23:31,127 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Abstraction has 161 states and 161 transitions. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Interpolant automaton has 79 states. [2019-05-23 09:23:31,127 INFO L146 ILogger]: Start isEmpty. Operand 161 states and 161 transitions. [2019-05-23 09:23:31,128 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 161 [2019-05-23 09:23:31,128 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:31,128 INFO L146 ILogger]: trace histogram [77, 77, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:31,129 INFO L146 ILogger]: === Iteration 78 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:31,129 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:31,129 INFO L146 ILogger]: Analyzing trace with hash -1723663523, now seen corresponding path program 77 times [2019-05-23 09:23:31,129 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:31,140 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:31,142 INFO L146 ILogger]: Trace formula consists of 242 conjuncts, 79 conjunts are in the unsatisfiable core [2019-05-23 09:23:31,144 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:33,649 INFO L146 ILogger]: Checked inductivity of 5929 backedges. 0 proven. 5929 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:33,649 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:33,649 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [79] total 79 [2019-05-23 09:23:33,650 INFO L146 ILogger]: Interpolant automaton has 80 states [2019-05-23 09:23:33,650 INFO L146 ILogger]: Constructing interpolant automaton starting with 80 interpolants. [2019-05-23 09:23:33,650 INFO L146 ILogger]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2019-05-23 09:23:33,650 INFO L146 ILogger]: Start difference. First operand 161 states and 161 transitions. Second operand 80 states. [2019-05-23 09:23:33,862 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:33,862 INFO L146 ILogger]: Finished difference Result 164 states and 164 transitions. [2019-05-23 09:23:33,863 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2019-05-23 09:23:33,863 INFO L146 ILogger]: Start accepts. Automaton has 80 states. Word has length 160 [2019-05-23 09:23:33,863 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:33,864 INFO L146 ILogger]: With dead ends: 164 [2019-05-23 09:23:33,864 INFO L146 ILogger]: Without dead ends: 164 [2019-05-23 09:23:33,864 INFO L146 ILogger]: 0 DeclaredPredicates, 159 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2019-05-23 09:23:33,864 INFO L146 ILogger]: Start minimizeSevpa. Operand 164 states. [2019-05-23 09:23:33,866 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 164 to 163. [2019-05-23 09:23:33,866 INFO L146 ILogger]: Start removeUnreachable. Operand 163 states. [2019-05-23 09:23:33,866 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 163 states to 163 states and 163 transitions. [2019-05-23 09:23:33,866 INFO L146 ILogger]: Start accepts. Automaton has 163 states and 163 transitions. Word has length 160 [2019-05-23 09:23:33,866 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:33,867 INFO L146 ILogger]: Abstraction has 163 states and 163 transitions. [2019-05-23 09:23:33,867 INFO L146 ILogger]: Interpolant automaton has 80 states. [2019-05-23 09:23:33,867 INFO L146 ILogger]: Start isEmpty. Operand 163 states and 163 transitions. [2019-05-23 09:23:33,867 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 163 [2019-05-23 09:23:33,868 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:33,868 INFO L146 ILogger]: trace histogram [78, 78, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:33,868 INFO L146 ILogger]: === Iteration 79 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:33,868 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:33,868 INFO L146 ILogger]: Analyzing trace with hash -1333576068, now seen corresponding path program 78 times [2019-05-23 09:23:33,869 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:33,880 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:33,882 INFO L146 ILogger]: Trace formula consists of 245 conjuncts, 80 conjunts are in the unsatisfiable core [2019-05-23 09:23:33,883 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:36,069 INFO L146 ILogger]: Checked inductivity of 6084 backedges. 0 proven. 6084 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:36,070 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:36,070 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [80] total 80 [2019-05-23 09:23:36,070 INFO L146 ILogger]: Interpolant automaton has 81 states [2019-05-23 09:23:36,071 INFO L146 ILogger]: Constructing interpolant automaton starting with 81 interpolants. [2019-05-23 09:23:36,071 INFO L146 ILogger]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2019-05-23 09:23:36,071 INFO L146 ILogger]: Start difference. First operand 163 states and 163 transitions. Second operand 81 states. [2019-05-23 09:23:36,290 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:36,290 INFO L146 ILogger]: Finished difference Result 166 states and 166 transitions. [2019-05-23 09:23:36,291 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2019-05-23 09:23:36,291 INFO L146 ILogger]: Start accepts. Automaton has 81 states. Word has length 162 [2019-05-23 09:23:36,291 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:36,292 INFO L146 ILogger]: With dead ends: 166 [2019-05-23 09:23:36,292 INFO L146 ILogger]: Without dead ends: 166 [2019-05-23 09:23:36,293 INFO L146 ILogger]: 0 DeclaredPredicates, 161 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2019-05-23 09:23:36,293 INFO L146 ILogger]: Start minimizeSevpa. Operand 166 states. [2019-05-23 09:23:36,295 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 166 to 165. [2019-05-23 09:23:36,295 INFO L146 ILogger]: Start removeUnreachable. Operand 165 states. [2019-05-23 09:23:36,295 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2019-05-23 09:23:36,295 INFO L146 ILogger]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 162 [2019-05-23 09:23:36,295 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:36,296 INFO L146 ILogger]: Abstraction has 165 states and 165 transitions. [2019-05-23 09:23:36,296 INFO L146 ILogger]: Interpolant automaton has 81 states. [2019-05-23 09:23:36,296 INFO L146 ILogger]: Start isEmpty. Operand 165 states and 165 transitions. [2019-05-23 09:23:36,296 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 165 [2019-05-23 09:23:36,297 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:36,297 INFO L146 ILogger]: trace histogram [79, 79, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:36,297 INFO L146 ILogger]: === Iteration 80 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:36,297 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:36,297 INFO L146 ILogger]: Analyzing trace with hash -121686565, now seen corresponding path program 79 times [2019-05-23 09:23:36,298 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:36,308 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:36,310 INFO L146 ILogger]: Trace formula consists of 248 conjuncts, 81 conjunts are in the unsatisfiable core [2019-05-23 09:23:36,312 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:38,852 INFO L146 ILogger]: Checked inductivity of 6241 backedges. 0 proven. 6241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:38,852 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:38,852 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [81] total 81 [2019-05-23 09:23:38,852 INFO L146 ILogger]: Interpolant automaton has 82 states [2019-05-23 09:23:38,853 INFO L146 ILogger]: Constructing interpolant automaton starting with 82 interpolants. [2019-05-23 09:23:38,853 INFO L146 ILogger]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2019-05-23 09:23:38,853 INFO L146 ILogger]: Start difference. First operand 165 states and 165 transitions. Second operand 82 states. [2019-05-23 09:23:39,066 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:39,066 INFO L146 ILogger]: Finished difference Result 168 states and 168 transitions. [2019-05-23 09:23:39,066 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2019-05-23 09:23:39,066 INFO L146 ILogger]: Start accepts. Automaton has 82 states. Word has length 164 [2019-05-23 09:23:39,067 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:39,068 INFO L146 ILogger]: With dead ends: 168 [2019-05-23 09:23:39,068 INFO L146 ILogger]: Without dead ends: 168 [2019-05-23 09:23:39,068 INFO L146 ILogger]: 0 DeclaredPredicates, 163 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2019-05-23 09:23:39,069 INFO L146 ILogger]: Start minimizeSevpa. Operand 168 states. [2019-05-23 09:23:39,070 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 168 to 167. [2019-05-23 09:23:39,070 INFO L146 ILogger]: Start removeUnreachable. Operand 167 states. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 164 [2019-05-23 09:23:39,071 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Abstraction has 167 states and 167 transitions. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Interpolant automaton has 82 states. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Start isEmpty. Operand 167 states and 167 transitions. [2019-05-23 09:23:39,071 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 167 [2019-05-23 09:23:39,072 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:39,072 INFO L146 ILogger]: trace histogram [80, 80, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:39,072 INFO L146 ILogger]: === Iteration 81 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:39,072 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:39,072 INFO L146 ILogger]: Analyzing trace with hash 567988602, now seen corresponding path program 80 times [2019-05-23 09:23:39,073 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:39,080 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:39,081 INFO L146 ILogger]: Trace formula consists of 251 conjuncts, 82 conjunts are in the unsatisfiable core [2019-05-23 09:23:39,083 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:41,332 INFO L146 ILogger]: Checked inductivity of 6400 backedges. 0 proven. 6400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:41,333 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:41,333 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [82] total 82 [2019-05-23 09:23:41,333 INFO L146 ILogger]: Interpolant automaton has 83 states [2019-05-23 09:23:41,334 INFO L146 ILogger]: Constructing interpolant automaton starting with 83 interpolants. [2019-05-23 09:23:41,334 INFO L146 ILogger]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2019-05-23 09:23:41,334 INFO L146 ILogger]: Start difference. First operand 167 states and 167 transitions. Second operand 83 states. [2019-05-23 09:23:41,555 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:41,556 INFO L146 ILogger]: Finished difference Result 170 states and 170 transitions. [2019-05-23 09:23:41,556 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2019-05-23 09:23:41,556 INFO L146 ILogger]: Start accepts. Automaton has 83 states. Word has length 166 [2019-05-23 09:23:41,556 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:41,557 INFO L146 ILogger]: With dead ends: 170 [2019-05-23 09:23:41,557 INFO L146 ILogger]: Without dead ends: 170 [2019-05-23 09:23:41,558 INFO L146 ILogger]: 0 DeclaredPredicates, 165 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2019-05-23 09:23:41,558 INFO L146 ILogger]: Start minimizeSevpa. Operand 170 states. [2019-05-23 09:23:41,560 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 170 to 169. [2019-05-23 09:23:41,560 INFO L146 ILogger]: Start removeUnreachable. Operand 169 states. [2019-05-23 09:23:41,560 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2019-05-23 09:23:41,561 INFO L146 ILogger]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 166 [2019-05-23 09:23:41,561 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:41,561 INFO L146 ILogger]: Abstraction has 169 states and 169 transitions. [2019-05-23 09:23:41,561 INFO L146 ILogger]: Interpolant automaton has 83 states. [2019-05-23 09:23:41,561 INFO L146 ILogger]: Start isEmpty. Operand 169 states and 169 transitions. [2019-05-23 09:23:41,561 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 169 [2019-05-23 09:23:41,561 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:41,562 INFO L146 ILogger]: trace histogram [81, 81, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:41,562 INFO L146 ILogger]: === Iteration 82 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:41,562 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:41,562 INFO L146 ILogger]: Analyzing trace with hash 1920860505, now seen corresponding path program 81 times [2019-05-23 09:23:41,562 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:41,572 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:41,574 INFO L146 ILogger]: Trace formula consists of 254 conjuncts, 83 conjunts are in the unsatisfiable core [2019-05-23 09:23:41,576 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:44,153 INFO L146 ILogger]: Checked inductivity of 6561 backedges. 0 proven. 6561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:44,153 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:44,154 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [83] total 83 [2019-05-23 09:23:44,154 INFO L146 ILogger]: Interpolant automaton has 84 states [2019-05-23 09:23:44,154 INFO L146 ILogger]: Constructing interpolant automaton starting with 84 interpolants. [2019-05-23 09:23:44,154 INFO L146 ILogger]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2019-05-23 09:23:44,155 INFO L146 ILogger]: Start difference. First operand 169 states and 169 transitions. Second operand 84 states. [2019-05-23 09:23:44,374 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:44,374 INFO L146 ILogger]: Finished difference Result 172 states and 172 transitions. [2019-05-23 09:23:44,374 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2019-05-23 09:23:44,375 INFO L146 ILogger]: Start accepts. Automaton has 84 states. Word has length 168 [2019-05-23 09:23:44,375 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:44,376 INFO L146 ILogger]: With dead ends: 172 [2019-05-23 09:23:44,376 INFO L146 ILogger]: Without dead ends: 172 [2019-05-23 09:23:44,376 INFO L146 ILogger]: 0 DeclaredPredicates, 167 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2019-05-23 09:23:44,376 INFO L146 ILogger]: Start minimizeSevpa. Operand 172 states. [2019-05-23 09:23:44,377 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 172 to 171. [2019-05-23 09:23:44,377 INFO L146 ILogger]: Start removeUnreachable. Operand 171 states. [2019-05-23 09:23:44,379 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2019-05-23 09:23:44,379 INFO L146 ILogger]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 168 [2019-05-23 09:23:44,379 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:44,379 INFO L146 ILogger]: Abstraction has 171 states and 171 transitions. [2019-05-23 09:23:44,379 INFO L146 ILogger]: Interpolant automaton has 84 states. [2019-05-23 09:23:44,379 INFO L146 ILogger]: Start isEmpty. Operand 171 states and 171 transitions. [2019-05-23 09:23:44,380 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 171 [2019-05-23 09:23:44,380 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:44,380 INFO L146 ILogger]: trace histogram [82, 82, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:44,381 INFO L146 ILogger]: === Iteration 83 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:44,381 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:44,381 INFO L146 ILogger]: Analyzing trace with hash 655668600, now seen corresponding path program 82 times [2019-05-23 09:23:44,381 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:44,391 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:44,393 INFO L146 ILogger]: Trace formula consists of 257 conjuncts, 84 conjunts are in the unsatisfiable core [2019-05-23 09:23:44,394 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:46,883 INFO L146 ILogger]: Checked inductivity of 6724 backedges. 0 proven. 6724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:46,884 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:46,884 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [84] total 84 [2019-05-23 09:23:46,884 INFO L146 ILogger]: Interpolant automaton has 85 states [2019-05-23 09:23:46,885 INFO L146 ILogger]: Constructing interpolant automaton starting with 85 interpolants. [2019-05-23 09:23:46,885 INFO L146 ILogger]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2019-05-23 09:23:46,885 INFO L146 ILogger]: Start difference. First operand 171 states and 171 transitions. Second operand 85 states. [2019-05-23 09:23:47,123 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:47,123 INFO L146 ILogger]: Finished difference Result 174 states and 174 transitions. [2019-05-23 09:23:47,123 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2019-05-23 09:23:47,123 INFO L146 ILogger]: Start accepts. Automaton has 85 states. Word has length 170 [2019-05-23 09:23:47,124 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:47,124 INFO L146 ILogger]: With dead ends: 174 [2019-05-23 09:23:47,124 INFO L146 ILogger]: Without dead ends: 174 [2019-05-23 09:23:47,125 INFO L146 ILogger]: 0 DeclaredPredicates, 169 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2019-05-23 09:23:47,125 INFO L146 ILogger]: Start minimizeSevpa. Operand 174 states. [2019-05-23 09:23:47,126 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 174 to 173. [2019-05-23 09:23:47,126 INFO L146 ILogger]: Start removeUnreachable. Operand 173 states. [2019-05-23 09:23:47,126 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2019-05-23 09:23:47,126 INFO L146 ILogger]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 170 [2019-05-23 09:23:47,127 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:47,127 INFO L146 ILogger]: Abstraction has 173 states and 173 transitions. [2019-05-23 09:23:47,127 INFO L146 ILogger]: Interpolant automaton has 85 states. [2019-05-23 09:23:47,127 INFO L146 ILogger]: Start isEmpty. Operand 173 states and 173 transitions. [2019-05-23 09:23:47,127 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 173 [2019-05-23 09:23:47,127 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:47,128 INFO L146 ILogger]: trace histogram [83, 83, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:47,128 INFO L146 ILogger]: === Iteration 84 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:47,128 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:47,128 INFO L146 ILogger]: Analyzing trace with hash 281992663, now seen corresponding path program 83 times [2019-05-23 09:23:47,128 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:47,139 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:47,141 INFO L146 ILogger]: Trace formula consists of 260 conjuncts, 85 conjunts are in the unsatisfiable core [2019-05-23 09:23:47,143 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:49,965 INFO L146 ILogger]: Checked inductivity of 6889 backedges. 0 proven. 6889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:49,966 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:49,966 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [85] total 85 [2019-05-23 09:23:49,966 INFO L146 ILogger]: Interpolant automaton has 86 states [2019-05-23 09:23:49,967 INFO L146 ILogger]: Constructing interpolant automaton starting with 86 interpolants. [2019-05-23 09:23:49,967 INFO L146 ILogger]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2019-05-23 09:23:49,967 INFO L146 ILogger]: Start difference. First operand 173 states and 173 transitions. Second operand 86 states. [2019-05-23 09:23:50,200 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:50,201 INFO L146 ILogger]: Finished difference Result 176 states and 176 transitions. [2019-05-23 09:23:50,201 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2019-05-23 09:23:50,201 INFO L146 ILogger]: Start accepts. Automaton has 86 states. Word has length 172 [2019-05-23 09:23:50,202 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:50,202 INFO L146 ILogger]: With dead ends: 176 [2019-05-23 09:23:50,203 INFO L146 ILogger]: Without dead ends: 176 [2019-05-23 09:23:50,203 INFO L146 ILogger]: 0 DeclaredPredicates, 171 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2019-05-23 09:23:50,203 INFO L146 ILogger]: Start minimizeSevpa. Operand 176 states. [2019-05-23 09:23:50,205 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 176 to 175. [2019-05-23 09:23:50,205 INFO L146 ILogger]: Start removeUnreachable. Operand 175 states. [2019-05-23 09:23:50,205 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2019-05-23 09:23:50,205 INFO L146 ILogger]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 172 [2019-05-23 09:23:50,206 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:50,206 INFO L146 ILogger]: Abstraction has 175 states and 175 transitions. [2019-05-23 09:23:50,206 INFO L146 ILogger]: Interpolant automaton has 86 states. [2019-05-23 09:23:50,206 INFO L146 ILogger]: Start isEmpty. Operand 175 states and 175 transitions. [2019-05-23 09:23:50,207 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 175 [2019-05-23 09:23:50,207 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:50,207 INFO L146 ILogger]: trace histogram [84, 84, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:50,207 INFO L146 ILogger]: === Iteration 85 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:50,207 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:50,207 INFO L146 ILogger]: Analyzing trace with hash 1956670070, now seen corresponding path program 84 times [2019-05-23 09:23:50,208 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:50,220 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:50,222 INFO L146 ILogger]: Trace formula consists of 263 conjuncts, 86 conjunts are in the unsatisfiable core [2019-05-23 09:23:50,224 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:52,764 INFO L146 ILogger]: Checked inductivity of 7056 backedges. 0 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:52,764 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:52,764 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [86] total 86 [2019-05-23 09:23:52,765 INFO L146 ILogger]: Interpolant automaton has 87 states [2019-05-23 09:23:52,765 INFO L146 ILogger]: Constructing interpolant automaton starting with 87 interpolants. [2019-05-23 09:23:52,766 INFO L146 ILogger]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2019-05-23 09:23:52,766 INFO L146 ILogger]: Start difference. First operand 175 states and 175 transitions. Second operand 87 states. [2019-05-23 09:23:53,019 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:53,019 INFO L146 ILogger]: Finished difference Result 178 states and 178 transitions. [2019-05-23 09:23:53,020 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2019-05-23 09:23:53,020 INFO L146 ILogger]: Start accepts. Automaton has 87 states. Word has length 174 [2019-05-23 09:23:53,020 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:53,020 INFO L146 ILogger]: With dead ends: 178 [2019-05-23 09:23:53,021 INFO L146 ILogger]: Without dead ends: 178 [2019-05-23 09:23:53,021 INFO L146 ILogger]: 0 DeclaredPredicates, 173 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2019-05-23 09:23:53,021 INFO L146 ILogger]: Start minimizeSevpa. Operand 178 states. [2019-05-23 09:23:53,023 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 178 to 177. [2019-05-23 09:23:53,023 INFO L146 ILogger]: Start removeUnreachable. Operand 177 states. [2019-05-23 09:23:53,024 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2019-05-23 09:23:53,024 INFO L146 ILogger]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 174 [2019-05-23 09:23:53,024 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:53,024 INFO L146 ILogger]: Abstraction has 177 states and 177 transitions. [2019-05-23 09:23:53,024 INFO L146 ILogger]: Interpolant automaton has 87 states. [2019-05-23 09:23:53,024 INFO L146 ILogger]: Start isEmpty. Operand 177 states and 177 transitions. [2019-05-23 09:23:53,025 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 177 [2019-05-23 09:23:53,025 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:53,025 INFO L146 ILogger]: trace histogram [85, 85, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:53,026 INFO L146 ILogger]: === Iteration 86 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:53,026 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:53,026 INFO L146 ILogger]: Analyzing trace with hash 708922197, now seen corresponding path program 85 times [2019-05-23 09:23:53,027 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:53,039 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:53,041 INFO L146 ILogger]: Trace formula consists of 266 conjuncts, 87 conjunts are in the unsatisfiable core [2019-05-23 09:23:53,043 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:55,902 INFO L146 ILogger]: Checked inductivity of 7225 backedges. 0 proven. 7225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:55,902 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:55,902 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [87] total 87 [2019-05-23 09:23:55,903 INFO L146 ILogger]: Interpolant automaton has 88 states [2019-05-23 09:23:55,904 INFO L146 ILogger]: Constructing interpolant automaton starting with 88 interpolants. [2019-05-23 09:23:55,904 INFO L146 ILogger]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2019-05-23 09:23:55,904 INFO L146 ILogger]: Start difference. First operand 177 states and 177 transitions. Second operand 88 states. [2019-05-23 09:23:56,147 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:56,148 INFO L146 ILogger]: Finished difference Result 180 states and 180 transitions. [2019-05-23 09:23:56,148 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2019-05-23 09:23:56,148 INFO L146 ILogger]: Start accepts. Automaton has 88 states. Word has length 176 [2019-05-23 09:23:56,149 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:56,150 INFO L146 ILogger]: With dead ends: 180 [2019-05-23 09:23:56,150 INFO L146 ILogger]: Without dead ends: 180 [2019-05-23 09:23:56,150 INFO L146 ILogger]: 0 DeclaredPredicates, 175 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2019-05-23 09:23:56,151 INFO L146 ILogger]: Start minimizeSevpa. Operand 180 states. [2019-05-23 09:23:56,153 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 180 to 179. [2019-05-23 09:23:56,153 INFO L146 ILogger]: Start removeUnreachable. Operand 179 states. [2019-05-23 09:23:56,153 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2019-05-23 09:23:56,153 INFO L146 ILogger]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 176 [2019-05-23 09:23:56,153 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:56,153 INFO L146 ILogger]: Abstraction has 179 states and 179 transitions. [2019-05-23 09:23:56,154 INFO L146 ILogger]: Interpolant automaton has 88 states. [2019-05-23 09:23:56,154 INFO L146 ILogger]: Start isEmpty. Operand 179 states and 179 transitions. [2019-05-23 09:23:56,154 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 179 [2019-05-23 09:23:56,155 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:56,155 INFO L146 ILogger]: trace histogram [86, 86, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:56,155 INFO L146 ILogger]: === Iteration 87 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:56,155 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:56,155 INFO L146 ILogger]: Analyzing trace with hash -80908172, now seen corresponding path program 86 times [2019-05-23 09:23:56,156 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:56,168 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:56,170 INFO L146 ILogger]: Trace formula consists of 269 conjuncts, 88 conjunts are in the unsatisfiable core [2019-05-23 09:23:56,172 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:23:58,997 INFO L146 ILogger]: Checked inductivity of 7396 backedges. 0 proven. 7396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:23:58,998 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:23:58,998 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [88] total 88 [2019-05-23 09:23:58,998 INFO L146 ILogger]: Interpolant automaton has 89 states [2019-05-23 09:23:58,999 INFO L146 ILogger]: Constructing interpolant automaton starting with 89 interpolants. [2019-05-23 09:23:58,999 INFO L146 ILogger]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2019-05-23 09:23:58,999 INFO L146 ILogger]: Start difference. First operand 179 states and 179 transitions. Second operand 89 states. [2019-05-23 09:23:59,247 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:23:59,247 INFO L146 ILogger]: Finished difference Result 182 states and 182 transitions. [2019-05-23 09:23:59,247 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2019-05-23 09:23:59,248 INFO L146 ILogger]: Start accepts. Automaton has 89 states. Word has length 178 [2019-05-23 09:23:59,248 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:23:59,249 INFO L146 ILogger]: With dead ends: 182 [2019-05-23 09:23:59,249 INFO L146 ILogger]: Without dead ends: 182 [2019-05-23 09:23:59,250 INFO L146 ILogger]: 0 DeclaredPredicates, 177 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2019-05-23 09:23:59,250 INFO L146 ILogger]: Start minimizeSevpa. Operand 182 states. [2019-05-23 09:23:59,251 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 182 to 181. [2019-05-23 09:23:59,251 INFO L146 ILogger]: Start removeUnreachable. Operand 181 states. [2019-05-23 09:23:59,252 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2019-05-23 09:23:59,252 INFO L146 ILogger]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 178 [2019-05-23 09:23:59,252 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:23:59,252 INFO L146 ILogger]: Abstraction has 181 states and 181 transitions. [2019-05-23 09:23:59,252 INFO L146 ILogger]: Interpolant automaton has 89 states. [2019-05-23 09:23:59,252 INFO L146 ILogger]: Start isEmpty. Operand 181 states and 181 transitions. [2019-05-23 09:23:59,253 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 181 [2019-05-23 09:23:59,253 INFO L146 ILogger]: Found error trace [2019-05-23 09:23:59,253 INFO L146 ILogger]: trace histogram [87, 87, 1, 1, 1, 1, 1, 1] [2019-05-23 09:23:59,253 INFO L146 ILogger]: === Iteration 88 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:23:59,253 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:23:59,253 INFO L146 ILogger]: Analyzing trace with hash 1101318611, now seen corresponding path program 87 times [2019-05-23 09:23:59,254 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:23:59,263 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:23:59,265 INFO L146 ILogger]: Trace formula consists of 272 conjuncts, 89 conjunts are in the unsatisfiable core [2019-05-23 09:23:59,267 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:01,985 INFO L146 ILogger]: Checked inductivity of 7569 backedges. 0 proven. 7569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:01,985 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:01,986 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [89] total 89 [2019-05-23 09:24:01,986 INFO L146 ILogger]: Interpolant automaton has 90 states [2019-05-23 09:24:01,986 INFO L146 ILogger]: Constructing interpolant automaton starting with 90 interpolants. [2019-05-23 09:24:01,987 INFO L146 ILogger]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2019-05-23 09:24:01,987 INFO L146 ILogger]: Start difference. First operand 181 states and 181 transitions. Second operand 90 states. [2019-05-23 09:24:02,232 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:02,232 INFO L146 ILogger]: Finished difference Result 184 states and 184 transitions. [2019-05-23 09:24:02,232 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2019-05-23 09:24:02,232 INFO L146 ILogger]: Start accepts. Automaton has 90 states. Word has length 180 [2019-05-23 09:24:02,233 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:02,234 INFO L146 ILogger]: With dead ends: 184 [2019-05-23 09:24:02,234 INFO L146 ILogger]: Without dead ends: 184 [2019-05-23 09:24:02,234 INFO L146 ILogger]: 0 DeclaredPredicates, 179 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2019-05-23 09:24:02,235 INFO L146 ILogger]: Start minimizeSevpa. Operand 184 states. [2019-05-23 09:24:02,236 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 184 to 183. [2019-05-23 09:24:02,236 INFO L146 ILogger]: Start removeUnreachable. Operand 183 states. [2019-05-23 09:24:02,237 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2019-05-23 09:24:02,237 INFO L146 ILogger]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 180 [2019-05-23 09:24:02,237 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:02,237 INFO L146 ILogger]: Abstraction has 183 states and 183 transitions. [2019-05-23 09:24:02,237 INFO L146 ILogger]: Interpolant automaton has 90 states. [2019-05-23 09:24:02,237 INFO L146 ILogger]: Start isEmpty. Operand 183 states and 183 transitions. [2019-05-23 09:24:02,238 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 183 [2019-05-23 09:24:02,238 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:02,238 INFO L146 ILogger]: trace histogram [88, 88, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:02,238 INFO L146 ILogger]: === Iteration 89 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:02,238 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:02,238 INFO L146 ILogger]: Analyzing trace with hash -945076366, now seen corresponding path program 88 times [2019-05-23 09:24:02,239 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:02,247 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:02,248 INFO L146 ILogger]: Trace formula consists of 275 conjuncts, 90 conjunts are in the unsatisfiable core [2019-05-23 09:24:02,250 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:05,237 INFO L146 ILogger]: Checked inductivity of 7744 backedges. 0 proven. 7744 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:05,237 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:05,237 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [90] total 90 [2019-05-23 09:24:05,238 INFO L146 ILogger]: Interpolant automaton has 91 states [2019-05-23 09:24:05,238 INFO L146 ILogger]: Constructing interpolant automaton starting with 91 interpolants. [2019-05-23 09:24:05,238 INFO L146 ILogger]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2019-05-23 09:24:05,238 INFO L146 ILogger]: Start difference. First operand 183 states and 183 transitions. Second operand 91 states. [2019-05-23 09:24:05,486 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:05,486 INFO L146 ILogger]: Finished difference Result 186 states and 186 transitions. [2019-05-23 09:24:05,487 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2019-05-23 09:24:05,487 INFO L146 ILogger]: Start accepts. Automaton has 91 states. Word has length 182 [2019-05-23 09:24:05,487 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:05,488 INFO L146 ILogger]: With dead ends: 186 [2019-05-23 09:24:05,488 INFO L146 ILogger]: Without dead ends: 186 [2019-05-23 09:24:05,489 INFO L146 ILogger]: 0 DeclaredPredicates, 181 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2019-05-23 09:24:05,489 INFO L146 ILogger]: Start minimizeSevpa. Operand 186 states. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 186 to 185. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Start removeUnreachable. Operand 185 states. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 185 states to 185 states and 185 transitions. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Start accepts. Automaton has 185 states and 185 transitions. Word has length 182 [2019-05-23 09:24:05,491 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Abstraction has 185 states and 185 transitions. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Interpolant automaton has 91 states. [2019-05-23 09:24:05,491 INFO L146 ILogger]: Start isEmpty. Operand 185 states and 185 transitions. [2019-05-23 09:24:05,492 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 185 [2019-05-23 09:24:05,492 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:05,492 INFO L146 ILogger]: trace histogram [89, 89, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:05,492 INFO L146 ILogger]: === Iteration 90 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:05,492 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:05,493 INFO L146 ILogger]: Analyzing trace with hash -435627695, now seen corresponding path program 89 times [2019-05-23 09:24:05,493 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:05,505 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:05,508 INFO L146 ILogger]: Trace formula consists of 278 conjuncts, 91 conjunts are in the unsatisfiable core [2019-05-23 09:24:05,509 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:08,340 INFO L146 ILogger]: Checked inductivity of 7921 backedges. 0 proven. 7921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:08,341 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:08,341 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [91] total 91 [2019-05-23 09:24:08,341 INFO L146 ILogger]: Interpolant automaton has 92 states [2019-05-23 09:24:08,342 INFO L146 ILogger]: Constructing interpolant automaton starting with 92 interpolants. [2019-05-23 09:24:08,342 INFO L146 ILogger]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2019-05-23 09:24:08,342 INFO L146 ILogger]: Start difference. First operand 185 states and 185 transitions. Second operand 92 states. [2019-05-23 09:24:08,676 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:08,677 INFO L146 ILogger]: Finished difference Result 188 states and 188 transitions. [2019-05-23 09:24:08,677 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2019-05-23 09:24:08,677 INFO L146 ILogger]: Start accepts. Automaton has 92 states. Word has length 184 [2019-05-23 09:24:08,677 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:08,678 INFO L146 ILogger]: With dead ends: 188 [2019-05-23 09:24:08,678 INFO L146 ILogger]: Without dead ends: 188 [2019-05-23 09:24:08,678 INFO L146 ILogger]: 0 DeclaredPredicates, 183 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2019-05-23 09:24:08,679 INFO L146 ILogger]: Start minimizeSevpa. Operand 188 states. [2019-05-23 09:24:08,680 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 188 to 187. [2019-05-23 09:24:08,680 INFO L146 ILogger]: Start removeUnreachable. Operand 187 states. [2019-05-23 09:24:08,681 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2019-05-23 09:24:08,681 INFO L146 ILogger]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 184 [2019-05-23 09:24:08,681 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:08,681 INFO L146 ILogger]: Abstraction has 187 states and 187 transitions. [2019-05-23 09:24:08,681 INFO L146 ILogger]: Interpolant automaton has 92 states. [2019-05-23 09:24:08,681 INFO L146 ILogger]: Start isEmpty. Operand 187 states and 187 transitions. [2019-05-23 09:24:08,682 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 187 [2019-05-23 09:24:08,682 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:08,682 INFO L146 ILogger]: trace histogram [90, 90, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:08,683 INFO L146 ILogger]: === Iteration 91 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:08,683 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:08,683 INFO L146 ILogger]: Analyzing trace with hash -481726608, now seen corresponding path program 90 times [2019-05-23 09:24:08,683 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:08,695 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:08,697 INFO L146 ILogger]: Trace formula consists of 281 conjuncts, 92 conjunts are in the unsatisfiable core [2019-05-23 09:24:08,699 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:11,595 INFO L146 ILogger]: Checked inductivity of 8100 backedges. 0 proven. 8100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:11,595 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:11,596 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [92] total 92 [2019-05-23 09:24:11,596 INFO L146 ILogger]: Interpolant automaton has 93 states [2019-05-23 09:24:11,596 INFO L146 ILogger]: Constructing interpolant automaton starting with 93 interpolants. [2019-05-23 09:24:11,597 INFO L146 ILogger]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2019-05-23 09:24:11,597 INFO L146 ILogger]: Start difference. First operand 187 states and 187 transitions. Second operand 93 states. [2019-05-23 09:24:11,847 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:11,847 INFO L146 ILogger]: Finished difference Result 190 states and 190 transitions. [2019-05-23 09:24:11,848 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2019-05-23 09:24:11,848 INFO L146 ILogger]: Start accepts. Automaton has 93 states. Word has length 186 [2019-05-23 09:24:11,848 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:11,849 INFO L146 ILogger]: With dead ends: 190 [2019-05-23 09:24:11,849 INFO L146 ILogger]: Without dead ends: 190 [2019-05-23 09:24:11,850 INFO L146 ILogger]: 0 DeclaredPredicates, 185 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2019-05-23 09:24:11,850 INFO L146 ILogger]: Start minimizeSevpa. Operand 190 states. [2019-05-23 09:24:11,852 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 190 to 189. [2019-05-23 09:24:11,852 INFO L146 ILogger]: Start removeUnreachable. Operand 189 states. [2019-05-23 09:24:11,853 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 189 states to 189 states and 189 transitions. [2019-05-23 09:24:11,853 INFO L146 ILogger]: Start accepts. Automaton has 189 states and 189 transitions. Word has length 186 [2019-05-23 09:24:11,853 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:11,853 INFO L146 ILogger]: Abstraction has 189 states and 189 transitions. [2019-05-23 09:24:11,853 INFO L146 ILogger]: Interpolant automaton has 93 states. [2019-05-23 09:24:11,853 INFO L146 ILogger]: Start isEmpty. Operand 189 states and 189 transitions. [2019-05-23 09:24:11,854 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 189 [2019-05-23 09:24:11,854 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:11,854 INFO L146 ILogger]: trace histogram [91, 91, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:11,854 INFO L146 ILogger]: === Iteration 92 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:11,855 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:11,855 INFO L146 ILogger]: Analyzing trace with hash -1833109041, now seen corresponding path program 91 times [2019-05-23 09:24:11,855 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:11,866 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:11,868 INFO L146 ILogger]: Trace formula consists of 284 conjuncts, 93 conjunts are in the unsatisfiable core [2019-05-23 09:24:11,869 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:15,007 INFO L146 ILogger]: Checked inductivity of 8281 backedges. 0 proven. 8281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:15,007 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:15,007 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [93] total 93 [2019-05-23 09:24:15,008 INFO L146 ILogger]: Interpolant automaton has 94 states [2019-05-23 09:24:15,008 INFO L146 ILogger]: Constructing interpolant automaton starting with 94 interpolants. [2019-05-23 09:24:15,008 INFO L146 ILogger]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2019-05-23 09:24:15,008 INFO L146 ILogger]: Start difference. First operand 189 states and 189 transitions. Second operand 94 states. [2019-05-23 09:24:15,264 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:15,264 INFO L146 ILogger]: Finished difference Result 192 states and 192 transitions. [2019-05-23 09:24:15,265 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2019-05-23 09:24:15,265 INFO L146 ILogger]: Start accepts. Automaton has 94 states. Word has length 188 [2019-05-23 09:24:15,265 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:15,266 INFO L146 ILogger]: With dead ends: 192 [2019-05-23 09:24:15,266 INFO L146 ILogger]: Without dead ends: 192 [2019-05-23 09:24:15,267 INFO L146 ILogger]: 0 DeclaredPredicates, 187 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2019-05-23 09:24:15,267 INFO L146 ILogger]: Start minimizeSevpa. Operand 192 states. [2019-05-23 09:24:15,269 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 192 to 191. [2019-05-23 09:24:15,269 INFO L146 ILogger]: Start removeUnreachable. Operand 191 states. [2019-05-23 09:24:15,269 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2019-05-23 09:24:15,270 INFO L146 ILogger]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 188 [2019-05-23 09:24:15,270 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:15,270 INFO L146 ILogger]: Abstraction has 191 states and 191 transitions. [2019-05-23 09:24:15,270 INFO L146 ILogger]: Interpolant automaton has 94 states. [2019-05-23 09:24:15,270 INFO L146 ILogger]: Start isEmpty. Operand 191 states and 191 transitions. [2019-05-23 09:24:15,271 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 191 [2019-05-23 09:24:15,271 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:15,271 INFO L146 ILogger]: trace histogram [92, 92, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:15,271 INFO L146 ILogger]: === Iteration 93 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:15,272 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:15,272 INFO L146 ILogger]: Analyzing trace with hash 863463534, now seen corresponding path program 92 times [2019-05-23 09:24:15,272 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:15,284 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:15,286 INFO L146 ILogger]: Trace formula consists of 287 conjuncts, 94 conjunts are in the unsatisfiable core [2019-05-23 09:24:15,288 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:18,284 INFO L146 ILogger]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:18,284 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:18,284 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [94] total 94 [2019-05-23 09:24:18,284 INFO L146 ILogger]: Interpolant automaton has 95 states [2019-05-23 09:24:18,285 INFO L146 ILogger]: Constructing interpolant automaton starting with 95 interpolants. [2019-05-23 09:24:18,285 INFO L146 ILogger]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2019-05-23 09:24:18,285 INFO L146 ILogger]: Start difference. First operand 191 states and 191 transitions. Second operand 95 states. [2019-05-23 09:24:18,555 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:18,555 INFO L146 ILogger]: Finished difference Result 194 states and 194 transitions. [2019-05-23 09:24:18,555 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2019-05-23 09:24:18,555 INFO L146 ILogger]: Start accepts. Automaton has 95 states. Word has length 190 [2019-05-23 09:24:18,556 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:18,557 INFO L146 ILogger]: With dead ends: 194 [2019-05-23 09:24:18,557 INFO L146 ILogger]: Without dead ends: 194 [2019-05-23 09:24:18,558 INFO L146 ILogger]: 0 DeclaredPredicates, 189 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2019-05-23 09:24:18,558 INFO L146 ILogger]: Start minimizeSevpa. Operand 194 states. [2019-05-23 09:24:18,560 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 194 to 193. [2019-05-23 09:24:18,560 INFO L146 ILogger]: Start removeUnreachable. Operand 193 states. [2019-05-23 09:24:18,560 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 193 states to 193 states and 193 transitions. [2019-05-23 09:24:18,561 INFO L146 ILogger]: Start accepts. Automaton has 193 states and 193 transitions. Word has length 190 [2019-05-23 09:24:18,561 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:18,561 INFO L146 ILogger]: Abstraction has 193 states and 193 transitions. [2019-05-23 09:24:18,561 INFO L146 ILogger]: Interpolant automaton has 95 states. [2019-05-23 09:24:18,561 INFO L146 ILogger]: Start isEmpty. Operand 193 states and 193 transitions. [2019-05-23 09:24:18,561 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 193 [2019-05-23 09:24:18,562 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:18,562 INFO L146 ILogger]: trace histogram [93, 93, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:18,562 INFO L146 ILogger]: === Iteration 94 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:18,562 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:18,562 INFO L146 ILogger]: Analyzing trace with hash -1890538675, now seen corresponding path program 93 times [2019-05-23 09:24:18,563 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:18,573 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:18,575 INFO L146 ILogger]: Trace formula consists of 290 conjuncts, 95 conjunts are in the unsatisfiable core [2019-05-23 09:24:18,577 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:22,250 INFO L146 ILogger]: Checked inductivity of 8649 backedges. 0 proven. 8649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:22,250 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:22,250 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [95] total 95 [2019-05-23 09:24:22,251 INFO L146 ILogger]: Interpolant automaton has 96 states [2019-05-23 09:24:22,251 INFO L146 ILogger]: Constructing interpolant automaton starting with 96 interpolants. [2019-05-23 09:24:22,251 INFO L146 ILogger]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2019-05-23 09:24:22,252 INFO L146 ILogger]: Start difference. First operand 193 states and 193 transitions. Second operand 96 states. [2019-05-23 09:24:22,512 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:22,512 INFO L146 ILogger]: Finished difference Result 196 states and 196 transitions. [2019-05-23 09:24:22,512 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2019-05-23 09:24:22,512 INFO L146 ILogger]: Start accepts. Automaton has 96 states. Word has length 192 [2019-05-23 09:24:22,513 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:22,513 INFO L146 ILogger]: With dead ends: 196 [2019-05-23 09:24:22,513 INFO L146 ILogger]: Without dead ends: 196 [2019-05-23 09:24:22,514 INFO L146 ILogger]: 0 DeclaredPredicates, 191 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2019-05-23 09:24:22,514 INFO L146 ILogger]: Start minimizeSevpa. Operand 196 states. [2019-05-23 09:24:22,515 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 196 to 195. [2019-05-23 09:24:22,515 INFO L146 ILogger]: Start removeUnreachable. Operand 195 states. [2019-05-23 09:24:22,515 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2019-05-23 09:24:22,516 INFO L146 ILogger]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 192 [2019-05-23 09:24:22,516 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:22,516 INFO L146 ILogger]: Abstraction has 195 states and 195 transitions. [2019-05-23 09:24:22,516 INFO L146 ILogger]: Interpolant automaton has 96 states. [2019-05-23 09:24:22,516 INFO L146 ILogger]: Start isEmpty. Operand 195 states and 195 transitions. [2019-05-23 09:24:22,516 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 195 [2019-05-23 09:24:22,516 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:22,517 INFO L146 ILogger]: trace histogram [94, 94, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:22,517 INFO L146 ILogger]: === Iteration 95 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:22,517 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:22,517 INFO L146 ILogger]: Analyzing trace with hash 1508160108, now seen corresponding path program 94 times [2019-05-23 09:24:22,518 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:22,527 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:22,528 INFO L146 ILogger]: Trace formula consists of 293 conjuncts, 96 conjunts are in the unsatisfiable core [2019-05-23 09:24:22,530 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:25,892 INFO L146 ILogger]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:25,892 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:25,892 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [96] total 96 [2019-05-23 09:24:25,893 INFO L146 ILogger]: Interpolant automaton has 97 states [2019-05-23 09:24:25,893 INFO L146 ILogger]: Constructing interpolant automaton starting with 97 interpolants. [2019-05-23 09:24:25,893 INFO L146 ILogger]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2019-05-23 09:24:25,893 INFO L146 ILogger]: Start difference. First operand 195 states and 195 transitions. Second operand 97 states. [2019-05-23 09:24:26,167 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:26,168 INFO L146 ILogger]: Finished difference Result 198 states and 198 transitions. [2019-05-23 09:24:26,168 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2019-05-23 09:24:26,168 INFO L146 ILogger]: Start accepts. Automaton has 97 states. Word has length 194 [2019-05-23 09:24:26,168 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:26,169 INFO L146 ILogger]: With dead ends: 198 [2019-05-23 09:24:26,169 INFO L146 ILogger]: Without dead ends: 198 [2019-05-23 09:24:26,170 INFO L146 ILogger]: 0 DeclaredPredicates, 193 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2019-05-23 09:24:26,170 INFO L146 ILogger]: Start minimizeSevpa. Operand 198 states. [2019-05-23 09:24:26,171 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 198 to 197. [2019-05-23 09:24:26,171 INFO L146 ILogger]: Start removeUnreachable. Operand 197 states. [2019-05-23 09:24:26,172 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2019-05-23 09:24:26,172 INFO L146 ILogger]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 194 [2019-05-23 09:24:26,172 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:26,172 INFO L146 ILogger]: Abstraction has 197 states and 197 transitions. [2019-05-23 09:24:26,173 INFO L146 ILogger]: Interpolant automaton has 97 states. [2019-05-23 09:24:26,173 INFO L146 ILogger]: Start isEmpty. Operand 197 states and 197 transitions. [2019-05-23 09:24:26,174 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 197 [2019-05-23 09:24:26,174 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:26,174 INFO L146 ILogger]: trace histogram [95, 95, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:26,174 INFO L146 ILogger]: === Iteration 96 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:26,174 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:26,174 INFO L146 ILogger]: Analyzing trace with hash -812421685, now seen corresponding path program 95 times [2019-05-23 09:24:26,175 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:26,188 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:26,191 INFO L146 ILogger]: Trace formula consists of 296 conjuncts, 97 conjunts are in the unsatisfiable core [2019-05-23 09:24:26,193 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:29,584 INFO L146 ILogger]: Checked inductivity of 9025 backedges. 0 proven. 9025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:29,584 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:29,584 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2019-05-23 09:24:29,584 INFO L146 ILogger]: Interpolant automaton has 98 states [2019-05-23 09:24:29,585 INFO L146 ILogger]: Constructing interpolant automaton starting with 98 interpolants. [2019-05-23 09:24:29,586 INFO L146 ILogger]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2019-05-23 09:24:29,586 INFO L146 ILogger]: Start difference. First operand 197 states and 197 transitions. Second operand 98 states. [2019-05-23 09:24:29,877 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:29,877 INFO L146 ILogger]: Finished difference Result 200 states and 200 transitions. [2019-05-23 09:24:29,877 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2019-05-23 09:24:29,877 INFO L146 ILogger]: Start accepts. Automaton has 98 states. Word has length 196 [2019-05-23 09:24:29,878 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:29,879 INFO L146 ILogger]: With dead ends: 200 [2019-05-23 09:24:29,879 INFO L146 ILogger]: Without dead ends: 200 [2019-05-23 09:24:29,879 INFO L146 ILogger]: 0 DeclaredPredicates, 195 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2019-05-23 09:24:29,879 INFO L146 ILogger]: Start minimizeSevpa. Operand 200 states. [2019-05-23 09:24:29,881 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 200 to 199. [2019-05-23 09:24:29,881 INFO L146 ILogger]: Start removeUnreachable. Operand 199 states. [2019-05-23 09:24:29,881 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 199 states to 199 states and 199 transitions. [2019-05-23 09:24:29,881 INFO L146 ILogger]: Start accepts. Automaton has 199 states and 199 transitions. Word has length 196 [2019-05-23 09:24:29,881 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:29,881 INFO L146 ILogger]: Abstraction has 199 states and 199 transitions. [2019-05-23 09:24:29,882 INFO L146 ILogger]: Interpolant automaton has 98 states. [2019-05-23 09:24:29,882 INFO L146 ILogger]: Start isEmpty. Operand 199 states and 199 transitions. [2019-05-23 09:24:29,882 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 199 [2019-05-23 09:24:29,883 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:29,883 INFO L146 ILogger]: trace histogram [96, 96, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:29,883 INFO L146 ILogger]: === Iteration 97 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:29,883 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:29,883 INFO L146 ILogger]: Analyzing trace with hash -1803498134, now seen corresponding path program 96 times [2019-05-23 09:24:29,884 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:29,894 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:29,897 INFO L146 ILogger]: Trace formula consists of 299 conjuncts, 98 conjunts are in the unsatisfiable core [2019-05-23 09:24:29,898 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:33,109 INFO L146 ILogger]: Checked inductivity of 9216 backedges. 0 proven. 9216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:33,110 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:33,110 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [98] total 98 [2019-05-23 09:24:33,110 INFO L146 ILogger]: Interpolant automaton has 99 states [2019-05-23 09:24:33,110 INFO L146 ILogger]: Constructing interpolant automaton starting with 99 interpolants. [2019-05-23 09:24:33,111 INFO L146 ILogger]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2019-05-23 09:24:33,111 INFO L146 ILogger]: Start difference. First operand 199 states and 199 transitions. Second operand 99 states. [2019-05-23 09:24:33,395 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:33,395 INFO L146 ILogger]: Finished difference Result 202 states and 202 transitions. [2019-05-23 09:24:33,395 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2019-05-23 09:24:33,396 INFO L146 ILogger]: Start accepts. Automaton has 99 states. Word has length 198 [2019-05-23 09:24:33,396 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:33,397 INFO L146 ILogger]: With dead ends: 202 [2019-05-23 09:24:33,397 INFO L146 ILogger]: Without dead ends: 202 [2019-05-23 09:24:33,398 INFO L146 ILogger]: 0 DeclaredPredicates, 197 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2019-05-23 09:24:33,398 INFO L146 ILogger]: Start minimizeSevpa. Operand 202 states. [2019-05-23 09:24:33,399 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 202 to 201. [2019-05-23 09:24:33,399 INFO L146 ILogger]: Start removeUnreachable. Operand 201 states. [2019-05-23 09:24:33,399 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2019-05-23 09:24:33,400 INFO L146 ILogger]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 198 [2019-05-23 09:24:33,400 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:33,400 INFO L146 ILogger]: Abstraction has 201 states and 201 transitions. [2019-05-23 09:24:33,400 INFO L146 ILogger]: Interpolant automaton has 99 states. [2019-05-23 09:24:33,400 INFO L146 ILogger]: Start isEmpty. Operand 201 states and 201 transitions. [2019-05-23 09:24:33,401 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 201 [2019-05-23 09:24:33,401 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:33,401 INFO L146 ILogger]: trace histogram [97, 97, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:33,401 INFO L146 ILogger]: === Iteration 98 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:33,401 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:33,401 INFO L146 ILogger]: Analyzing trace with hash -745225911, now seen corresponding path program 97 times [2019-05-23 09:24:33,402 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:33,414 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:33,417 INFO L146 ILogger]: Trace formula consists of 302 conjuncts, 99 conjunts are in the unsatisfiable core [2019-05-23 09:24:33,419 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:37,009 INFO L146 ILogger]: Checked inductivity of 9409 backedges. 0 proven. 9409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:37,009 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:37,009 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [99] total 99 [2019-05-23 09:24:37,009 INFO L146 ILogger]: Interpolant automaton has 100 states [2019-05-23 09:24:37,010 INFO L146 ILogger]: Constructing interpolant automaton starting with 100 interpolants. [2019-05-23 09:24:37,010 INFO L146 ILogger]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2019-05-23 09:24:37,010 INFO L146 ILogger]: Start difference. First operand 201 states and 201 transitions. Second operand 100 states. [2019-05-23 09:24:37,306 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:37,306 INFO L146 ILogger]: Finished difference Result 204 states and 204 transitions. [2019-05-23 09:24:37,306 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2019-05-23 09:24:37,307 INFO L146 ILogger]: Start accepts. Automaton has 100 states. Word has length 200 [2019-05-23 09:24:37,307 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:37,307 INFO L146 ILogger]: With dead ends: 204 [2019-05-23 09:24:37,307 INFO L146 ILogger]: Without dead ends: 204 [2019-05-23 09:24:37,308 INFO L146 ILogger]: 0 DeclaredPredicates, 199 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2019-05-23 09:24:37,308 INFO L146 ILogger]: Start minimizeSevpa. Operand 204 states. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 204 to 203. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Start removeUnreachable. Operand 203 states. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 203 states to 203 states and 203 transitions. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Start accepts. Automaton has 203 states and 203 transitions. Word has length 200 [2019-05-23 09:24:37,310 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Abstraction has 203 states and 203 transitions. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Interpolant automaton has 100 states. [2019-05-23 09:24:37,310 INFO L146 ILogger]: Start isEmpty. Operand 203 states and 203 transitions. [2019-05-23 09:24:37,311 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 203 [2019-05-23 09:24:37,311 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:37,311 INFO L146 ILogger]: trace histogram [98, 98, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:37,311 INFO L146 ILogger]: === Iteration 99 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:37,312 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:37,312 INFO L146 ILogger]: Analyzing trace with hash -1652868760, now seen corresponding path program 98 times [2019-05-23 09:24:37,312 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:37,321 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:37,323 INFO L146 ILogger]: Trace formula consists of 305 conjuncts, 100 conjunts are in the unsatisfiable core [2019-05-23 09:24:37,325 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:40,928 INFO L146 ILogger]: Checked inductivity of 9604 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:40,929 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:40,929 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [100] total 100 [2019-05-23 09:24:40,929 INFO L146 ILogger]: Interpolant automaton has 101 states [2019-05-23 09:24:40,930 INFO L146 ILogger]: Constructing interpolant automaton starting with 101 interpolants. [2019-05-23 09:24:40,930 INFO L146 ILogger]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2019-05-23 09:24:40,930 INFO L146 ILogger]: Start difference. First operand 203 states and 203 transitions. Second operand 101 states. [2019-05-23 09:24:41,216 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:41,217 INFO L146 ILogger]: Finished difference Result 206 states and 206 transitions. [2019-05-23 09:24:41,217 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2019-05-23 09:24:41,217 INFO L146 ILogger]: Start accepts. Automaton has 101 states. Word has length 202 [2019-05-23 09:24:41,217 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:41,218 INFO L146 ILogger]: With dead ends: 206 [2019-05-23 09:24:41,219 INFO L146 ILogger]: Without dead ends: 206 [2019-05-23 09:24:41,219 INFO L146 ILogger]: 0 DeclaredPredicates, 201 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2019-05-23 09:24:41,219 INFO L146 ILogger]: Start minimizeSevpa. Operand 206 states. [2019-05-23 09:24:41,221 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 206 to 205. [2019-05-23 09:24:41,221 INFO L146 ILogger]: Start removeUnreachable. Operand 205 states. [2019-05-23 09:24:41,222 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 205 states to 205 states and 205 transitions. [2019-05-23 09:24:41,222 INFO L146 ILogger]: Start accepts. Automaton has 205 states and 205 transitions. Word has length 202 [2019-05-23 09:24:41,222 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:41,222 INFO L146 ILogger]: Abstraction has 205 states and 205 transitions. [2019-05-23 09:24:41,222 INFO L146 ILogger]: Interpolant automaton has 101 states. [2019-05-23 09:24:41,222 INFO L146 ILogger]: Start isEmpty. Operand 205 states and 205 transitions. [2019-05-23 09:24:41,223 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 205 [2019-05-23 09:24:41,223 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:41,223 INFO L146 ILogger]: trace histogram [99, 99, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:41,223 INFO L146 ILogger]: === Iteration 100 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:41,223 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:41,223 INFO L146 ILogger]: Analyzing trace with hash -2019285561, now seen corresponding path program 99 times [2019-05-23 09:24:41,224 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:41,234 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:41,236 INFO L146 ILogger]: Trace formula consists of 308 conjuncts, 101 conjunts are in the unsatisfiable core [2019-05-23 09:24:41,238 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:44,880 INFO L146 ILogger]: Checked inductivity of 9801 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:44,881 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:44,881 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [101] total 101 [2019-05-23 09:24:44,881 INFO L146 ILogger]: Interpolant automaton has 102 states [2019-05-23 09:24:44,882 INFO L146 ILogger]: Constructing interpolant automaton starting with 102 interpolants. [2019-05-23 09:24:44,882 INFO L146 ILogger]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2019-05-23 09:24:44,882 INFO L146 ILogger]: Start difference. First operand 205 states and 205 transitions. Second operand 102 states. [2019-05-23 09:24:45,181 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:45,181 INFO L146 ILogger]: Finished difference Result 208 states and 208 transitions. [2019-05-23 09:24:45,181 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2019-05-23 09:24:45,182 INFO L146 ILogger]: Start accepts. Automaton has 102 states. Word has length 204 [2019-05-23 09:24:45,182 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:45,182 INFO L146 ILogger]: With dead ends: 208 [2019-05-23 09:24:45,183 INFO L146 ILogger]: Without dead ends: 208 [2019-05-23 09:24:45,183 INFO L146 ILogger]: 0 DeclaredPredicates, 203 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2019-05-23 09:24:45,183 INFO L146 ILogger]: Start minimizeSevpa. Operand 208 states. [2019-05-23 09:24:45,184 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 208 to 207. [2019-05-23 09:24:45,184 INFO L146 ILogger]: Start removeUnreachable. Operand 207 states. [2019-05-23 09:24:45,185 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2019-05-23 09:24:45,185 INFO L146 ILogger]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 204 [2019-05-23 09:24:45,185 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:45,185 INFO L146 ILogger]: Abstraction has 207 states and 207 transitions. [2019-05-23 09:24:45,185 INFO L146 ILogger]: Interpolant automaton has 102 states. [2019-05-23 09:24:45,185 INFO L146 ILogger]: Start isEmpty. Operand 207 states and 207 transitions. [2019-05-23 09:24:45,186 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 207 [2019-05-23 09:24:45,186 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:45,186 INFO L146 ILogger]: trace histogram [100, 100, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:45,186 INFO L146 ILogger]: === Iteration 101 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:45,187 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:45,187 INFO L146 ILogger]: Analyzing trace with hash -1958513050, now seen corresponding path program 100 times [2019-05-23 09:24:45,187 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:45,201 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:45,204 INFO L146 ILogger]: Trace formula consists of 311 conjuncts, 102 conjunts are in the unsatisfiable core [2019-05-23 09:24:45,206 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:48,723 INFO L146 ILogger]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:48,723 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:48,723 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [102] total 102 [2019-05-23 09:24:48,724 INFO L146 ILogger]: Interpolant automaton has 103 states [2019-05-23 09:24:48,724 INFO L146 ILogger]: Constructing interpolant automaton starting with 103 interpolants. [2019-05-23 09:24:48,724 INFO L146 ILogger]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2019-05-23 09:24:48,725 INFO L146 ILogger]: Start difference. First operand 207 states and 207 transitions. Second operand 103 states. [2019-05-23 09:24:49,040 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:49,040 INFO L146 ILogger]: Finished difference Result 210 states and 210 transitions. [2019-05-23 09:24:49,040 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2019-05-23 09:24:49,040 INFO L146 ILogger]: Start accepts. Automaton has 103 states. Word has length 206 [2019-05-23 09:24:49,041 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:49,041 INFO L146 ILogger]: With dead ends: 210 [2019-05-23 09:24:49,041 INFO L146 ILogger]: Without dead ends: 210 [2019-05-23 09:24:49,042 INFO L146 ILogger]: 0 DeclaredPredicates, 205 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2019-05-23 09:24:49,042 INFO L146 ILogger]: Start minimizeSevpa. Operand 210 states. [2019-05-23 09:24:49,043 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 210 to 209. [2019-05-23 09:24:49,043 INFO L146 ILogger]: Start removeUnreachable. Operand 209 states. [2019-05-23 09:24:49,044 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2019-05-23 09:24:49,044 INFO L146 ILogger]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 206 [2019-05-23 09:24:49,044 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:49,044 INFO L146 ILogger]: Abstraction has 209 states and 209 transitions. [2019-05-23 09:24:49,044 INFO L146 ILogger]: Interpolant automaton has 103 states. [2019-05-23 09:24:49,044 INFO L146 ILogger]: Start isEmpty. Operand 209 states and 209 transitions. [2019-05-23 09:24:49,045 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 209 [2019-05-23 09:24:49,045 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:49,045 INFO L146 ILogger]: trace histogram [101, 101, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:49,045 INFO L146 ILogger]: === Iteration 102 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:49,045 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:49,045 INFO L146 ILogger]: Analyzing trace with hash 609295173, now seen corresponding path program 101 times [2019-05-23 09:24:49,046 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:49,056 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:49,059 INFO L146 ILogger]: Trace formula consists of 314 conjuncts, 103 conjunts are in the unsatisfiable core [2019-05-23 09:24:49,061 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:52,888 INFO L146 ILogger]: Checked inductivity of 10201 backedges. 0 proven. 10201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:52,888 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:52,888 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [103] total 103 [2019-05-23 09:24:52,888 INFO L146 ILogger]: Interpolant automaton has 104 states [2019-05-23 09:24:52,889 INFO L146 ILogger]: Constructing interpolant automaton starting with 104 interpolants. [2019-05-23 09:24:52,890 INFO L146 ILogger]: CoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2019-05-23 09:24:52,890 INFO L146 ILogger]: Start difference. First operand 209 states and 209 transitions. Second operand 104 states. [2019-05-23 09:24:53,198 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:53,199 INFO L146 ILogger]: Finished difference Result 212 states and 212 transitions. [2019-05-23 09:24:53,199 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2019-05-23 09:24:53,199 INFO L146 ILogger]: Start accepts. Automaton has 104 states. Word has length 208 [2019-05-23 09:24:53,200 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:53,201 INFO L146 ILogger]: With dead ends: 212 [2019-05-23 09:24:53,201 INFO L146 ILogger]: Without dead ends: 212 [2019-05-23 09:24:53,202 INFO L146 ILogger]: 0 DeclaredPredicates, 207 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=5356, Invalid=5356, Unknown=0, NotChecked=0, Total=10712 [2019-05-23 09:24:53,202 INFO L146 ILogger]: Start minimizeSevpa. Operand 212 states. [2019-05-23 09:24:53,204 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 212 to 211. [2019-05-23 09:24:53,204 INFO L146 ILogger]: Start removeUnreachable. Operand 211 states. [2019-05-23 09:24:53,204 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2019-05-23 09:24:53,205 INFO L146 ILogger]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 208 [2019-05-23 09:24:53,205 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:53,205 INFO L146 ILogger]: Abstraction has 211 states and 211 transitions. [2019-05-23 09:24:53,205 INFO L146 ILogger]: Interpolant automaton has 104 states. [2019-05-23 09:24:53,205 INFO L146 ILogger]: Start isEmpty. Operand 211 states and 211 transitions. [2019-05-23 09:24:53,206 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 211 [2019-05-23 09:24:53,206 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:53,206 INFO L146 ILogger]: trace histogram [102, 102, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:53,207 INFO L146 ILogger]: === Iteration 103 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:53,207 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:53,207 INFO L146 ILogger]: Analyzing trace with hash -1333197724, now seen corresponding path program 102 times [2019-05-23 09:24:53,207 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:53,218 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:53,221 INFO L146 ILogger]: Trace formula consists of 317 conjuncts, 104 conjunts are in the unsatisfiable core [2019-05-23 09:24:53,223 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:24:57,188 INFO L146 ILogger]: Checked inductivity of 10404 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:24:57,188 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:24:57,189 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [104] total 104 [2019-05-23 09:24:57,189 INFO L146 ILogger]: Interpolant automaton has 105 states [2019-05-23 09:24:57,189 INFO L146 ILogger]: Constructing interpolant automaton starting with 105 interpolants. [2019-05-23 09:24:57,190 INFO L146 ILogger]: CoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2019-05-23 09:24:57,190 INFO L146 ILogger]: Start difference. First operand 211 states and 211 transitions. Second operand 105 states. [2019-05-23 09:24:57,524 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:24:57,525 INFO L146 ILogger]: Finished difference Result 214 states and 214 transitions. [2019-05-23 09:24:57,525 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2019-05-23 09:24:57,525 INFO L146 ILogger]: Start accepts. Automaton has 105 states. Word has length 210 [2019-05-23 09:24:57,526 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:24:57,526 INFO L146 ILogger]: With dead ends: 214 [2019-05-23 09:24:57,526 INFO L146 ILogger]: Without dead ends: 214 [2019-05-23 09:24:57,527 INFO L146 ILogger]: 0 DeclaredPredicates, 209 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5460, Invalid=5460, Unknown=0, NotChecked=0, Total=10920 [2019-05-23 09:24:57,527 INFO L146 ILogger]: Start minimizeSevpa. Operand 214 states. [2019-05-23 09:24:57,529 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 214 to 213. [2019-05-23 09:24:57,529 INFO L146 ILogger]: Start removeUnreachable. Operand 213 states. [2019-05-23 09:24:57,530 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 213 states to 213 states and 213 transitions. [2019-05-23 09:24:57,530 INFO L146 ILogger]: Start accepts. Automaton has 213 states and 213 transitions. Word has length 210 [2019-05-23 09:24:57,530 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:24:57,530 INFO L146 ILogger]: Abstraction has 213 states and 213 transitions. [2019-05-23 09:24:57,530 INFO L146 ILogger]: Interpolant automaton has 105 states. [2019-05-23 09:24:57,530 INFO L146 ILogger]: Start isEmpty. Operand 213 states and 213 transitions. [2019-05-23 09:24:57,531 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 213 [2019-05-23 09:24:57,531 INFO L146 ILogger]: Found error trace [2019-05-23 09:24:57,532 INFO L146 ILogger]: trace histogram [103, 103, 1, 1, 1, 1, 1, 1] [2019-05-23 09:24:57,532 INFO L146 ILogger]: === Iteration 104 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:24:57,532 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:24:57,532 INFO L146 ILogger]: Analyzing trace with hash 241902019, now seen corresponding path program 103 times [2019-05-23 09:24:57,533 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:24:57,546 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:24:57,548 INFO L146 ILogger]: Trace formula consists of 320 conjuncts, 105 conjunts are in the unsatisfiable core [2019-05-23 09:24:57,550 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:01,502 INFO L146 ILogger]: Checked inductivity of 10609 backedges. 0 proven. 10609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:01,502 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:01,503 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [105] total 105 [2019-05-23 09:25:01,503 INFO L146 ILogger]: Interpolant automaton has 106 states [2019-05-23 09:25:01,504 INFO L146 ILogger]: Constructing interpolant automaton starting with 106 interpolants. [2019-05-23 09:25:01,504 INFO L146 ILogger]: CoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2019-05-23 09:25:01,505 INFO L146 ILogger]: Start difference. First operand 213 states and 213 transitions. Second operand 106 states. [2019-05-23 09:25:01,828 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:01,828 INFO L146 ILogger]: Finished difference Result 216 states and 216 transitions. [2019-05-23 09:25:01,828 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2019-05-23 09:25:01,829 INFO L146 ILogger]: Start accepts. Automaton has 106 states. Word has length 212 [2019-05-23 09:25:01,829 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:01,829 INFO L146 ILogger]: With dead ends: 216 [2019-05-23 09:25:01,829 INFO L146 ILogger]: Without dead ends: 216 [2019-05-23 09:25:01,830 INFO L146 ILogger]: 0 DeclaredPredicates, 211 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5565, Invalid=5565, Unknown=0, NotChecked=0, Total=11130 [2019-05-23 09:25:01,830 INFO L146 ILogger]: Start minimizeSevpa. Operand 216 states. [2019-05-23 09:25:01,831 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 216 to 215. [2019-05-23 09:25:01,831 INFO L146 ILogger]: Start removeUnreachable. Operand 215 states. [2019-05-23 09:25:01,832 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 215 states to 215 states and 215 transitions. [2019-05-23 09:25:01,832 INFO L146 ILogger]: Start accepts. Automaton has 215 states and 215 transitions. Word has length 212 [2019-05-23 09:25:01,832 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:01,832 INFO L146 ILogger]: Abstraction has 215 states and 215 transitions. [2019-05-23 09:25:01,832 INFO L146 ILogger]: Interpolant automaton has 106 states. [2019-05-23 09:25:01,832 INFO L146 ILogger]: Start isEmpty. Operand 215 states and 215 transitions. [2019-05-23 09:25:01,833 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 215 [2019-05-23 09:25:01,833 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:01,833 INFO L146 ILogger]: trace histogram [104, 104, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:01,833 INFO L146 ILogger]: === Iteration 105 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:01,833 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:01,833 INFO L146 ILogger]: Analyzing trace with hash 2084266850, now seen corresponding path program 104 times [2019-05-23 09:25:01,834 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:01,846 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:01,848 INFO L146 ILogger]: Trace formula consists of 323 conjuncts, 106 conjunts are in the unsatisfiable core [2019-05-23 09:25:01,851 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:06,165 INFO L146 ILogger]: Checked inductivity of 10816 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:06,166 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:06,166 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [106] total 106 [2019-05-23 09:25:06,166 INFO L146 ILogger]: Interpolant automaton has 107 states [2019-05-23 09:25:06,167 INFO L146 ILogger]: Constructing interpolant automaton starting with 107 interpolants. [2019-05-23 09:25:06,167 INFO L146 ILogger]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2019-05-23 09:25:06,167 INFO L146 ILogger]: Start difference. First operand 215 states and 215 transitions. Second operand 107 states. [2019-05-23 09:25:06,488 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:06,488 INFO L146 ILogger]: Finished difference Result 218 states and 218 transitions. [2019-05-23 09:25:06,489 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2019-05-23 09:25:06,489 INFO L146 ILogger]: Start accepts. Automaton has 107 states. Word has length 214 [2019-05-23 09:25:06,489 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:06,490 INFO L146 ILogger]: With dead ends: 218 [2019-05-23 09:25:06,490 INFO L146 ILogger]: Without dead ends: 218 [2019-05-23 09:25:06,490 INFO L146 ILogger]: 0 DeclaredPredicates, 213 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2019-05-23 09:25:06,491 INFO L146 ILogger]: Start minimizeSevpa. Operand 218 states. [2019-05-23 09:25:06,493 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 218 to 217. [2019-05-23 09:25:06,493 INFO L146 ILogger]: Start removeUnreachable. Operand 217 states. [2019-05-23 09:25:06,493 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 217 states to 217 states and 217 transitions. [2019-05-23 09:25:06,494 INFO L146 ILogger]: Start accepts. Automaton has 217 states and 217 transitions. Word has length 214 [2019-05-23 09:25:06,494 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:06,494 INFO L146 ILogger]: Abstraction has 217 states and 217 transitions. [2019-05-23 09:25:06,494 INFO L146 ILogger]: Interpolant automaton has 107 states. [2019-05-23 09:25:06,494 INFO L146 ILogger]: Start isEmpty. Operand 217 states and 217 transitions. [2019-05-23 09:25:06,495 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 217 [2019-05-23 09:25:06,495 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:06,495 INFO L146 ILogger]: trace histogram [105, 105, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:06,495 INFO L146 ILogger]: === Iteration 106 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:06,496 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:06,496 INFO L146 ILogger]: Analyzing trace with hash -1224623807, now seen corresponding path program 105 times [2019-05-23 09:25:06,496 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:06,508 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:06,511 INFO L146 ILogger]: Trace formula consists of 326 conjuncts, 107 conjunts are in the unsatisfiable core [2019-05-23 09:25:06,513 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:10,506 INFO L146 ILogger]: Checked inductivity of 11025 backedges. 0 proven. 11025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:10,506 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:10,506 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [107] total 107 [2019-05-23 09:25:10,507 INFO L146 ILogger]: Interpolant automaton has 108 states [2019-05-23 09:25:10,507 INFO L146 ILogger]: Constructing interpolant automaton starting with 108 interpolants. [2019-05-23 09:25:10,507 INFO L146 ILogger]: CoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2019-05-23 09:25:10,508 INFO L146 ILogger]: Start difference. First operand 217 states and 217 transitions. Second operand 108 states. [2019-05-23 09:25:10,836 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:10,836 INFO L146 ILogger]: Finished difference Result 220 states and 220 transitions. [2019-05-23 09:25:10,836 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2019-05-23 09:25:10,837 INFO L146 ILogger]: Start accepts. Automaton has 108 states. Word has length 216 [2019-05-23 09:25:10,837 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:10,838 INFO L146 ILogger]: With dead ends: 220 [2019-05-23 09:25:10,838 INFO L146 ILogger]: Without dead ends: 220 [2019-05-23 09:25:10,838 INFO L146 ILogger]: 0 DeclaredPredicates, 215 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5778, Invalid=5778, Unknown=0, NotChecked=0, Total=11556 [2019-05-23 09:25:10,839 INFO L146 ILogger]: Start minimizeSevpa. Operand 220 states. [2019-05-23 09:25:10,840 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 220 to 219. [2019-05-23 09:25:10,840 INFO L146 ILogger]: Start removeUnreachable. Operand 219 states. [2019-05-23 09:25:10,841 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 219 states to 219 states and 219 transitions. [2019-05-23 09:25:10,841 INFO L146 ILogger]: Start accepts. Automaton has 219 states and 219 transitions. Word has length 216 [2019-05-23 09:25:10,841 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:10,841 INFO L146 ILogger]: Abstraction has 219 states and 219 transitions. [2019-05-23 09:25:10,841 INFO L146 ILogger]: Interpolant automaton has 108 states. [2019-05-23 09:25:10,841 INFO L146 ILogger]: Start isEmpty. Operand 219 states and 219 transitions. [2019-05-23 09:25:10,842 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 219 [2019-05-23 09:25:10,842 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:10,842 INFO L146 ILogger]: trace histogram [106, 106, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:10,842 INFO L146 ILogger]: === Iteration 107 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:10,843 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:10,843 INFO L146 ILogger]: Analyzing trace with hash 1502221152, now seen corresponding path program 106 times [2019-05-23 09:25:10,843 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:10,858 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:10,860 INFO L146 ILogger]: Trace formula consists of 329 conjuncts, 108 conjunts are in the unsatisfiable core [2019-05-23 09:25:10,862 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:14,752 INFO L146 ILogger]: Checked inductivity of 11236 backedges. 0 proven. 11236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:14,753 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:14,753 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [108] total 108 [2019-05-23 09:25:14,753 INFO L146 ILogger]: Interpolant automaton has 109 states [2019-05-23 09:25:14,754 INFO L146 ILogger]: Constructing interpolant automaton starting with 109 interpolants. [2019-05-23 09:25:14,754 INFO L146 ILogger]: CoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2019-05-23 09:25:14,754 INFO L146 ILogger]: Start difference. First operand 219 states and 219 transitions. Second operand 109 states. [2019-05-23 09:25:15,151 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:15,152 INFO L146 ILogger]: Finished difference Result 222 states and 222 transitions. [2019-05-23 09:25:15,152 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2019-05-23 09:25:15,152 INFO L146 ILogger]: Start accepts. Automaton has 109 states. Word has length 218 [2019-05-23 09:25:15,152 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:15,153 INFO L146 ILogger]: With dead ends: 222 [2019-05-23 09:25:15,153 INFO L146 ILogger]: Without dead ends: 222 [2019-05-23 09:25:15,154 INFO L146 ILogger]: 0 DeclaredPredicates, 217 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5886, Invalid=5886, Unknown=0, NotChecked=0, Total=11772 [2019-05-23 09:25:15,154 INFO L146 ILogger]: Start minimizeSevpa. Operand 222 states. [2019-05-23 09:25:15,155 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 222 to 221. [2019-05-23 09:25:15,156 INFO L146 ILogger]: Start removeUnreachable. Operand 221 states. [2019-05-23 09:25:15,156 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 221 states to 221 states and 221 transitions. [2019-05-23 09:25:15,156 INFO L146 ILogger]: Start accepts. Automaton has 221 states and 221 transitions. Word has length 218 [2019-05-23 09:25:15,156 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:15,156 INFO L146 ILogger]: Abstraction has 221 states and 221 transitions. [2019-05-23 09:25:15,157 INFO L146 ILogger]: Interpolant automaton has 109 states. [2019-05-23 09:25:15,157 INFO L146 ILogger]: Start isEmpty. Operand 221 states and 221 transitions. [2019-05-23 09:25:15,157 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 221 [2019-05-23 09:25:15,157 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:15,158 INFO L146 ILogger]: trace histogram [107, 107, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:15,158 INFO L146 ILogger]: === Iteration 108 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:15,158 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:15,158 INFO L146 ILogger]: Analyzing trace with hash 2070176191, now seen corresponding path program 107 times [2019-05-23 09:25:15,159 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:15,169 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:15,171 INFO L146 ILogger]: Trace formula consists of 332 conjuncts, 109 conjunts are in the unsatisfiable core [2019-05-23 09:25:15,173 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:19,181 INFO L146 ILogger]: Checked inductivity of 11449 backedges. 0 proven. 11449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:19,181 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:19,181 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [109] total 109 [2019-05-23 09:25:19,182 INFO L146 ILogger]: Interpolant automaton has 110 states [2019-05-23 09:25:19,183 INFO L146 ILogger]: Constructing interpolant automaton starting with 110 interpolants. [2019-05-23 09:25:19,183 INFO L146 ILogger]: CoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2019-05-23 09:25:19,183 INFO L146 ILogger]: Start difference. First operand 221 states and 221 transitions. Second operand 110 states. [2019-05-23 09:25:19,529 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:19,530 INFO L146 ILogger]: Finished difference Result 224 states and 224 transitions. [2019-05-23 09:25:19,530 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2019-05-23 09:25:19,530 INFO L146 ILogger]: Start accepts. Automaton has 110 states. Word has length 220 [2019-05-23 09:25:19,530 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:19,530 INFO L146 ILogger]: With dead ends: 224 [2019-05-23 09:25:19,531 INFO L146 ILogger]: Without dead ends: 224 [2019-05-23 09:25:19,531 INFO L146 ILogger]: 0 DeclaredPredicates, 219 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=5995, Invalid=5995, Unknown=0, NotChecked=0, Total=11990 [2019-05-23 09:25:19,531 INFO L146 ILogger]: Start minimizeSevpa. Operand 224 states. [2019-05-23 09:25:19,533 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 224 to 223. [2019-05-23 09:25:19,533 INFO L146 ILogger]: Start removeUnreachable. Operand 223 states. [2019-05-23 09:25:19,533 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2019-05-23 09:25:19,533 INFO L146 ILogger]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 220 [2019-05-23 09:25:19,534 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:19,534 INFO L146 ILogger]: Abstraction has 223 states and 223 transitions. [2019-05-23 09:25:19,534 INFO L146 ILogger]: Interpolant automaton has 110 states. [2019-05-23 09:25:19,534 INFO L146 ILogger]: Start isEmpty. Operand 223 states and 223 transitions. [2019-05-23 09:25:19,534 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 223 [2019-05-23 09:25:19,534 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:19,534 INFO L146 ILogger]: trace histogram [108, 108, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:19,535 INFO L146 ILogger]: === Iteration 109 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:19,535 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:19,535 INFO L146 ILogger]: Analyzing trace with hash -1880845218, now seen corresponding path program 108 times [2019-05-23 09:25:19,536 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:19,551 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:19,553 INFO L146 ILogger]: Trace formula consists of 335 conjuncts, 110 conjunts are in the unsatisfiable core [2019-05-23 09:25:19,555 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:23,743 INFO L146 ILogger]: Checked inductivity of 11664 backedges. 0 proven. 11664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:23,743 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:23,743 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [110] total 110 [2019-05-23 09:25:23,744 INFO L146 ILogger]: Interpolant automaton has 111 states [2019-05-23 09:25:23,744 INFO L146 ILogger]: Constructing interpolant automaton starting with 111 interpolants. [2019-05-23 09:25:23,745 INFO L146 ILogger]: CoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2019-05-23 09:25:23,745 INFO L146 ILogger]: Start difference. First operand 223 states and 223 transitions. Second operand 111 states. [2019-05-23 09:25:24,107 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:24,107 INFO L146 ILogger]: Finished difference Result 226 states and 226 transitions. [2019-05-23 09:25:24,108 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2019-05-23 09:25:24,108 INFO L146 ILogger]: Start accepts. Automaton has 111 states. Word has length 222 [2019-05-23 09:25:24,108 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:24,108 INFO L146 ILogger]: With dead ends: 226 [2019-05-23 09:25:24,108 INFO L146 ILogger]: Without dead ends: 226 [2019-05-23 09:25:24,109 INFO L146 ILogger]: 0 DeclaredPredicates, 221 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=6105, Invalid=6105, Unknown=0, NotChecked=0, Total=12210 [2019-05-23 09:25:24,109 INFO L146 ILogger]: Start minimizeSevpa. Operand 226 states. [2019-05-23 09:25:24,110 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 226 to 225. [2019-05-23 09:25:24,110 INFO L146 ILogger]: Start removeUnreachable. Operand 225 states. [2019-05-23 09:25:24,110 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 225 states to 225 states and 225 transitions. [2019-05-23 09:25:24,110 INFO L146 ILogger]: Start accepts. Automaton has 225 states and 225 transitions. Word has length 222 [2019-05-23 09:25:24,111 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:24,111 INFO L146 ILogger]: Abstraction has 225 states and 225 transitions. [2019-05-23 09:25:24,111 INFO L146 ILogger]: Interpolant automaton has 111 states. [2019-05-23 09:25:24,111 INFO L146 ILogger]: Start isEmpty. Operand 225 states and 225 transitions. [2019-05-23 09:25:24,111 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 225 [2019-05-23 09:25:24,111 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:24,111 INFO L146 ILogger]: trace histogram [109, 109, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:24,112 INFO L146 ILogger]: === Iteration 110 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:24,112 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:24,112 INFO L146 ILogger]: Analyzing trace with hash -2061329603, now seen corresponding path program 109 times [2019-05-23 09:25:24,112 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:24,123 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:24,125 INFO L146 ILogger]: Trace formula consists of 338 conjuncts, 111 conjunts are in the unsatisfiable core [2019-05-23 09:25:24,126 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:28,548 INFO L146 ILogger]: Checked inductivity of 11881 backedges. 0 proven. 11881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:28,548 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:28,548 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [111] total 111 [2019-05-23 09:25:28,549 INFO L146 ILogger]: Interpolant automaton has 112 states [2019-05-23 09:25:28,549 INFO L146 ILogger]: Constructing interpolant automaton starting with 112 interpolants. [2019-05-23 09:25:28,550 INFO L146 ILogger]: CoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2019-05-23 09:25:28,550 INFO L146 ILogger]: Start difference. First operand 225 states and 225 transitions. Second operand 112 states. [2019-05-23 09:25:28,901 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:28,901 INFO L146 ILogger]: Finished difference Result 228 states and 228 transitions. [2019-05-23 09:25:28,901 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2019-05-23 09:25:28,901 INFO L146 ILogger]: Start accepts. Automaton has 112 states. Word has length 224 [2019-05-23 09:25:28,902 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:28,902 INFO L146 ILogger]: With dead ends: 228 [2019-05-23 09:25:28,902 INFO L146 ILogger]: Without dead ends: 228 [2019-05-23 09:25:28,902 INFO L146 ILogger]: 0 DeclaredPredicates, 223 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=6216, Invalid=6216, Unknown=0, NotChecked=0, Total=12432 [2019-05-23 09:25:28,903 INFO L146 ILogger]: Start minimizeSevpa. Operand 228 states. [2019-05-23 09:25:28,904 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 228 to 227. [2019-05-23 09:25:28,904 INFO L146 ILogger]: Start removeUnreachable. Operand 227 states. [2019-05-23 09:25:28,904 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 227 states to 227 states and 227 transitions. [2019-05-23 09:25:28,905 INFO L146 ILogger]: Start accepts. Automaton has 227 states and 227 transitions. Word has length 224 [2019-05-23 09:25:28,905 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:28,905 INFO L146 ILogger]: Abstraction has 227 states and 227 transitions. [2019-05-23 09:25:28,905 INFO L146 ILogger]: Interpolant automaton has 112 states. [2019-05-23 09:25:28,905 INFO L146 ILogger]: Start isEmpty. Operand 227 states and 227 transitions. [2019-05-23 09:25:28,906 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 227 [2019-05-23 09:25:28,906 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:28,906 INFO L146 ILogger]: trace histogram [110, 110, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:28,906 INFO L146 ILogger]: === Iteration 111 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:28,906 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:28,907 INFO L146 ILogger]: Analyzing trace with hash 586835548, now seen corresponding path program 110 times [2019-05-23 09:25:28,907 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:28,918 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:28,921 INFO L146 ILogger]: Trace formula consists of 341 conjuncts, 112 conjunts are in the unsatisfiable core [2019-05-23 09:25:28,923 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:33,334 INFO L146 ILogger]: Checked inductivity of 12100 backedges. 0 proven. 12100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:33,335 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:33,335 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [112] total 112 [2019-05-23 09:25:33,335 INFO L146 ILogger]: Interpolant automaton has 113 states [2019-05-23 09:25:33,336 INFO L146 ILogger]: Constructing interpolant automaton starting with 113 interpolants. [2019-05-23 09:25:33,336 INFO L146 ILogger]: CoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2019-05-23 09:25:33,336 INFO L146 ILogger]: Start difference. First operand 227 states and 227 transitions. Second operand 113 states. [2019-05-23 09:25:33,687 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:33,687 INFO L146 ILogger]: Finished difference Result 230 states and 230 transitions. [2019-05-23 09:25:33,688 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2019-05-23 09:25:33,688 INFO L146 ILogger]: Start accepts. Automaton has 113 states. Word has length 226 [2019-05-23 09:25:33,688 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:33,688 INFO L146 ILogger]: With dead ends: 230 [2019-05-23 09:25:33,688 INFO L146 ILogger]: Without dead ends: 230 [2019-05-23 09:25:33,689 INFO L146 ILogger]: 0 DeclaredPredicates, 225 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=6328, Invalid=6328, Unknown=0, NotChecked=0, Total=12656 [2019-05-23 09:25:33,689 INFO L146 ILogger]: Start minimizeSevpa. Operand 230 states. [2019-05-23 09:25:33,690 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 230 to 229. [2019-05-23 09:25:33,690 INFO L146 ILogger]: Start removeUnreachable. Operand 229 states. [2019-05-23 09:25:33,690 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 229 states to 229 states and 229 transitions. [2019-05-23 09:25:33,690 INFO L146 ILogger]: Start accepts. Automaton has 229 states and 229 transitions. Word has length 226 [2019-05-23 09:25:33,690 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:33,691 INFO L146 ILogger]: Abstraction has 229 states and 229 transitions. [2019-05-23 09:25:33,691 INFO L146 ILogger]: Interpolant automaton has 113 states. [2019-05-23 09:25:33,691 INFO L146 ILogger]: Start isEmpty. Operand 229 states and 229 transitions. [2019-05-23 09:25:33,691 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 229 [2019-05-23 09:25:33,691 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:33,691 INFO L146 ILogger]: trace histogram [111, 111, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:33,691 INFO L146 ILogger]: === Iteration 112 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:33,692 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:33,692 INFO L146 ILogger]: Analyzing trace with hash -1442060869, now seen corresponding path program 111 times [2019-05-23 09:25:33,692 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:33,707 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:33,710 INFO L146 ILogger]: Trace formula consists of 344 conjuncts, 113 conjunts are in the unsatisfiable core [2019-05-23 09:25:33,711 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:38,212 INFO L146 ILogger]: Checked inductivity of 12321 backedges. 0 proven. 12321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:38,212 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:38,213 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [113] total 113 [2019-05-23 09:25:38,213 INFO L146 ILogger]: Interpolant automaton has 114 states [2019-05-23 09:25:38,213 INFO L146 ILogger]: Constructing interpolant automaton starting with 114 interpolants. [2019-05-23 09:25:38,214 INFO L146 ILogger]: CoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2019-05-23 09:25:38,214 INFO L146 ILogger]: Start difference. First operand 229 states and 229 transitions. Second operand 114 states. [2019-05-23 09:25:38,556 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:38,556 INFO L146 ILogger]: Finished difference Result 232 states and 232 transitions. [2019-05-23 09:25:38,557 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2019-05-23 09:25:38,557 INFO L146 ILogger]: Start accepts. Automaton has 114 states. Word has length 228 [2019-05-23 09:25:38,557 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:38,558 INFO L146 ILogger]: With dead ends: 232 [2019-05-23 09:25:38,558 INFO L146 ILogger]: Without dead ends: 232 [2019-05-23 09:25:38,558 INFO L146 ILogger]: 0 DeclaredPredicates, 227 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=6441, Invalid=6441, Unknown=0, NotChecked=0, Total=12882 [2019-05-23 09:25:38,559 INFO L146 ILogger]: Start minimizeSevpa. Operand 232 states. [2019-05-23 09:25:38,560 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 232 to 231. [2019-05-23 09:25:38,561 INFO L146 ILogger]: Start removeUnreachable. Operand 231 states. [2019-05-23 09:25:38,561 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 231 states to 231 states and 231 transitions. [2019-05-23 09:25:38,561 INFO L146 ILogger]: Start accepts. Automaton has 231 states and 231 transitions. Word has length 228 [2019-05-23 09:25:38,561 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:38,562 INFO L146 ILogger]: Abstraction has 231 states and 231 transitions. [2019-05-23 09:25:38,562 INFO L146 ILogger]: Interpolant automaton has 114 states. [2019-05-23 09:25:38,562 INFO L146 ILogger]: Start isEmpty. Operand 231 states and 231 transitions. [2019-05-23 09:25:38,562 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 231 [2019-05-23 09:25:38,562 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:38,562 INFO L146 ILogger]: trace histogram [112, 112, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:38,563 INFO L146 ILogger]: === Iteration 113 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:38,563 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:38,563 INFO L146 ILogger]: Analyzing trace with hash -1296365222, now seen corresponding path program 112 times [2019-05-23 09:25:38,563 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:38,574 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:38,576 INFO L146 ILogger]: Trace formula consists of 347 conjuncts, 114 conjunts are in the unsatisfiable core [2019-05-23 09:25:38,577 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:43,297 INFO L146 ILogger]: Checked inductivity of 12544 backedges. 0 proven. 12544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:43,297 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:43,297 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [114] total 114 [2019-05-23 09:25:43,298 INFO L146 ILogger]: Interpolant automaton has 115 states [2019-05-23 09:25:43,298 INFO L146 ILogger]: Constructing interpolant automaton starting with 115 interpolants. [2019-05-23 09:25:43,299 INFO L146 ILogger]: CoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2019-05-23 09:25:43,299 INFO L146 ILogger]: Start difference. First operand 231 states and 231 transitions. Second operand 115 states. [2019-05-23 09:25:43,647 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:43,647 INFO L146 ILogger]: Finished difference Result 234 states and 234 transitions. [2019-05-23 09:25:43,647 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2019-05-23 09:25:43,648 INFO L146 ILogger]: Start accepts. Automaton has 115 states. Word has length 230 [2019-05-23 09:25:43,648 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:43,648 INFO L146 ILogger]: With dead ends: 234 [2019-05-23 09:25:43,649 INFO L146 ILogger]: Without dead ends: 234 [2019-05-23 09:25:43,649 INFO L146 ILogger]: 0 DeclaredPredicates, 229 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=6555, Invalid=6555, Unknown=0, NotChecked=0, Total=13110 [2019-05-23 09:25:43,650 INFO L146 ILogger]: Start minimizeSevpa. Operand 234 states. [2019-05-23 09:25:43,651 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 234 to 233. [2019-05-23 09:25:43,651 INFO L146 ILogger]: Start removeUnreachable. Operand 233 states. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 233 states to 233 states and 233 transitions. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Start accepts. Automaton has 233 states and 233 transitions. Word has length 230 [2019-05-23 09:25:43,652 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Abstraction has 233 states and 233 transitions. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Interpolant automaton has 115 states. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Start isEmpty. Operand 233 states and 233 transitions. [2019-05-23 09:25:43,652 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 233 [2019-05-23 09:25:43,653 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:43,653 INFO L146 ILogger]: trace histogram [113, 113, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:43,653 INFO L146 ILogger]: === Iteration 114 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:43,653 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:43,653 INFO L146 ILogger]: Analyzing trace with hash 1278198073, now seen corresponding path program 113 times [2019-05-23 09:25:43,654 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:43,669 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:43,671 INFO L146 ILogger]: Trace formula consists of 350 conjuncts, 115 conjunts are in the unsatisfiable core [2019-05-23 09:25:43,672 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:48,154 INFO L146 ILogger]: Checked inductivity of 12769 backedges. 0 proven. 12769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:48,154 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:48,155 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [115] total 115 [2019-05-23 09:25:48,155 INFO L146 ILogger]: Interpolant automaton has 116 states [2019-05-23 09:25:48,155 INFO L146 ILogger]: Constructing interpolant automaton starting with 116 interpolants. [2019-05-23 09:25:48,156 INFO L146 ILogger]: CoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2019-05-23 09:25:48,156 INFO L146 ILogger]: Start difference. First operand 233 states and 233 transitions. Second operand 116 states. [2019-05-23 09:25:48,521 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:48,521 INFO L146 ILogger]: Finished difference Result 236 states and 236 transitions. [2019-05-23 09:25:48,522 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2019-05-23 09:25:48,522 INFO L146 ILogger]: Start accepts. Automaton has 116 states. Word has length 232 [2019-05-23 09:25:48,522 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:48,523 INFO L146 ILogger]: With dead ends: 236 [2019-05-23 09:25:48,523 INFO L146 ILogger]: Without dead ends: 236 [2019-05-23 09:25:48,524 INFO L146 ILogger]: 0 DeclaredPredicates, 231 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=6670, Invalid=6670, Unknown=0, NotChecked=0, Total=13340 [2019-05-23 09:25:48,524 INFO L146 ILogger]: Start minimizeSevpa. Operand 236 states. [2019-05-23 09:25:48,525 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 236 to 235. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Start removeUnreachable. Operand 235 states. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 232 [2019-05-23 09:25:48,526 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Abstraction has 235 states and 235 transitions. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Interpolant automaton has 116 states. [2019-05-23 09:25:48,526 INFO L146 ILogger]: Start isEmpty. Operand 235 states and 235 transitions. [2019-05-23 09:25:48,527 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 235 [2019-05-23 09:25:48,527 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:48,527 INFO L146 ILogger]: trace histogram [114, 114, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:48,527 INFO L146 ILogger]: === Iteration 115 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:48,527 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:48,527 INFO L146 ILogger]: Analyzing trace with hash 1532362072, now seen corresponding path program 114 times [2019-05-23 09:25:48,528 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:48,542 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:48,544 INFO L146 ILogger]: Trace formula consists of 353 conjuncts, 116 conjunts are in the unsatisfiable core [2019-05-23 09:25:48,546 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:53,104 INFO L146 ILogger]: Checked inductivity of 12996 backedges. 0 proven. 12996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:53,105 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:53,105 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [116] total 116 [2019-05-23 09:25:53,105 INFO L146 ILogger]: Interpolant automaton has 117 states [2019-05-23 09:25:53,106 INFO L146 ILogger]: Constructing interpolant automaton starting with 117 interpolants. [2019-05-23 09:25:53,106 INFO L146 ILogger]: CoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2019-05-23 09:25:53,106 INFO L146 ILogger]: Start difference. First operand 235 states and 235 transitions. Second operand 117 states. [2019-05-23 09:25:53,470 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:53,471 INFO L146 ILogger]: Finished difference Result 238 states and 238 transitions. [2019-05-23 09:25:53,471 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2019-05-23 09:25:53,471 INFO L146 ILogger]: Start accepts. Automaton has 117 states. Word has length 234 [2019-05-23 09:25:53,471 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:53,472 INFO L146 ILogger]: With dead ends: 238 [2019-05-23 09:25:53,472 INFO L146 ILogger]: Without dead ends: 238 [2019-05-23 09:25:53,473 INFO L146 ILogger]: 0 DeclaredPredicates, 233 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=6786, Invalid=6786, Unknown=0, NotChecked=0, Total=13572 [2019-05-23 09:25:53,473 INFO L146 ILogger]: Start minimizeSevpa. Operand 238 states. [2019-05-23 09:25:53,474 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 238 to 237. [2019-05-23 09:25:53,474 INFO L146 ILogger]: Start removeUnreachable. Operand 237 states. [2019-05-23 09:25:53,474 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2019-05-23 09:25:53,475 INFO L146 ILogger]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 234 [2019-05-23 09:25:53,475 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:53,475 INFO L146 ILogger]: Abstraction has 237 states and 237 transitions. [2019-05-23 09:25:53,475 INFO L146 ILogger]: Interpolant automaton has 117 states. [2019-05-23 09:25:53,475 INFO L146 ILogger]: Start isEmpty. Operand 237 states and 237 transitions. [2019-05-23 09:25:53,476 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 237 [2019-05-23 09:25:53,476 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:53,476 INFO L146 ILogger]: trace histogram [115, 115, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:53,476 INFO L146 ILogger]: === Iteration 116 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:53,477 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:53,477 INFO L146 ILogger]: Analyzing trace with hash 970829239, now seen corresponding path program 115 times [2019-05-23 09:25:53,477 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:53,488 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:53,489 INFO L146 ILogger]: Trace formula consists of 356 conjuncts, 117 conjunts are in the unsatisfiable core [2019-05-23 09:25:53,491 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:25:58,251 INFO L146 ILogger]: Checked inductivity of 13225 backedges. 0 proven. 13225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:25:58,251 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:25:58,252 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [117] total 117 [2019-05-23 09:25:58,252 INFO L146 ILogger]: Interpolant automaton has 118 states [2019-05-23 09:25:58,252 INFO L146 ILogger]: Constructing interpolant automaton starting with 118 interpolants. [2019-05-23 09:25:58,253 INFO L146 ILogger]: CoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2019-05-23 09:25:58,253 INFO L146 ILogger]: Start difference. First operand 237 states and 237 transitions. Second operand 118 states. [2019-05-23 09:25:58,619 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:25:58,619 INFO L146 ILogger]: Finished difference Result 240 states and 240 transitions. [2019-05-23 09:25:58,619 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2019-05-23 09:25:58,619 INFO L146 ILogger]: Start accepts. Automaton has 118 states. Word has length 236 [2019-05-23 09:25:58,620 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:25:58,620 INFO L146 ILogger]: With dead ends: 240 [2019-05-23 09:25:58,620 INFO L146 ILogger]: Without dead ends: 240 [2019-05-23 09:25:58,621 INFO L146 ILogger]: 0 DeclaredPredicates, 235 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=6903, Invalid=6903, Unknown=0, NotChecked=0, Total=13806 [2019-05-23 09:25:58,621 INFO L146 ILogger]: Start minimizeSevpa. Operand 240 states. [2019-05-23 09:25:58,622 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 240 to 239. [2019-05-23 09:25:58,622 INFO L146 ILogger]: Start removeUnreachable. Operand 239 states. [2019-05-23 09:25:58,622 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2019-05-23 09:25:58,622 INFO L146 ILogger]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 236 [2019-05-23 09:25:58,622 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:25:58,622 INFO L146 ILogger]: Abstraction has 239 states and 239 transitions. [2019-05-23 09:25:58,623 INFO L146 ILogger]: Interpolant automaton has 118 states. [2019-05-23 09:25:58,623 INFO L146 ILogger]: Start isEmpty. Operand 239 states and 239 transitions. [2019-05-23 09:25:58,623 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 239 [2019-05-23 09:25:58,623 INFO L146 ILogger]: Found error trace [2019-05-23 09:25:58,623 INFO L146 ILogger]: trace histogram [116, 116, 1, 1, 1, 1, 1, 1] [2019-05-23 09:25:58,623 INFO L146 ILogger]: === Iteration 117 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:25:58,624 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:25:58,624 INFO L146 ILogger]: Analyzing trace with hash -1791311274, now seen corresponding path program 116 times [2019-05-23 09:25:58,624 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:25:58,635 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:25:58,637 INFO L146 ILogger]: Trace formula consists of 359 conjuncts, 118 conjunts are in the unsatisfiable core [2019-05-23 09:25:58,638 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:03,468 INFO L146 ILogger]: Checked inductivity of 13456 backedges. 0 proven. 13456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:03,468 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:03,468 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [118] total 118 [2019-05-23 09:26:03,468 INFO L146 ILogger]: Interpolant automaton has 119 states [2019-05-23 09:26:03,469 INFO L146 ILogger]: Constructing interpolant automaton starting with 119 interpolants. [2019-05-23 09:26:03,469 INFO L146 ILogger]: CoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2019-05-23 09:26:03,469 INFO L146 ILogger]: Start difference. First operand 239 states and 239 transitions. Second operand 119 states. [2019-05-23 09:26:03,850 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:03,850 INFO L146 ILogger]: Finished difference Result 242 states and 242 transitions. [2019-05-23 09:26:03,851 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-05-23 09:26:03,851 INFO L146 ILogger]: Start accepts. Automaton has 119 states. Word has length 238 [2019-05-23 09:26:03,851 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:03,852 INFO L146 ILogger]: With dead ends: 242 [2019-05-23 09:26:03,852 INFO L146 ILogger]: Without dead ends: 242 [2019-05-23 09:26:03,852 INFO L146 ILogger]: 0 DeclaredPredicates, 237 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=7021, Invalid=7021, Unknown=0, NotChecked=0, Total=14042 [2019-05-23 09:26:03,852 INFO L146 ILogger]: Start minimizeSevpa. Operand 242 states. [2019-05-23 09:26:03,853 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 242 to 241. [2019-05-23 09:26:03,853 INFO L146 ILogger]: Start removeUnreachable. Operand 241 states. [2019-05-23 09:26:03,854 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2019-05-23 09:26:03,854 INFO L146 ILogger]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 238 [2019-05-23 09:26:03,854 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:03,854 INFO L146 ILogger]: Abstraction has 241 states and 241 transitions. [2019-05-23 09:26:03,854 INFO L146 ILogger]: Interpolant automaton has 119 states. [2019-05-23 09:26:03,854 INFO L146 ILogger]: Start isEmpty. Operand 241 states and 241 transitions. [2019-05-23 09:26:03,855 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 241 [2019-05-23 09:26:03,855 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:03,855 INFO L146 ILogger]: trace histogram [117, 117, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:03,855 INFO L146 ILogger]: === Iteration 118 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:03,855 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:03,855 INFO L146 ILogger]: Analyzing trace with hash -1918555339, now seen corresponding path program 117 times [2019-05-23 09:26:03,856 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:03,868 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:03,870 INFO L146 ILogger]: Trace formula consists of 362 conjuncts, 119 conjunts are in the unsatisfiable core [2019-05-23 09:26:03,872 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:08,861 INFO L146 ILogger]: Checked inductivity of 13689 backedges. 0 proven. 13689 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:08,862 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:08,862 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [119] total 119 [2019-05-23 09:26:08,862 INFO L146 ILogger]: Interpolant automaton has 120 states [2019-05-23 09:26:08,863 INFO L146 ILogger]: Constructing interpolant automaton starting with 120 interpolants. [2019-05-23 09:26:08,863 INFO L146 ILogger]: CoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2019-05-23 09:26:08,863 INFO L146 ILogger]: Start difference. First operand 241 states and 241 transitions. Second operand 120 states. [2019-05-23 09:26:09,272 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:09,272 INFO L146 ILogger]: Finished difference Result 244 states and 244 transitions. [2019-05-23 09:26:09,273 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2019-05-23 09:26:09,273 INFO L146 ILogger]: Start accepts. Automaton has 120 states. Word has length 240 [2019-05-23 09:26:09,273 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:09,273 INFO L146 ILogger]: With dead ends: 244 [2019-05-23 09:26:09,273 INFO L146 ILogger]: Without dead ends: 244 [2019-05-23 09:26:09,274 INFO L146 ILogger]: 0 DeclaredPredicates, 239 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=7140, Invalid=7140, Unknown=0, NotChecked=0, Total=14280 [2019-05-23 09:26:09,274 INFO L146 ILogger]: Start minimizeSevpa. Operand 244 states. [2019-05-23 09:26:09,275 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 244 to 243. [2019-05-23 09:26:09,275 INFO L146 ILogger]: Start removeUnreachable. Operand 243 states. [2019-05-23 09:26:09,275 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 243 states to 243 states and 243 transitions. [2019-05-23 09:26:09,275 INFO L146 ILogger]: Start accepts. Automaton has 243 states and 243 transitions. Word has length 240 [2019-05-23 09:26:09,276 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:09,276 INFO L146 ILogger]: Abstraction has 243 states and 243 transitions. [2019-05-23 09:26:09,276 INFO L146 ILogger]: Interpolant automaton has 120 states. [2019-05-23 09:26:09,276 INFO L146 ILogger]: Start isEmpty. Operand 243 states and 243 transitions. [2019-05-23 09:26:09,277 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 243 [2019-05-23 09:26:09,277 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:09,277 INFO L146 ILogger]: trace histogram [118, 118, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:09,277 INFO L146 ILogger]: === Iteration 119 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:09,277 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:09,277 INFO L146 ILogger]: Analyzing trace with hash 353949780, now seen corresponding path program 118 times [2019-05-23 09:26:09,278 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:09,289 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:09,291 INFO L146 ILogger]: Trace formula consists of 365 conjuncts, 120 conjunts are in the unsatisfiable core [2019-05-23 09:26:09,292 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:14,145 INFO L146 ILogger]: Checked inductivity of 13924 backedges. 0 proven. 13924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:14,145 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:14,145 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [120] total 120 [2019-05-23 09:26:14,145 INFO L146 ILogger]: Interpolant automaton has 121 states [2019-05-23 09:26:14,146 INFO L146 ILogger]: Constructing interpolant automaton starting with 121 interpolants. [2019-05-23 09:26:14,146 INFO L146 ILogger]: CoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2019-05-23 09:26:14,146 INFO L146 ILogger]: Start difference. First operand 243 states and 243 transitions. Second operand 121 states. [2019-05-23 09:26:14,554 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:14,554 INFO L146 ILogger]: Finished difference Result 246 states and 246 transitions. [2019-05-23 09:26:14,554 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-05-23 09:26:14,554 INFO L146 ILogger]: Start accepts. Automaton has 121 states. Word has length 242 [2019-05-23 09:26:14,555 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:14,555 INFO L146 ILogger]: With dead ends: 246 [2019-05-23 09:26:14,555 INFO L146 ILogger]: Without dead ends: 246 [2019-05-23 09:26:14,556 INFO L146 ILogger]: 0 DeclaredPredicates, 241 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=7260, Invalid=7260, Unknown=0, NotChecked=0, Total=14520 [2019-05-23 09:26:14,556 INFO L146 ILogger]: Start minimizeSevpa. Operand 246 states. [2019-05-23 09:26:14,558 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 246 to 245. [2019-05-23 09:26:14,558 INFO L146 ILogger]: Start removeUnreachable. Operand 245 states. [2019-05-23 09:26:14,558 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 245 states to 245 states and 245 transitions. [2019-05-23 09:26:14,558 INFO L146 ILogger]: Start accepts. Automaton has 245 states and 245 transitions. Word has length 242 [2019-05-23 09:26:14,559 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:14,559 INFO L146 ILogger]: Abstraction has 245 states and 245 transitions. [2019-05-23 09:26:14,559 INFO L146 ILogger]: Interpolant automaton has 121 states. [2019-05-23 09:26:14,559 INFO L146 ILogger]: Start isEmpty. Operand 245 states and 245 transitions. [2019-05-23 09:26:14,560 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 245 [2019-05-23 09:26:14,560 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:14,560 INFO L146 ILogger]: trace histogram [119, 119, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:14,560 INFO L146 ILogger]: === Iteration 120 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:14,560 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:14,560 INFO L146 ILogger]: Analyzing trace with hash -1906984525, now seen corresponding path program 119 times [2019-05-23 09:26:14,561 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:14,572 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:14,574 INFO L146 ILogger]: Trace formula consists of 368 conjuncts, 121 conjunts are in the unsatisfiable core [2019-05-23 09:26:14,575 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:19,633 INFO L146 ILogger]: Checked inductivity of 14161 backedges. 0 proven. 14161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:19,633 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:19,633 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [121] total 121 [2019-05-23 09:26:19,633 INFO L146 ILogger]: Interpolant automaton has 122 states [2019-05-23 09:26:19,634 INFO L146 ILogger]: Constructing interpolant automaton starting with 122 interpolants. [2019-05-23 09:26:19,634 INFO L146 ILogger]: CoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2019-05-23 09:26:19,635 INFO L146 ILogger]: Start difference. First operand 245 states and 245 transitions. Second operand 122 states. [2019-05-23 09:26:20,060 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:20,060 INFO L146 ILogger]: Finished difference Result 248 states and 248 transitions. [2019-05-23 09:26:20,060 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2019-05-23 09:26:20,060 INFO L146 ILogger]: Start accepts. Automaton has 122 states. Word has length 244 [2019-05-23 09:26:20,061 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:20,061 INFO L146 ILogger]: With dead ends: 248 [2019-05-23 09:26:20,061 INFO L146 ILogger]: Without dead ends: 248 [2019-05-23 09:26:20,062 INFO L146 ILogger]: 0 DeclaredPredicates, 243 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=7381, Invalid=7381, Unknown=0, NotChecked=0, Total=14762 [2019-05-23 09:26:20,062 INFO L146 ILogger]: Start minimizeSevpa. Operand 248 states. [2019-05-23 09:26:20,063 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 248 to 247. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Start removeUnreachable. Operand 247 states. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 244 [2019-05-23 09:26:20,064 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Abstraction has 247 states and 247 transitions. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Interpolant automaton has 122 states. [2019-05-23 09:26:20,064 INFO L146 ILogger]: Start isEmpty. Operand 247 states and 247 transitions. [2019-05-23 09:26:20,065 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 247 [2019-05-23 09:26:20,065 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:20,065 INFO L146 ILogger]: trace histogram [120, 120, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:20,065 INFO L146 ILogger]: === Iteration 121 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:20,065 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:20,066 INFO L146 ILogger]: Analyzing trace with hash -1411399854, now seen corresponding path program 120 times [2019-05-23 09:26:20,066 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:20,077 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:20,079 INFO L146 ILogger]: Trace formula consists of 371 conjuncts, 122 conjunts are in the unsatisfiable core [2019-05-23 09:26:20,080 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:25,382 INFO L146 ILogger]: Checked inductivity of 14400 backedges. 0 proven. 14400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:25,383 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:25,383 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [122] total 122 [2019-05-23 09:26:25,383 INFO L146 ILogger]: Interpolant automaton has 123 states [2019-05-23 09:26:25,384 INFO L146 ILogger]: Constructing interpolant automaton starting with 123 interpolants. [2019-05-23 09:26:25,384 INFO L146 ILogger]: CoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2019-05-23 09:26:25,384 INFO L146 ILogger]: Start difference. First operand 247 states and 247 transitions. Second operand 123 states. [2019-05-23 09:26:25,807 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:25,808 INFO L146 ILogger]: Finished difference Result 250 states and 250 transitions. [2019-05-23 09:26:25,808 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2019-05-23 09:26:25,808 INFO L146 ILogger]: Start accepts. Automaton has 123 states. Word has length 246 [2019-05-23 09:26:25,808 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:25,809 INFO L146 ILogger]: With dead ends: 250 [2019-05-23 09:26:25,809 INFO L146 ILogger]: Without dead ends: 250 [2019-05-23 09:26:25,810 INFO L146 ILogger]: 0 DeclaredPredicates, 245 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=7503, Invalid=7503, Unknown=0, NotChecked=0, Total=15006 [2019-05-23 09:26:25,810 INFO L146 ILogger]: Start minimizeSevpa. Operand 250 states. [2019-05-23 09:26:25,812 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 250 to 249. [2019-05-23 09:26:25,812 INFO L146 ILogger]: Start removeUnreachable. Operand 249 states. [2019-05-23 09:26:25,812 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 249 states to 249 states and 249 transitions. [2019-05-23 09:26:25,813 INFO L146 ILogger]: Start accepts. Automaton has 249 states and 249 transitions. Word has length 246 [2019-05-23 09:26:25,813 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:25,813 INFO L146 ILogger]: Abstraction has 249 states and 249 transitions. [2019-05-23 09:26:25,813 INFO L146 ILogger]: Interpolant automaton has 123 states. [2019-05-23 09:26:25,813 INFO L146 ILogger]: Start isEmpty. Operand 249 states and 249 transitions. [2019-05-23 09:26:25,814 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 249 [2019-05-23 09:26:25,814 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:25,814 INFO L146 ILogger]: trace histogram [121, 121, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:25,814 INFO L146 ILogger]: === Iteration 122 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:25,815 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:25,815 INFO L146 ILogger]: Analyzing trace with hash -1895900879, now seen corresponding path program 121 times [2019-05-23 09:26:25,815 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:25,835 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:25,837 INFO L146 ILogger]: Trace formula consists of 374 conjuncts, 123 conjunts are in the unsatisfiable core [2019-05-23 09:26:25,838 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:31,210 INFO L146 ILogger]: Checked inductivity of 14641 backedges. 0 proven. 14641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:31,211 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:31,211 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [123] total 123 [2019-05-23 09:26:31,211 INFO L146 ILogger]: Interpolant automaton has 124 states [2019-05-23 09:26:31,212 INFO L146 ILogger]: Constructing interpolant automaton starting with 124 interpolants. [2019-05-23 09:26:31,212 INFO L146 ILogger]: CoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2019-05-23 09:26:31,212 INFO L146 ILogger]: Start difference. First operand 249 states and 249 transitions. Second operand 124 states. [2019-05-23 09:26:31,624 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:31,624 INFO L146 ILogger]: Finished difference Result 252 states and 252 transitions. [2019-05-23 09:26:31,624 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2019-05-23 09:26:31,624 INFO L146 ILogger]: Start accepts. Automaton has 124 states. Word has length 248 [2019-05-23 09:26:31,624 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:31,625 INFO L146 ILogger]: With dead ends: 252 [2019-05-23 09:26:31,625 INFO L146 ILogger]: Without dead ends: 252 [2019-05-23 09:26:31,625 INFO L146 ILogger]: 0 DeclaredPredicates, 247 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=7626, Invalid=7626, Unknown=0, NotChecked=0, Total=15252 [2019-05-23 09:26:31,626 INFO L146 ILogger]: Start minimizeSevpa. Operand 252 states. [2019-05-23 09:26:31,627 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 252 to 251. [2019-05-23 09:26:31,627 INFO L146 ILogger]: Start removeUnreachable. Operand 251 states. [2019-05-23 09:26:31,627 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2019-05-23 09:26:31,628 INFO L146 ILogger]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 248 [2019-05-23 09:26:31,628 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:31,628 INFO L146 ILogger]: Abstraction has 251 states and 251 transitions. [2019-05-23 09:26:31,628 INFO L146 ILogger]: Interpolant automaton has 124 states. [2019-05-23 09:26:31,628 INFO L146 ILogger]: Start isEmpty. Operand 251 states and 251 transitions. [2019-05-23 09:26:31,629 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 251 [2019-05-23 09:26:31,629 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:31,629 INFO L146 ILogger]: trace histogram [122, 122, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:31,629 INFO L146 ILogger]: === Iteration 123 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:31,629 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:31,630 INFO L146 ILogger]: Analyzing trace with hash 650049360, now seen corresponding path program 122 times [2019-05-23 09:26:31,630 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:31,641 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:31,643 INFO L146 ILogger]: Trace formula consists of 377 conjuncts, 124 conjunts are in the unsatisfiable core [2019-05-23 09:26:31,644 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:37,204 INFO L146 ILogger]: Checked inductivity of 14884 backedges. 0 proven. 14884 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:37,204 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:37,205 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [124] total 124 [2019-05-23 09:26:37,205 INFO L146 ILogger]: Interpolant automaton has 125 states [2019-05-23 09:26:37,205 INFO L146 ILogger]: Constructing interpolant automaton starting with 125 interpolants. [2019-05-23 09:26:37,206 INFO L146 ILogger]: CoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2019-05-23 09:26:37,206 INFO L146 ILogger]: Start difference. First operand 251 states and 251 transitions. Second operand 125 states. [2019-05-23 09:26:37,642 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:37,643 INFO L146 ILogger]: Finished difference Result 254 states and 254 transitions. [2019-05-23 09:26:37,643 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2019-05-23 09:26:37,643 INFO L146 ILogger]: Start accepts. Automaton has 125 states. Word has length 250 [2019-05-23 09:26:37,643 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:37,644 INFO L146 ILogger]: With dead ends: 254 [2019-05-23 09:26:37,644 INFO L146 ILogger]: Without dead ends: 254 [2019-05-23 09:26:37,645 INFO L146 ILogger]: 0 DeclaredPredicates, 249 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=7750, Invalid=7750, Unknown=0, NotChecked=0, Total=15500 [2019-05-23 09:26:37,645 INFO L146 ILogger]: Start minimizeSevpa. Operand 254 states. [2019-05-23 09:26:37,646 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 254 to 253. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Start removeUnreachable. Operand 253 states. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 250 [2019-05-23 09:26:37,647 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Abstraction has 253 states and 253 transitions. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Interpolant automaton has 125 states. [2019-05-23 09:26:37,647 INFO L146 ILogger]: Start isEmpty. Operand 253 states and 253 transitions. [2019-05-23 09:26:37,648 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 253 [2019-05-23 09:26:37,648 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:37,648 INFO L146 ILogger]: trace histogram [123, 123, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:37,648 INFO L146 ILogger]: === Iteration 124 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:37,648 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:37,649 INFO L146 ILogger]: Analyzing trace with hash -823129681, now seen corresponding path program 123 times [2019-05-23 09:26:37,649 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:37,661 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:37,663 INFO L146 ILogger]: Trace formula consists of 380 conjuncts, 125 conjunts are in the unsatisfiable core [2019-05-23 09:26:37,664 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:43,088 INFO L146 ILogger]: Checked inductivity of 15129 backedges. 0 proven. 15129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:43,089 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:43,089 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [125] total 125 [2019-05-23 09:26:43,089 INFO L146 ILogger]: Interpolant automaton has 126 states [2019-05-23 09:26:43,090 INFO L146 ILogger]: Constructing interpolant automaton starting with 126 interpolants. [2019-05-23 09:26:43,090 INFO L146 ILogger]: CoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2019-05-23 09:26:43,090 INFO L146 ILogger]: Start difference. First operand 253 states and 253 transitions. Second operand 126 states. [2019-05-23 09:26:43,513 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:43,513 INFO L146 ILogger]: Finished difference Result 256 states and 256 transitions. [2019-05-23 09:26:43,513 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2019-05-23 09:26:43,513 INFO L146 ILogger]: Start accepts. Automaton has 126 states. Word has length 252 [2019-05-23 09:26:43,514 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:43,514 INFO L146 ILogger]: With dead ends: 256 [2019-05-23 09:26:43,514 INFO L146 ILogger]: Without dead ends: 256 [2019-05-23 09:26:43,515 INFO L146 ILogger]: 0 DeclaredPredicates, 251 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=7875, Invalid=7875, Unknown=0, NotChecked=0, Total=15750 [2019-05-23 09:26:43,515 INFO L146 ILogger]: Start minimizeSevpa. Operand 256 states. [2019-05-23 09:26:43,516 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 256 to 255. [2019-05-23 09:26:43,516 INFO L146 ILogger]: Start removeUnreachable. Operand 255 states. [2019-05-23 09:26:43,517 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2019-05-23 09:26:43,517 INFO L146 ILogger]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 252 [2019-05-23 09:26:43,517 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:43,517 INFO L146 ILogger]: Abstraction has 255 states and 255 transitions. [2019-05-23 09:26:43,517 INFO L146 ILogger]: Interpolant automaton has 126 states. [2019-05-23 09:26:43,517 INFO L146 ILogger]: Start isEmpty. Operand 255 states and 255 transitions. [2019-05-23 09:26:43,518 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 255 [2019-05-23 09:26:43,518 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:43,518 INFO L146 ILogger]: trace histogram [124, 124, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:43,518 INFO L146 ILogger]: === Iteration 125 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:43,518 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:43,519 INFO L146 ILogger]: Analyzing trace with hash 791019598, now seen corresponding path program 124 times [2019-05-23 09:26:43,519 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:43,531 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:43,533 INFO L146 ILogger]: Trace formula consists of 383 conjuncts, 126 conjunts are in the unsatisfiable core [2019-05-23 09:26:43,534 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:48,973 INFO L146 ILogger]: Checked inductivity of 15376 backedges. 0 proven. 15376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:48,974 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:48,974 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [126] total 126 [2019-05-23 09:26:48,974 INFO L146 ILogger]: Interpolant automaton has 127 states [2019-05-23 09:26:48,975 INFO L146 ILogger]: Constructing interpolant automaton starting with 127 interpolants. [2019-05-23 09:26:48,975 INFO L146 ILogger]: CoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2019-05-23 09:26:48,975 INFO L146 ILogger]: Start difference. First operand 255 states and 255 transitions. Second operand 127 states. [2019-05-23 09:26:49,389 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:49,389 INFO L146 ILogger]: Finished difference Result 258 states and 258 transitions. [2019-05-23 09:26:49,389 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2019-05-23 09:26:49,390 INFO L146 ILogger]: Start accepts. Automaton has 127 states. Word has length 254 [2019-05-23 09:26:49,390 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:49,391 INFO L146 ILogger]: With dead ends: 258 [2019-05-23 09:26:49,391 INFO L146 ILogger]: Without dead ends: 258 [2019-05-23 09:26:49,391 INFO L146 ILogger]: 0 DeclaredPredicates, 253 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=8001, Invalid=8001, Unknown=0, NotChecked=0, Total=16002 [2019-05-23 09:26:49,392 INFO L146 ILogger]: Start minimizeSevpa. Operand 258 states. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 258 to 257. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Start removeUnreachable. Operand 257 states. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 257 states to 257 states and 257 transitions. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Start accepts. Automaton has 257 states and 257 transitions. Word has length 254 [2019-05-23 09:26:49,394 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Abstraction has 257 states and 257 transitions. [2019-05-23 09:26:49,394 INFO L146 ILogger]: Interpolant automaton has 127 states. [2019-05-23 09:26:49,395 INFO L146 ILogger]: Start isEmpty. Operand 257 states and 257 transitions. [2019-05-23 09:26:49,395 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 257 [2019-05-23 09:26:49,395 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:49,395 INFO L146 ILogger]: trace histogram [125, 125, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:49,396 INFO L146 ILogger]: === Iteration 126 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:49,396 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:49,396 INFO L146 ILogger]: Analyzing trace with hash 1505282861, now seen corresponding path program 125 times [2019-05-23 09:26:49,396 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:49,409 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:49,411 INFO L146 ILogger]: Trace formula consists of 386 conjuncts, 127 conjunts are in the unsatisfiable core [2019-05-23 09:26:49,412 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:26:54,972 INFO L146 ILogger]: Checked inductivity of 15625 backedges. 0 proven. 15625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:26:54,973 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:26:54,973 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [127] total 127 [2019-05-23 09:26:54,973 INFO L146 ILogger]: Interpolant automaton has 128 states [2019-05-23 09:26:54,974 INFO L146 ILogger]: Constructing interpolant automaton starting with 128 interpolants. [2019-05-23 09:26:54,974 INFO L146 ILogger]: CoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2019-05-23 09:26:54,975 INFO L146 ILogger]: Start difference. First operand 257 states and 257 transitions. Second operand 128 states. [2019-05-23 09:26:55,421 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:26:55,422 INFO L146 ILogger]: Finished difference Result 260 states and 260 transitions. [2019-05-23 09:26:55,422 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2019-05-23 09:26:55,422 INFO L146 ILogger]: Start accepts. Automaton has 128 states. Word has length 256 [2019-05-23 09:26:55,423 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:26:55,423 INFO L146 ILogger]: With dead ends: 260 [2019-05-23 09:26:55,423 INFO L146 ILogger]: Without dead ends: 260 [2019-05-23 09:26:55,424 INFO L146 ILogger]: 0 DeclaredPredicates, 255 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=8128, Invalid=8128, Unknown=0, NotChecked=0, Total=16256 [2019-05-23 09:26:55,424 INFO L146 ILogger]: Start minimizeSevpa. Operand 260 states. [2019-05-23 09:26:55,426 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 260 to 259. [2019-05-23 09:26:55,426 INFO L146 ILogger]: Start removeUnreachable. Operand 259 states. [2019-05-23 09:26:55,427 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 259 states to 259 states and 259 transitions. [2019-05-23 09:26:55,427 INFO L146 ILogger]: Start accepts. Automaton has 259 states and 259 transitions. Word has length 256 [2019-05-23 09:26:55,427 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:26:55,427 INFO L146 ILogger]: Abstraction has 259 states and 259 transitions. [2019-05-23 09:26:55,427 INFO L146 ILogger]: Interpolant automaton has 128 states. [2019-05-23 09:26:55,427 INFO L146 ILogger]: Start isEmpty. Operand 259 states and 259 transitions. [2019-05-23 09:26:55,428 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 259 [2019-05-23 09:26:55,428 INFO L146 ILogger]: Found error trace [2019-05-23 09:26:55,429 INFO L146 ILogger]: trace histogram [126, 126, 1, 1, 1, 1, 1, 1] [2019-05-23 09:26:55,429 INFO L146 ILogger]: === Iteration 127 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:26:55,429 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:26:55,429 INFO L146 ILogger]: Analyzing trace with hash 717511244, now seen corresponding path program 126 times [2019-05-23 09:26:55,430 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:26:55,443 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:26:55,446 INFO L146 ILogger]: Trace formula consists of 389 conjuncts, 128 conjunts are in the unsatisfiable core [2019-05-23 09:26:55,447 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:01,073 INFO L146 ILogger]: Checked inductivity of 15876 backedges. 0 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:01,073 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:01,073 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [128] total 128 [2019-05-23 09:27:01,074 INFO L146 ILogger]: Interpolant automaton has 129 states [2019-05-23 09:27:01,075 INFO L146 ILogger]: Constructing interpolant automaton starting with 129 interpolants. [2019-05-23 09:27:01,075 INFO L146 ILogger]: CoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2019-05-23 09:27:01,075 INFO L146 ILogger]: Start difference. First operand 259 states and 259 transitions. Second operand 129 states. [2019-05-23 09:27:01,516 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:01,516 INFO L146 ILogger]: Finished difference Result 262 states and 262 transitions. [2019-05-23 09:27:01,516 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2019-05-23 09:27:01,516 INFO L146 ILogger]: Start accepts. Automaton has 129 states. Word has length 258 [2019-05-23 09:27:01,517 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:01,517 INFO L146 ILogger]: With dead ends: 262 [2019-05-23 09:27:01,517 INFO L146 ILogger]: Without dead ends: 262 [2019-05-23 09:27:01,518 INFO L146 ILogger]: 0 DeclaredPredicates, 257 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=8256, Invalid=8256, Unknown=0, NotChecked=0, Total=16512 [2019-05-23 09:27:01,519 INFO L146 ILogger]: Start minimizeSevpa. Operand 262 states. [2019-05-23 09:27:01,520 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 262 to 261. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Start removeUnreachable. Operand 261 states. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 261 states to 261 states and 261 transitions. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Start accepts. Automaton has 261 states and 261 transitions. Word has length 258 [2019-05-23 09:27:01,521 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Abstraction has 261 states and 261 transitions. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Interpolant automaton has 129 states. [2019-05-23 09:27:01,521 INFO L146 ILogger]: Start isEmpty. Operand 261 states and 261 transitions. [2019-05-23 09:27:01,522 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 261 [2019-05-23 09:27:01,522 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:01,522 INFO L146 ILogger]: trace histogram [127, 127, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:01,523 INFO L146 ILogger]: === Iteration 128 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:01,523 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:01,523 INFO L146 ILogger]: Analyzing trace with hash -416768597, now seen corresponding path program 127 times [2019-05-23 09:27:01,524 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:01,538 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:01,540 INFO L146 ILogger]: Trace formula consists of 392 conjuncts, 129 conjunts are in the unsatisfiable core [2019-05-23 09:27:01,542 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:07,288 INFO L146 ILogger]: Checked inductivity of 16129 backedges. 0 proven. 16129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:07,289 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:07,289 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [129] total 129 [2019-05-23 09:27:07,290 INFO L146 ILogger]: Interpolant automaton has 130 states [2019-05-23 09:27:07,291 INFO L146 ILogger]: Constructing interpolant automaton starting with 130 interpolants. [2019-05-23 09:27:07,291 INFO L146 ILogger]: CoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2019-05-23 09:27:07,291 INFO L146 ILogger]: Start difference. First operand 261 states and 261 transitions. Second operand 130 states. [2019-05-23 09:27:07,807 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:07,808 INFO L146 ILogger]: Finished difference Result 264 states and 264 transitions. [2019-05-23 09:27:07,819 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2019-05-23 09:27:07,819 INFO L146 ILogger]: Start accepts. Automaton has 130 states. Word has length 260 [2019-05-23 09:27:07,819 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:07,820 INFO L146 ILogger]: With dead ends: 264 [2019-05-23 09:27:07,820 INFO L146 ILogger]: Without dead ends: 264 [2019-05-23 09:27:07,821 INFO L146 ILogger]: 0 DeclaredPredicates, 259 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=8385, Invalid=8385, Unknown=0, NotChecked=0, Total=16770 [2019-05-23 09:27:07,821 INFO L146 ILogger]: Start minimizeSevpa. Operand 264 states. [2019-05-23 09:27:07,824 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 264 to 263. [2019-05-23 09:27:07,825 INFO L146 ILogger]: Start removeUnreachable. Operand 263 states. [2019-05-23 09:27:07,825 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 263 states to 263 states and 263 transitions. [2019-05-23 09:27:07,825 INFO L146 ILogger]: Start accepts. Automaton has 263 states and 263 transitions. Word has length 260 [2019-05-23 09:27:07,825 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:07,825 INFO L146 ILogger]: Abstraction has 263 states and 263 transitions. [2019-05-23 09:27:07,825 INFO L146 ILogger]: Interpolant automaton has 130 states. [2019-05-23 09:27:07,826 INFO L146 ILogger]: Start isEmpty. Operand 263 states and 263 transitions. [2019-05-23 09:27:07,826 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 263 [2019-05-23 09:27:07,826 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:07,826 INFO L146 ILogger]: trace histogram [128, 128, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:07,827 INFO L146 ILogger]: === Iteration 129 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:07,827 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:07,827 INFO L146 ILogger]: Analyzing trace with hash 461997386, now seen corresponding path program 128 times [2019-05-23 09:27:07,827 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:07,839 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:07,842 INFO L146 ILogger]: Trace formula consists of 395 conjuncts, 130 conjunts are in the unsatisfiable core [2019-05-23 09:27:07,843 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:13,420 INFO L146 ILogger]: Checked inductivity of 16384 backedges. 0 proven. 16384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:13,421 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:13,421 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [130] total 130 [2019-05-23 09:27:13,421 INFO L146 ILogger]: Interpolant automaton has 131 states [2019-05-23 09:27:13,422 INFO L146 ILogger]: Constructing interpolant automaton starting with 131 interpolants. [2019-05-23 09:27:13,423 INFO L146 ILogger]: CoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2019-05-23 09:27:13,423 INFO L146 ILogger]: Start difference. First operand 263 states and 263 transitions. Second operand 131 states. [2019-05-23 09:27:13,883 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:13,883 INFO L146 ILogger]: Finished difference Result 266 states and 266 transitions. [2019-05-23 09:27:13,884 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2019-05-23 09:27:13,884 INFO L146 ILogger]: Start accepts. Automaton has 131 states. Word has length 262 [2019-05-23 09:27:13,884 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:13,885 INFO L146 ILogger]: With dead ends: 266 [2019-05-23 09:27:13,885 INFO L146 ILogger]: Without dead ends: 266 [2019-05-23 09:27:13,886 INFO L146 ILogger]: 0 DeclaredPredicates, 261 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=8515, Invalid=8515, Unknown=0, NotChecked=0, Total=17030 [2019-05-23 09:27:13,886 INFO L146 ILogger]: Start minimizeSevpa. Operand 266 states. [2019-05-23 09:27:13,888 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 266 to 265. [2019-05-23 09:27:13,889 INFO L146 ILogger]: Start removeUnreachable. Operand 265 states. [2019-05-23 09:27:13,889 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2019-05-23 09:27:13,889 INFO L146 ILogger]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 262 [2019-05-23 09:27:13,889 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:13,889 INFO L146 ILogger]: Abstraction has 265 states and 265 transitions. [2019-05-23 09:27:13,889 INFO L146 ILogger]: Interpolant automaton has 131 states. [2019-05-23 09:27:13,890 INFO L146 ILogger]: Start isEmpty. Operand 265 states and 265 transitions. [2019-05-23 09:27:13,890 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 265 [2019-05-23 09:27:13,890 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:13,890 INFO L146 ILogger]: trace histogram [129, 129, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:13,890 INFO L146 ILogger]: === Iteration 130 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:13,891 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:13,891 INFO L146 ILogger]: Analyzing trace with hash -1152450263, now seen corresponding path program 129 times [2019-05-23 09:27:13,891 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:13,904 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:13,906 INFO L146 ILogger]: Trace formula consists of 398 conjuncts, 131 conjunts are in the unsatisfiable core [2019-05-23 09:27:13,908 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:19,925 INFO L146 ILogger]: Checked inductivity of 16641 backedges. 0 proven. 16641 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:19,925 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:19,925 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [131] total 131 [2019-05-23 09:27:19,925 INFO L146 ILogger]: Interpolant automaton has 132 states [2019-05-23 09:27:19,926 INFO L146 ILogger]: Constructing interpolant automaton starting with 132 interpolants. [2019-05-23 09:27:19,926 INFO L146 ILogger]: CoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2019-05-23 09:27:19,927 INFO L146 ILogger]: Start difference. First operand 265 states and 265 transitions. Second operand 132 states. [2019-05-23 09:27:20,380 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:20,380 INFO L146 ILogger]: Finished difference Result 268 states and 268 transitions. [2019-05-23 09:27:20,380 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2019-05-23 09:27:20,381 INFO L146 ILogger]: Start accepts. Automaton has 132 states. Word has length 264 [2019-05-23 09:27:20,381 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:20,381 INFO L146 ILogger]: With dead ends: 268 [2019-05-23 09:27:20,381 INFO L146 ILogger]: Without dead ends: 268 [2019-05-23 09:27:20,382 INFO L146 ILogger]: 0 DeclaredPredicates, 263 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=8646, Invalid=8646, Unknown=0, NotChecked=0, Total=17292 [2019-05-23 09:27:20,382 INFO L146 ILogger]: Start minimizeSevpa. Operand 268 states. [2019-05-23 09:27:20,383 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 268 to 267. [2019-05-23 09:27:20,384 INFO L146 ILogger]: Start removeUnreachable. Operand 267 states. [2019-05-23 09:27:20,384 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 267 states to 267 states and 267 transitions. [2019-05-23 09:27:20,384 INFO L146 ILogger]: Start accepts. Automaton has 267 states and 267 transitions. Word has length 264 [2019-05-23 09:27:20,384 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:20,384 INFO L146 ILogger]: Abstraction has 267 states and 267 transitions. [2019-05-23 09:27:20,384 INFO L146 ILogger]: Interpolant automaton has 132 states. [2019-05-23 09:27:20,385 INFO L146 ILogger]: Start isEmpty. Operand 267 states and 267 transitions. [2019-05-23 09:27:20,385 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 267 [2019-05-23 09:27:20,385 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:20,385 INFO L146 ILogger]: trace histogram [130, 130, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:20,385 INFO L146 ILogger]: === Iteration 131 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:20,386 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:20,386 INFO L146 ILogger]: Analyzing trace with hash 2141520200, now seen corresponding path program 130 times [2019-05-23 09:27:20,386 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:20,398 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:20,400 INFO L146 ILogger]: Trace formula consists of 401 conjuncts, 132 conjunts are in the unsatisfiable core [2019-05-23 09:27:20,401 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:26,496 INFO L146 ILogger]: Checked inductivity of 16900 backedges. 0 proven. 16900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:26,496 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:26,496 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [132] total 132 [2019-05-23 09:27:26,497 INFO L146 ILogger]: Interpolant automaton has 133 states [2019-05-23 09:27:26,497 INFO L146 ILogger]: Constructing interpolant automaton starting with 133 interpolants. [2019-05-23 09:27:26,498 INFO L146 ILogger]: CoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2019-05-23 09:27:26,498 INFO L146 ILogger]: Start difference. First operand 267 states and 267 transitions. Second operand 133 states. [2019-05-23 09:27:26,970 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:26,971 INFO L146 ILogger]: Finished difference Result 270 states and 270 transitions. [2019-05-23 09:27:26,971 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2019-05-23 09:27:26,971 INFO L146 ILogger]: Start accepts. Automaton has 133 states. Word has length 266 [2019-05-23 09:27:26,971 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:26,972 INFO L146 ILogger]: With dead ends: 270 [2019-05-23 09:27:26,972 INFO L146 ILogger]: Without dead ends: 270 [2019-05-23 09:27:26,972 INFO L146 ILogger]: 0 DeclaredPredicates, 265 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8778, Invalid=8778, Unknown=0, NotChecked=0, Total=17556 [2019-05-23 09:27:26,972 INFO L146 ILogger]: Start minimizeSevpa. Operand 270 states. [2019-05-23 09:27:26,974 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 270 to 269. [2019-05-23 09:27:26,974 INFO L146 ILogger]: Start removeUnreachable. Operand 269 states. [2019-05-23 09:27:26,975 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 269 states to 269 states and 269 transitions. [2019-05-23 09:27:26,975 INFO L146 ILogger]: Start accepts. Automaton has 269 states and 269 transitions. Word has length 266 [2019-05-23 09:27:26,975 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:26,975 INFO L146 ILogger]: Abstraction has 269 states and 269 transitions. [2019-05-23 09:27:26,975 INFO L146 ILogger]: Interpolant automaton has 133 states. [2019-05-23 09:27:26,975 INFO L146 ILogger]: Start isEmpty. Operand 269 states and 269 transitions. [2019-05-23 09:27:26,976 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 269 [2019-05-23 09:27:26,976 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:26,976 INFO L146 ILogger]: trace histogram [131, 131, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:26,976 INFO L146 ILogger]: === Iteration 132 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:26,976 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:26,976 INFO L146 ILogger]: Analyzing trace with hash -2038729305, now seen corresponding path program 131 times [2019-05-23 09:27:26,977 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:26,989 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:26,992 INFO L146 ILogger]: Trace formula consists of 404 conjuncts, 133 conjunts are in the unsatisfiable core [2019-05-23 09:27:26,993 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:33,065 INFO L146 ILogger]: Checked inductivity of 17161 backedges. 0 proven. 17161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:33,065 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:33,065 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [133] total 133 [2019-05-23 09:27:33,066 INFO L146 ILogger]: Interpolant automaton has 134 states [2019-05-23 09:27:33,067 INFO L146 ILogger]: Constructing interpolant automaton starting with 134 interpolants. [2019-05-23 09:27:33,067 INFO L146 ILogger]: CoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2019-05-23 09:27:33,067 INFO L146 ILogger]: Start difference. First operand 269 states and 269 transitions. Second operand 134 states. [2019-05-23 09:27:33,578 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:33,578 INFO L146 ILogger]: Finished difference Result 272 states and 272 transitions. [2019-05-23 09:27:33,579 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2019-05-23 09:27:33,579 INFO L146 ILogger]: Start accepts. Automaton has 134 states. Word has length 268 [2019-05-23 09:27:33,579 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:33,579 INFO L146 ILogger]: With dead ends: 272 [2019-05-23 09:27:33,579 INFO L146 ILogger]: Without dead ends: 272 [2019-05-23 09:27:33,580 INFO L146 ILogger]: 0 DeclaredPredicates, 267 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=8911, Invalid=8911, Unknown=0, NotChecked=0, Total=17822 [2019-05-23 09:27:33,580 INFO L146 ILogger]: Start minimizeSevpa. Operand 272 states. [2019-05-23 09:27:33,581 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 272 to 271. [2019-05-23 09:27:33,581 INFO L146 ILogger]: Start removeUnreachable. Operand 271 states. [2019-05-23 09:27:33,582 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2019-05-23 09:27:33,582 INFO L146 ILogger]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 268 [2019-05-23 09:27:33,582 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:33,582 INFO L146 ILogger]: Abstraction has 271 states and 271 transitions. [2019-05-23 09:27:33,582 INFO L146 ILogger]: Interpolant automaton has 134 states. [2019-05-23 09:27:33,582 INFO L146 ILogger]: Start isEmpty. Operand 271 states and 271 transitions. [2019-05-23 09:27:33,583 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 271 [2019-05-23 09:27:33,583 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:33,583 INFO L146 ILogger]: trace histogram [132, 132, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:33,583 INFO L146 ILogger]: === Iteration 133 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:33,583 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:33,583 INFO L146 ILogger]: Analyzing trace with hash 830885446, now seen corresponding path program 132 times [2019-05-23 09:27:33,584 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:33,596 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:33,599 INFO L146 ILogger]: Trace formula consists of 407 conjuncts, 134 conjunts are in the unsatisfiable core [2019-05-23 09:27:33,600 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:39,838 INFO L146 ILogger]: Checked inductivity of 17424 backedges. 0 proven. 17424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:39,838 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:39,838 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [134] total 134 [2019-05-23 09:27:39,838 INFO L146 ILogger]: Interpolant automaton has 135 states [2019-05-23 09:27:39,839 INFO L146 ILogger]: Constructing interpolant automaton starting with 135 interpolants. [2019-05-23 09:27:39,840 INFO L146 ILogger]: CoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2019-05-23 09:27:39,840 INFO L146 ILogger]: Start difference. First operand 271 states and 271 transitions. Second operand 135 states. [2019-05-23 09:27:40,322 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:40,323 INFO L146 ILogger]: Finished difference Result 274 states and 274 transitions. [2019-05-23 09:27:40,323 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2019-05-23 09:27:40,323 INFO L146 ILogger]: Start accepts. Automaton has 135 states. Word has length 270 [2019-05-23 09:27:40,323 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:40,324 INFO L146 ILogger]: With dead ends: 274 [2019-05-23 09:27:40,324 INFO L146 ILogger]: Without dead ends: 274 [2019-05-23 09:27:40,325 INFO L146 ILogger]: 0 DeclaredPredicates, 269 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=9045, Invalid=9045, Unknown=0, NotChecked=0, Total=18090 [2019-05-23 09:27:40,325 INFO L146 ILogger]: Start minimizeSevpa. Operand 274 states. [2019-05-23 09:27:40,327 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 274 to 273. [2019-05-23 09:27:40,327 INFO L146 ILogger]: Start removeUnreachable. Operand 273 states. [2019-05-23 09:27:40,327 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 273 states to 273 states and 273 transitions. [2019-05-23 09:27:40,328 INFO L146 ILogger]: Start accepts. Automaton has 273 states and 273 transitions. Word has length 270 [2019-05-23 09:27:40,328 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:40,328 INFO L146 ILogger]: Abstraction has 273 states and 273 transitions. [2019-05-23 09:27:40,328 INFO L146 ILogger]: Interpolant automaton has 135 states. [2019-05-23 09:27:40,328 INFO L146 ILogger]: Start isEmpty. Operand 273 states and 273 transitions. [2019-05-23 09:27:40,329 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 273 [2019-05-23 09:27:40,329 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:40,329 INFO L146 ILogger]: trace histogram [133, 133, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:40,329 INFO L146 ILogger]: === Iteration 134 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:40,329 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:40,329 INFO L146 ILogger]: Analyzing trace with hash 1161657125, now seen corresponding path program 133 times [2019-05-23 09:27:40,330 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:40,342 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:40,345 INFO L146 ILogger]: Trace formula consists of 410 conjuncts, 135 conjunts are in the unsatisfiable core [2019-05-23 09:27:40,346 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:46,580 INFO L146 ILogger]: Checked inductivity of 17689 backedges. 0 proven. 17689 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:46,580 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:46,581 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [135] total 135 [2019-05-23 09:27:46,581 INFO L146 ILogger]: Interpolant automaton has 136 states [2019-05-23 09:27:46,582 INFO L146 ILogger]: Constructing interpolant automaton starting with 136 interpolants. [2019-05-23 09:27:46,582 INFO L146 ILogger]: CoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2019-05-23 09:27:46,582 INFO L146 ILogger]: Start difference. First operand 273 states and 273 transitions. Second operand 136 states. [2019-05-23 09:27:47,073 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:47,073 INFO L146 ILogger]: Finished difference Result 276 states and 276 transitions. [2019-05-23 09:27:47,073 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2019-05-23 09:27:47,073 INFO L146 ILogger]: Start accepts. Automaton has 136 states. Word has length 272 [2019-05-23 09:27:47,074 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:47,074 INFO L146 ILogger]: With dead ends: 276 [2019-05-23 09:27:47,074 INFO L146 ILogger]: Without dead ends: 276 [2019-05-23 09:27:47,075 INFO L146 ILogger]: 0 DeclaredPredicates, 271 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=9180, Invalid=9180, Unknown=0, NotChecked=0, Total=18360 [2019-05-23 09:27:47,075 INFO L146 ILogger]: Start minimizeSevpa. Operand 276 states. [2019-05-23 09:27:47,076 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 276 to 275. [2019-05-23 09:27:47,076 INFO L146 ILogger]: Start removeUnreachable. Operand 275 states. [2019-05-23 09:27:47,076 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 275 states to 275 states and 275 transitions. [2019-05-23 09:27:47,076 INFO L146 ILogger]: Start accepts. Automaton has 275 states and 275 transitions. Word has length 272 [2019-05-23 09:27:47,077 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:47,077 INFO L146 ILogger]: Abstraction has 275 states and 275 transitions. [2019-05-23 09:27:47,077 INFO L146 ILogger]: Interpolant automaton has 136 states. [2019-05-23 09:27:47,077 INFO L146 ILogger]: Start isEmpty. Operand 275 states and 275 transitions. [2019-05-23 09:27:47,077 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 275 [2019-05-23 09:27:47,077 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:47,078 INFO L146 ILogger]: trace histogram [134, 134, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:47,078 INFO L146 ILogger]: === Iteration 135 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:47,078 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:47,078 INFO L146 ILogger]: Analyzing trace with hash 1205660740, now seen corresponding path program 134 times [2019-05-23 09:27:47,078 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:47,091 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:47,093 INFO L146 ILogger]: Trace formula consists of 413 conjuncts, 136 conjunts are in the unsatisfiable core [2019-05-23 09:27:47,094 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:27:53,266 INFO L146 ILogger]: Checked inductivity of 17956 backedges. 0 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:27:53,266 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:27:53,266 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [136] total 136 [2019-05-23 09:27:53,267 INFO L146 ILogger]: Interpolant automaton has 137 states [2019-05-23 09:27:53,268 INFO L146 ILogger]: Constructing interpolant automaton starting with 137 interpolants. [2019-05-23 09:27:53,268 INFO L146 ILogger]: CoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2019-05-23 09:27:53,268 INFO L146 ILogger]: Start difference. First operand 275 states and 275 transitions. Second operand 137 states. [2019-05-23 09:27:53,769 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:27:53,769 INFO L146 ILogger]: Finished difference Result 278 states and 278 transitions. [2019-05-23 09:27:53,769 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2019-05-23 09:27:53,769 INFO L146 ILogger]: Start accepts. Automaton has 137 states. Word has length 274 [2019-05-23 09:27:53,770 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:27:53,770 INFO L146 ILogger]: With dead ends: 278 [2019-05-23 09:27:53,770 INFO L146 ILogger]: Without dead ends: 278 [2019-05-23 09:27:53,771 INFO L146 ILogger]: 0 DeclaredPredicates, 273 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=9316, Invalid=9316, Unknown=0, NotChecked=0, Total=18632 [2019-05-23 09:27:53,771 INFO L146 ILogger]: Start minimizeSevpa. Operand 278 states. [2019-05-23 09:27:53,773 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 278 to 277. [2019-05-23 09:27:53,773 INFO L146 ILogger]: Start removeUnreachable. Operand 277 states. [2019-05-23 09:27:53,773 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 277 states to 277 states and 277 transitions. [2019-05-23 09:27:53,774 INFO L146 ILogger]: Start accepts. Automaton has 277 states and 277 transitions. Word has length 274 [2019-05-23 09:27:53,774 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:27:53,774 INFO L146 ILogger]: Abstraction has 277 states and 277 transitions. [2019-05-23 09:27:53,774 INFO L146 ILogger]: Interpolant automaton has 137 states. [2019-05-23 09:27:53,774 INFO L146 ILogger]: Start isEmpty. Operand 277 states and 277 transitions. [2019-05-23 09:27:53,775 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 277 [2019-05-23 09:27:53,775 INFO L146 ILogger]: Found error trace [2019-05-23 09:27:53,775 INFO L146 ILogger]: trace histogram [135, 135, 1, 1, 1, 1, 1, 1] [2019-05-23 09:27:53,775 INFO L146 ILogger]: === Iteration 136 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:27:53,775 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:27:53,775 INFO L146 ILogger]: Analyzing trace with hash 543461795, now seen corresponding path program 135 times [2019-05-23 09:27:53,776 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:27:53,794 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:27:53,798 INFO L146 ILogger]: Trace formula consists of 416 conjuncts, 137 conjunts are in the unsatisfiable core [2019-05-23 09:27:53,799 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:00,335 INFO L146 ILogger]: Checked inductivity of 18225 backedges. 0 proven. 18225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:00,335 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:00,335 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [137] total 137 [2019-05-23 09:28:00,335 INFO L146 ILogger]: Interpolant automaton has 138 states [2019-05-23 09:28:00,336 INFO L146 ILogger]: Constructing interpolant automaton starting with 138 interpolants. [2019-05-23 09:28:00,337 INFO L146 ILogger]: CoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2019-05-23 09:28:00,337 INFO L146 ILogger]: Start difference. First operand 277 states and 277 transitions. Second operand 138 states. [2019-05-23 09:28:00,850 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:00,850 INFO L146 ILogger]: Finished difference Result 280 states and 280 transitions. [2019-05-23 09:28:00,851 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2019-05-23 09:28:00,851 INFO L146 ILogger]: Start accepts. Automaton has 138 states. Word has length 276 [2019-05-23 09:28:00,851 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:00,851 INFO L146 ILogger]: With dead ends: 280 [2019-05-23 09:28:00,852 INFO L146 ILogger]: Without dead ends: 280 [2019-05-23 09:28:00,852 INFO L146 ILogger]: 0 DeclaredPredicates, 275 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=9453, Invalid=9453, Unknown=0, NotChecked=0, Total=18906 [2019-05-23 09:28:00,853 INFO L146 ILogger]: Start minimizeSevpa. Operand 280 states. [2019-05-23 09:28:00,854 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 280 to 279. [2019-05-23 09:28:00,854 INFO L146 ILogger]: Start removeUnreachable. Operand 279 states. [2019-05-23 09:28:00,854 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 279 states to 279 states and 279 transitions. [2019-05-23 09:28:00,855 INFO L146 ILogger]: Start accepts. Automaton has 279 states and 279 transitions. Word has length 276 [2019-05-23 09:28:00,855 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:00,855 INFO L146 ILogger]: Abstraction has 279 states and 279 transitions. [2019-05-23 09:28:00,855 INFO L146 ILogger]: Interpolant automaton has 138 states. [2019-05-23 09:28:00,855 INFO L146 ILogger]: Start isEmpty. Operand 279 states and 279 transitions. [2019-05-23 09:28:00,856 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 279 [2019-05-23 09:28:00,856 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:00,856 INFO L146 ILogger]: trace histogram [136, 136, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:00,857 INFO L146 ILogger]: === Iteration 137 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:00,857 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:00,857 INFO L146 ILogger]: Analyzing trace with hash -174564542, now seen corresponding path program 136 times [2019-05-23 09:28:00,857 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:00,870 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:00,874 INFO L146 ILogger]: Trace formula consists of 419 conjuncts, 138 conjunts are in the unsatisfiable core [2019-05-23 09:28:00,876 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:07,481 INFO L146 ILogger]: Checked inductivity of 18496 backedges. 0 proven. 18496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:07,482 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:07,482 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [138] total 138 [2019-05-23 09:28:07,482 INFO L146 ILogger]: Interpolant automaton has 139 states [2019-05-23 09:28:07,483 INFO L146 ILogger]: Constructing interpolant automaton starting with 139 interpolants. [2019-05-23 09:28:07,483 INFO L146 ILogger]: CoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2019-05-23 09:28:07,483 INFO L146 ILogger]: Start difference. First operand 279 states and 279 transitions. Second operand 139 states. [2019-05-23 09:28:08,005 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:08,005 INFO L146 ILogger]: Finished difference Result 282 states and 282 transitions. [2019-05-23 09:28:08,005 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2019-05-23 09:28:08,005 INFO L146 ILogger]: Start accepts. Automaton has 139 states. Word has length 278 [2019-05-23 09:28:08,006 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:08,006 INFO L146 ILogger]: With dead ends: 282 [2019-05-23 09:28:08,006 INFO L146 ILogger]: Without dead ends: 282 [2019-05-23 09:28:08,007 INFO L146 ILogger]: 0 DeclaredPredicates, 277 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=9591, Invalid=9591, Unknown=0, NotChecked=0, Total=19182 [2019-05-23 09:28:08,007 INFO L146 ILogger]: Start minimizeSevpa. Operand 282 states. [2019-05-23 09:28:08,008 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 282 to 281. [2019-05-23 09:28:08,008 INFO L146 ILogger]: Start removeUnreachable. Operand 281 states. [2019-05-23 09:28:08,008 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2019-05-23 09:28:08,008 INFO L146 ILogger]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 278 [2019-05-23 09:28:08,008 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:08,009 INFO L146 ILogger]: Abstraction has 281 states and 281 transitions. [2019-05-23 09:28:08,009 INFO L146 ILogger]: Interpolant automaton has 139 states. [2019-05-23 09:28:08,009 INFO L146 ILogger]: Start isEmpty. Operand 281 states and 281 transitions. [2019-05-23 09:28:08,009 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 281 [2019-05-23 09:28:08,009 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:08,009 INFO L146 ILogger]: trace histogram [137, 137, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:08,010 INFO L146 ILogger]: === Iteration 138 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:08,010 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:08,010 INFO L146 ILogger]: Analyzing trace with hash 1291860257, now seen corresponding path program 137 times [2019-05-23 09:28:08,010 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:08,026 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:08,029 INFO L146 ILogger]: Trace formula consists of 422 conjuncts, 139 conjunts are in the unsatisfiable core [2019-05-23 09:28:08,030 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:14,939 INFO L146 ILogger]: Checked inductivity of 18769 backedges. 0 proven. 18769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:14,939 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:14,939 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [139] total 139 [2019-05-23 09:28:14,940 INFO L146 ILogger]: Interpolant automaton has 140 states [2019-05-23 09:28:14,941 INFO L146 ILogger]: Constructing interpolant automaton starting with 140 interpolants. [2019-05-23 09:28:14,941 INFO L146 ILogger]: CoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2019-05-23 09:28:14,941 INFO L146 ILogger]: Start difference. First operand 281 states and 281 transitions. Second operand 140 states. [2019-05-23 09:28:15,484 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:15,484 INFO L146 ILogger]: Finished difference Result 284 states and 284 transitions. [2019-05-23 09:28:15,484 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 140 states. [2019-05-23 09:28:15,484 INFO L146 ILogger]: Start accepts. Automaton has 140 states. Word has length 280 [2019-05-23 09:28:15,485 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:15,485 INFO L146 ILogger]: With dead ends: 284 [2019-05-23 09:28:15,485 INFO L146 ILogger]: Without dead ends: 284 [2019-05-23 09:28:15,486 INFO L146 ILogger]: 0 DeclaredPredicates, 279 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=9730, Invalid=9730, Unknown=0, NotChecked=0, Total=19460 [2019-05-23 09:28:15,486 INFO L146 ILogger]: Start minimizeSevpa. Operand 284 states. [2019-05-23 09:28:15,487 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 284 to 283. [2019-05-23 09:28:15,487 INFO L146 ILogger]: Start removeUnreachable. Operand 283 states. [2019-05-23 09:28:15,488 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 283 states to 283 states and 283 transitions. [2019-05-23 09:28:15,488 INFO L146 ILogger]: Start accepts. Automaton has 283 states and 283 transitions. Word has length 280 [2019-05-23 09:28:15,488 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:15,488 INFO L146 ILogger]: Abstraction has 283 states and 283 transitions. [2019-05-23 09:28:15,488 INFO L146 ILogger]: Interpolant automaton has 140 states. [2019-05-23 09:28:15,488 INFO L146 ILogger]: Start isEmpty. Operand 283 states and 283 transitions. [2019-05-23 09:28:15,489 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 283 [2019-05-23 09:28:15,489 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:15,489 INFO L146 ILogger]: trace histogram [138, 138, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:15,490 INFO L146 ILogger]: === Iteration 139 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:15,490 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:15,490 INFO L146 ILogger]: Analyzing trace with hash 1776819008, now seen corresponding path program 138 times [2019-05-23 09:28:15,490 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:15,503 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:15,506 INFO L146 ILogger]: Trace formula consists of 425 conjuncts, 140 conjunts are in the unsatisfiable core [2019-05-23 09:28:15,507 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:22,286 INFO L146 ILogger]: Checked inductivity of 19044 backedges. 0 proven. 19044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:22,286 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:22,287 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [140] total 140 [2019-05-23 09:28:22,287 INFO L146 ILogger]: Interpolant automaton has 141 states [2019-05-23 09:28:22,288 INFO L146 ILogger]: Constructing interpolant automaton starting with 141 interpolants. [2019-05-23 09:28:22,288 INFO L146 ILogger]: CoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2019-05-23 09:28:22,288 INFO L146 ILogger]: Start difference. First operand 283 states and 283 transitions. Second operand 141 states. [2019-05-23 09:28:22,839 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:22,839 INFO L146 ILogger]: Finished difference Result 286 states and 286 transitions. [2019-05-23 09:28:22,839 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2019-05-23 09:28:22,840 INFO L146 ILogger]: Start accepts. Automaton has 141 states. Word has length 282 [2019-05-23 09:28:22,840 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:22,840 INFO L146 ILogger]: With dead ends: 286 [2019-05-23 09:28:22,840 INFO L146 ILogger]: Without dead ends: 286 [2019-05-23 09:28:22,841 INFO L146 ILogger]: 0 DeclaredPredicates, 281 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=9870, Invalid=9870, Unknown=0, NotChecked=0, Total=19740 [2019-05-23 09:28:22,841 INFO L146 ILogger]: Start minimizeSevpa. Operand 286 states. [2019-05-23 09:28:22,842 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 286 to 285. [2019-05-23 09:28:22,842 INFO L146 ILogger]: Start removeUnreachable. Operand 285 states. [2019-05-23 09:28:22,842 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 285 states to 285 states and 285 transitions. [2019-05-23 09:28:22,843 INFO L146 ILogger]: Start accepts. Automaton has 285 states and 285 transitions. Word has length 282 [2019-05-23 09:28:22,843 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:22,843 INFO L146 ILogger]: Abstraction has 285 states and 285 transitions. [2019-05-23 09:28:22,843 INFO L146 ILogger]: Interpolant automaton has 141 states. [2019-05-23 09:28:22,843 INFO L146 ILogger]: Start isEmpty. Operand 285 states and 285 transitions. [2019-05-23 09:28:22,844 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 285 [2019-05-23 09:28:22,844 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:22,844 INFO L146 ILogger]: trace histogram [139, 139, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:22,844 INFO L146 ILogger]: === Iteration 140 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:22,844 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:22,844 INFO L146 ILogger]: Analyzing trace with hash -329256545, now seen corresponding path program 139 times [2019-05-23 09:28:22,845 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:22,859 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:22,861 INFO L146 ILogger]: Trace formula consists of 428 conjuncts, 141 conjunts are in the unsatisfiable core [2019-05-23 09:28:22,863 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:29,931 INFO L146 ILogger]: Checked inductivity of 19321 backedges. 0 proven. 19321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:29,932 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:29,932 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [141] total 141 [2019-05-23 09:28:29,932 INFO L146 ILogger]: Interpolant automaton has 142 states [2019-05-23 09:28:29,933 INFO L146 ILogger]: Constructing interpolant automaton starting with 142 interpolants. [2019-05-23 09:28:29,934 INFO L146 ILogger]: CoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2019-05-23 09:28:29,934 INFO L146 ILogger]: Start difference. First operand 285 states and 285 transitions. Second operand 142 states. [2019-05-23 09:28:30,476 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:30,477 INFO L146 ILogger]: Finished difference Result 288 states and 288 transitions. [2019-05-23 09:28:30,477 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2019-05-23 09:28:30,477 INFO L146 ILogger]: Start accepts. Automaton has 142 states. Word has length 284 [2019-05-23 09:28:30,478 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:30,478 INFO L146 ILogger]: With dead ends: 288 [2019-05-23 09:28:30,478 INFO L146 ILogger]: Without dead ends: 288 [2019-05-23 09:28:30,479 INFO L146 ILogger]: 0 DeclaredPredicates, 283 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=10011, Invalid=10011, Unknown=0, NotChecked=0, Total=20022 [2019-05-23 09:28:30,480 INFO L146 ILogger]: Start minimizeSevpa. Operand 288 states. [2019-05-23 09:28:30,481 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 288 to 287. [2019-05-23 09:28:30,481 INFO L146 ILogger]: Start removeUnreachable. Operand 287 states. [2019-05-23 09:28:30,482 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2019-05-23 09:28:30,482 INFO L146 ILogger]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 284 [2019-05-23 09:28:30,482 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:30,482 INFO L146 ILogger]: Abstraction has 287 states and 287 transitions. [2019-05-23 09:28:30,482 INFO L146 ILogger]: Interpolant automaton has 142 states. [2019-05-23 09:28:30,482 INFO L146 ILogger]: Start isEmpty. Operand 287 states and 287 transitions. [2019-05-23 09:28:30,483 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 287 [2019-05-23 09:28:30,483 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:30,483 INFO L146 ILogger]: trace histogram [140, 140, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:30,483 INFO L146 ILogger]: === Iteration 141 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:30,483 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:30,483 INFO L146 ILogger]: Analyzing trace with hash -1338266562, now seen corresponding path program 140 times [2019-05-23 09:28:30,484 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:30,497 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:30,500 INFO L146 ILogger]: Trace formula consists of 431 conjuncts, 142 conjunts are in the unsatisfiable core [2019-05-23 09:28:30,502 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:37,402 INFO L146 ILogger]: Checked inductivity of 19600 backedges. 0 proven. 19600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:37,402 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:37,403 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [142] total 142 [2019-05-23 09:28:37,403 INFO L146 ILogger]: Interpolant automaton has 143 states [2019-05-23 09:28:37,404 INFO L146 ILogger]: Constructing interpolant automaton starting with 143 interpolants. [2019-05-23 09:28:37,404 INFO L146 ILogger]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2019-05-23 09:28:37,404 INFO L146 ILogger]: Start difference. First operand 287 states and 287 transitions. Second operand 143 states. [2019-05-23 09:28:37,955 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:37,955 INFO L146 ILogger]: Finished difference Result 290 states and 290 transitions. [2019-05-23 09:28:37,956 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2019-05-23 09:28:37,956 INFO L146 ILogger]: Start accepts. Automaton has 143 states. Word has length 286 [2019-05-23 09:28:37,956 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:37,957 INFO L146 ILogger]: With dead ends: 290 [2019-05-23 09:28:37,957 INFO L146 ILogger]: Without dead ends: 290 [2019-05-23 09:28:37,958 INFO L146 ILogger]: 0 DeclaredPredicates, 285 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2019-05-23 09:28:37,958 INFO L146 ILogger]: Start minimizeSevpa. Operand 290 states. [2019-05-23 09:28:37,960 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 290 to 289. [2019-05-23 09:28:37,960 INFO L146 ILogger]: Start removeUnreachable. Operand 289 states. [2019-05-23 09:28:37,960 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 289 states to 289 states and 289 transitions. [2019-05-23 09:28:37,960 INFO L146 ILogger]: Start accepts. Automaton has 289 states and 289 transitions. Word has length 286 [2019-05-23 09:28:37,961 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:37,961 INFO L146 ILogger]: Abstraction has 289 states and 289 transitions. [2019-05-23 09:28:37,961 INFO L146 ILogger]: Interpolant automaton has 143 states. [2019-05-23 09:28:37,961 INFO L146 ILogger]: Start isEmpty. Operand 289 states and 289 transitions. [2019-05-23 09:28:37,962 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 289 [2019-05-23 09:28:37,962 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:37,962 INFO L146 ILogger]: trace histogram [141, 141, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:37,962 INFO L146 ILogger]: === Iteration 142 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:37,963 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:37,963 INFO L146 ILogger]: Analyzing trace with hash -334284003, now seen corresponding path program 141 times [2019-05-23 09:28:37,963 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:37,986 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:37,990 INFO L146 ILogger]: Trace formula consists of 434 conjuncts, 143 conjunts are in the unsatisfiable core [2019-05-23 09:28:37,993 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:45,392 INFO L146 ILogger]: Checked inductivity of 19881 backedges. 0 proven. 19881 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:45,393 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:45,393 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [143] total 143 [2019-05-23 09:28:45,393 INFO L146 ILogger]: Interpolant automaton has 144 states [2019-05-23 09:28:45,394 INFO L146 ILogger]: Constructing interpolant automaton starting with 144 interpolants. [2019-05-23 09:28:45,395 INFO L146 ILogger]: CoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2019-05-23 09:28:45,395 INFO L146 ILogger]: Start difference. First operand 289 states and 289 transitions. Second operand 144 states. [2019-05-23 09:28:45,919 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:45,920 INFO L146 ILogger]: Finished difference Result 292 states and 292 transitions. [2019-05-23 09:28:45,920 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2019-05-23 09:28:45,920 INFO L146 ILogger]: Start accepts. Automaton has 144 states. Word has length 288 [2019-05-23 09:28:45,920 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:45,921 INFO L146 ILogger]: With dead ends: 292 [2019-05-23 09:28:45,921 INFO L146 ILogger]: Without dead ends: 292 [2019-05-23 09:28:45,922 INFO L146 ILogger]: 0 DeclaredPredicates, 287 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=10296, Invalid=10296, Unknown=0, NotChecked=0, Total=20592 [2019-05-23 09:28:45,923 INFO L146 ILogger]: Start minimizeSevpa. Operand 292 states. [2019-05-23 09:28:45,924 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 292 to 291. [2019-05-23 09:28:45,925 INFO L146 ILogger]: Start removeUnreachable. Operand 291 states. [2019-05-23 09:28:45,925 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 291 states to 291 states and 291 transitions. [2019-05-23 09:28:45,925 INFO L146 ILogger]: Start accepts. Automaton has 291 states and 291 transitions. Word has length 288 [2019-05-23 09:28:45,925 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:45,925 INFO L146 ILogger]: Abstraction has 291 states and 291 transitions. [2019-05-23 09:28:45,925 INFO L146 ILogger]: Interpolant automaton has 144 states. [2019-05-23 09:28:45,926 INFO L146 ILogger]: Start isEmpty. Operand 291 states and 291 transitions. [2019-05-23 09:28:45,926 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 291 [2019-05-23 09:28:45,926 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:45,926 INFO L146 ILogger]: trace histogram [142, 142, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:45,927 INFO L146 ILogger]: === Iteration 143 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:45,927 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:45,927 INFO L146 ILogger]: Analyzing trace with hash -1874686404, now seen corresponding path program 142 times [2019-05-23 09:28:45,927 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:45,941 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:45,943 INFO L146 ILogger]: Trace formula consists of 437 conjuncts, 144 conjunts are in the unsatisfiable core [2019-05-23 09:28:45,944 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:28:52,998 INFO L146 ILogger]: Checked inductivity of 20164 backedges. 0 proven. 20164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:28:52,999 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:28:52,999 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [144] total 144 [2019-05-23 09:28:52,999 INFO L146 ILogger]: Interpolant automaton has 145 states [2019-05-23 09:28:53,000 INFO L146 ILogger]: Constructing interpolant automaton starting with 145 interpolants. [2019-05-23 09:28:53,000 INFO L146 ILogger]: CoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2019-05-23 09:28:53,001 INFO L146 ILogger]: Start difference. First operand 291 states and 291 transitions. Second operand 145 states. [2019-05-23 09:28:53,566 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:28:53,566 INFO L146 ILogger]: Finished difference Result 294 states and 294 transitions. [2019-05-23 09:28:53,566 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2019-05-23 09:28:53,567 INFO L146 ILogger]: Start accepts. Automaton has 145 states. Word has length 290 [2019-05-23 09:28:53,567 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:28:53,567 INFO L146 ILogger]: With dead ends: 294 [2019-05-23 09:28:53,568 INFO L146 ILogger]: Without dead ends: 294 [2019-05-23 09:28:53,568 INFO L146 ILogger]: 0 DeclaredPredicates, 289 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=10440, Invalid=10440, Unknown=0, NotChecked=0, Total=20880 [2019-05-23 09:28:53,568 INFO L146 ILogger]: Start minimizeSevpa. Operand 294 states. [2019-05-23 09:28:53,569 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 294 to 293. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Start removeUnreachable. Operand 293 states. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 293 states to 293 states and 293 transitions. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Start accepts. Automaton has 293 states and 293 transitions. Word has length 290 [2019-05-23 09:28:53,570 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Abstraction has 293 states and 293 transitions. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Interpolant automaton has 145 states. [2019-05-23 09:28:53,570 INFO L146 ILogger]: Start isEmpty. Operand 293 states and 293 transitions. [2019-05-23 09:28:53,571 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 293 [2019-05-23 09:28:53,571 INFO L146 ILogger]: Found error trace [2019-05-23 09:28:53,571 INFO L146 ILogger]: trace histogram [143, 143, 1, 1, 1, 1, 1, 1] [2019-05-23 09:28:53,571 INFO L146 ILogger]: === Iteration 144 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:28:53,571 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:28:53,572 INFO L146 ILogger]: Analyzing trace with hash -437676645, now seen corresponding path program 143 times [2019-05-23 09:28:53,572 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:28:53,585 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:28:53,588 INFO L146 ILogger]: Trace formula consists of 440 conjuncts, 145 conjunts are in the unsatisfiable core [2019-05-23 09:28:53,590 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:00,886 INFO L146 ILogger]: Checked inductivity of 20449 backedges. 0 proven. 20449 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:00,887 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:00,887 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [145] total 145 [2019-05-23 09:29:00,887 INFO L146 ILogger]: Interpolant automaton has 146 states [2019-05-23 09:29:00,888 INFO L146 ILogger]: Constructing interpolant automaton starting with 146 interpolants. [2019-05-23 09:29:00,889 INFO L146 ILogger]: CoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2019-05-23 09:29:00,889 INFO L146 ILogger]: Start difference. First operand 293 states and 293 transitions. Second operand 146 states. [2019-05-23 09:29:01,508 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:01,508 INFO L146 ILogger]: Finished difference Result 296 states and 296 transitions. [2019-05-23 09:29:01,508 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2019-05-23 09:29:01,508 INFO L146 ILogger]: Start accepts. Automaton has 146 states. Word has length 292 [2019-05-23 09:29:01,508 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:01,509 INFO L146 ILogger]: With dead ends: 296 [2019-05-23 09:29:01,509 INFO L146 ILogger]: Without dead ends: 296 [2019-05-23 09:29:01,510 INFO L146 ILogger]: 0 DeclaredPredicates, 291 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=10585, Invalid=10585, Unknown=0, NotChecked=0, Total=21170 [2019-05-23 09:29:01,510 INFO L146 ILogger]: Start minimizeSevpa. Operand 296 states. [2019-05-23 09:29:01,512 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 296 to 295. [2019-05-23 09:29:01,512 INFO L146 ILogger]: Start removeUnreachable. Operand 295 states. [2019-05-23 09:29:01,512 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 295 states to 295 states and 295 transitions. [2019-05-23 09:29:01,512 INFO L146 ILogger]: Start accepts. Automaton has 295 states and 295 transitions. Word has length 292 [2019-05-23 09:29:01,512 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:01,513 INFO L146 ILogger]: Abstraction has 295 states and 295 transitions. [2019-05-23 09:29:01,513 INFO L146 ILogger]: Interpolant automaton has 146 states. [2019-05-23 09:29:01,513 INFO L146 ILogger]: Start isEmpty. Operand 295 states and 295 transitions. [2019-05-23 09:29:01,513 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 295 [2019-05-23 09:29:01,513 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:01,514 INFO L146 ILogger]: trace histogram [144, 144, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:01,514 INFO L146 ILogger]: === Iteration 145 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:01,514 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:01,514 INFO L146 ILogger]: Analyzing trace with hash 1844199738, now seen corresponding path program 144 times [2019-05-23 09:29:01,514 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:01,529 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:01,531 INFO L146 ILogger]: Trace formula consists of 443 conjuncts, 146 conjunts are in the unsatisfiable core [2019-05-23 09:29:01,533 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:08,774 INFO L146 ILogger]: Checked inductivity of 20736 backedges. 0 proven. 20736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:08,774 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:08,774 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [146] total 146 [2019-05-23 09:29:08,774 INFO L146 ILogger]: Interpolant automaton has 147 states [2019-05-23 09:29:08,775 INFO L146 ILogger]: Constructing interpolant automaton starting with 147 interpolants. [2019-05-23 09:29:08,776 INFO L146 ILogger]: CoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2019-05-23 09:29:08,776 INFO L146 ILogger]: Start difference. First operand 295 states and 295 transitions. Second operand 147 states. [2019-05-23 09:29:09,339 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:09,339 INFO L146 ILogger]: Finished difference Result 298 states and 298 transitions. [2019-05-23 09:29:09,340 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2019-05-23 09:29:09,340 INFO L146 ILogger]: Start accepts. Automaton has 147 states. Word has length 294 [2019-05-23 09:29:09,340 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:09,341 INFO L146 ILogger]: With dead ends: 298 [2019-05-23 09:29:09,341 INFO L146 ILogger]: Without dead ends: 298 [2019-05-23 09:29:09,341 INFO L146 ILogger]: 0 DeclaredPredicates, 293 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=10731, Invalid=10731, Unknown=0, NotChecked=0, Total=21462 [2019-05-23 09:29:09,342 INFO L146 ILogger]: Start minimizeSevpa. Operand 298 states. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 298 to 297. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Start removeUnreachable. Operand 297 states. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 297 states to 297 states and 297 transitions. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Start accepts. Automaton has 297 states and 297 transitions. Word has length 294 [2019-05-23 09:29:09,343 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Abstraction has 297 states and 297 transitions. [2019-05-23 09:29:09,343 INFO L146 ILogger]: Interpolant automaton has 147 states. [2019-05-23 09:29:09,344 INFO L146 ILogger]: Start isEmpty. Operand 297 states and 297 transitions. [2019-05-23 09:29:09,344 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 297 [2019-05-23 09:29:09,344 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:09,344 INFO L146 ILogger]: trace histogram [145, 145, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:09,345 INFO L146 ILogger]: === Iteration 146 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:09,345 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:09,345 INFO L146 ILogger]: Analyzing trace with hash -884455, now seen corresponding path program 145 times [2019-05-23 09:29:09,345 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:09,360 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:09,363 INFO L146 ILogger]: Trace formula consists of 446 conjuncts, 147 conjunts are in the unsatisfiable core [2019-05-23 09:29:09,365 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:16,853 INFO L146 ILogger]: Checked inductivity of 21025 backedges. 0 proven. 21025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:16,854 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:16,854 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [147] total 147 [2019-05-23 09:29:16,854 INFO L146 ILogger]: Interpolant automaton has 148 states [2019-05-23 09:29:16,855 INFO L146 ILogger]: Constructing interpolant automaton starting with 148 interpolants. [2019-05-23 09:29:16,856 INFO L146 ILogger]: CoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2019-05-23 09:29:16,856 INFO L146 ILogger]: Start difference. First operand 297 states and 297 transitions. Second operand 148 states. [2019-05-23 09:29:17,434 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:17,434 INFO L146 ILogger]: Finished difference Result 300 states and 300 transitions. [2019-05-23 09:29:17,434 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2019-05-23 09:29:17,434 INFO L146 ILogger]: Start accepts. Automaton has 148 states. Word has length 296 [2019-05-23 09:29:17,435 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:17,435 INFO L146 ILogger]: With dead ends: 300 [2019-05-23 09:29:17,435 INFO L146 ILogger]: Without dead ends: 300 [2019-05-23 09:29:17,436 INFO L146 ILogger]: 0 DeclaredPredicates, 295 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=10878, Invalid=10878, Unknown=0, NotChecked=0, Total=21756 [2019-05-23 09:29:17,437 INFO L146 ILogger]: Start minimizeSevpa. Operand 300 states. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 300 to 299. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Start removeUnreachable. Operand 299 states. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 299 states to 299 states and 299 transitions. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Start accepts. Automaton has 299 states and 299 transitions. Word has length 296 [2019-05-23 09:29:17,438 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Abstraction has 299 states and 299 transitions. [2019-05-23 09:29:17,438 INFO L146 ILogger]: Interpolant automaton has 148 states. [2019-05-23 09:29:17,439 INFO L146 ILogger]: Start isEmpty. Operand 299 states and 299 transitions. [2019-05-23 09:29:17,439 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 299 [2019-05-23 09:29:17,439 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:17,439 INFO L146 ILogger]: trace histogram [146, 146, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:17,440 INFO L146 ILogger]: === Iteration 147 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:17,440 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:17,440 INFO L146 ILogger]: Analyzing trace with hash 694699320, now seen corresponding path program 146 times [2019-05-23 09:29:17,440 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:17,461 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:17,464 INFO L146 ILogger]: Trace formula consists of 449 conjuncts, 148 conjunts are in the unsatisfiable core [2019-05-23 09:29:17,467 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:24,925 INFO L146 ILogger]: Checked inductivity of 21316 backedges. 0 proven. 21316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:24,925 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:24,925 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [148] total 148 [2019-05-23 09:29:24,925 INFO L146 ILogger]: Interpolant automaton has 149 states [2019-05-23 09:29:24,926 INFO L146 ILogger]: Constructing interpolant automaton starting with 149 interpolants. [2019-05-23 09:29:24,927 INFO L146 ILogger]: CoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2019-05-23 09:29:24,927 INFO L146 ILogger]: Start difference. First operand 299 states and 299 transitions. Second operand 149 states. [2019-05-23 09:29:25,571 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:25,572 INFO L146 ILogger]: Finished difference Result 302 states and 302 transitions. [2019-05-23 09:29:25,572 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-05-23 09:29:25,572 INFO L146 ILogger]: Start accepts. Automaton has 149 states. Word has length 298 [2019-05-23 09:29:25,572 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:25,573 INFO L146 ILogger]: With dead ends: 302 [2019-05-23 09:29:25,573 INFO L146 ILogger]: Without dead ends: 302 [2019-05-23 09:29:25,574 INFO L146 ILogger]: 0 DeclaredPredicates, 297 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=11026, Invalid=11026, Unknown=0, NotChecked=0, Total=22052 [2019-05-23 09:29:25,574 INFO L146 ILogger]: Start minimizeSevpa. Operand 302 states. [2019-05-23 09:29:25,575 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 302 to 301. [2019-05-23 09:29:25,575 INFO L146 ILogger]: Start removeUnreachable. Operand 301 states. [2019-05-23 09:29:25,576 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 301 states to 301 states and 301 transitions. [2019-05-23 09:29:25,576 INFO L146 ILogger]: Start accepts. Automaton has 301 states and 301 transitions. Word has length 298 [2019-05-23 09:29:25,576 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:25,576 INFO L146 ILogger]: Abstraction has 301 states and 301 transitions. [2019-05-23 09:29:25,576 INFO L146 ILogger]: Interpolant automaton has 149 states. [2019-05-23 09:29:25,577 INFO L146 ILogger]: Start isEmpty. Operand 301 states and 301 transitions. [2019-05-23 09:29:25,577 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 301 [2019-05-23 09:29:25,578 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:25,578 INFO L146 ILogger]: trace histogram [147, 147, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:25,578 INFO L146 ILogger]: === Iteration 148 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:25,578 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:25,578 INFO L146 ILogger]: Analyzing trace with hash -864191081, now seen corresponding path program 147 times [2019-05-23 09:29:25,578 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:25,593 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:25,596 INFO L146 ILogger]: Trace formula consists of 452 conjuncts, 149 conjunts are in the unsatisfiable core [2019-05-23 09:29:25,599 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:33,424 INFO L146 ILogger]: Checked inductivity of 21609 backedges. 0 proven. 21609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:33,424 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:33,424 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [149] total 149 [2019-05-23 09:29:33,425 INFO L146 ILogger]: Interpolant automaton has 150 states [2019-05-23 09:29:33,426 INFO L146 ILogger]: Constructing interpolant automaton starting with 150 interpolants. [2019-05-23 09:29:33,426 INFO L146 ILogger]: CoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2019-05-23 09:29:33,426 INFO L146 ILogger]: Start difference. First operand 301 states and 301 transitions. Second operand 150 states. [2019-05-23 09:29:34,019 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:34,019 INFO L146 ILogger]: Finished difference Result 304 states and 304 transitions. [2019-05-23 09:29:34,020 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2019-05-23 09:29:34,020 INFO L146 ILogger]: Start accepts. Automaton has 150 states. Word has length 300 [2019-05-23 09:29:34,020 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:34,021 INFO L146 ILogger]: With dead ends: 304 [2019-05-23 09:29:34,021 INFO L146 ILogger]: Without dead ends: 304 [2019-05-23 09:29:34,022 INFO L146 ILogger]: 0 DeclaredPredicates, 299 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=11175, Invalid=11175, Unknown=0, NotChecked=0, Total=22350 [2019-05-23 09:29:34,022 INFO L146 ILogger]: Start minimizeSevpa. Operand 304 states. [2019-05-23 09:29:34,023 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 304 to 303. [2019-05-23 09:29:34,023 INFO L146 ILogger]: Start removeUnreachable. Operand 303 states. [2019-05-23 09:29:34,024 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 303 states to 303 states and 303 transitions. [2019-05-23 09:29:34,024 INFO L146 ILogger]: Start accepts. Automaton has 303 states and 303 transitions. Word has length 300 [2019-05-23 09:29:34,024 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:34,024 INFO L146 ILogger]: Abstraction has 303 states and 303 transitions. [2019-05-23 09:29:34,024 INFO L146 ILogger]: Interpolant automaton has 150 states. [2019-05-23 09:29:34,024 INFO L146 ILogger]: Start isEmpty. Operand 303 states and 303 transitions. [2019-05-23 09:29:34,025 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 303 [2019-05-23 09:29:34,025 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:34,025 INFO L146 ILogger]: trace histogram [148, 148, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:34,025 INFO L146 ILogger]: === Iteration 149 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:34,026 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:34,026 INFO L146 ILogger]: Analyzing trace with hash -14280138, now seen corresponding path program 148 times [2019-05-23 09:29:34,026 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:34,041 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:34,043 INFO L146 ILogger]: Trace formula consists of 455 conjuncts, 150 conjunts are in the unsatisfiable core [2019-05-23 09:29:34,045 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:41,937 INFO L146 ILogger]: Checked inductivity of 21904 backedges. 0 proven. 21904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:41,937 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:41,937 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [150] total 150 [2019-05-23 09:29:41,938 INFO L146 ILogger]: Interpolant automaton has 151 states [2019-05-23 09:29:41,938 INFO L146 ILogger]: Constructing interpolant automaton starting with 151 interpolants. [2019-05-23 09:29:41,939 INFO L146 ILogger]: CoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2019-05-23 09:29:41,939 INFO L146 ILogger]: Start difference. First operand 303 states and 303 transitions. Second operand 151 states. [2019-05-23 09:29:42,588 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:42,588 INFO L146 ILogger]: Finished difference Result 306 states and 306 transitions. [2019-05-23 09:29:42,588 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2019-05-23 09:29:42,588 INFO L146 ILogger]: Start accepts. Automaton has 151 states. Word has length 302 [2019-05-23 09:29:42,589 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:42,589 INFO L146 ILogger]: With dead ends: 306 [2019-05-23 09:29:42,589 INFO L146 ILogger]: Without dead ends: 306 [2019-05-23 09:29:42,590 INFO L146 ILogger]: 0 DeclaredPredicates, 301 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=11325, Invalid=11325, Unknown=0, NotChecked=0, Total=22650 [2019-05-23 09:29:42,590 INFO L146 ILogger]: Start minimizeSevpa. Operand 306 states. [2019-05-23 09:29:42,591 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 306 to 305. [2019-05-23 09:29:42,591 INFO L146 ILogger]: Start removeUnreachable. Operand 305 states. [2019-05-23 09:29:42,591 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 305 states to 305 states and 305 transitions. [2019-05-23 09:29:42,591 INFO L146 ILogger]: Start accepts. Automaton has 305 states and 305 transitions. Word has length 302 [2019-05-23 09:29:42,592 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:42,592 INFO L146 ILogger]: Abstraction has 305 states and 305 transitions. [2019-05-23 09:29:42,592 INFO L146 ILogger]: Interpolant automaton has 151 states. [2019-05-23 09:29:42,592 INFO L146 ILogger]: Start isEmpty. Operand 305 states and 305 transitions. [2019-05-23 09:29:42,592 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 305 [2019-05-23 09:29:42,593 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:42,593 INFO L146 ILogger]: trace histogram [149, 149, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:42,593 INFO L146 ILogger]: === Iteration 150 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:42,593 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:42,593 INFO L146 ILogger]: Analyzing trace with hash 706349845, now seen corresponding path program 149 times [2019-05-23 09:29:42,593 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:42,608 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:42,610 INFO L146 ILogger]: Trace formula consists of 458 conjuncts, 151 conjunts are in the unsatisfiable core [2019-05-23 09:29:42,612 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:50,394 INFO L146 ILogger]: Checked inductivity of 22201 backedges. 0 proven. 22201 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:50,394 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:50,394 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [151] total 151 [2019-05-23 09:29:50,395 INFO L146 ILogger]: Interpolant automaton has 152 states [2019-05-23 09:29:50,396 INFO L146 ILogger]: Constructing interpolant automaton starting with 152 interpolants. [2019-05-23 09:29:50,396 INFO L146 ILogger]: CoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2019-05-23 09:29:50,396 INFO L146 ILogger]: Start difference. First operand 305 states and 305 transitions. Second operand 152 states. [2019-05-23 09:29:51,009 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:51,009 INFO L146 ILogger]: Finished difference Result 308 states and 308 transitions. [2019-05-23 09:29:51,009 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2019-05-23 09:29:51,009 INFO L146 ILogger]: Start accepts. Automaton has 152 states. Word has length 304 [2019-05-23 09:29:51,010 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:51,010 INFO L146 ILogger]: With dead ends: 308 [2019-05-23 09:29:51,010 INFO L146 ILogger]: Without dead ends: 308 [2019-05-23 09:29:51,011 INFO L146 ILogger]: 0 DeclaredPredicates, 303 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=11476, Invalid=11476, Unknown=0, NotChecked=0, Total=22952 [2019-05-23 09:29:51,011 INFO L146 ILogger]: Start minimizeSevpa. Operand 308 states. [2019-05-23 09:29:51,013 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 308 to 307. [2019-05-23 09:29:51,013 INFO L146 ILogger]: Start removeUnreachable. Operand 307 states. [2019-05-23 09:29:51,013 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2019-05-23 09:29:51,013 INFO L146 ILogger]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 304 [2019-05-23 09:29:51,014 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:51,014 INFO L146 ILogger]: Abstraction has 307 states and 307 transitions. [2019-05-23 09:29:51,014 INFO L146 ILogger]: Interpolant automaton has 152 states. [2019-05-23 09:29:51,014 INFO L146 ILogger]: Start isEmpty. Operand 307 states and 307 transitions. [2019-05-23 09:29:51,015 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 307 [2019-05-23 09:29:51,015 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:51,015 INFO L146 ILogger]: trace histogram [150, 150, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:51,015 INFO L146 ILogger]: === Iteration 151 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:51,015 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:29:51,015 INFO L146 ILogger]: Analyzing trace with hash 1742028852, now seen corresponding path program 150 times [2019-05-23 09:29:51,016 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:29:51,037 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:29:51,041 INFO L146 ILogger]: Trace formula consists of 461 conjuncts, 152 conjunts are in the unsatisfiable core [2019-05-23 09:29:51,043 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:29:59,310 INFO L146 ILogger]: Checked inductivity of 22500 backedges. 0 proven. 22500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:29:59,311 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:29:59,311 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [152] total 152 [2019-05-23 09:29:59,311 INFO L146 ILogger]: Interpolant automaton has 153 states [2019-05-23 09:29:59,312 INFO L146 ILogger]: Constructing interpolant automaton starting with 153 interpolants. [2019-05-23 09:29:59,313 INFO L146 ILogger]: CoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2019-05-23 09:29:59,313 INFO L146 ILogger]: Start difference. First operand 307 states and 307 transitions. Second operand 153 states. [2019-05-23 09:29:59,993 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:29:59,994 INFO L146 ILogger]: Finished difference Result 310 states and 310 transitions. [2019-05-23 09:29:59,994 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2019-05-23 09:29:59,994 INFO L146 ILogger]: Start accepts. Automaton has 153 states. Word has length 306 [2019-05-23 09:29:59,995 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:29:59,995 INFO L146 ILogger]: With dead ends: 310 [2019-05-23 09:29:59,995 INFO L146 ILogger]: Without dead ends: 310 [2019-05-23 09:29:59,996 INFO L146 ILogger]: 0 DeclaredPredicates, 305 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=11628, Invalid=11628, Unknown=0, NotChecked=0, Total=23256 [2019-05-23 09:29:59,996 INFO L146 ILogger]: Start minimizeSevpa. Operand 310 states. [2019-05-23 09:29:59,997 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 310 to 309. [2019-05-23 09:29:59,997 INFO L146 ILogger]: Start removeUnreachable. Operand 309 states. [2019-05-23 09:29:59,998 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 309 states to 309 states and 309 transitions. [2019-05-23 09:29:59,998 INFO L146 ILogger]: Start accepts. Automaton has 309 states and 309 transitions. Word has length 306 [2019-05-23 09:29:59,998 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:29:59,998 INFO L146 ILogger]: Abstraction has 309 states and 309 transitions. [2019-05-23 09:29:59,998 INFO L146 ILogger]: Interpolant automaton has 153 states. [2019-05-23 09:29:59,998 INFO L146 ILogger]: Start isEmpty. Operand 309 states and 309 transitions. [2019-05-23 09:29:59,999 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 309 [2019-05-23 09:29:59,999 INFO L146 ILogger]: Found error trace [2019-05-23 09:29:59,999 INFO L146 ILogger]: trace histogram [151, 151, 1, 1, 1, 1, 1, 1] [2019-05-23 09:29:59,999 INFO L146 ILogger]: === Iteration 152 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:29:59,999 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:00,000 INFO L146 ILogger]: Analyzing trace with hash 597141907, now seen corresponding path program 151 times [2019-05-23 09:30:00,000 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:00,015 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:00,018 INFO L146 ILogger]: Trace formula consists of 464 conjuncts, 153 conjunts are in the unsatisfiable core [2019-05-23 09:30:00,019 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:08,382 INFO L146 ILogger]: Checked inductivity of 22801 backedges. 0 proven. 22801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:08,382 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:08,382 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [153] total 153 [2019-05-23 09:30:08,382 INFO L146 ILogger]: Interpolant automaton has 154 states [2019-05-23 09:30:08,383 INFO L146 ILogger]: Constructing interpolant automaton starting with 154 interpolants. [2019-05-23 09:30:08,384 INFO L146 ILogger]: CoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2019-05-23 09:30:08,384 INFO L146 ILogger]: Start difference. First operand 309 states and 309 transitions. Second operand 154 states. [2019-05-23 09:30:09,001 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:09,002 INFO L146 ILogger]: Finished difference Result 312 states and 312 transitions. [2019-05-23 09:30:09,002 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2019-05-23 09:30:09,002 INFO L146 ILogger]: Start accepts. Automaton has 154 states. Word has length 308 [2019-05-23 09:30:09,002 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:09,003 INFO L146 ILogger]: With dead ends: 312 [2019-05-23 09:30:09,003 INFO L146 ILogger]: Without dead ends: 312 [2019-05-23 09:30:09,004 INFO L146 ILogger]: 0 DeclaredPredicates, 307 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=11781, Invalid=11781, Unknown=0, NotChecked=0, Total=23562 [2019-05-23 09:30:09,004 INFO L146 ILogger]: Start minimizeSevpa. Operand 312 states. [2019-05-23 09:30:09,006 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 312 to 311. [2019-05-23 09:30:09,006 INFO L146 ILogger]: Start removeUnreachable. Operand 311 states. [2019-05-23 09:30:09,006 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 311 states to 311 states and 311 transitions. [2019-05-23 09:30:09,007 INFO L146 ILogger]: Start accepts. Automaton has 311 states and 311 transitions. Word has length 308 [2019-05-23 09:30:09,007 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:09,007 INFO L146 ILogger]: Abstraction has 311 states and 311 transitions. [2019-05-23 09:30:09,007 INFO L146 ILogger]: Interpolant automaton has 154 states. [2019-05-23 09:30:09,007 INFO L146 ILogger]: Start isEmpty. Operand 311 states and 311 transitions. [2019-05-23 09:30:09,008 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 311 [2019-05-23 09:30:09,008 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:09,008 INFO L146 ILogger]: trace histogram [152, 152, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:09,009 INFO L146 ILogger]: === Iteration 153 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:09,009 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:09,009 INFO L146 ILogger]: Analyzing trace with hash -127584462, now seen corresponding path program 152 times [2019-05-23 09:30:09,009 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:09,034 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:09,038 INFO L146 ILogger]: Trace formula consists of 467 conjuncts, 154 conjunts are in the unsatisfiable core [2019-05-23 09:30:09,040 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:16,995 INFO L146 ILogger]: Checked inductivity of 23104 backedges. 0 proven. 23104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:16,996 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:16,996 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [154] total 154 [2019-05-23 09:30:16,996 INFO L146 ILogger]: Interpolant automaton has 155 states [2019-05-23 09:30:16,998 INFO L146 ILogger]: Constructing interpolant automaton starting with 155 interpolants. [2019-05-23 09:30:16,999 INFO L146 ILogger]: CoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2019-05-23 09:30:16,999 INFO L146 ILogger]: Start difference. First operand 311 states and 311 transitions. Second operand 155 states. [2019-05-23 09:30:17,686 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:17,687 INFO L146 ILogger]: Finished difference Result 314 states and 314 transitions. [2019-05-23 09:30:17,687 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2019-05-23 09:30:17,687 INFO L146 ILogger]: Start accepts. Automaton has 155 states. Word has length 310 [2019-05-23 09:30:17,687 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:17,688 INFO L146 ILogger]: With dead ends: 314 [2019-05-23 09:30:17,688 INFO L146 ILogger]: Without dead ends: 314 [2019-05-23 09:30:17,689 INFO L146 ILogger]: 0 DeclaredPredicates, 309 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=11935, Invalid=11935, Unknown=0, NotChecked=0, Total=23870 [2019-05-23 09:30:17,689 INFO L146 ILogger]: Start minimizeSevpa. Operand 314 states. [2019-05-23 09:30:17,690 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 314 to 313. [2019-05-23 09:30:17,690 INFO L146 ILogger]: Start removeUnreachable. Operand 313 states. [2019-05-23 09:30:17,690 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 313 states to 313 states and 313 transitions. [2019-05-23 09:30:17,691 INFO L146 ILogger]: Start accepts. Automaton has 313 states and 313 transitions. Word has length 310 [2019-05-23 09:30:17,691 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:17,691 INFO L146 ILogger]: Abstraction has 313 states and 313 transitions. [2019-05-23 09:30:17,691 INFO L146 ILogger]: Interpolant automaton has 155 states. [2019-05-23 09:30:17,691 INFO L146 ILogger]: Start isEmpty. Operand 313 states and 313 transitions. [2019-05-23 09:30:17,692 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 313 [2019-05-23 09:30:17,692 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:17,692 INFO L146 ILogger]: trace histogram [153, 153, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:17,692 INFO L146 ILogger]: === Iteration 154 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:17,692 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:17,692 INFO L146 ILogger]: Analyzing trace with hash -804923119, now seen corresponding path program 153 times [2019-05-23 09:30:17,693 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:17,713 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:17,717 INFO L146 ILogger]: Trace formula consists of 470 conjuncts, 155 conjunts are in the unsatisfiable core [2019-05-23 09:30:17,719 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:25,580 INFO L146 ILogger]: Checked inductivity of 23409 backedges. 0 proven. 23409 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:25,580 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:25,580 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [155] total 155 [2019-05-23 09:30:25,581 INFO L146 ILogger]: Interpolant automaton has 156 states [2019-05-23 09:30:25,582 INFO L146 ILogger]: Constructing interpolant automaton starting with 156 interpolants. [2019-05-23 09:30:25,583 INFO L146 ILogger]: CoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2019-05-23 09:30:25,583 INFO L146 ILogger]: Start difference. First operand 313 states and 313 transitions. Second operand 156 states. [2019-05-23 09:30:26,261 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:26,261 INFO L146 ILogger]: Finished difference Result 316 states and 316 transitions. [2019-05-23 09:30:26,262 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2019-05-23 09:30:26,262 INFO L146 ILogger]: Start accepts. Automaton has 156 states. Word has length 312 [2019-05-23 09:30:26,262 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:26,262 INFO L146 ILogger]: With dead ends: 316 [2019-05-23 09:30:26,263 INFO L146 ILogger]: Without dead ends: 316 [2019-05-23 09:30:26,263 INFO L146 ILogger]: 0 DeclaredPredicates, 311 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=12090, Invalid=12090, Unknown=0, NotChecked=0, Total=24180 [2019-05-23 09:30:26,263 INFO L146 ILogger]: Start minimizeSevpa. Operand 316 states. [2019-05-23 09:30:26,264 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 316 to 315. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Start removeUnreachable. Operand 315 states. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 315 states to 315 states and 315 transitions. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Start accepts. Automaton has 315 states and 315 transitions. Word has length 312 [2019-05-23 09:30:26,265 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Abstraction has 315 states and 315 transitions. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Interpolant automaton has 156 states. [2019-05-23 09:30:26,265 INFO L146 ILogger]: Start isEmpty. Operand 315 states and 315 transitions. [2019-05-23 09:30:26,266 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 315 [2019-05-23 09:30:26,266 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:26,267 INFO L146 ILogger]: trace histogram [154, 154, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:26,267 INFO L146 ILogger]: === Iteration 155 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:26,267 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:26,267 INFO L146 ILogger]: Analyzing trace with hash 1107656496, now seen corresponding path program 154 times [2019-05-23 09:30:26,268 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:26,285 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:26,288 INFO L146 ILogger]: Trace formula consists of 473 conjuncts, 156 conjunts are in the unsatisfiable core [2019-05-23 09:30:26,289 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:34,509 INFO L146 ILogger]: Checked inductivity of 23716 backedges. 0 proven. 23716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:34,510 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:34,510 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [156] total 156 [2019-05-23 09:30:34,510 INFO L146 ILogger]: Interpolant automaton has 157 states [2019-05-23 09:30:34,511 INFO L146 ILogger]: Constructing interpolant automaton starting with 157 interpolants. [2019-05-23 09:30:34,511 INFO L146 ILogger]: CoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2019-05-23 09:30:34,512 INFO L146 ILogger]: Start difference. First operand 315 states and 315 transitions. Second operand 157 states. [2019-05-23 09:30:35,154 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:35,155 INFO L146 ILogger]: Finished difference Result 318 states and 318 transitions. [2019-05-23 09:30:35,155 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2019-05-23 09:30:35,155 INFO L146 ILogger]: Start accepts. Automaton has 157 states. Word has length 314 [2019-05-23 09:30:35,155 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:35,156 INFO L146 ILogger]: With dead ends: 318 [2019-05-23 09:30:35,156 INFO L146 ILogger]: Without dead ends: 318 [2019-05-23 09:30:35,157 INFO L146 ILogger]: 0 DeclaredPredicates, 313 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=12246, Invalid=12246, Unknown=0, NotChecked=0, Total=24492 [2019-05-23 09:30:35,157 INFO L146 ILogger]: Start minimizeSevpa. Operand 318 states. [2019-05-23 09:30:35,159 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 318 to 317. [2019-05-23 09:30:35,159 INFO L146 ILogger]: Start removeUnreachable. Operand 317 states. [2019-05-23 09:30:35,159 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 317 states to 317 states and 317 transitions. [2019-05-23 09:30:35,159 INFO L146 ILogger]: Start accepts. Automaton has 317 states and 317 transitions. Word has length 314 [2019-05-23 09:30:35,160 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:35,160 INFO L146 ILogger]: Abstraction has 317 states and 317 transitions. [2019-05-23 09:30:35,160 INFO L146 ILogger]: Interpolant automaton has 157 states. [2019-05-23 09:30:35,160 INFO L146 ILogger]: Start isEmpty. Operand 317 states and 317 transitions. [2019-05-23 09:30:35,161 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 317 [2019-05-23 09:30:35,161 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:35,161 INFO L146 ILogger]: trace histogram [155, 155, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:35,161 INFO L146 ILogger]: === Iteration 156 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:35,161 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:35,161 INFO L146 ILogger]: Analyzing trace with hash 850663823, now seen corresponding path program 155 times [2019-05-23 09:30:35,162 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:35,176 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:35,179 INFO L146 ILogger]: Trace formula consists of 476 conjuncts, 157 conjunts are in the unsatisfiable core [2019-05-23 09:30:35,180 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:43,461 INFO L146 ILogger]: Checked inductivity of 24025 backedges. 0 proven. 24025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:43,462 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:43,462 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [157] total 157 [2019-05-23 09:30:43,463 INFO L146 ILogger]: Interpolant automaton has 158 states [2019-05-23 09:30:43,465 INFO L146 ILogger]: Constructing interpolant automaton starting with 158 interpolants. [2019-05-23 09:30:43,466 INFO L146 ILogger]: CoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2019-05-23 09:30:43,466 INFO L146 ILogger]: Start difference. First operand 317 states and 317 transitions. Second operand 158 states. [2019-05-23 09:30:44,111 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:44,112 INFO L146 ILogger]: Finished difference Result 320 states and 320 transitions. [2019-05-23 09:30:44,112 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 158 states. [2019-05-23 09:30:44,112 INFO L146 ILogger]: Start accepts. Automaton has 158 states. Word has length 316 [2019-05-23 09:30:44,113 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:44,113 INFO L146 ILogger]: With dead ends: 320 [2019-05-23 09:30:44,113 INFO L146 ILogger]: Without dead ends: 320 [2019-05-23 09:30:44,114 INFO L146 ILogger]: 0 DeclaredPredicates, 315 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=12403, Invalid=12403, Unknown=0, NotChecked=0, Total=24806 [2019-05-23 09:30:44,114 INFO L146 ILogger]: Start minimizeSevpa. Operand 320 states. [2019-05-23 09:30:44,117 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 320 to 319. [2019-05-23 09:30:44,117 INFO L146 ILogger]: Start removeUnreachable. Operand 319 states. [2019-05-23 09:30:44,117 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 319 states to 319 states and 319 transitions. [2019-05-23 09:30:44,117 INFO L146 ILogger]: Start accepts. Automaton has 319 states and 319 transitions. Word has length 316 [2019-05-23 09:30:44,118 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:44,118 INFO L146 ILogger]: Abstraction has 319 states and 319 transitions. [2019-05-23 09:30:44,118 INFO L146 ILogger]: Interpolant automaton has 158 states. [2019-05-23 09:30:44,118 INFO L146 ILogger]: Start isEmpty. Operand 319 states and 319 transitions. [2019-05-23 09:30:44,119 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 319 [2019-05-23 09:30:44,119 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:44,119 INFO L146 ILogger]: trace histogram [156, 156, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:44,120 INFO L146 ILogger]: === Iteration 157 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:44,120 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:44,120 INFO L146 ILogger]: Analyzing trace with hash -1306159058, now seen corresponding path program 156 times [2019-05-23 09:30:44,120 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:44,146 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:44,150 INFO L146 ILogger]: Trace formula consists of 479 conjuncts, 158 conjunts are in the unsatisfiable core [2019-05-23 09:30:44,153 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:30:52,814 INFO L146 ILogger]: Checked inductivity of 24336 backedges. 0 proven. 24336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:30:52,815 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:30:52,815 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [158] total 158 [2019-05-23 09:30:52,815 INFO L146 ILogger]: Interpolant automaton has 159 states [2019-05-23 09:30:52,816 INFO L146 ILogger]: Constructing interpolant automaton starting with 159 interpolants. [2019-05-23 09:30:52,817 INFO L146 ILogger]: CoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2019-05-23 09:30:52,817 INFO L146 ILogger]: Start difference. First operand 319 states and 319 transitions. Second operand 159 states. [2019-05-23 09:30:53,541 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:30:53,541 INFO L146 ILogger]: Finished difference Result 322 states and 322 transitions. [2019-05-23 09:30:53,541 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2019-05-23 09:30:53,542 INFO L146 ILogger]: Start accepts. Automaton has 159 states. Word has length 318 [2019-05-23 09:30:53,542 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:30:53,543 INFO L146 ILogger]: With dead ends: 322 [2019-05-23 09:30:53,543 INFO L146 ILogger]: Without dead ends: 322 [2019-05-23 09:30:53,544 INFO L146 ILogger]: 0 DeclaredPredicates, 317 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=12561, Invalid=12561, Unknown=0, NotChecked=0, Total=25122 [2019-05-23 09:30:53,545 INFO L146 ILogger]: Start minimizeSevpa. Operand 322 states. [2019-05-23 09:30:53,546 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 322 to 321. [2019-05-23 09:30:53,546 INFO L146 ILogger]: Start removeUnreachable. Operand 321 states. [2019-05-23 09:30:53,547 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2019-05-23 09:30:53,547 INFO L146 ILogger]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 318 [2019-05-23 09:30:53,547 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:30:53,547 INFO L146 ILogger]: Abstraction has 321 states and 321 transitions. [2019-05-23 09:30:53,548 INFO L146 ILogger]: Interpolant automaton has 159 states. [2019-05-23 09:30:53,548 INFO L146 ILogger]: Start isEmpty. Operand 321 states and 321 transitions. [2019-05-23 09:30:53,549 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 321 [2019-05-23 09:30:53,549 INFO L146 ILogger]: Found error trace [2019-05-23 09:30:53,549 INFO L146 ILogger]: trace histogram [157, 157, 1, 1, 1, 1, 1, 1] [2019-05-23 09:30:53,549 INFO L146 ILogger]: === Iteration 158 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:30:53,549 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:30:53,550 INFO L146 ILogger]: Analyzing trace with hash 456256269, now seen corresponding path program 157 times [2019-05-23 09:30:53,550 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:30:53,577 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:30:53,582 INFO L146 ILogger]: Trace formula consists of 482 conjuncts, 159 conjunts are in the unsatisfiable core [2019-05-23 09:30:53,585 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:02,144 INFO L146 ILogger]: Checked inductivity of 24649 backedges. 0 proven. 24649 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:02,145 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:02,145 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [159] total 159 [2019-05-23 09:31:02,145 INFO L146 ILogger]: Interpolant automaton has 160 states [2019-05-23 09:31:02,146 INFO L146 ILogger]: Constructing interpolant automaton starting with 160 interpolants. [2019-05-23 09:31:02,147 INFO L146 ILogger]: CoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2019-05-23 09:31:02,147 INFO L146 ILogger]: Start difference. First operand 321 states and 321 transitions. Second operand 160 states. [2019-05-23 09:31:02,833 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:02,834 INFO L146 ILogger]: Finished difference Result 324 states and 324 transitions. [2019-05-23 09:31:02,834 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2019-05-23 09:31:02,834 INFO L146 ILogger]: Start accepts. Automaton has 160 states. Word has length 320 [2019-05-23 09:31:02,835 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:02,835 INFO L146 ILogger]: With dead ends: 324 [2019-05-23 09:31:02,835 INFO L146 ILogger]: Without dead ends: 324 [2019-05-23 09:31:02,837 INFO L146 ILogger]: 0 DeclaredPredicates, 319 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=12720, Invalid=12720, Unknown=0, NotChecked=0, Total=25440 [2019-05-23 09:31:02,837 INFO L146 ILogger]: Start minimizeSevpa. Operand 324 states. [2019-05-23 09:31:02,838 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 324 to 323. [2019-05-23 09:31:02,838 INFO L146 ILogger]: Start removeUnreachable. Operand 323 states. [2019-05-23 09:31:02,839 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 323 states to 323 states and 323 transitions. [2019-05-23 09:31:02,839 INFO L146 ILogger]: Start accepts. Automaton has 323 states and 323 transitions. Word has length 320 [2019-05-23 09:31:02,839 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:02,839 INFO L146 ILogger]: Abstraction has 323 states and 323 transitions. [2019-05-23 09:31:02,839 INFO L146 ILogger]: Interpolant automaton has 160 states. [2019-05-23 09:31:02,839 INFO L146 ILogger]: Start isEmpty. Operand 323 states and 323 transitions. [2019-05-23 09:31:02,840 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 323 [2019-05-23 09:31:02,840 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:02,840 INFO L146 ILogger]: trace histogram [158, 158, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:02,840 INFO L146 ILogger]: === Iteration 159 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:02,840 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:02,840 INFO L146 ILogger]: Analyzing trace with hash 1920270892, now seen corresponding path program 158 times [2019-05-23 09:31:02,841 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:02,857 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:02,860 INFO L146 ILogger]: Trace formula consists of 485 conjuncts, 160 conjunts are in the unsatisfiable core [2019-05-23 09:31:02,861 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:11,533 INFO L146 ILogger]: Checked inductivity of 24964 backedges. 0 proven. 24964 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:11,533 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:11,533 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [160] total 160 [2019-05-23 09:31:11,533 INFO L146 ILogger]: Interpolant automaton has 161 states [2019-05-23 09:31:11,535 INFO L146 ILogger]: Constructing interpolant automaton starting with 161 interpolants. [2019-05-23 09:31:11,535 INFO L146 ILogger]: CoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2019-05-23 09:31:11,535 INFO L146 ILogger]: Start difference. First operand 323 states and 323 transitions. Second operand 161 states. [2019-05-23 09:31:12,238 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:12,238 INFO L146 ILogger]: Finished difference Result 326 states and 326 transitions. [2019-05-23 09:31:12,238 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2019-05-23 09:31:12,238 INFO L146 ILogger]: Start accepts. Automaton has 161 states. Word has length 322 [2019-05-23 09:31:12,238 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:12,239 INFO L146 ILogger]: With dead ends: 326 [2019-05-23 09:31:12,239 INFO L146 ILogger]: Without dead ends: 326 [2019-05-23 09:31:12,240 INFO L146 ILogger]: 0 DeclaredPredicates, 321 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=12880, Invalid=12880, Unknown=0, NotChecked=0, Total=25760 [2019-05-23 09:31:12,241 INFO L146 ILogger]: Start minimizeSevpa. Operand 326 states. [2019-05-23 09:31:12,242 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 326 to 325. [2019-05-23 09:31:12,243 INFO L146 ILogger]: Start removeUnreachable. Operand 325 states. [2019-05-23 09:31:12,243 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 325 states to 325 states and 325 transitions. [2019-05-23 09:31:12,243 INFO L146 ILogger]: Start accepts. Automaton has 325 states and 325 transitions. Word has length 322 [2019-05-23 09:31:12,243 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:12,244 INFO L146 ILogger]: Abstraction has 325 states and 325 transitions. [2019-05-23 09:31:12,244 INFO L146 ILogger]: Interpolant automaton has 161 states. [2019-05-23 09:31:12,244 INFO L146 ILogger]: Start isEmpty. Operand 325 states and 325 transitions. [2019-05-23 09:31:12,245 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 325 [2019-05-23 09:31:12,245 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:12,245 INFO L146 ILogger]: trace histogram [159, 159, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:12,245 INFO L146 ILogger]: === Iteration 160 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:12,245 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:12,245 INFO L146 ILogger]: Analyzing trace with hash 89050507, now seen corresponding path program 159 times [2019-05-23 09:31:12,246 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:12,272 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:12,276 INFO L146 ILogger]: Trace formula consists of 488 conjuncts, 161 conjunts are in the unsatisfiable core [2019-05-23 09:31:12,278 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:21,023 INFO L146 ILogger]: Checked inductivity of 25281 backedges. 0 proven. 25281 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:21,023 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:21,023 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [161] total 161 [2019-05-23 09:31:21,023 INFO L146 ILogger]: Interpolant automaton has 162 states [2019-05-23 09:31:21,024 INFO L146 ILogger]: Constructing interpolant automaton starting with 162 interpolants. [2019-05-23 09:31:21,025 INFO L146 ILogger]: CoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2019-05-23 09:31:21,025 INFO L146 ILogger]: Start difference. First operand 325 states and 325 transitions. Second operand 162 states. [2019-05-23 09:31:21,726 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:21,726 INFO L146 ILogger]: Finished difference Result 328 states and 328 transitions. [2019-05-23 09:31:21,726 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2019-05-23 09:31:21,726 INFO L146 ILogger]: Start accepts. Automaton has 162 states. Word has length 324 [2019-05-23 09:31:21,727 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:21,727 INFO L146 ILogger]: With dead ends: 328 [2019-05-23 09:31:21,727 INFO L146 ILogger]: Without dead ends: 328 [2019-05-23 09:31:21,728 INFO L146 ILogger]: 0 DeclaredPredicates, 323 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=13041, Invalid=13041, Unknown=0, NotChecked=0, Total=26082 [2019-05-23 09:31:21,729 INFO L146 ILogger]: Start minimizeSevpa. Operand 328 states. [2019-05-23 09:31:21,730 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 328 to 327. [2019-05-23 09:31:21,730 INFO L146 ILogger]: Start removeUnreachable. Operand 327 states. [2019-05-23 09:31:21,731 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 327 states to 327 states and 327 transitions. [2019-05-23 09:31:21,731 INFO L146 ILogger]: Start accepts. Automaton has 327 states and 327 transitions. Word has length 324 [2019-05-23 09:31:21,731 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:21,731 INFO L146 ILogger]: Abstraction has 327 states and 327 transitions. [2019-05-23 09:31:21,731 INFO L146 ILogger]: Interpolant automaton has 162 states. [2019-05-23 09:31:21,731 INFO L146 ILogger]: Start isEmpty. Operand 327 states and 327 transitions. [2019-05-23 09:31:21,732 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 327 [2019-05-23 09:31:21,732 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:21,732 INFO L146 ILogger]: trace histogram [160, 160, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:21,732 INFO L146 ILogger]: === Iteration 161 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:21,733 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:21,733 INFO L146 ILogger]: Analyzing trace with hash 1222851882, now seen corresponding path program 160 times [2019-05-23 09:31:21,733 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:21,749 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:21,752 INFO L146 ILogger]: Trace formula consists of 491 conjuncts, 162 conjunts are in the unsatisfiable core [2019-05-23 09:31:21,754 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:30,541 INFO L146 ILogger]: Checked inductivity of 25600 backedges. 0 proven. 25600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:30,541 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:30,541 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [162] total 162 [2019-05-23 09:31:30,541 INFO L146 ILogger]: Interpolant automaton has 163 states [2019-05-23 09:31:30,543 INFO L146 ILogger]: Constructing interpolant automaton starting with 163 interpolants. [2019-05-23 09:31:30,543 INFO L146 ILogger]: CoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2019-05-23 09:31:30,543 INFO L146 ILogger]: Start difference. First operand 327 states and 327 transitions. Second operand 163 states. [2019-05-23 09:31:31,263 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:31,263 INFO L146 ILogger]: Finished difference Result 330 states and 330 transitions. [2019-05-23 09:31:31,263 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2019-05-23 09:31:31,263 INFO L146 ILogger]: Start accepts. Automaton has 163 states. Word has length 326 [2019-05-23 09:31:31,264 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:31,264 INFO L146 ILogger]: With dead ends: 330 [2019-05-23 09:31:31,264 INFO L146 ILogger]: Without dead ends: 330 [2019-05-23 09:31:31,265 INFO L146 ILogger]: 0 DeclaredPredicates, 325 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=13203, Invalid=13203, Unknown=0, NotChecked=0, Total=26406 [2019-05-23 09:31:31,265 INFO L146 ILogger]: Start minimizeSevpa. Operand 330 states. [2019-05-23 09:31:31,267 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 330 to 329. [2019-05-23 09:31:31,267 INFO L146 ILogger]: Start removeUnreachable. Operand 329 states. [2019-05-23 09:31:31,268 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 329 states to 329 states and 329 transitions. [2019-05-23 09:31:31,269 INFO L146 ILogger]: Start accepts. Automaton has 329 states and 329 transitions. Word has length 326 [2019-05-23 09:31:31,269 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:31,269 INFO L146 ILogger]: Abstraction has 329 states and 329 transitions. [2019-05-23 09:31:31,269 INFO L146 ILogger]: Interpolant automaton has 163 states. [2019-05-23 09:31:31,269 INFO L146 ILogger]: Start isEmpty. Operand 329 states and 329 transitions. [2019-05-23 09:31:31,270 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 329 [2019-05-23 09:31:31,270 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:31,271 INFO L146 ILogger]: trace histogram [161, 161, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:31,271 INFO L146 ILogger]: === Iteration 162 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:31,271 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:31,271 INFO L146 ILogger]: Analyzing trace with hash -115719927, now seen corresponding path program 161 times [2019-05-23 09:31:31,272 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:31,293 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:31,296 INFO L146 ILogger]: Trace formula consists of 494 conjuncts, 163 conjunts are in the unsatisfiable core [2019-05-23 09:31:31,298 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:40,356 INFO L146 ILogger]: Checked inductivity of 25921 backedges. 0 proven. 25921 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:40,356 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:40,356 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [163] total 163 [2019-05-23 09:31:40,357 INFO L146 ILogger]: Interpolant automaton has 164 states [2019-05-23 09:31:40,358 INFO L146 ILogger]: Constructing interpolant automaton starting with 164 interpolants. [2019-05-23 09:31:40,359 INFO L146 ILogger]: CoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2019-05-23 09:31:40,359 INFO L146 ILogger]: Start difference. First operand 329 states and 329 transitions. Second operand 164 states. [2019-05-23 09:31:41,069 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:41,069 INFO L146 ILogger]: Finished difference Result 332 states and 332 transitions. [2019-05-23 09:31:41,070 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2019-05-23 09:31:41,070 INFO L146 ILogger]: Start accepts. Automaton has 164 states. Word has length 328 [2019-05-23 09:31:41,070 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:41,071 INFO L146 ILogger]: With dead ends: 332 [2019-05-23 09:31:41,071 INFO L146 ILogger]: Without dead ends: 332 [2019-05-23 09:31:41,072 INFO L146 ILogger]: 0 DeclaredPredicates, 327 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=13366, Invalid=13366, Unknown=0, NotChecked=0, Total=26732 [2019-05-23 09:31:41,073 INFO L146 ILogger]: Start minimizeSevpa. Operand 332 states. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 332 to 331. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Start removeUnreachable. Operand 331 states. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 328 [2019-05-23 09:31:41,075 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Abstraction has 331 states and 331 transitions. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Interpolant automaton has 164 states. [2019-05-23 09:31:41,075 INFO L146 ILogger]: Start isEmpty. Operand 331 states and 331 transitions. [2019-05-23 09:31:41,076 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 331 [2019-05-23 09:31:41,076 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:41,076 INFO L146 ILogger]: trace histogram [162, 162, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:41,077 INFO L146 ILogger]: === Iteration 163 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:41,077 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:41,077 INFO L146 ILogger]: Analyzing trace with hash 2006960424, now seen corresponding path program 162 times [2019-05-23 09:31:41,077 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:41,094 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:41,097 INFO L146 ILogger]: Trace formula consists of 497 conjuncts, 164 conjunts are in the unsatisfiable core [2019-05-23 09:31:41,100 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:31:50,360 INFO L146 ILogger]: Checked inductivity of 26244 backedges. 0 proven. 26244 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:31:50,361 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:31:50,361 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [164] total 164 [2019-05-23 09:31:50,361 INFO L146 ILogger]: Interpolant automaton has 165 states [2019-05-23 09:31:50,362 INFO L146 ILogger]: Constructing interpolant automaton starting with 165 interpolants. [2019-05-23 09:31:50,363 INFO L146 ILogger]: CoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2019-05-23 09:31:50,363 INFO L146 ILogger]: Start difference. First operand 331 states and 331 transitions. Second operand 165 states. [2019-05-23 09:31:51,091 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:31:51,092 INFO L146 ILogger]: Finished difference Result 334 states and 334 transitions. [2019-05-23 09:31:51,092 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2019-05-23 09:31:51,092 INFO L146 ILogger]: Start accepts. Automaton has 165 states. Word has length 330 [2019-05-23 09:31:51,093 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:31:51,093 INFO L146 ILogger]: With dead ends: 334 [2019-05-23 09:31:51,093 INFO L146 ILogger]: Without dead ends: 334 [2019-05-23 09:31:51,095 INFO L146 ILogger]: 0 DeclaredPredicates, 329 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=13530, Invalid=13530, Unknown=0, NotChecked=0, Total=27060 [2019-05-23 09:31:51,095 INFO L146 ILogger]: Start minimizeSevpa. Operand 334 states. [2019-05-23 09:31:51,096 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 334 to 333. [2019-05-23 09:31:51,097 INFO L146 ILogger]: Start removeUnreachable. Operand 333 states. [2019-05-23 09:31:51,097 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 333 states to 333 states and 333 transitions. [2019-05-23 09:31:51,097 INFO L146 ILogger]: Start accepts. Automaton has 333 states and 333 transitions. Word has length 330 [2019-05-23 09:31:51,097 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:31:51,098 INFO L146 ILogger]: Abstraction has 333 states and 333 transitions. [2019-05-23 09:31:51,098 INFO L146 ILogger]: Interpolant automaton has 165 states. [2019-05-23 09:31:51,098 INFO L146 ILogger]: Start isEmpty. Operand 333 states and 333 transitions. [2019-05-23 09:31:51,099 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 333 [2019-05-23 09:31:51,099 INFO L146 ILogger]: Found error trace [2019-05-23 09:31:51,099 INFO L146 ILogger]: trace histogram [163, 163, 1, 1, 1, 1, 1, 1] [2019-05-23 09:31:51,099 INFO L146 ILogger]: === Iteration 164 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:31:51,099 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:31:51,099 INFO L146 ILogger]: Analyzing trace with hash 1793312135, now seen corresponding path program 163 times [2019-05-23 09:31:51,099 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:31:51,116 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:31:51,119 INFO L146 ILogger]: Trace formula consists of 500 conjuncts, 165 conjunts are in the unsatisfiable core [2019-05-23 09:31:51,120 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:00,265 INFO L146 ILogger]: Checked inductivity of 26569 backedges. 0 proven. 26569 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:00,265 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:00,265 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [165] total 165 [2019-05-23 09:32:00,266 INFO L146 ILogger]: Interpolant automaton has 166 states [2019-05-23 09:32:00,267 INFO L146 ILogger]: Constructing interpolant automaton starting with 166 interpolants. [2019-05-23 09:32:00,267 INFO L146 ILogger]: CoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2019-05-23 09:32:00,267 INFO L146 ILogger]: Start difference. First operand 333 states and 333 transitions. Second operand 166 states. [2019-05-23 09:32:00,998 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:00,998 INFO L146 ILogger]: Finished difference Result 336 states and 336 transitions. [2019-05-23 09:32:00,998 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2019-05-23 09:32:00,998 INFO L146 ILogger]: Start accepts. Automaton has 166 states. Word has length 332 [2019-05-23 09:32:00,999 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:00,999 INFO L146 ILogger]: With dead ends: 336 [2019-05-23 09:32:00,999 INFO L146 ILogger]: Without dead ends: 336 [2019-05-23 09:32:01,000 INFO L146 ILogger]: 0 DeclaredPredicates, 331 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=13695, Invalid=13695, Unknown=0, NotChecked=0, Total=27390 [2019-05-23 09:32:01,000 INFO L146 ILogger]: Start minimizeSevpa. Operand 336 states. [2019-05-23 09:32:01,002 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 336 to 335. [2019-05-23 09:32:01,002 INFO L146 ILogger]: Start removeUnreachable. Operand 335 states. [2019-05-23 09:32:01,003 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2019-05-23 09:32:01,003 INFO L146 ILogger]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 332 [2019-05-23 09:32:01,003 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:01,003 INFO L146 ILogger]: Abstraction has 335 states and 335 transitions. [2019-05-23 09:32:01,003 INFO L146 ILogger]: Interpolant automaton has 166 states. [2019-05-23 09:32:01,003 INFO L146 ILogger]: Start isEmpty. Operand 335 states and 335 transitions. [2019-05-23 09:32:01,005 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 335 [2019-05-23 09:32:01,005 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:01,005 INFO L146 ILogger]: trace histogram [164, 164, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:01,005 INFO L146 ILogger]: === Iteration 165 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:01,005 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:01,005 INFO L146 ILogger]: Analyzing trace with hash -1659230682, now seen corresponding path program 164 times [2019-05-23 09:32:01,006 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:01,034 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:01,040 INFO L146 ILogger]: Trace formula consists of 503 conjuncts, 166 conjunts are in the unsatisfiable core [2019-05-23 09:32:01,044 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:10,222 INFO L146 ILogger]: Checked inductivity of 26896 backedges. 0 proven. 26896 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:10,222 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:10,223 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [166] total 166 [2019-05-23 09:32:10,223 INFO L146 ILogger]: Interpolant automaton has 167 states [2019-05-23 09:32:10,224 INFO L146 ILogger]: Constructing interpolant automaton starting with 167 interpolants. [2019-05-23 09:32:10,225 INFO L146 ILogger]: CoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2019-05-23 09:32:10,225 INFO L146 ILogger]: Start difference. First operand 335 states and 335 transitions. Second operand 167 states. [2019-05-23 09:32:10,940 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:10,941 INFO L146 ILogger]: Finished difference Result 338 states and 338 transitions. [2019-05-23 09:32:10,941 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2019-05-23 09:32:10,941 INFO L146 ILogger]: Start accepts. Automaton has 167 states. Word has length 334 [2019-05-23 09:32:10,942 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:10,942 INFO L146 ILogger]: With dead ends: 338 [2019-05-23 09:32:10,942 INFO L146 ILogger]: Without dead ends: 338 [2019-05-23 09:32:10,943 INFO L146 ILogger]: 0 DeclaredPredicates, 333 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=13861, Invalid=13861, Unknown=0, NotChecked=0, Total=27722 [2019-05-23 09:32:10,943 INFO L146 ILogger]: Start minimizeSevpa. Operand 338 states. [2019-05-23 09:32:10,945 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 338 to 337. [2019-05-23 09:32:10,945 INFO L146 ILogger]: Start removeUnreachable. Operand 337 states. [2019-05-23 09:32:10,945 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 337 states to 337 states and 337 transitions. [2019-05-23 09:32:10,946 INFO L146 ILogger]: Start accepts. Automaton has 337 states and 337 transitions. Word has length 334 [2019-05-23 09:32:10,946 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:10,946 INFO L146 ILogger]: Abstraction has 337 states and 337 transitions. [2019-05-23 09:32:10,946 INFO L146 ILogger]: Interpolant automaton has 167 states. [2019-05-23 09:32:10,946 INFO L146 ILogger]: Start isEmpty. Operand 337 states and 337 transitions. [2019-05-23 09:32:10,947 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 337 [2019-05-23 09:32:10,947 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:10,947 INFO L146 ILogger]: trace histogram [165, 165, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:10,948 INFO L146 ILogger]: === Iteration 166 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:10,948 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:10,948 INFO L146 ILogger]: Analyzing trace with hash 456841989, now seen corresponding path program 165 times [2019-05-23 09:32:10,948 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:10,965 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:10,968 INFO L146 ILogger]: Trace formula consists of 506 conjuncts, 167 conjunts are in the unsatisfiable core [2019-05-23 09:32:10,970 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:20,526 INFO L146 ILogger]: Checked inductivity of 27225 backedges. 0 proven. 27225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:20,526 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:20,526 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [167] total 167 [2019-05-23 09:32:20,527 INFO L146 ILogger]: Interpolant automaton has 168 states [2019-05-23 09:32:20,528 INFO L146 ILogger]: Constructing interpolant automaton starting with 168 interpolants. [2019-05-23 09:32:20,528 INFO L146 ILogger]: CoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2019-05-23 09:32:20,528 INFO L146 ILogger]: Start difference. First operand 337 states and 337 transitions. Second operand 168 states. [2019-05-23 09:32:21,232 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:21,233 INFO L146 ILogger]: Finished difference Result 340 states and 340 transitions. [2019-05-23 09:32:21,233 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2019-05-23 09:32:21,233 INFO L146 ILogger]: Start accepts. Automaton has 168 states. Word has length 336 [2019-05-23 09:32:21,233 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:21,233 INFO L146 ILogger]: With dead ends: 340 [2019-05-23 09:32:21,234 INFO L146 ILogger]: Without dead ends: 340 [2019-05-23 09:32:21,234 INFO L146 ILogger]: 0 DeclaredPredicates, 335 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=14028, Invalid=14028, Unknown=0, NotChecked=0, Total=28056 [2019-05-23 09:32:21,234 INFO L146 ILogger]: Start minimizeSevpa. Operand 340 states. [2019-05-23 09:32:21,236 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 340 to 339. [2019-05-23 09:32:21,236 INFO L146 ILogger]: Start removeUnreachable. Operand 339 states. [2019-05-23 09:32:21,237 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 339 states to 339 states and 339 transitions. [2019-05-23 09:32:21,237 INFO L146 ILogger]: Start accepts. Automaton has 339 states and 339 transitions. Word has length 336 [2019-05-23 09:32:21,237 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:21,237 INFO L146 ILogger]: Abstraction has 339 states and 339 transitions. [2019-05-23 09:32:21,237 INFO L146 ILogger]: Interpolant automaton has 168 states. [2019-05-23 09:32:21,237 INFO L146 ILogger]: Start isEmpty. Operand 339 states and 339 transitions. [2019-05-23 09:32:21,238 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 339 [2019-05-23 09:32:21,238 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:21,238 INFO L146 ILogger]: trace histogram [166, 166, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:21,238 INFO L146 ILogger]: === Iteration 167 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:21,238 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:21,238 INFO L146 ILogger]: Analyzing trace with hash -1811819484, now seen corresponding path program 166 times [2019-05-23 09:32:21,239 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:21,258 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:21,261 INFO L146 ILogger]: Trace formula consists of 509 conjuncts, 168 conjunts are in the unsatisfiable core [2019-05-23 09:32:21,263 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:30,800 INFO L146 ILogger]: Checked inductivity of 27556 backedges. 0 proven. 27556 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:30,800 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:30,800 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [168] total 168 [2019-05-23 09:32:30,801 INFO L146 ILogger]: Interpolant automaton has 169 states [2019-05-23 09:32:30,802 INFO L146 ILogger]: Constructing interpolant automaton starting with 169 interpolants. [2019-05-23 09:32:30,802 INFO L146 ILogger]: CoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2019-05-23 09:32:30,802 INFO L146 ILogger]: Start difference. First operand 339 states and 339 transitions. Second operand 169 states. [2019-05-23 09:32:31,533 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:31,533 INFO L146 ILogger]: Finished difference Result 342 states and 342 transitions. [2019-05-23 09:32:31,534 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2019-05-23 09:32:31,534 INFO L146 ILogger]: Start accepts. Automaton has 169 states. Word has length 338 [2019-05-23 09:32:31,534 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:31,535 INFO L146 ILogger]: With dead ends: 342 [2019-05-23 09:32:31,535 INFO L146 ILogger]: Without dead ends: 342 [2019-05-23 09:32:31,535 INFO L146 ILogger]: 0 DeclaredPredicates, 337 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=14196, Invalid=14196, Unknown=0, NotChecked=0, Total=28392 [2019-05-23 09:32:31,536 INFO L146 ILogger]: Start minimizeSevpa. Operand 342 states. [2019-05-23 09:32:31,537 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 342 to 341. [2019-05-23 09:32:31,537 INFO L146 ILogger]: Start removeUnreachable. Operand 341 states. [2019-05-23 09:32:31,537 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2019-05-23 09:32:31,537 INFO L146 ILogger]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 338 [2019-05-23 09:32:31,537 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:31,537 INFO L146 ILogger]: Abstraction has 341 states and 341 transitions. [2019-05-23 09:32:31,538 INFO L146 ILogger]: Interpolant automaton has 169 states. [2019-05-23 09:32:31,538 INFO L146 ILogger]: Start isEmpty. Operand 341 states and 341 transitions. [2019-05-23 09:32:31,538 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 341 [2019-05-23 09:32:31,538 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:31,539 INFO L146 ILogger]: trace histogram [167, 167, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:31,539 INFO L146 ILogger]: === Iteration 168 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:31,539 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:31,539 INFO L146 ILogger]: Analyzing trace with hash -152108669, now seen corresponding path program 167 times [2019-05-23 09:32:31,539 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:31,557 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:31,560 INFO L146 ILogger]: Trace formula consists of 512 conjuncts, 169 conjunts are in the unsatisfiable core [2019-05-23 09:32:31,561 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:41,085 INFO L146 ILogger]: Checked inductivity of 27889 backedges. 0 proven. 27889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:41,085 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:41,085 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [169] total 169 [2019-05-23 09:32:41,085 INFO L146 ILogger]: Interpolant automaton has 170 states [2019-05-23 09:32:41,087 INFO L146 ILogger]: Constructing interpolant automaton starting with 170 interpolants. [2019-05-23 09:32:41,087 INFO L146 ILogger]: CoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2019-05-23 09:32:41,087 INFO L146 ILogger]: Start difference. First operand 341 states and 341 transitions. Second operand 170 states. [2019-05-23 09:32:41,870 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:41,871 INFO L146 ILogger]: Finished difference Result 344 states and 344 transitions. [2019-05-23 09:32:41,871 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 170 states. [2019-05-23 09:32:41,871 INFO L146 ILogger]: Start accepts. Automaton has 170 states. Word has length 340 [2019-05-23 09:32:41,871 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:41,872 INFO L146 ILogger]: With dead ends: 344 [2019-05-23 09:32:41,872 INFO L146 ILogger]: Without dead ends: 344 [2019-05-23 09:32:41,873 INFO L146 ILogger]: 0 DeclaredPredicates, 339 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=14365, Invalid=14365, Unknown=0, NotChecked=0, Total=28730 [2019-05-23 09:32:41,874 INFO L146 ILogger]: Start minimizeSevpa. Operand 344 states. [2019-05-23 09:32:41,875 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 344 to 343. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Start removeUnreachable. Operand 343 states. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 343 states to 343 states and 343 transitions. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Start accepts. Automaton has 343 states and 343 transitions. Word has length 340 [2019-05-23 09:32:41,876 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Abstraction has 343 states and 343 transitions. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Interpolant automaton has 170 states. [2019-05-23 09:32:41,876 INFO L146 ILogger]: Start isEmpty. Operand 343 states and 343 transitions. [2019-05-23 09:32:41,877 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 343 [2019-05-23 09:32:41,877 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:41,877 INFO L146 ILogger]: trace histogram [168, 168, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:41,878 INFO L146 ILogger]: === Iteration 169 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:41,878 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:41,878 INFO L146 ILogger]: Analyzing trace with hash 1397117730, now seen corresponding path program 168 times [2019-05-23 09:32:41,878 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:41,896 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:41,899 INFO L146 ILogger]: Trace formula consists of 515 conjuncts, 170 conjunts are in the unsatisfiable core [2019-05-23 09:32:41,900 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:32:51,599 INFO L146 ILogger]: Checked inductivity of 28224 backedges. 0 proven. 28224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:32:51,599 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:32:51,600 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [170] total 170 [2019-05-23 09:32:51,600 INFO L146 ILogger]: Interpolant automaton has 171 states [2019-05-23 09:32:51,601 INFO L146 ILogger]: Constructing interpolant automaton starting with 171 interpolants. [2019-05-23 09:32:51,602 INFO L146 ILogger]: CoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2019-05-23 09:32:51,602 INFO L146 ILogger]: Start difference. First operand 343 states and 343 transitions. Second operand 171 states. [2019-05-23 09:32:52,379 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:32:52,379 INFO L146 ILogger]: Finished difference Result 346 states and 346 transitions. [2019-05-23 09:32:52,379 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2019-05-23 09:32:52,379 INFO L146 ILogger]: Start accepts. Automaton has 171 states. Word has length 342 [2019-05-23 09:32:52,380 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:32:52,380 INFO L146 ILogger]: With dead ends: 346 [2019-05-23 09:32:52,380 INFO L146 ILogger]: Without dead ends: 346 [2019-05-23 09:32:52,381 INFO L146 ILogger]: 0 DeclaredPredicates, 341 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=14535, Invalid=14535, Unknown=0, NotChecked=0, Total=29070 [2019-05-23 09:32:52,382 INFO L146 ILogger]: Start minimizeSevpa. Operand 346 states. [2019-05-23 09:32:52,383 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 346 to 345. [2019-05-23 09:32:52,383 INFO L146 ILogger]: Start removeUnreachable. Operand 345 states. [2019-05-23 09:32:52,383 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 345 states to 345 states and 345 transitions. [2019-05-23 09:32:52,384 INFO L146 ILogger]: Start accepts. Automaton has 345 states and 345 transitions. Word has length 342 [2019-05-23 09:32:52,384 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:32:52,384 INFO L146 ILogger]: Abstraction has 345 states and 345 transitions. [2019-05-23 09:32:52,384 INFO L146 ILogger]: Interpolant automaton has 171 states. [2019-05-23 09:32:52,384 INFO L146 ILogger]: Start isEmpty. Operand 345 states and 345 transitions. [2019-05-23 09:32:52,385 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 345 [2019-05-23 09:32:52,385 INFO L146 ILogger]: Found error trace [2019-05-23 09:32:52,385 INFO L146 ILogger]: trace histogram [169, 169, 1, 1, 1, 1, 1, 1] [2019-05-23 09:32:52,385 INFO L146 ILogger]: === Iteration 170 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:32:52,385 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:32:52,386 INFO L146 ILogger]: Analyzing trace with hash -149964543, now seen corresponding path program 169 times [2019-05-23 09:32:52,386 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:32:52,408 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:32:52,412 INFO L146 ILogger]: Trace formula consists of 518 conjuncts, 171 conjunts are in the unsatisfiable core [2019-05-23 09:32:52,427 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:02,304 INFO L146 ILogger]: Checked inductivity of 28561 backedges. 0 proven. 28561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:02,304 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:02,304 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [171] total 171 [2019-05-23 09:33:02,305 INFO L146 ILogger]: Interpolant automaton has 172 states [2019-05-23 09:33:02,306 INFO L146 ILogger]: Constructing interpolant automaton starting with 172 interpolants. [2019-05-23 09:33:02,306 INFO L146 ILogger]: CoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2019-05-23 09:33:02,306 INFO L146 ILogger]: Start difference. First operand 345 states and 345 transitions. Second operand 172 states. [2019-05-23 09:33:03,076 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:03,077 INFO L146 ILogger]: Finished difference Result 348 states and 348 transitions. [2019-05-23 09:33:03,077 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2019-05-23 09:33:03,077 INFO L146 ILogger]: Start accepts. Automaton has 172 states. Word has length 344 [2019-05-23 09:33:03,078 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:03,078 INFO L146 ILogger]: With dead ends: 348 [2019-05-23 09:33:03,078 INFO L146 ILogger]: Without dead ends: 348 [2019-05-23 09:33:03,079 INFO L146 ILogger]: 0 DeclaredPredicates, 343 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=14706, Invalid=14706, Unknown=0, NotChecked=0, Total=29412 [2019-05-23 09:33:03,080 INFO L146 ILogger]: Start minimizeSevpa. Operand 348 states. [2019-05-23 09:33:03,081 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 348 to 347. [2019-05-23 09:33:03,081 INFO L146 ILogger]: Start removeUnreachable. Operand 347 states. [2019-05-23 09:33:03,081 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 347 states to 347 states and 347 transitions. [2019-05-23 09:33:03,082 INFO L146 ILogger]: Start accepts. Automaton has 347 states and 347 transitions. Word has length 344 [2019-05-23 09:33:03,082 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:03,082 INFO L146 ILogger]: Abstraction has 347 states and 347 transitions. [2019-05-23 09:33:03,082 INFO L146 ILogger]: Interpolant automaton has 172 states. [2019-05-23 09:33:03,082 INFO L146 ILogger]: Start isEmpty. Operand 347 states and 347 transitions. [2019-05-23 09:33:03,083 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 347 [2019-05-23 09:33:03,083 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:03,083 INFO L146 ILogger]: trace histogram [170, 170, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:03,083 INFO L146 ILogger]: === Iteration 171 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:03,083 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:03,083 INFO L146 ILogger]: Analyzing trace with hash -837344480, now seen corresponding path program 170 times [2019-05-23 09:33:03,084 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:03,102 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:03,106 INFO L146 ILogger]: Trace formula consists of 521 conjuncts, 172 conjunts are in the unsatisfiable core [2019-05-23 09:33:03,109 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:13,075 INFO L146 ILogger]: Checked inductivity of 28900 backedges. 0 proven. 28900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:13,076 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:13,076 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [172] total 172 [2019-05-23 09:33:13,076 INFO L146 ILogger]: Interpolant automaton has 173 states [2019-05-23 09:33:13,078 INFO L146 ILogger]: Constructing interpolant automaton starting with 173 interpolants. [2019-05-23 09:33:13,079 INFO L146 ILogger]: CoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2019-05-23 09:33:13,079 INFO L146 ILogger]: Start difference. First operand 347 states and 347 transitions. Second operand 173 states. [2019-05-23 09:33:13,864 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:13,864 INFO L146 ILogger]: Finished difference Result 350 states and 350 transitions. [2019-05-23 09:33:13,865 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2019-05-23 09:33:13,865 INFO L146 ILogger]: Start accepts. Automaton has 173 states. Word has length 346 [2019-05-23 09:33:13,865 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:13,865 INFO L146 ILogger]: With dead ends: 350 [2019-05-23 09:33:13,865 INFO L146 ILogger]: Without dead ends: 350 [2019-05-23 09:33:13,866 INFO L146 ILogger]: 0 DeclaredPredicates, 345 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=14878, Invalid=14878, Unknown=0, NotChecked=0, Total=29756 [2019-05-23 09:33:13,867 INFO L146 ILogger]: Start minimizeSevpa. Operand 350 states. [2019-05-23 09:33:13,868 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 350 to 349. [2019-05-23 09:33:13,868 INFO L146 ILogger]: Start removeUnreachable. Operand 349 states. [2019-05-23 09:33:13,869 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 349 states to 349 states and 349 transitions. [2019-05-23 09:33:13,869 INFO L146 ILogger]: Start accepts. Automaton has 349 states and 349 transitions. Word has length 346 [2019-05-23 09:33:13,869 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:13,869 INFO L146 ILogger]: Abstraction has 349 states and 349 transitions. [2019-05-23 09:33:13,869 INFO L146 ILogger]: Interpolant automaton has 173 states. [2019-05-23 09:33:13,869 INFO L146 ILogger]: Start isEmpty. Operand 349 states and 349 transitions. [2019-05-23 09:33:13,870 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 349 [2019-05-23 09:33:13,870 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:13,870 INFO L146 ILogger]: trace histogram [171, 171, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:13,870 INFO L146 ILogger]: === Iteration 172 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:13,870 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:13,870 INFO L146 ILogger]: Analyzing trace with hash 15499647, now seen corresponding path program 171 times [2019-05-23 09:33:13,871 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:13,889 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:13,892 INFO L146 ILogger]: Trace formula consists of 524 conjuncts, 173 conjunts are in the unsatisfiable core [2019-05-23 09:33:13,894 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:23,867 INFO L146 ILogger]: Checked inductivity of 29241 backedges. 0 proven. 29241 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:23,867 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:23,868 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [173] total 173 [2019-05-23 09:33:23,868 INFO L146 ILogger]: Interpolant automaton has 174 states [2019-05-23 09:33:23,869 INFO L146 ILogger]: Constructing interpolant automaton starting with 174 interpolants. [2019-05-23 09:33:23,870 INFO L146 ILogger]: CoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2019-05-23 09:33:23,870 INFO L146 ILogger]: Start difference. First operand 349 states and 349 transitions. Second operand 174 states. [2019-05-23 09:33:24,649 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:24,649 INFO L146 ILogger]: Finished difference Result 352 states and 352 transitions. [2019-05-23 09:33:24,649 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2019-05-23 09:33:24,650 INFO L146 ILogger]: Start accepts. Automaton has 174 states. Word has length 348 [2019-05-23 09:33:24,650 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:24,650 INFO L146 ILogger]: With dead ends: 352 [2019-05-23 09:33:24,650 INFO L146 ILogger]: Without dead ends: 352 [2019-05-23 09:33:24,651 INFO L146 ILogger]: 0 DeclaredPredicates, 347 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=15051, Invalid=15051, Unknown=0, NotChecked=0, Total=30102 [2019-05-23 09:33:24,652 INFO L146 ILogger]: Start minimizeSevpa. Operand 352 states. [2019-05-23 09:33:24,653 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 352 to 351. [2019-05-23 09:33:24,653 INFO L146 ILogger]: Start removeUnreachable. Operand 351 states. [2019-05-23 09:33:24,653 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2019-05-23 09:33:24,653 INFO L146 ILogger]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 348 [2019-05-23 09:33:24,653 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:24,654 INFO L146 ILogger]: Abstraction has 351 states and 351 transitions. [2019-05-23 09:33:24,654 INFO L146 ILogger]: Interpolant automaton has 174 states. [2019-05-23 09:33:24,654 INFO L146 ILogger]: Start isEmpty. Operand 351 states and 351 transitions. [2019-05-23 09:33:24,655 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 351 [2019-05-23 09:33:24,655 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:24,655 INFO L146 ILogger]: trace histogram [172, 172, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:24,655 INFO L146 ILogger]: === Iteration 173 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:24,655 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:24,655 INFO L146 ILogger]: Analyzing trace with hash -740047842, now seen corresponding path program 172 times [2019-05-23 09:33:24,656 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:24,674 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:24,677 INFO L146 ILogger]: Trace formula consists of 527 conjuncts, 174 conjunts are in the unsatisfiable core [2019-05-23 09:33:24,679 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:34,903 INFO L146 ILogger]: Checked inductivity of 29584 backedges. 0 proven. 29584 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:34,903 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:34,904 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [174] total 174 [2019-05-23 09:33:34,904 INFO L146 ILogger]: Interpolant automaton has 175 states [2019-05-23 09:33:34,905 INFO L146 ILogger]: Constructing interpolant automaton starting with 175 interpolants. [2019-05-23 09:33:34,905 INFO L146 ILogger]: CoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2019-05-23 09:33:34,905 INFO L146 ILogger]: Start difference. First operand 351 states and 351 transitions. Second operand 175 states. [2019-05-23 09:33:35,695 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:35,696 INFO L146 ILogger]: Finished difference Result 354 states and 354 transitions. [2019-05-23 09:33:35,696 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2019-05-23 09:33:35,696 INFO L146 ILogger]: Start accepts. Automaton has 175 states. Word has length 350 [2019-05-23 09:33:35,697 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:35,697 INFO L146 ILogger]: With dead ends: 354 [2019-05-23 09:33:35,697 INFO L146 ILogger]: Without dead ends: 354 [2019-05-23 09:33:35,697 INFO L146 ILogger]: 0 DeclaredPredicates, 349 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=15225, Invalid=15225, Unknown=0, NotChecked=0, Total=30450 [2019-05-23 09:33:35,698 INFO L146 ILogger]: Start minimizeSevpa. Operand 354 states. [2019-05-23 09:33:35,699 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 354 to 353. [2019-05-23 09:33:35,699 INFO L146 ILogger]: Start removeUnreachable. Operand 353 states. [2019-05-23 09:33:35,699 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 353 states to 353 states and 353 transitions. [2019-05-23 09:33:35,699 INFO L146 ILogger]: Start accepts. Automaton has 353 states and 353 transitions. Word has length 350 [2019-05-23 09:33:35,700 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:35,700 INFO L146 ILogger]: Abstraction has 353 states and 353 transitions. [2019-05-23 09:33:35,700 INFO L146 ILogger]: Interpolant automaton has 175 states. [2019-05-23 09:33:35,700 INFO L146 ILogger]: Start isEmpty. Operand 353 states and 353 transitions. [2019-05-23 09:33:35,701 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 353 [2019-05-23 09:33:35,701 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:35,701 INFO L146 ILogger]: trace histogram [173, 173, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:35,701 INFO L146 ILogger]: === Iteration 174 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:35,701 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:35,701 INFO L146 ILogger]: Analyzing trace with hash -971711747, now seen corresponding path program 173 times [2019-05-23 09:33:35,702 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:35,720 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:35,724 INFO L146 ILogger]: Trace formula consists of 530 conjuncts, 175 conjunts are in the unsatisfiable core [2019-05-23 09:33:35,725 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:45,886 INFO L146 ILogger]: Checked inductivity of 29929 backedges. 0 proven. 29929 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:45,886 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:45,886 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [175] total 175 [2019-05-23 09:33:45,887 INFO L146 ILogger]: Interpolant automaton has 176 states [2019-05-23 09:33:45,888 INFO L146 ILogger]: Constructing interpolant automaton starting with 176 interpolants. [2019-05-23 09:33:45,888 INFO L146 ILogger]: CoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2019-05-23 09:33:45,888 INFO L146 ILogger]: Start difference. First operand 353 states and 353 transitions. Second operand 176 states. [2019-05-23 09:33:46,674 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:46,675 INFO L146 ILogger]: Finished difference Result 356 states and 356 transitions. [2019-05-23 09:33:46,675 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2019-05-23 09:33:46,675 INFO L146 ILogger]: Start accepts. Automaton has 176 states. Word has length 352 [2019-05-23 09:33:46,676 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:46,676 INFO L146 ILogger]: With dead ends: 356 [2019-05-23 09:33:46,676 INFO L146 ILogger]: Without dead ends: 356 [2019-05-23 09:33:46,677 INFO L146 ILogger]: 0 DeclaredPredicates, 351 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=15400, Invalid=15400, Unknown=0, NotChecked=0, Total=30800 [2019-05-23 09:33:46,677 INFO L146 ILogger]: Start minimizeSevpa. Operand 356 states. [2019-05-23 09:33:46,679 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 356 to 355. [2019-05-23 09:33:46,679 INFO L146 ILogger]: Start removeUnreachable. Operand 355 states. [2019-05-23 09:33:46,679 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 355 states to 355 states and 355 transitions. [2019-05-23 09:33:46,679 INFO L146 ILogger]: Start accepts. Automaton has 355 states and 355 transitions. Word has length 352 [2019-05-23 09:33:46,680 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:46,680 INFO L146 ILogger]: Abstraction has 355 states and 355 transitions. [2019-05-23 09:33:46,680 INFO L146 ILogger]: Interpolant automaton has 176 states. [2019-05-23 09:33:46,680 INFO L146 ILogger]: Start isEmpty. Operand 355 states and 355 transitions. [2019-05-23 09:33:46,681 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 355 [2019-05-23 09:33:46,681 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:46,681 INFO L146 ILogger]: trace histogram [174, 174, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:46,682 INFO L146 ILogger]: === Iteration 175 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:46,682 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:46,682 INFO L146 ILogger]: Analyzing trace with hash -262425060, now seen corresponding path program 174 times [2019-05-23 09:33:46,682 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:46,701 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:46,705 INFO L146 ILogger]: Trace formula consists of 533 conjuncts, 176 conjunts are in the unsatisfiable core [2019-05-23 09:33:46,706 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:33:57,031 INFO L146 ILogger]: Checked inductivity of 30276 backedges. 0 proven. 30276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:33:57,032 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:33:57,032 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [176] total 176 [2019-05-23 09:33:57,032 INFO L146 ILogger]: Interpolant automaton has 177 states [2019-05-23 09:33:57,033 INFO L146 ILogger]: Constructing interpolant automaton starting with 177 interpolants. [2019-05-23 09:33:57,034 INFO L146 ILogger]: CoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2019-05-23 09:33:57,034 INFO L146 ILogger]: Start difference. First operand 355 states and 355 transitions. Second operand 177 states. [2019-05-23 09:33:57,924 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:33:57,924 INFO L146 ILogger]: Finished difference Result 358 states and 358 transitions. [2019-05-23 09:33:57,924 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 177 states. [2019-05-23 09:33:57,924 INFO L146 ILogger]: Start accepts. Automaton has 177 states. Word has length 354 [2019-05-23 09:33:57,925 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:33:57,925 INFO L146 ILogger]: With dead ends: 358 [2019-05-23 09:33:57,925 INFO L146 ILogger]: Without dead ends: 358 [2019-05-23 09:33:57,926 INFO L146 ILogger]: 0 DeclaredPredicates, 353 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=15576, Invalid=15576, Unknown=0, NotChecked=0, Total=31152 [2019-05-23 09:33:57,926 INFO L146 ILogger]: Start minimizeSevpa. Operand 358 states. [2019-05-23 09:33:57,927 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 358 to 357. [2019-05-23 09:33:57,927 INFO L146 ILogger]: Start removeUnreachable. Operand 357 states. [2019-05-23 09:33:57,928 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 357 states to 357 states and 357 transitions. [2019-05-23 09:33:57,928 INFO L146 ILogger]: Start accepts. Automaton has 357 states and 357 transitions. Word has length 354 [2019-05-23 09:33:57,928 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:33:57,928 INFO L146 ILogger]: Abstraction has 357 states and 357 transitions. [2019-05-23 09:33:57,928 INFO L146 ILogger]: Interpolant automaton has 177 states. [2019-05-23 09:33:57,928 INFO L146 ILogger]: Start isEmpty. Operand 357 states and 357 transitions. [2019-05-23 09:33:57,929 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 357 [2019-05-23 09:33:57,929 INFO L146 ILogger]: Found error trace [2019-05-23 09:33:57,929 INFO L146 ILogger]: trace histogram [175, 175, 1, 1, 1, 1, 1, 1] [2019-05-23 09:33:57,929 INFO L146 ILogger]: === Iteration 176 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:33:57,929 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:33:57,930 INFO L146 ILogger]: Analyzing trace with hash -1537718917, now seen corresponding path program 175 times [2019-05-23 09:33:57,930 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:33:57,949 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:33:57,953 INFO L146 ILogger]: Trace formula consists of 536 conjuncts, 177 conjunts are in the unsatisfiable core [2019-05-23 09:33:57,955 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:34:08,308 INFO L146 ILogger]: Checked inductivity of 30625 backedges. 0 proven. 30625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:34:08,308 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:34:08,309 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [177] total 177 [2019-05-23 09:34:08,309 INFO L146 ILogger]: Interpolant automaton has 178 states [2019-05-23 09:34:08,310 INFO L146 ILogger]: Constructing interpolant automaton starting with 178 interpolants. [2019-05-23 09:34:08,311 INFO L146 ILogger]: CoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2019-05-23 09:34:08,311 INFO L146 ILogger]: Start difference. First operand 357 states and 357 transitions. Second operand 178 states. [2019-05-23 09:34:09,151 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:34:09,151 INFO L146 ILogger]: Finished difference Result 360 states and 360 transitions. [2019-05-23 09:34:09,151 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2019-05-23 09:34:09,151 INFO L146 ILogger]: Start accepts. Automaton has 178 states. Word has length 356 [2019-05-23 09:34:09,152 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:34:09,152 INFO L146 ILogger]: With dead ends: 360 [2019-05-23 09:34:09,152 INFO L146 ILogger]: Without dead ends: 360 [2019-05-23 09:34:09,154 INFO L146 ILogger]: 0 DeclaredPredicates, 355 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=15753, Invalid=15753, Unknown=0, NotChecked=0, Total=31506 [2019-05-23 09:34:09,154 INFO L146 ILogger]: Start minimizeSevpa. Operand 360 states. [2019-05-23 09:34:09,155 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 360 to 359. [2019-05-23 09:34:09,155 INFO L146 ILogger]: Start removeUnreachable. Operand 359 states. [2019-05-23 09:34:09,156 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 359 states to 359 states and 359 transitions. [2019-05-23 09:34:09,156 INFO L146 ILogger]: Start accepts. Automaton has 359 states and 359 transitions. Word has length 356 [2019-05-23 09:34:09,156 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:34:09,156 INFO L146 ILogger]: Abstraction has 359 states and 359 transitions. [2019-05-23 09:34:09,156 INFO L146 ILogger]: Interpolant automaton has 178 states. [2019-05-23 09:34:09,156 INFO L146 ILogger]: Start isEmpty. Operand 359 states and 359 transitions. [2019-05-23 09:34:09,157 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 359 [2019-05-23 09:34:09,157 INFO L146 ILogger]: Found error trace [2019-05-23 09:34:09,158 INFO L146 ILogger]: trace histogram [176, 176, 1, 1, 1, 1, 1, 1] [2019-05-23 09:34:09,158 INFO L146 ILogger]: === Iteration 177 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:34:09,158 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:34:09,158 INFO L146 ILogger]: Analyzing trace with hash 1265531162, now seen corresponding path program 176 times [2019-05-23 09:34:09,158 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:34:09,177 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:34:09,180 INFO L146 ILogger]: Trace formula consists of 539 conjuncts, 178 conjunts are in the unsatisfiable core [2019-05-23 09:34:09,182 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:34:19,931 INFO L146 ILogger]: Checked inductivity of 30976 backedges. 0 proven. 30976 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:34:19,931 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:34:19,931 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [178] total 178 [2019-05-23 09:34:19,931 INFO L146 ILogger]: Interpolant automaton has 179 states [2019-05-23 09:34:19,932 INFO L146 ILogger]: Constructing interpolant automaton starting with 179 interpolants. [2019-05-23 09:34:19,933 INFO L146 ILogger]: CoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2019-05-23 09:34:19,933 INFO L146 ILogger]: Start difference. First operand 359 states and 359 transitions. Second operand 179 states. [2019-05-23 09:34:20,746 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:34:20,746 INFO L146 ILogger]: Finished difference Result 362 states and 362 transitions. [2019-05-23 09:34:20,747 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 179 states. [2019-05-23 09:34:20,747 INFO L146 ILogger]: Start accepts. Automaton has 179 states. Word has length 358 [2019-05-23 09:34:20,747 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:34:20,748 INFO L146 ILogger]: With dead ends: 362 [2019-05-23 09:34:20,748 INFO L146 ILogger]: Without dead ends: 362 [2019-05-23 09:34:20,749 INFO L146 ILogger]: 0 DeclaredPredicates, 357 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=15931, Invalid=15931, Unknown=0, NotChecked=0, Total=31862 [2019-05-23 09:34:20,749 INFO L146 ILogger]: Start minimizeSevpa. Operand 362 states. [2019-05-23 09:34:20,751 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 362 to 361. [2019-05-23 09:34:20,751 INFO L146 ILogger]: Start removeUnreachable. Operand 361 states. [2019-05-23 09:34:20,752 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 361 states to 361 states and 361 transitions. [2019-05-23 09:34:20,752 INFO L146 ILogger]: Start accepts. Automaton has 361 states and 361 transitions. Word has length 358 [2019-05-23 09:34:20,752 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:34:20,752 INFO L146 ILogger]: Abstraction has 361 states and 361 transitions. [2019-05-23 09:34:20,752 INFO L146 ILogger]: Interpolant automaton has 179 states. [2019-05-23 09:34:20,752 INFO L146 ILogger]: Start isEmpty. Operand 361 states and 361 transitions. [2019-05-23 09:34:20,754 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 361 [2019-05-23 09:34:20,754 INFO L146 ILogger]: Found error trace [2019-05-23 09:34:20,754 INFO L146 ILogger]: trace histogram [177, 177, 1, 1, 1, 1, 1, 1] [2019-05-23 09:34:20,754 INFO L146 ILogger]: === Iteration 178 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:34:20,754 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:34:20,754 INFO L146 ILogger]: Analyzing trace with hash -2050604807, now seen corresponding path program 177 times [2019-05-23 09:34:20,755 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:34:20,777 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:34:20,780 INFO L146 ILogger]: Trace formula consists of 542 conjuncts, 179 conjunts are in the unsatisfiable core [2019-05-23 09:34:20,782 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:34:31,668 INFO L146 ILogger]: Checked inductivity of 31329 backedges. 0 proven. 31329 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:34:31,668 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:34:31,668 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [179] total 179 [2019-05-23 09:34:31,669 INFO L146 ILogger]: Interpolant automaton has 180 states [2019-05-23 09:34:31,670 INFO L146 ILogger]: Constructing interpolant automaton starting with 180 interpolants. [2019-05-23 09:34:31,671 INFO L146 ILogger]: CoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2019-05-23 09:34:31,671 INFO L146 ILogger]: Start difference. First operand 361 states and 361 transitions. Second operand 180 states. [2019-05-23 09:34:32,556 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:34:32,557 INFO L146 ILogger]: Finished difference Result 364 states and 364 transitions. [2019-05-23 09:34:32,557 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2019-05-23 09:34:32,557 INFO L146 ILogger]: Start accepts. Automaton has 180 states. Word has length 360 [2019-05-23 09:34:32,558 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:34:32,558 INFO L146 ILogger]: With dead ends: 364 [2019-05-23 09:34:32,558 INFO L146 ILogger]: Without dead ends: 364 [2019-05-23 09:34:32,559 INFO L146 ILogger]: 0 DeclaredPredicates, 359 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=16110, Invalid=16110, Unknown=0, NotChecked=0, Total=32220 [2019-05-23 09:34:32,559 INFO L146 ILogger]: Start minimizeSevpa. Operand 364 states. [2019-05-23 09:34:32,561 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 364 to 363. [2019-05-23 09:34:32,561 INFO L146 ILogger]: Start removeUnreachable. Operand 363 states. [2019-05-23 09:34:32,561 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 363 states to 363 states and 363 transitions. [2019-05-23 09:34:32,562 INFO L146 ILogger]: Start accepts. Automaton has 363 states and 363 transitions. Word has length 360 [2019-05-23 09:34:32,562 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:34:32,562 INFO L146 ILogger]: Abstraction has 363 states and 363 transitions. [2019-05-23 09:34:32,562 INFO L146 ILogger]: Interpolant automaton has 180 states. [2019-05-23 09:34:32,562 INFO L146 ILogger]: Start isEmpty. Operand 363 states and 363 transitions. [2019-05-23 09:34:32,563 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 363 [2019-05-23 09:34:32,563 INFO L146 ILogger]: Found error trace [2019-05-23 09:34:32,563 INFO L146 ILogger]: trace histogram [178, 178, 1, 1, 1, 1, 1, 1] [2019-05-23 09:34:32,563 INFO L146 ILogger]: === Iteration 179 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:34:32,563 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:34:32,564 INFO L146 ILogger]: Analyzing trace with hash -1991537384, now seen corresponding path program 178 times [2019-05-23 09:34:32,564 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:34:32,583 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:34:32,586 INFO L146 ILogger]: Trace formula consists of 545 conjuncts, 180 conjunts are in the unsatisfiable core [2019-05-23 09:34:32,588 INFO L146 ILogger]: Computing forward predicates...